楊祖保 教授 / Ralph T. Yang Professor

Index
楊祖保 教授
Ralph T. Yang

電話
傳真(734) 764-7453
電子郵件 yang@umich.edu
實驗室(734) 936-0771
研究室資料
觸媒及材料科學

  • 學經歷
  • 國立台灣大學 學士(1964)
    美國耶魯大學 碩士(1968)
    美國耶魯大學 博士(1971)

  • 研究主題
  • 觸媒及材料科學
    Adsorption. This research is focused on gas adsorption for the purpose of separation and purification. All fundamental aspects of adsorption are being studied: 1) Gas-solid equilibria, 2) Diffusion (pore diffusion, surface diffusion, diffusion in zeolites), 3) Dynamics in fixed-bed adsorbers, 4) Cyclic adsorption/desorption processes with particular interest in pressure swing adsorption, and 5) the hysteresis phenomena. We are also exploring field-assisted adsorption and desorption. We have had success in ultrasound assisted desorption of strongly adsorbed molecules, such as phenols, on activated carbon and resins. We have found that ultrasound could replace chemical regeneration.

    New Adsorbent Materials. We are exploring the possibility of synthesizing new sorbents by exploiting weak and reversible chemical bonds, such as pi-complexation. The pi-complexion is used for olefin-paraffin separations, e.g., diene/olefin and aromatic/aliphatic separations. and other difficult hydrocarbon separations. Immobilized cyanocobaltates are being developed for O2-selective adsorption. Zeolites containing mixed cations including Ag are being studied as superior N2-selective sorbents. An understanding for the bonding as well as design of the sorbents is being obtained through molecular orbital calculations. A methodology has been developed for sorbent design by applying Molecular Orbital (MO) theory. From MO calculations, for any given targeted adsorbate, we can quickly determine the best cation and anion to be placed on the surface.

    We are developing new sorbent materials which are tailored to provide desired diffusivities for different gas molecules. With these sorbents, it will be possible to accomplish separations of gas mixtures by kinetic separation. Pillared clay is one of these materials that is being studied. Amines grafted on silica or MCM-48 are being explored as sorbents for acid gases. This is our first attempt to replace solvent extraction with dry adsorption by taking the approach of immobilizing extractants on solid substrates.

    We have been studying new sorbents for the purpose of removing sulfur compounds from gasoline and diesel fuels. The current level of sulfur in gasoline and diesel is about 350 ppm, which must be lowered to below 30 ppm for gasoline and 15 ppm for diesel in 2006 under the federal law. Adsorption appears to be the most economical way (and possibly the only feasible way) to accomplish this difficult task. We have already shown that our pi-complexation sorbents are substantially better than all commercially available sorbents for the adsorption of low concentrations of thiophene from benzene. A major effort in developing this type of sorbents is on-going in our laboratory.

    For hydrogen storage materials our approach is to use hydrogen spillover via an added catalyst in nanostructured carbons. We are working on sorbents that will meet the DOE target of 6.5% wt% storage at room temperature, and also to obtain a basic understanding of the hydrogen spillover mechanism.

    Environmental Catalysis. The selective catalytic reduction (SCR) of NO with ammonia is a process that has been commercialized in the U.S. for power plant emission control. We are studying new catalysts for this reaction. We have had success with pillared clays and ion-exchanged pillared clays for these applications. The Fe(3+) and Cu(2+) ion-exchanged pillared clays are particularly active for these reactions. A U.S. patent has been granted for this work. Other active new catalysts for this reaction developed in our laboratory are: Fe-ZSM-5 and Fe-MOR.

    We have been developing catalysts for low temperature SCR as well as that for low temperature selective catalytic oxidation of ammonia. Most active catalysts have been developed for both applications.

    Gas-Carbon Reactions. Research is being conducted on the kinetics and mechanisms of gas-carbon reactions, both uncatalyzed and catalyzed. These reactions are important in coal conversion, metallurgy, catalyst regeneration, and a number of chemical processes. We are focusing on the C-NO reaction which is of importance in environmental control.
    Our approach has been to study rates on well defined active sites of carbon using single crystal graphite. We have been using MO theory to understand the mechanisms of the gas-carbon reactions. A new surface oxygen intermediate was proposed with which a unified mechanism can be applied to all gas-carbon reactions involving oxygen atoms.

    Carbon Nanotubes and Hydrogen Storage. We are studying carbon nanotubes and graphite nanofibers (GNF) as unique sorbents. We have already found that multiwall nanotubes are the best selective sorbents for dioxins and also for NO. We are sorting out the controversies on issues of hydrogen storage in carbon nanotubes. We are also developing new nanomaterials for hydrogen storage by a spillover mechanism.

  • 最新研究
  • 榮譽獎項
  • 美國密西根大學Ann Arbor化工系傑出講座教授
    美國國家工程院士
    第27屆中央研究院院士

  • 研究著作
  • 379. Y. H. Wang and R. T. Yang, “Increased Hydrogen Spillover by Gaseous Impurity – Benson-Boudart Method for Dispersion Revisited," J. Catalysis, in press (2008).

    378. L. F. Wang and R. T. Yang, “New Sorbents for Hydrogen Storage by Hydrogen Spillover – A Review,” Energy & Environmental Science (Roy. Soc. Chem. Cambridge), Invited Featured Review. 1, 268 (2008).

    377. L. F. Wang and R. T. Yang, “Hydrogen Storage Properties of Carbons Doped with Ruthenium, Platinum and Nickel Nanoparticles,” J. Phys. Chem. C., 112, 12486 (2008).
    376. A.J. Lachawiec, Jr., T. R. DiRaimondo, and R. T. Yang, “A Robust Volumetric Apparatus and Method for Measuring High-Pressure Hydrogen Storage Properties of Nanostructured Materials,” Rev. Sci. Instr. , 79, 063906 (2008).
    375. A. J. Lachawiec, Jr. and R. T. Yang, “Isotope Tracer Study of Hydrogen Spillover on Carbon-Based Adsorbents for Hydrogen Storage,” Langmuir, 24, 6159 (2008).
    374. Y. H. Wang, R. T. Yang and J. M. Heinzel, “Desulfurization of Jet Fuel JP-5 Light Fraction by MCM-41 and SBA-15 Supported Cuprous Oxide for Fuel Cell Applications,” Ind. Eng. Chem. Res., in press.
    373. Y. W. Li and R. T. Yang, “Hydrogen Storage in Metal-Organic Frameworks and a Covalent-Organic Framework,” AIChE Journal, 54, 269 (2008).
    372. Y. H. Wang, R. T. Yang and J. M. Heinzel, “Desulfurization of Jet Fuel by π-Complexation Adsorption with Metal Halides Supported on MCM-41 and SBA-15 Mesoporous Materials,” Chem. Eng. Sci., 63, 356 (2008).
    371, D. Crespo, G. Qi, Y. Wang, F. H. Yang and R. T. Yang, “Superior Sorbent for Natural Gas Desulfurization,” Ind. Eng. Chem. Res., 47, 1238 (2008).
    370. G. Qi, Y. H. Wang and R. T. Yang, “Selective Catalytic Reduction of Nitric Oxide with Ammonia over ZSM-5 Based Catalysts for Diesel Engine Applications,” Catal. Lett., 121, 111 (2008).
    369. Y. Li and R. T. Yang, “Gas Adsorption and Storage in Metal-Organic Framework MOF-177,” Langmuir, 23, 12937 (2007).
    368. Y. Li, R. T. Yang, C. J. Liu and Z. Wang, “Hydrogen Storage on Carbon Doped with Platinum Nanoparticles Using Plasma Reduction,” Ind. Eng. Chem. Res., 46, 8277 (2007).
    367. Y. W. Li and R. T. Yang, “Hydrogen Storage on Platinum Nanoparticles Doped on Super-Activated Carbon, J. Phys. Chem. C. 111, 11086 (2007).
    366. L. P. Ma and R. T. Yang, “Heats of Adsorption from Liquid Solutions and from Pure Vapor Phase: Adsorption of Thiophenic Compounds on NaY and 13X Zeolites,” Ind. Eng. Chem. Res. 46, 4874 (2007).
    365. Y. H. Wang and R. T. Yang, “Desulfurization of Liquid Fuels by Adsorption on Carbon-based Sorbents and Ultrasound-Assisted Sorbent Regeneration,” Langmuir, 23, 3825 (2007).
    364. L. P. Ma and R. T. Yang, “Selective Adsorption of Sulfur Compounds: Isotherms, Heats and Relationship between Adsorption from Vapor and Liquid Solution,” Ind. Eng. Chem. Res., 46, 2760 (2007).
    363. Y. W. Li, F. H. Yang and R. T. Yang, “Kinetics and Mechanistic Model for Hydrogen Spillover on Bridged Metal-Organic Frameworks,” J. Phys. Chem. C, 111, 3405 (2007).
    362. Y. H. Wang, F. H. Yang, R. T. Yang, J. M. Heinzel and A. D. Nickens,
    “Desulfurization of High-Sulfur Jet Fuel by π-Complexation with Copper and
    Palladium Halide Sorbents,” Ind. Eng. Chem. Res., 45, 7649 (2006). .
    361. Y. W. Li and R. T. Yang, “Hydrogen Storage in Low Silica Type X Zeolites,” J. Phys. Chem. B, 110, 17175 (2006).
    360. Y. W. Li and R. T. Yang, “Hydrogen Storage in Metal-Organic Frameworks by Bridged Hydrogen Spillover,” J. Am. Chem. Soc., 128, 8136 (2006).
    359. F. H. Yang, A. J. Lachawiec, Jr. and R. T. Yang, “Adsorption of Spillover Hydrogen Atoms on Single-Wall Carbon nanotubes,” J. Phys. Chem. B., 110, 6236 (2006).
    358. Y. W. Li and R. T. Yang, “Significant Enhancement of Hydrogen Storage Capacity in Metal-Organic Frameworks via Spillover,” J. Am. Chem. Soc., 128, 726 (2006).
    357. D. Crespo and R. T. Yang, “Adsorption of Organic Vapors on Single-Wall Carbon Nanotubes,” Ind. Eng. Chem. Research, 45, 5524 (2006).

    356. A. Jayaraman, F. H. Yang and R. T. Yang, “Effects of Nitrogen Compounds and Polyaromatic Hydrocarbons (PAHs) on Desulfurization of Liquid Fuels by Adsorption via π-Complexation with Cu(I)Y Zeolite,” Energy & Fuels, 20, 909 (2006).
    355. G. S. Qi, R. T. Yang and F. C. Rinaldi, “Catalytic Reduction of Nitric Oxide with Hydrogen over Pd Based Catalysts,” Journal of Catalysis, 237, 381 (2006).
    354. Y. W. Li, F. H. Yang, G. S. Qi and R. T. Yang, “Effects of Oxygenates and Moisture on Adsorptive Desulfurization of Liquid Fuels with Cu(I)Y Zeolite,” Catalysis Today, 116, 512 (2006).
    353. A. J. Lachawiec, Jr., G. S. Qi and R. T. Yang, “Hydrogen Storage in Nanostructured Carbons by Spillover: Bridge Building Enhancement,” Langmuir, 21, 11418 (2005).
    352. A. J. Hernandez-Maldonado, F. H. Yang, G. S. Qi and R. T. Yang, “Sulfur and Nitrogen Removal from Transportation Fuels by -Complexation,” J. Chinese Inst. Chem. Eng. (James Wei Festschrift Issue), 37, 1 (2006).
    351. R. S. Bai and R. T. Yang, “A Modification of Doong-Yang Model for Gas Mixture Adsorption Using Lewis Relationship,” Langmuir, 21, 8326 (2005).
    350. A. J. Hernandez-Maldonado, G. S. Qi and R. T. Yang, “Desulfurization of Commercial Fuels by -Complexation: Monolayer CuCl/-Al2O3,” Appl. Catal. B, 61, 212 (2005).
    349. J. H. Park and R. T. Yang, “Prediction of Adsorption Isotherms of Low- Volatile Compounds by Temperature Programmed Desorption: Adsorption of Iodine on Carbon, “ Langmuir, 21, 5055 (2005).
    348. G. S. Qi and R. T. Yang, “Selective Catalytic Oxidation (SCO) of Ammonia to Nitrogen over Fe/ZSM-5 Catalysts,” Appl. Catal. A., 287, 25 (2005).
    347. A. Jayaraman and R. T. Yang, “Tailored Clinoptilolites for Nitrogen/Methane Separation,” Ind. Eng. Chem. Res. (Dudukovic issue), 44, 5184 (2005).
    346. G. S. Qi and R. T. Yang, “Low-temperature SCR of NO with Ammonia over Noble Metal Promoted Fe-ZSM-5 Catalysts,” Catal. Lett., 100, 243 (2005).
    345. J. H. Park and R. T. Yang, “A Simple Criterion for Adsorbent Selection for Gas Separation by PSA Processes,” Ind. Eng. Chem. Res., 44, 1914 (2005).
    344. G. S. Qi, J. E. Gatt and R. T. Yang, “Selective Catalytic Oxidation (SCO) of Ammonia to Nitrogen over Fe-Exchanged Zeolites Prepared by Sublimation of FeCl3,” J. Catal., 226, 120 (2004).
    343. G. S. Qi, R. T. Yang, R. Chang, S. Cardoso and R. A. Smith “Deactivation of Fe- ZSM-5 Catalyst for Selective Catalytic Reduction of NO with NH3: Field Study Results,” Appl. Catal. A., 275, 207 (2004).
    342. A. J. Hernandez-Maldonado, R. T. Yang and W. Cannella, “Desulfurization of Commercial Jet Fuel by Adsorption via -Complexation with Vapor Phase Exchanged (VPIE) Cu(I)-Y Zeolites,” Ind. Eng. Chem. Res., 43, 6142 (2004).
    341. A. Jayaraman and R. T. Yang, “Stable Oxygen-Selective Sorbents for Air Separation,” Chem. Eng. Sci., 60, 625 (2005).

    340. A. J. Hernandez-Maldonado, F. H. Yang, G. Qi and R. T. Yang, “Desulfurization of Transportation Fuels by x-Complexation Sorbents: Cu(I)-, Ni(II)-, and Zn(II)- Zeolites,” Appl. Catal. B., 56, 111 (2005).

    339. F. H. Yang, A. J. Hernandez-Maldonado and R. T. Yang, “Selective Adsorption of Organosulfur Compounds from Transportation Fuels by-Complexation,” Separ. Sci. Tech., 39, 1717, (2004).

    338. G. S. Qi and R. T. Yang, “A Superior Fe/ZSM-5 Catalyst for Selective Catalytic Reduction (SCR) of Nitric Oxide with Ammonia,” Appl. Catal. B., 60, 13 (2005).
    337. A. J. Hernandez-Maldonado and R. T. Yang, “Desulfurization of Diesel Fuels by Adsorption via -Complexation with Vapor Phase Exchanged (VPIE) Cu(I)-Y Zeolites,”J. Amer. Chem. Soc., 126, 992 (2004).

    336. A. J. Hernandez-Maldonado and R. T. Yang, “Denitrogenation of Transportation Fuels by Zeolite at Ambient Temperature and Pressure,” Angewan. Chemie. Int. Ed., 43, 1004 (2004).

    335. A. J. Hernandez-Maldonado and R. T. Yang, “Desulfurization of Diesel Fuels via π-Complexation with Nickel(II)-Exchanged X- and Y-Zeolites,” Ind. Eng. Chem. Res., 43, 1081 (2004).

    334. A. J. Hernandez-Maldonado, S. D. Stamatis, R. T. Yang, A. Z. He and W. Cannella, “New Sorbents for Desulfurization of Diesel Fuels via -Complexation: Layered Beds and Regeneration,” Ind. Eng. Chem. Res., 43, 769 (2004).

    333. R. T. Yang, A. J. Hernandez-Maldonado and F. H. Yang, “Desulfurization of Transportation Fuels with Zeolites Under Ambient Conditions,” Science, 301, 79 (2003).

    332. G. S. Qi and R. T. Yang, “Characterization and FT-IR Studies of MnOx-CeO2 Catalyst for Low-temperature SCR of NO with NH3,” J. Phys. Chem. B., 108, 15738 (2004).

    331. A. J. Hernandez-Maldonado and R. T. Yang, “Desulfurization of Transportation Fuels by Adsorption,” Catalysis Reviews – Sci. & Eng., 46, 111 (2004).

    330. A. D. Lueking, R. T. Yang, N. M. Rodriguez and R. T. K. Baker, “Hydrogen Storage in Graphite Nanofibers: Effect of Synthesis Catalyst and Pretreatmen Conditions,” Langmuir, 20, 714 (2004).

    329. G. S. Qi, R. T. Yang and L. T. Thompson, “Catalytic Reduction of Nitric Oxide with Hydrogen and Carbon Monoxide in the presence of Excess Oxygen by Pd Supported on Pillared Clays,” Appl. Catal. A., 259, 261 (2004).

    328. A. J. Hernandez-Maldonado and R. T. Yang, “New Sorbents for Desulfurization by Selective Adsorption via -Complexation: Sulfur Removal from Diesel Fuels,”AIChE Journal, 50. 791 (2004).

    327. G. S. Qi, R. T, Yang and R. Chang, “MnOx-CeO2 Mixed Oxides for Selective Catalytic Reduction of NO with NH3 at Low Temperatures,” Appl. Catal. B Environmental, 51, 93 (2004).

    326. J. Hernandez-Maldonado and R. T. Yang, “Desulfurization of Commercial Liquid Fuels by Selective Adsorption via -Complexation with Cu(I)-Y Zeolite,Ind. Eng. Chem. Res., 42, 3103 (2003).

    325. A. Jayaraman, A. Hernandez-Maldonado, R. T. Yang, D. Chinn, C. L. Munson and D. Mohr, “Clinoptilolites for Nitrogen/Methane Separation,” Chem. Eng. Sci., 59, 2407 (2004).

    324. A. D. Lueking and R. T. Yang, “Hydrogen Spillover onto Carbon: Inference of Spiltover Hydrogen on Optimization for Hydrogen Storage in Carbon Nanotubes,”Appl. Catal. A, 265, 259 (2004).

    323. F. H. Yang and R. T. Yang, “Ab Initio Molecular Orbital Study of the Mechanism of SO2 Oxidation Catalyzed by Carbon,” Carbon, 41, 2149 (2003),

    322. G. Qi and R. T. Yang, “Performance and Kinetics Study for Low-temperature SCR of NO With NH3 over Mn-Ce-Ox Catalyst,” J. Catal., 217, 434 (2003).

    321. G. Qi and R. T. Yang, “Low-temperature SCR of NO with NH3 over USY-Supported Manganese Oxide Based Catalysts,” Catal. Lett., 87, 67 (2003).

    320. R, Bai, J. Deng and R. T. Yang, “Improved Multi-Site Langmuir Model for Mixture Adsorption Using Multi-Region Adsorption Theory,” Langmuir, 19, 2776 (2003).

    319. A. J. Hernandez-Maldonado and R. T. Yang, “Desulfurization of Liquid Fuels by Adsorption via -Complexation with Cu(I)-Y and Ag-Y Zeolites,” Ind. Eng. Chem. Res., 42, 123 (2003).

    318. Z. H. Zhu, G. Q. Lu, J. Finnerty and R. T. Yang,, “Electronic Structure Methods Applied to Gas-Carbon Reactions,” Carbon, 41, 635 (2003).

    317. G. Qi and R. T. Yang, “A Superior Catalyst for Low Temperature NO Reduction with NH3,” Chem. Commun., 848 (2003).

    316. H. Y. Huang, R. T. Yang, D. Chinn and C. L Munson, “Amine Grafted MCM-48 and Silica Xerogel as Superior Sorbents for Acidic Gas Removal from Natural Gas,” Ind. Eng. Chem. Res., 42, 2427 (2003).

    315. Zhu, Z. H., Finnerty, J., Lu, G. Q., Wilson, M. A., Yang, R. T., “Molecular Orbital Theory Calculations of the H2O-Carbon Reaction,” Energy & Fuels, 16, 847 (2002).

    314. A. Lueking and R. T. Yang, “Hydrogen Storage in Carbon Nanotubes: Effect of Residual Metal Content and Pretreatment Temperature,” AIChE Journal, 49, 1556 (2003).

    313. G. Qi and R. T. Yang, “Low-temperature Selective Catalytic Reduction of NO with NH3 over Iron and Manganese Oxides Supported on Titania,” Appl. Catal. B. Environmental, 44, 217 (2003).

    312. R. S. Bai and R. T. Yang, “Heterogeneous, Extended Langmuir Model with MultiRegion Surfaces for Adsorption of Mixtures," J. Coll. Interf. Sci., 253, 16 (2002).

    311. A. J. Hernandez-Maldonado, R. T. Yang, D. Chinn and C. L. Munson, “Carbon Dioxide, Hydrogen Sulfide and Water Vapor Adsorption on a Gismondine Type
    Silicoaluminophophate (SAPO-43)," Langmuir, 19, 2193 (2003).

    310. R. Long, R. T. Yang and R. Chang, “Low Temperature Selective Catalytic Reduction of NO with Ammonia over Fe-Mn Based Catalysts," Chem. Commun.452 (2002).

    309. A. Takahashi, F. H. Yang and R. T. Yang, “New Sorbents for Desulfurization by-Complexation: Thiophene/Benzene Adsorption," Ind. Eng. Chem. Res., 41, 2487 (2002).

    308. A. Jayaraman, R. T. Yang, S. H. Cho, T. S. G. Bhat and V. N. Choudary, “Adsorption of Nitrogen, Oxygen and Argon on NaCe-X Zeolites," Adsorption,8, 271 (2002).

    307. S. U. Rege and R. T. Yang, “Pore Size Distribution of Microporous Materials UsingCorrected Horvath-Kawazoe Models,” J. Chin. Inst. Chem. Eng., 33, 1 (2002) (Norman Li Festschrift Issue).

    306. H. Y. Huang, R. Q. Long and R. T. Yang, “Kinetics of Selective Catalytic Reduction of NO with Ammonia on Fe-ZSM-5 Catalyst," Appl. Catal. A., 235, 241 (2002).

    305. R. T. Yang, A. Takahashi and F. H. Yang, “New Sorbents for Desulfurization of Liquid Fuels by -Complexation," Ind. Eng. Chem. Res., 40, 6236 (2001).

    304. R. Q. Long and R. T. Yang, “Selective Catalytic Reduction of NO with Ammonia over Fe3+-Excahnged Mordenite (Fe-MOR): Catalytic Performance, Characterization and Mechanistic Study,” J. Catal. , 207, 274 (2002).

    303. R. Q. Long and R. T. Yang, " Noble Metal (Pt, Rh, Pd) Promoted Fe-ZSM-5 for Selective Catalytic Oxidation of Ammonia to N2 at Low Temperatures," Catal. Lett., 78, 353 (2002).

    302. A. Takahashi, R. T. Yang, C. L. Munson and D. Chinn, “Cu(I)-Y Zeolite as a Superior Adsorbent for Diene/Olefin Separation," Langmuir, 17, 8405 (2001).

    301. C. P. Byrne, R. T. Yang, Z. H. Zhu and G. Q. Lu, “The Role of Oxygen in the Nitrous Oxide/ Carbon Reaction,” J. Phys. Chem. B., 106, 2592 (2002).

    300. R. Q. Long and R. T. Yang, “Reaction Mechanism of Selective Catalytic Reduction of NO with NH3 over Fe-ZSM-5 Catalysts,” J. Catal., 207, 224 (2002).

    299. R. Long and R. T. Yang, “Selective Catalytic Oxidation of Ammonia to Nitrogen Over Fe2O3–TiO2 Prepared with a Sol-Gel Method,” J. Catal., 207, 158 (2002).

    298. B. S. Schueller and R. T. Yang, “Ultrasound Enhanced Adsorption and Desorption of Phenol on Activated Carbon and Polymeric Resin,” Ind. Eng. Chem. Res, 40, 4912 (2001).

    297. A. Jayaraman, R. T. Yang, C. L. Munson and D. Chinn, “Deactivation of -Complexation Adsorbents by Hydrogen and Rejuvenation by Oxidation,” Ind. Eng.
    Chem. Res., 40, 4370 (2001).
    296. F. H. Yang and R. T. Yang, “Ab Initio Molecular Orbital Study of Adsorption of Atomic Hydrogen on Graphite – Inference on Hydrogen Storage in Carbon Nanotubes,” Carbon, 40, 437 (2002).

    295. A. Takahashi, R. T. Yang, C. L. Munson and D. Chinn, “Influence of Ag Content and H2S Exposure on 1,3-Butadiene/1-Butene Adsorption by Ag-Exchanged Y-Zeolites,” Ind. Eng. Chem. Res., 40, 3879 (2001).

    294. H. Y. Huang and R. T. Yang, “Removal of NO by Reversible Adsorption on Fe-Mn Based Transition Metal Oxides,” Langmuir, 17, 4997 (2001).

    293. S. U. Rege and R. T. Yang, “Propane/Propylene Separation by Pressure Swing Adsorption: Sorbent Comparison and Multiplicity of Cyclic Steady States,” Chem. Eng. Sci., 57, 1139 (2002). .

    292. S, U, Rege and R. T. Yang, “Models for the Pore Size Distribution of Microporous Materials from a Single Adsorption Isotherm,” chapter in Adsorption: Theory, Modeling, and Analysis, edited by J. Toth, Marcel Dekker, New York, Chapter 3, pp. 175-210, 2002.

    291. A. Jayaraman, A. S. Chiao, J. Padin and R. T. Yang, " Kinetic Separation of Methane/Carbon Dioxide by Molecular Sieve Carbons," Sep. Sci. Tech., 37, 2505 (2002).

    290. A. Lueking and R. T. Yang, “Evidence of Hydrogen Spillover onto Carbon Nanotubes in the Presence of Nickel,” J. Catal., 206, 165 (2002). Errata: J. Catal.,211, 565 (2002).

    289. R. Long and R. T. Yang, “Enhancement of Activities by sulfation on Fe-exchanged TiO2-pillared Clay for SelectiveCatalytic Reduction of NO by Ammonia,” Appl. Catal. B- Environmental, 33, 97 (2001)

    288. Z. H. Zhu, J. Finnerty, G.Q. Lu and R. T. Yang, “A Comparative Study of Carbon Gasification with O2 and CO2 by Density Function Calculations,” Energy & Fuels, 16, 1359 (2002).

    287. R. Q. Long and R. T. Yang, “Carbon Nanotubes as Superior Sorbent for Nitrogen Oxides,” Ind. Eng. Chem. Res., 40, 4288 (2001). .

    286. H. Y. Huang, R. Long and R. T. Yang, “A Highly Sulfur Resistant Pt-Rh/TiO2/Al2O3 Storage Catalyst for NOx Reduction Under Lean-Rich Cycles,” Appl. Catal. B. Environmental, 33, 127 (2001).

    285. S. U. Rege and R. T. Yang, “A Novel FTIR Method for Studying Mixed Gas Adsorption at Low Concentrations: H2O and CO2 on NaX Zeolite and -Alumina,” Chem. Eng. Sci., 56, 3781 (2001)

    284. R. Bai and R. T. Yang, “A Thermodynamically Consistent Langmuir Model for Mixed Gas Adsorption,” J. Coll. Interf. Sci., 239, 296 (2001)

    283. L. Q. Long and R. T. Yang,”Carbon Nanotubes as Superior Sorbent for Dioxins,” J. Am. Chem. Soc., 123, 2058 (2001).

    282. R. T. Yang, “Nanostructured Adsorbents,” in “Nanostructured Materials,” Ed. J. Y. Ying, Advances in Chemical Engineering (Ed.: J. Wei), Academic Press, New York, pp. 80-125, 2001.

    281. A. Takahashi and R. T. Yang, “ New Adsorbents for Purification: Selective Removal of Aromatics,” AIChE J., 48, 1457 (2002).

    280. R. Q. Long and R. T. Yang, “Selective Catalytic Oxidation of Ammonia to Nitrogen over Fe-Exchanged Zeolites,” J. Catal., 201, 145 (2001),

    279. Z. H. Zhu, J. Finnerty., G. Q. Lu, R. T. Yang, :"Opposite Roles of O2 in NO- and N2O-Carbon Reactions: An Ab Initio Study," J. Phys. Chem., B, 105, 821 (2001).
    278. H. Y. Huang, R. Q. Long and R. T. Yang, “The Promoting Role of Noble Metals on NOx Storage Catalyst Under Lean Burn Conditions,” Energy & Fuels., 15, 205 (2001).

    277. R. Long and R. T. Yang, " Temperature Programmed Desorption/Surface Reaction (TPD/TPSR) Study of Fe-ZSM-5 for Selective Catalytic Reduction of Nitric Oxide by Ammonia," J. Catal., 198, 20 (2001).

    276. R. Long and R. T. Yang, “Fe-ZSM-5 for Selective Catalytic Reduction of NO by NH3: A Comparative Study of Different Preparation Techniques,: Catal. Lett. 74, 201 (2001)

    275. A. Takahashi, F.H. Yang and R.T. Yang, “Aromatics/Aliphatics Separation byAdsorption: New Sorbents for Selective Aromatics Adsorption by – Complexation,”Ind. Eng. Chem. Res., 39, 3856 (2000).

    274. S. U. Rege, R.T. Yang, K. Qian and M.A Buzanowski, “Air Purification by Pressure Swing using Single and Layered Beds,” Chem. Eng. Sci., 56, 2745 (2001)

    273. S. U. Rege and R. T. Yang, “A Simple Parameter for Selection of Sorbent for Gas Separation by Pressure Swing Adsorption,” Separ. Sci. Tech., 36, 3355 (2001).

    272. N. D. Hutson and R. T. Yang, “Structural Effects on the Adsorption of Atmospheric Gases in Mixed Ag,Li -X Zeolite,” AIChE J., 46, 2305 (2000).

    271. S. U. Rege, R. T. Yang and M. A. Buzanowski, “Sorbents for Air Prepurification in Air Separation,” Chem. Eng. Sci., 55, 4827 (2000).

    270. A. J., Kodde, J. Padin, P.J. van der Meer, M. C. Mittelmeijer-Hazeleger, A. Bliek and R. T. Yang, “NiCl2 on -Alumina as Selective Adsorbents for Acetylene over Ethylene,” Ind. Eng. Chem. Res., 39, 3108 (2000).

    269. R. Q. Long and R. T. Yang, “The Promoting Role of Rare Earth Oxides on Fe-Exchanged TiO2-Pillared Clay for Selective Catalytic Reduction of Nitric Oxide by Ammonia,” Appl. Catal., 27, 87 (2000).
    268. N. D. Hutson, S. C. Zajic and R. T. Yang, “The Influence of Residual Water on the Adsorption of Atmospheric Gases in Li-X Zeolite: Experiment and Simulation,” Ind. Eng. Chem. Res., 39, 1775 (2000).

    267. N.D. Hutson and R. T. Yang, “Synthesis and Characterization of the Sorption Properties of Oxygen-Binding Cobalt Complexes Immobilized in Nanoporous Materials,” Ind. Eng. Chem. Res., 39, 2252 (2000).

    266. J. Padin, S.U. Rege, R. T. Yang and L. S. Cheng, “Molecular Sieve Sorbents For Kinetic Separation of Propane/Propylene,” Chem. Eng. Sci., 55, 4525 (2000).

    265. R. T. Yang, “Hydrogen Storage by Alkali-Doped Carbon Nanotubes – Revisited,” Carbon, 38, 623 (2000).

    264. S. U. Rege and R. T. Yang, “Corrected Horvath-Kawazoe Equations for Nanopore Size Distribution,” AIChE Journal, 46, 734 (2000).

    263. R. Q. Long and R. T. Yang, “Characterization of Fe-ZSM-5 Catalyst for Selective Catalytic Reduction of Nitric Oxide by Ammonia,” J. Catal., 194, 80 (2000).

    262. N. D. Hutson, R. T. Yang, B. A. Reisner and B.H. Toby, “Silver Ion-exchanged Zeolites Y, X and Low Silica X: Observations of Thermally Induced Cation/Cluster Migration and the Resulting Effects on the Equilibrium Adsorption of Nitrogen,” Chem. Mater, 12, 3020 (2000).

    261. R. Long and R. T. Yang, “Selective Catalytic Reduction of NO with Ammonia over V2O5 Doped TiO2-Pillared Clay Catalysts,” Appl. Catal.,B., 24, 13 (2000).

    260. R. Long and R. T. Yang, " Superior Ion-exchanged ZSM-5 Catalysts for Selective Catalytic Oxidation of Ammonia to Nitrogen, " Chem. Commun., 16, 1651 (2000).

    259. N. Sundaram and R. T. Yang, “Binary Diffusion of Unequal Sized Molecules in Zeolites,” Chem. Eng. Sci., 55, 1747 (2000).

    258. F. Stepanek, M. Kubicek, M. Marek, M. Soos, P. Rajniak and R.T. Yang, “On the Modeling of PSA Cycles with Hysteresis-Dependent Isotherms,” Chem. Eng. Sci., 55, 431 (2000).

    257. R. Long and R.T. Yang, “FTIR and Kinetic Studies of the Mechanism of Fe3+ exchanged TiO2-pillared Clay Catalyst for Selective Catalytic Reduction of NO with Ammonia,” J. Catal., 190, 22 (2000).

    256. S. U. Rege and R. T. Yang, “Kinetic Separation of Oxygen and Argon using Molecular Sieve Carbon,” Adsorption, 6, 15 (2000).

    255. S. Wongtanakitcharoen, T., Tatiyakiatisakun and R. T. Yang, “Kinetics of C-NO and C-N2O Reactions,” Energy & Fuels, 15, 1341 (2001).

    254. R. Q. Long and R. T. Yang, “Catalytic Performance and Characterization of VO2+-Exchanged Titania-Pillared Clay for Selective Catalytic Reduction of Nitric Oxide by Ammonia,” J. Catal., 196, 73 (2000).

    253. R. T. Yang, R. Long, J. Padin, A.Takahashi and T. Takahashi, “Adsorbents for Dioxins: A New Technique for Sorbent Screening for Low-Volatile Organics.” Ind. Eng. Chem. Res., 38, 2726 (1999).

    252. R. Long and R.T. Yang, “Superior Fe-ZSM-5 Catalyst for Selective Catalytic Reduction of Nitric Oxide by Ammonia,” J. Amer. Chem. Soc., 121, 5595 (1999).

    251. J. Padin, R.T. Yang and C.L. Munson, “New Sorbents for Olefin-Paraffin Separations and Olefin Purification for C4 Hydrocarbons,” Ind. Eng. Chem. Res. (G.E. Keller Festschrift), 38, 3614 (1999).

    250. J. Padin and R.T. Yang, “New Sorbents for Olefin-Paraffin Separations by Adsorption via -Complexation: Synthesis and Effects of Substrates,” Chem. Eng. Sci., 55, 2607 (2000).

    249. Z. H. Zhu, G. Lu and R. T. Yang, “New Insights into Alkali Catalyzed Gasification Reactions of Carbon: Comparison of N2O Reduction with Carbon on Na and K Catalysts,” J. Catal., 192, 77 (2000).

    248. R.T. Yang, ”Predictive Sagiv-Stroeve Model for Diffusion through Monolayer and Multilayer Films,” J. Coll. Interf. Sci., 210, 228 (1999).

    247. N.D. Hutson, S.U. Rege and R. T. Yang, “Mixed Cation Zeolites: AgxLiyX as Superior Adsorbents for Air Separation,” AIChE Journal, 45, 724 (1999).

    246. R. Long, R.T. Yang and K. Zammit, “Superior Pillared Clay Catalyst for Selective Catalytic Reduction of NO for Power Plant Emission Control,” J. Air Waste Management Assoc., 50, 436 (2000).

    245. P. Rajniak, M. Soos and R. T. Yang, “Unified Model for Adsorption-Desorption Equilibria and Kinetics for Systems with Hysteresis,” AIChE Journal, 45, 735 (1999).

    244. Z. Li and R. T. Yang, “Concentration Profiles for Linear Driving Force Model for Diffusion in a Particle,” AIChE Journal, 45, 196 (1999).

    243. H.Y. Huang and R.T. Yang, “Catalyzed Carbon-NO Reaction Studied by Scanning Tunneling Microscopy and ab initio Molecular Orbital Calculations,” J. Catal., 185, 286 (1999).

    242. N. D. Hutson, M.J. Hoekstra and R. T. Yang, “Control of Microporosity of Alumina-Pillared Clays: Effects of pH, Calcination Temperature and Clay Cation Exchange Capacity,” Micropor. Mesopor. Mater., 28, 447(1999).

    241. R. Long and R. T. Yang, “Acid and Base Treated Fe3+ -TiO2-Pillared Clays for Selective Catalytic Reduction of NO by Ammonia,” Catal. Lett., 59, 39 (1999).

    240. H. Y. Huang, R. T. Yang and N. Chen, “Anion Effects on the Adsorption of Acetylene by Nickel Halides,” Langmuir., 15, 7647 (1999).
    239. R. Long and R.T. Yang, “Catalytic Performance of Superior Fe-ZSM-5 Catalysts for Selective Catalytic Reduction of Nitric Oxide by Ammonia,” J. Catal., 188, 332 (1999).

    238. R. Long and R. T. Yang, “In Situ FTIR Study of Rh-Al-MCM-41 Catalyst for Selective Catalytic Reduction of NO with Propylene in the Presence of Excess Oxygen,” J. Phys. Chem.. B, 103, 2232 (1999).

    237. R. Long and R. T. Yang, “Selective Catalytic Reduction of Nitrogen Oxides by Ammonia over Fe3+-exchanged TiO2 Pillared Clay Catalysts,” J. Catal., 186, 254 (1999).

    236. H.Y. Huang, J. Padin and R.T. Yang, “Ab Initio Effective Core Potential Study of Olefin/Paraffin Separation by Adsorption via -Complexation: Anion and Cation Effects on Selective Olefin Adsorption,” J. Phys. Chem. B, 103, 3206 (1999).

    235. H.Y. Huang, J. Padin and R.T. Yang, “Comparison of -Complexations of Ethylene and Carbon Monoxide and Cu+ and Ag+,” Ind. Eng. Chem. Res., 38, 2720 (1999).

    234. Z. Li, R.T. Yang and M.A. Buzanowski, “New Concentration Profile and Corresponding Driving-Force Approximation for Diffusion in a Particle,” Chem. Eng. Sci., submitted.

    233. R. Long and R.T. Yang, “Selective Catalytic Reduction of NO with C2H4 on Copper Ion-Exchanged MCM-41 Molecular Sieves,” Ind. Eng. Chem. Res., 38, 873 (1999).

    232. N. Chen, R.T. Yang and R.S. Goldman, “Kinetics of Carbon-NO Reaction Studied by Scanning Tunneling Microscopy on the Basal Plane of Graphite,” J. Catal., 180, 245 (1998).

    231. R.T. Yang and N. Tharapiwattananon, “Ion Exchanged Pillared Clays for the Selective Catalytic Reduction of NO by Ethylene in the Presence of Excessive Oxygen,” Applied Catal., 19, 289 (1998).

    230. N. Chen and R.T. Yang, “Ab Initio Molecular Orbital Study of the Unified Mechanism and Pathways for Gas -Carbon Reactions,” J. Phys. Chem. A., 102, 6348 (1998).

    229. N.D. Hutson, D.J. Gualdoni and R.T. Yang, “Synthesis and Characterization of the Microporosity of Ion-Exchanged Alumina Pillared Clays,” Chem. Mater., 10, 3715 (1998).

    228. S. U. Rege, J. Padin and R. T. Yang, “Olefin-Paraffin Separations by Adsorption: Equilibrium Separation by -Complexation vs. Kinetic Separation,” AIChE J., 44, 799 (1998).

    227. S. U. Rege, R. T. Yang and C. A. Cain, “Desorption of Strongly Adsorbed Species by Ultrasound: Phenol on Activated Carbon and Polymeric Resin,” AIChE J., 44, 1519 (1998).

    226. M. Sirilumpen and R.T. Yang, “Selective Catalytic Reduction of NO by Hydrocarbon on Cu2+ Exchanged Pillared Clay: IR Study of NO Decomposition Mechanism,” J. Mol. Catal., 137, 273 (1999).

    225. S.U. Rege and R.T. Yang, “A Binary-UNILAM Model for predicting Binary Mixture Adsorption on Energetically Heterogeneous Surfaces,” in Adsorption in Porous Solids (Edited by R. Staudt), Reihe 3, Nr. 555, VDI Verlag, Dusseldorf, Germany, 1998, pp. 141-156.

    224. N. Sundaram and R. T. Yang, “Effects of Main- and Cross-Term Diffusivities on Kinetic Separation by Pressure Swing Adsorption,” Chem. Eng. Sci., 53, 1901 (1998).

    223. R. T. Yang and W. Li., “Reversible Chemisorption of Nitric Oxide in the Presence of Oxygen on Titania and Titania Modified with Surface Sulfate,” Applied Catalysis A., 169, 215 (1998).

    222. N. Sundaram and R.T. Yang, “On the Pseudo-Multiplicity of Pressure Swing Adsorption Periodic States,” Ind. Eng. Chem. Res., 37, 154 (1998).

    221. R. Long and R.T. Yang, “Selective and Reversible Adsorbents for Nitric Oxide from Combustion Gases,” in “Adsorption and Its Applications in Environmental Protection,” (A. Dabrowski, Ed.), Elsevier, Amsterdam, Studies in Surface Science and Catalysis, v. 120 (pt. B), pp. 435-453, 1999.

    220. N. Chen and R.T. Yang, “Ab Initio Molecular Orbital Calculation on Graphite :Selection of Molecular System and Model Chemistry,” Carbon, 36, 1061 (1998).

    219. N. Sundaram and R.T. Yang, “Isosteric Heats of Adsorption from Gas Mixtures," J. Coll. Interface Sci., 198, 378 (1998).

    218. J.H. Park, J.N. Kim, S.H. Cho, J.D. Kim and R. T. Yang,”Adsorber Dynamics and Optimal Design of Layered Beds for Multicomponent Gas Separation,” Chem. Eng. Sci., 53, 3951 (1998).

    217. R. Long and R. T. Yang, “Pt/MCM-41 Catalyst for Selective Catalytic Reduction of NO with Hydrocarbons in the presence of Excess Oxygen,” Catal. Lett., 52, 91 (1998).

    216. Y.D. Chen and R. T. Yang, “Surface and Mesoporous Diffusion with Multilayer Adsorption," in “Activated Carbon: Recent Theoretical Developments," Ed. B. McEnaney, Carbon (Special Issue), 36, 1525 (1998).

    215. N. Sundaram and R.T. Yang, “Incorporating Henry’s Law in the Dubinin Isotherm,” Carbon, 36, 305 (1998).

    214. Y. D. Chen and R. T. Yang, “Multicomponent Diffusion in Zeolites and Multicomponent Surface Diffusion,” in Equilibrium and Dynamics of Gas Adsorption on Heterogeneous Solid Surfaces (ed. W. Rudzinski, W. A. Steele), Elsevier, Amsterdam (1997), Chapter 9. pp.487-518.

    213. N.D. Hutson and R.T. Yang, “Theoretical Basis of the Dubinin-Rudushkevich Isotherm Equation," Adsorption, (Special Issue for Fifty-Year Celebration of Dubinin Theory), 3, 189 (1997).

    212. W. Li, R. T. Yang, K. Krist and J. R. Regalbuto, “Selective Adsorption of NOx from Hot Combustion Gases by Ce-Doped CuO/TiO2," Energy & Fuels, 11, 428 (1997).

    211. L.S. Cheng and R.T. Yang, “Tailoring Micropore Dimensions in Pillared Clays for Enhanced Gas Adsorption," Microporous Mater., 8, 177 (1997).

    210. J. Padin and R. T. Yang, “Tailoring New Adsorbents Based on -Complexation: cation and Substrate Effects on Selective Acetylene Adsorption,” Ind. Eng. Chem. Res., 36, 4224 (1997).

    209. S. Wu, S. Han, S.H. Cho, J. N. Kim and R. T. Yang, “Modification of Resin-Type Adsorbents for Ethane-Ethylene Separation,” Ind. Eng. Chem. Res., 36, 2749 (1997).

    208. S. U. Rege and R. T. Yang, “Limits for Air Separation by Adsorption with LiX Zeolite,”. Ind. Eng Chem. Res., 36, 5358 (1997).

    207. R. T. Yang, T. J. Pinnavaia, W. Li and W. Zhang, “Fe3+ -Exchanged Mesoporous Al-HMS and Al-MCM-41 Molecular Sieves for Selective Catalytic Reduction of NO by NH3,” J. Catalysis, 172, 488 (1997).

    206. S.G. Chen and R.T. Yang, “Unified Mechanism of Alkali and Alkaline Earth Catalyzed Gasification Reactions of Carbon by CO2 and H2O," Energy & Fuels, 11, 421 (1997).

    205. P. Rajniak and R.T. Yang, “Unified Network Model for Adsorption-Desorption Kinetics in Systems with Hysteresis," AIChE Journal, 42, 319 (1996).

    204. R.T. Yang, Y.D. Chen, and J.D. Peck, “Zeolites Containing Mixed Cations for Air Separation by Weak Chemisorption-Assisted Adsorption," Ind. Eng. Chem. Res. (E. Ruckenstein Festschrift), 35, 3093(1996).

    203. R.T. Yang and R. Foldes, “New Sorbents Based on Principles of Chemical Complexation: Monolayer Dispersed Ni(II) for Acetylene Separation by -Complexation," Ind. Eng. Chem.. Res., (C. J. King Festschrift), 35, 1006 (1996).

    202. W. Li, M. Sirilumpen and R. T. Yang, “Selective Catalytic Reduction of NO by Ethylene in the Presence of Oxygen by Cu2+ Ion Exchanged Pillared Clay," Applied Catalysis- Environmental, 8, 372(1996).

    201. N. Chen and R. T. Yang, “Ab Initio Molecular Orbital Study of Adsorption of Oxygen, Nitrogen, and Ethylene on Silver-Zeolite and Silver Halides," Ind. Eng. Chem. Res., 35, 4020(1996).

    200. L.S. Cheng and R.T. Yang, “Iron Oxide and Chromia Supported on Titania-Pillared Clay for Selective Catalytic Reduction of Nitric Oxide with Ammonia," J. Catalysis, 164, 70 (1996).

    199. R.T. Yang, E.S. Kikkinides and R. Foldes, “New Sorbents for Olefin-Paraffin and Acetylene Separations by -Complexation," in Fundamentals of Adsorption (M.D. LeVan, Ed.) Engineering Foundation, New York (1996). pp. 1043-1050.

    198. R.T. Yang and L.S. Cheng, “Pillared Clays and Ion Exchanged Pillared Clays as Gas Adsorbents and as Catalysts for Selective Catalytic Reduction of NO," in Access in Nanoporous Materials (T.J. Pinnavaia and M. Thorpe, eds.) pp 73-93, Plenum, New York (1995).

    197. V.I. Sikavitsas, R.T. Yang, M.A. Burns and E.J. Langenmayr, “Magnetically Stabilized Fluidized Bed for Gas Separations: Olefin-Paraffin Separations by -Complexation," Ind. Eng. Chem. Res. (F.G. Helfferich Festschrift), 34, 2873 (1995).

    196. S.G. Chen and R.T. Yang, “Theoretical Investigation of Relationships Between Characteristic Energy and Pore Size for Adsorption in Micropores," J. Coll. Interf. Sci., 177, 298 (1996).

    195. J.P. Chen and R.T. Yang, “Selective Catalytic Reduction of Nitric Oxide by Ammonia on Pillared Clay Catalysts: Possible Mechanism and Promoters," Chem. Eng. Commun. (W.N. Gill Festschrift),152, 161(1996).

    194. R.T. Yang and V.I. Sikavitsas, “Kinetic Theory for Predicting Multicomponent Diffusivities from Pure Component Diffusivities for Surface Diffusion and Diffusion in Molecular Sieves," Chem. Eng. Sci., 50, 3319 (1995).

    193. N. Chen and R.T. Yang, “Activation of Nitric Oxide by Heteropoly Compounds: Structure of Nitric Oxide Linkages in Tungstophosphoric Acid with Keggin Units," J. Catal., 157, 76 (1995).

    192. L.S. Cheng and R.T. Yang, “A New Class of High-Selectivity Sorbents for Air Separation: Lithium Ion Exchanged Pillared Clays," Ind. Eng. Chem. Res., 34, 2021 (1995).

    191. J.D. Peck and R.T. Yang, “Effect of Binary Cross-Term Diffusivities in Molecular Sieve on Adsorber Dynamics," Chem. Eng. Sci., 50, 3487 (1995)..

    190. R.T. Yang and W.B. Li, “Ion-Exchanged Pillared Clays: A New Class of Catalysts for Selective Catalytic Reduction of NO by Hydrocarbons and by Ammonia," J. Catal., 155, 414 (1995).

    189. V.I. Sikavitsas and R.T. Yang, “Predicting Multicomponent Diffusivities for Diffusion in Molecular Sieves with Energy Heterogeneity," Chem. Eng. Sci., 50, 3057 (1995).

    188. L.S. Cheng and R.T. Yang, “Predicting Isotherms in Micropores for Different Molecules and Temperatures from a Known Isotherm by Improved Horvath-Kawazoe Equations," Adsorption, 1, 187 (1995).

    187. R.T. Yang and E.S. Kikkinides, “New Sorbents for Olefin-Paraffin Separations by Adsorption via pi-Complexation," AIChE Journal, 41, 509 (1995).

    186. J.P. Chen, M.C. Hausladen and R.T. Yang, “Delaminated Fe2O3-Pillared Clay: Its Preparation, Characterization and Activities for Selective Catalytic Reduction of NO by NH3," J. Catal., 151, 135 (1995).

    185. E.S. Kikkinides, V.I. Sikavitsas and R.T. Yang, “Natural Gas Desulfurization by Adsorption: Feasibility and Multiplicity of Cyclic Steady States," Ind. Eng. Chem. Res., 34, 255 (1995).

    184. L.S. Cheng and R.T. Yang, “Monolayer Cuprous Chloride Dispersed on Pillared Clays for Olefin-Paraffin Separations by pi-Complexation," Adsorption, 1, 61 (1995).

    183. J.P. Chen and R.T. Yang, “A Molecular Orbital Study of Selective Adsorption of Simple Hydrocarbons on Ag+ and Cu+ Exchanged Resins and Halides," Langmuir, 11, 3450 (1995).

    182. J.N. Kim and R.T. Yang, “Comparison of Activated Carbon and 13X Zeolite for CO2 Reocvery from Flue Gas by Pressure Swing Adsorption," Ind. Eng. Chem. Res., 34, 591 (1995).

    181. Y.D. Chen and R.T. Yang, “Multicomponent Surface Diffusion and Multicomponent Diffusion in Molecular Sieves," Chapter in Dynamics of Gas Adsorption on Heterogeneous Solid Surfaces (Eds. W. Rudzinski and W.A. Steele), Elsevier, Amsterdam (1995).

    180. Y.D. Chen and R.T. Yang, “Preparation of Carbon Molecular Sieve Membrane and Diffusion of Binary Mixtures in the Membrane," Ind. Eng. Chem. Res., 33, 3146 (1994).

    179. S.G. Chen and R.T. Yang, “A General Isotherm for Adsorption of Gases on Solid Surfaces: Theoretical Basis for Dubinin-Astakhov and Dubinin-Radushkevich Equations," Langmuir, 10, 4244 (1994).

    178. P. Rajniak and R.T. Yang, “Hysteresis-Dependent Adsorption-Desorption Equilibrium Cycles: Generalization for Isothermal Conditions," AIChE Journal, 40, 913 (1994).

    177. E.S. Kikkinides and R.T. Yang, “Response to Comments on Concentration and Recovery of CO2 from Flue Gas by Pressure Swing Adsorption,” Ind. Eng. Chem. Res., 33, 2881 (1994).

    176. L.S. Cheng and R.T. Yang, “Improved Horvath-Kawazoe Equations Including Spherical Pore Models for Calculating Micropore Size Distribution," Chem. Eng. Sci., 49, 2599 (1994).

    175. Y.D. Chen, R.T. Yang and P. Uawithya, “Diffusion of Oxygen, Nitrogen and Their Mixtures in Carbon Molecular Sieve," AIChE Journal, 40, 577 (1994).

    174. R.T. Yang and N. Chen, “A New Approach for Nitric Oxide Decomposition Using Sorbent/Catalyst without Reducing Gas: Use of Heteropoly Compounds," Ind. Eng. Chem. Res., 33, 825 (1994).

    173. E.S. Kikkinides, R.T. Yang and S.H. Cho, “Concentrating and Recovery of CO2 from Flue Gas by Pressure Swing Adsorption," Ind. Eng. Chem. Res., 32, 2714 (1993).

    172. S.G. Chen and R.T. Yang, “Pore Structure Alteration of Carbon Molecular Sieve for Separation of Hydrogen Sulfide from Methane by Adsorption," Ads. Sci. Tech. (M.M. Dubinin Memorial Issue), 10, 193 (1993).

    171. S.G. Chen, R.T. Yang, F. Kapteijn and J.A. Moulijn, “A New Surface Oxygen Complex on Graphite: Toward a Unified Mechanism for Carbon Gasification," Ind. Eng. Chem. Res., 32, 2835 (1993).

    170. E.S. Kikkinides and R.T. Yang, “Gas Separation and Purification by Polymeric Adsorbents: Flue Gas Desulfurization and SO2 Recovery with Styrenic Polymers," Ind. Eng. Chem. Res., 32, 2365 (1993).

    169. S.G. Chen and R.T. Yang, “Titration for Basal Plane vs. Edge Plane Surfaces on Graphitic Carbons by Adsorption," Langmuir, 9, 3259 (1993).

    168. P. Rajniak and R.T. Yang, “A Simple Model and Experiments for Adsorption-Desorption Hysteresis: Water Vapor on Silica Gel," AIChE Journal, 39, 774 (1993).

    167. E.S. Kikkinides and R.T. Yang, “Further Study on Approximations for Intraparticle Diffusion Rates in Cyclic Adsorption and Desorption," Chem. Eng. Sci., 48, 1169 (1993).

    166. E.S. Kikkinides and R.T. Yang, “Effects of Bed Pressure Drop on Isothermal and Adiabatic Adsorber Dynamics," Chem. Eng. Sci., 48, 1545 (1993).

    165. J.P. Chen and R.T. Yang, “Selective Catalytic Reduction of Nitric Oxide by Ammonia on SO4-2/TiO2 Superacid Catalyst," J. Catal., 139, 277 (1993).

    164. X. Chu, L.D. Schmidt, S.G. Chen and R.T. Yang, “Catalyzed Carbon Gasification Studied by Scanning Tunneling Microscopy and Atomic Force Microscopy," J. Catal., 140, 543 (1993).

    163. Y.D. Chen and R.T. Yang, “Surface Diffusion of Multilayer Adsorbed Species," AIChE Journal, 39, 599 (1993).

    162. Y.D. Chen, R.T. Yang and L.M. Sun, “Further Work on Predicting Binary Diffusivities from Pure-Component Diffusivities for Surface Diffusion in Zeolites," Chem. Eng. Sci., 48, 2815 (1993).

    161. S.G. Chen and R.T. Yang, “The Active Surface Species of Alkali in Catalyzed Graphite Gasification: Phenolate (C-O-M) Groups vs. Clusters," J. Catal., 141, 102 (1993).

    160. M.S.A. Baksh, E.S. Kikkinides and R.T. Yang, “Characterization by Physisorption of a New Class of Microporous Sorbents: Pillared Clays," Ind. Eng. Chem. Res., 31, 2181 (1992).

    159. R.T. Yang, J.P. Chen, E.S. Kikkinides and J.E. Cichanowicz, “Pillared Clays as Superior Catalysts for Selective Catalytic Reduction of NO with NH3," Ind. Eng. Chem. Res., 31, 1440 (1992).

    158. M.S.A. Baksh and R.T. Yang, “Unique Adsorption Properties and Potential Energy Profiles of Microporous Pillared Clays," AIChE Journal, 38, 1357 (1992).

    157. Z.J. Pan and R.T. Yang, “Strongly Bonded Oxygen in Graphite: Detection by High Temperature TPD and Characterization," Ind. Eng. Chem. Res., 31, 2675 (1992).

    156. S.G. Chen and R.T. Yang, “Mechanism of Alkali and Alkaline Earth Catalyzed Gasification of Graphite by CO2 and H2O Studied by Monolayer Channeling," J. Catal., 138, 12 (1992).

    155. Y.D. Chen and R.T. Yang, “Predicting Binary Fickian Diffusivities from Pure-Component Fickian Diffusivities for Surface Diffusion," Chem. Eng. Sci., 47, 3895 (1992).

    154. M.W. Ackley, R.F. Giese and R.T. Yang, “Clinoptilolite: Untapped Potential for Gas Separations," Zeolites, 12, 780 (1992).

    153. J.P. Chen and R.T. Yang, “Role of WO3 in Mixed V2O5 – WO3/TiO2 Catalyst for Selective Catalytic Reduction of NO with NH3," Appl. Catal., 80, 135 (1992).

    152. M.S.A. Baksh, E.A. Kikkinides and R.T. Yang, “Lithium Type X Zeolite as a Superior Sorbent for Air Separation," Separ. Sci. Tech., 27, 27 (1992).

    151. M.W. Ackley and R.T. Yang, “Adsorption Characteristics of High-Exchange Clinoptilolites," Ind. Eng. Chem. Res., 30, 2535 (1991).

    150. M.W. Ackley and R.T. Yang, “Diffusion in High-Exchange Clinoptilolite," AIChE Journal, 37, 1645 (1991).

    149. E.S. Kikkinides and R.T. Yang, “Simultaneous SO2/NOx Removal and SO2 Recovery from Flue Gas by Pressure Swing Adsorption," Ind. Eng. Chem. Res., 30, 1981 (1991).

    148. R.T. Yang and M.S.A. Baksh, “Pillared Clays as a New Class of Sorbents for Gas Separation," AIChE Journal, 37, 679 (1991).

    147. M.S.A. Baksh and R.T. Yang, “Chromatographic Separation by Pillared Clays," Separation Sci. Tech., 26, 1377 (1991).

    146. R.T. Yang, Y.D. Chen and Y.T. Yeh, “Prediction of Cross-Term Coefficients in Binary Diffusion: Diffusion in Zeolite," Chem. Eng. Sci., 46, 3089 (1991).

    145. M.A. Buzanowski and R.T. Yang, “A Non-Driving Force Approximation for Intraparticle Diffusion in Cyclic Adsorption and Desorption with Short Cycle Times," Chem. Eng. Comm., 104, 257 (1991).

    144. Y.D. Chen and R.T. Yang, “Concentration Dependence of Surface Diffusion and Zeolitic Diffusion," AIChE Journal, 37, 1579 (1991).

    143. J.A. Ritter and R.T. Yang, “Air Purification and Vapor Recovery by Pressure Swing Adsorption: A Comparison of Silicalite and Activated Carbon," Chem. Eng. Comm., 108, 289 (1991).

    142. E.S. Kikkinides, J.A. Ritter and R.T. YAng, “Pressure Swing Adsorption for Simultaneous Purification and Sorbate Recovery," J. Chin. Inst. Chem. Eng., 22, 399 (1991).

    141. Z. Pan and R.T. Yang, “Catalytic Behavior of Transition Metal Oxide in Graphite Gasification by Oxygen, Water and Carbon Dioxide," J. Catalysis, 130, 161 (1991).

    140. M.S.A. Baksh and R.T. Yang, “A Spherical Pore Model for Calculating Cavity Radius and Potential Function of Gas Molecules in Zeolite Cavities," AIChE Journal, 37, 923 (1991).

    139. M.A. Buzanowski and R.T. Yang, “Approximations for Intraparticle Diffusion Rates in Cyclic Adsorption and Desorption," Chem. Eng. Sci., 46, 2589 (1991).

    138. J.A. Ritter and R.T. Yang, “Equilibrium Theory for Hysteresis Dependent Fixed Bed Desorption," Chem. Eng. Sci., 46, 563 (1991).

    137. A. Kapoor and R.T. Yang, “Surface Diffusion on Energetically Heterogeneous Surfaces – An Effective Medium Theory Approach," Chem. Eng. Sci., 45, 3261 (1991).

    136. J.A. Ritter and R.T. Yang, “Pressure Swing Adsorption: Experimental and Theoretical Study on Air Purification and Vapor Recovery," Ind. Eng. Chem. Res., (R. L. Pigford Memorial Issue), 30, 1023 (1991).

    135. A. Kapoor and R.T. Yang, “Contribution of Concentration-Dependent Surface Diffusion to Intraparticle Mass Transfer Rates in Adsorption," Chem. Eng. Sci., 46, 1995 (1991).

    134. J.P. Chen and R.T. Yang, “Mechanism of Poisoning of the V2O5/TiO2 Catalyst for the Reduction of NO by NH3," J. Catalysis, 125, 411 (1990).

    133. M.A. Buzanowski and R.T. Yang, “Simple Design of Monolith Reactor for Selective Catalytic Reduction of NO for Power Plant Emission Control," Ind. Eng. Chem. Res., 29, 2074 (1990).

    132. J.P. Chen, R.T. Yang, M.A. Buzanowski and J.E. Cichanowicz, “Cold Selective Catalytic Reduction of Nitric Oxide for Flue Gas Applications," Ind. Eng. Chem. Res., 29, 1431 (1990).

    131. J.G. Wang and R.T. Yang, “Fabrication of YBa2Cu3O7-x Superconducting Wires by Spray Deposition," in Superconductivity and Applications, ed. H.S. Kwok, Plenum, New York (1990), p. 749.

    130. M.W. Ackley and R.T. Yang, “Kinetic Separation by Pressure Swing Adsorption: Models Solved by Method of Characteristics," AIChE Journal, 36, 1229 (1990).

    129. J.G. Wang and R.T. Yang, “Y-Ba-Cu-O Superconducting Fibers by Spray Pyrolysis on Carbon Fiber Substrate," J. Appl. Phys., 67, 2160 (1990).

    128. M. Baksh, A. Kapoor and R.T. Yang, “A New Composite Sorbent for Methane-Nitrogen Separation by Adsorption," Separ. Sci. Tech., 25, 845 (1990).

    127. J.P. Chen, M.A. Buzanowski, R.T. Yang and J.E. Cichanowicz, “Deactivation of the Vanadia Catalyst in the Selective Catalytic Reduction Process," J. Air and Waste Manag. Assoc., 40, 1403 (1990).

    126. Z. Pan and R.T. Yang, “The Mechanism of Methane Formation from the Reaction Between Graphite and Hydrogen," J. Catal., 123, 206 (1990).

    125. J.A. Ritter, A. Kapoor and R.T. Yang, “Localized Adsorption with Lateral Interaction on Random and Patchwise Heterogeneous Surfaces," J. Phys. Chem., 94, 6785 (1990).

    124. R.T. Yang, P.J. Goethel, J.N. Schwartz and C.R.F. Lund, “Solubility and Diffusivity of Carbon in Metals," J. Catalysis, 122, 106 (1990).

    123. Y.D. Chen, J.A. Ritter and R.T. Yang, “Adsorption of Gas Mixtures at Elevated Pressures and Temperatures," Chem. Eng. Sci., 45, 2877 (1990).

    122. A. Kapoor, J.A. Ritter and R.T. Yang, “An Extended Langmuir Model for Adsorption of Gas Mixtures on Heterogeneous Surfaces," Langmuir, 6, 660 (1990).

    121. Y.T. Yeh and R.T. Yang, “Diffusion in Zeolites Containing Mixed Cations," AIChE Journal, 35, 1659 (1989).

    120. A. Kapoor and R.T. Yang, “Correlation of Equilibrium Adsorption Data of Condensible Vapors on Porous Adsorbents," Gas Separ. Purif., 3, 187 (1989).

    119. C.R.F. Lund and R.T. Yang, “Solid-State Diffusion During Carbon Gasification and Filament Growth," Carbon, 27, 956 (1989).

    118. A. Kapoor, R.T. Yang and C. Wong, “Surface Diffusion," Catalysis Review – Sci. & Engng., 31, 129-214 (1989).

    117. M.A. Buzanowski, R.T. Yang and O.W. Haas, “Direct Observation of the Effects of Bed Pressure Drop on Adsorption and Desorption Dynamics," Chem. Eng. Sci., 44, 2293 (1989).

    116. A. Kapoor, J.A. Ritter and R.T. Yang, “On the Dubinin-Radushkevich Equation for Adsorption in Microporous Solids in the Henry’s Law Region," Langmuir, 5, 1118 (1989).

    115. A. Kapoor and R.T. Yang, “Surface Diffusion on Energetically Heterogeneous Surfaces," AIChE Journal, 35, 1735 (1989).

    114. P.J. Goethel, J.T. Tsamopoulos and R.T. Yang, “Modeling the Channeling Action of Catalysts in Gas-Carbon Reactions," AIChE Journal, 35, 686 (1989).

    113. J.P. Chen and R.T. Yang, “Chemisorption of Hydrogen on Different Planes of Graphite – A Semi-empirical Molecular Orbital Calculation," Surface Science, 216, 481 (1989).

    112. P.L. Cen and R.T. Yang, “High-Purity Hydrogen from Hydrogen-Lean Mixtures by New Pressure Swing Adsorption Cycles," Chem. Eng. Commun., 78, 139-57 (1989).

    111. R.T. Yang and J.P. Chen, “Mechanism of Carbon Filament Growth on Metal Catalysts," J. Catalysis, 115, 52 (1989).

    110. P.J. Goethel and R.T. Yang, “Monolayer Channeling and Monolayer Edge Recession in Catalyzed Graphite Oxidation," J. Catalysis, 119, 201 (1989).

    109. M. Baksh, R.T. Yang and D.D.L. Chung, “High-Selectivity Composite Carbon Adsorbents by Chemical Vapor Deposition," Carbon, 27, 931 (1989).

    108. J.A. Ritter and R.T. Yang, “A Technique for Rapid Measurement of Equilibrium Adsorption from Binary Gas Mixtures," Ind. Eng. Chem. Research, 28, 599 (1989).

    107. A. Kapoor and R.T. Yang, “Kinetic Separation of Methane/Carbon Dioxide by Adsorption on Molecular Sieve Carbon," Chem. Eng. Sci., 44, 1723 (1989).

    106. Z. Pan, R.T. Yang and J.A. Ritter, “Kinetic Separation of Air by Pressure Swing Adsorption," in “New Directions in Sorption Technology," G.E. Keller and R.T. Yang, Ed., Butterworth, Boston, pp. 61-75 (1989).

    105. M.A. Buzanowski and R.T. Yang, “Extended Linear Driving-Force Approximation for Intraparticle Diffusion in Short Times," Chem. Eng. Sci., 44, 2683 (1989).

    104. O.W. Haas, A. Kapoor and R.T. Yang, “Confirmation of Heavy Component Rollup in Diffusion-Limited Fixed-Bed Adsorption," AIChE Journal, 34, 1913 (1988).

    103. S.J. Doong and R.T. Yang, “The Role of Pressure Drop in Pressure Swing Adsorption," AIChE Symp. Ser., 84(No. 264), 145 (1988).

    102. P.J. Goethel and R.T. Yang, “Mechanism of Graphite Hydrogenation Catalyzed by Ruthenium Particles," J. Catalysis, 111, 220 (1988).

    101. P.J. Goethel and R.T. Yang, “The Tunneling Mechanism in Graphite Hydrogenation by Transition Metal Catalysts," J. Catalysis, 114, 46 (1988).

    100. P.L. Cen and R.T. Yang, “Separation of Multicomponent Mixtures by the Pressure Swing Adsorption Process," J. Chem. Ind. Eng. (China), 6, 752 (1988).

    99. S.J. Doong and R.T. Yang, “A Simple Potential-Theory Model for Predicting Mixed-Gas Adsorption," Ind. Eng. Chem. Res., 27, 630 (1988).

    98. A. Kapoor and R.T. Yang, “Separation of Hydrogen-Lean Mixtures for High-Purity Hydrogen by Vacuum Swing Adsorption," Separ. Sci. Tech., 23, 153 (1988).

    97. A. Kapoor and R.T. Yang, “Optimization of a Pressure Swing Adsorption Cycle," Ind. Eng. Chem. Res., 27, 204 (1988).

    96. S.J. Doong and R.T. Yang, “Adsorption of Mixtures of Water Vapor and Hydrocarbons by Activated Carbon Beds: Thermodynamic Model for Adsorption Equilibria and Adsorber Dynamics," AIChE Symposium Ser., 83(No. 259), 87 (1987).

    95. A. Kapoor and R.T. Yang, “Unique Roll-Up Phenomenon in Fixed-Bed Multicomponent Adsorption Under Pore Diffusion Limitation," AIChE Journal, 33, 1215 (1987).

    94. S.J. Doong and R.T. Yang, “Hydrogen Purification by the Multibed Pressure Swing Adsorption Process," in Reactive Polymers, edited by F.G. Helfferich, Elsevier, Amsterdam, 6, 7 (1987).

    93. P.J. Goethel and R.T. Yang, “Mechanism of Graphite Hydrogenation Catalyzed by Nickel," J. Catalysis, 108, 356 (1987).

    92. S.J. Doong and R.T. Yang, “Bidisperse Pore-Diffusion Model for Zeolite PSA Gas Separation," presented at the AIChE Chicago Meeting, November 1985; and AIChE Journal, 33, 1045 (1987).

    91. P.L. Cen and R.T. Yang, “New PSA Cycles for Producing High-Purity Hydrogen from Coal Gasification Products," J. Separ. Proc. Tech., 8, 35 (1987).

    90. J.A. Ritter and R.T. Yang, “Equilibrium Adsorption of Multicomponent Gas Mixtures at Elevated Pressures," Ind. Eng. Chem. Res., 26, 1679 (1987).

    89. S.J. Doong and R.T. Yang, “A Parametric Comparison of Different PSA Cycles for Bulk Gas Separations," Chem. Eng. Commun., 54, 61 (1987).

    88. P.J. Goethel and R.T. Yang, “Catalyzed Carbon Gasification Reaction: Mechanism of Monolayer Channelingby Group VIII Metals,” Proc. Biennial Carbon Conf., Am. Carbon Soc., 505 (1987).

    87. K.L. Yang and R.T. Yang, “Effects of Hydrogen on the Growth of Filamentous Carbon on Metal Surfaces," Carbon, 24, 687 (1986).

    86. P.L. Cen and R.T. Yang, “Analytic Solution for Adsorber Breakthrough Curves with Bidisperse Sorbents – Zeolites," AIChE Journal, 32, 1635 (1986).

    85. P.J. Goethel and R.T. Yang, “Platinum-Catalyzed Hydrogenation of Graphite: Mechanism Studied by the Rates of Monolayer Channeling," J. Catalysis, 101, 342 (1986); also in the Extended Abstracts, 17th Biennial Conference on Carbon, Lexington, KY (1985), p. 471.

    84. R.T. Yang and S.J. Doong, “A Criterion for Pore-Diffusion Limitation in Pressure Swing Adsorption for Gas Separation," Chem. Eng. Commun., 41, 163 (1986).

    83. R.T. Yang and P.L. Cen, “Improved Pressure Swing Adsorption Processes for Gas Separation by Heat Exchange Between Adsorbers and by Using High-Heat-Capacity Inert Additives," Ind. Eng. Chem. Proc. Des. Dev., 25, 54 (1986).

    82. P.L. Cen and R.T. Yang, “Bulk Gas Separation by Pressure Swing Adsorption: Equilibrium and Linear-Driving-Force Models for Binary Separation," Ind. Eng. Chem. Fundam., 25, 758 (1986).

    81. S.J. Doong and R.T. Yang, “Bulk Separation of Multicomponent Gas Mixtures by Pressure Swing Adsorption: Pore/Surface Diffusion and Equilibrium Models," AIChE J., 32, 397 (1986).

    80. P.L. Cen and R.T. Yang, “A New Pressure Swing Adsorption Cycle for Separating the Binary Mixture into Two High-Purity Products," Separ. Sci. and Tech., 21, 845 (1986).

    79. S.J. Doong and R.T. Yang, “Parametric Study of the Pressure Swing Adsorption Process for Gas Separation: A Criterion for Pore Diffusion Limitation," Chem. Eng. Commun., 41, 163 (1986).

    78. W.N. Chen and R.T. Yang, “Adsorption of Gas Mixtures and Modeling Cyclic Processes for Bulk, Multicomponent Gas Separation," Recent Developments in Separation Science, Eds. N.N. Li and J.M. Calo, CRC Press, Cleveland, Vol. IX (1986), pp. 135-160.

    77. N.T. Holcombe, R.M. Kornosky, J.P. Strakey, Jr., M.C. Tsai and R.T. Yang, “Adsorption of Hydrogen-Methane Mixtures on Activated Carbons," Carbon, 23, 167 (1985).

    76. R.T. Yang and S.J. Doong, “Gas Separation by Pressure Swing Adsorption: A Pore Diffusion Model," AIChE J., 31, 1829 (1985).

    75. R.T. Yang, P.L Cen and S.J. Doong, “Bulk Gas Separation of Binary and Ternary Mixtures by Pressure Swing Adsorption," AIChE Symp. Ser., 81(No. 242), 84 (1985).

    74. R.T. Yang and K.L. Yang, “Kinetics and Mechanisms of the Carbon-Steam Reaction on the Monolayer and Multilayer Edges of Graphite," Carbon, 23, 537 (1985).

    73. R.T. Yang and J.T. Saunders, “Adsorption of Gases on Coals and Heat-Treated Coals at Elevated Temperatures and Pressures. I. Adsorption of Methane and Hydrogen from Single Gases," Fuel, 64, 616 (1985).

    72. J.T. Saunders and R.T. Yang, “Adsorption of Gases on Coals and Heat-Treated Coals at Elevated Temperatures and Pressures. II. Adsorption of Hydrogen/Methane Mixtures," Fuels, 64, 621 (1985).

    71. P.L. Cen and R.T. Yang, “Separation of a Five-Component Mixture by Pressure Swing Adsorption," Separ. Sci. Tech., 20(9-10), 725 (1985).

    70. R.T. Yang and K.L. Yang, “Evidence for Temperature Driven Carbon Diffusion Mechanism of Coke Deposition on Catalysts," J. Catalysis, 93, 192 (1985).

    69. K.L. Yang and R.T. Yang, “The Absolute Rates of the Carbon-Carbon Dioxide Reaction," AIChE J., 31, 1313 (1985).

    68. R.T. Yang and S.K. Das, “Coal Demineralization Using Sodium Hydroxide and Acid Solutions," Fuel, 64, 735 (1985).

    67. N.J. Desai, B.M.C. Tsai and R.T. Yang, “Temperature Swing Separation of Hydrogen-Methane Mixture," Ind. Eng. Chem. Proc. Des. Dev., 24, 57 (1985).

    66. R.T. Yang and R. Duan, “Kinetics and Mechanism of Gas-Carbon Reactions: Conformation of Etch Pits, Hydrogen Inhibition, and Anisotropy in Reactivity," Carbon, 23, 325 (1985).

    65. P.L. Cen, W.N. Chen and R.T. Yang, “Ternary Gas Mixture Separation by Pressure Swing Adsorption: A Combined Hydrogen-Methane Separation and Acid Gas Removal Process," Ind. Eng. Chem. Proc. Des. Dev., 24(4), 1201 (1985).

    64. R.T. Yang and K.L. Yang, “Mechanism of Coke Deposition on the Surface of Molybdenite," J. Catalysis, 90, 194 (1984).

    63. R.T. Yang and M.R. Ghate, “Application of the Pressure Swing Adsorption Process for Separation of Hydrogen from Coal Gasification Products," J. Separ. Proc. Tech., 5, 26 (1984).

    62. P.L. Cen and R.T. Yang, “The Formation Energy of Vacancy in Graphite as Calculated from the Rates of Abstraction by Molecular Oxygen," Carbon, 22, 186 (1984).

    61. R.T. Yang, “Etch-Decoration Electron Microscopy Studies of Gas-Carbon Reactions," in Chemistry and Physics of Carbon, Ed. P.A. Thrower, Marcel Dekker, New York, Vol. 19, pp. 163-210 (1984).

    60. B. Halpern, M. Kori, R.T. Yang, C. Wong and D. Gross, “Reactions of Oxygen with Carbon Adsorbed on Metals," Proc. Electrochem. Soc., 84, 110 (1984).

    59. R. Duan and R.T. Yang, “Kinetics of the Reaction Between Steam and the Basal Plane of Graphite," Chem. Eng. Sci., 39, 795 (1984).

    58. C. Wong and R.T. Yang, “Inhibition and Catalysis of the Reaction of Steam on the Basal Plane of Graphite by Potassium Carbonate and Potassium Hydroxide," Ind. Eng. Chem. Fundam., 23, 298 (1984).

    57. R.T. Yang and C. Wong, “Catalysis of Carbon Oxidation by Transition Metal Carbides and Oxides," J. Catalysis, 85, 154 (1984). Also in Extended Abstracts of the 16th Biennial Carbon Conference, Am. Carbon Soc., 623 (1983).

    56. C. Wong, R.T. Yang and B. Halpern, “The Mode of Attach of Oxygen Atoms on the Basal Plane of Graphite," J. Chem. Phys., 78, 3325 (1983).

    55. R.T. Yang and C. Wong, “Scanning Electron Microscopy Study of the Kinetics of Gas – Solid Reactions," Ind. Eng. Chem. Fundam., 22, 380 (1983).

    54. R.T. Yang and C. Wong, “Mechanism of Carbon Gasification – Conformation of Etch Pits on Graphite Surfaces," AIChE J., 29, 338 (1983).

    53. R.T. Yang and C. Wong, “Fundamental Differences in the Mechanisms of Carbon Gasification by Steam and by Carbon Dioxide," J. Catalysis, 82, 245 (1983).

    52. S.S. Wang and R.T. Yang, “Multicomponent Gas Separation by Cyclic Processes," Chem. Eng. Commun., 20, 183 (1983).

    51. N.J. Desai and R.T. Yang, “Catalytic Fluidized-Bed Combustion: Catalyzed Sulfation of Limestone by Iron Oxide," Ind. Eng. Chem. Proc. Des. Dev., 22, 119 (1983).

    50. S.G. Byers, R.T. Yang and J.R. Reinhardt, “Kinetics of the Hydrogen Fluoride – Calcium Oxide Reaction for Fluoride Emission Control," Environ. Sci. Tech., 17, 84 (1983).

    49. B.M.C. Tsai, S.S. Wang and R.T. Yang, “A Pore Diffusion Model for Cyclic Separation – Temperature Swing Separation of Hydrogen and Methane at Elevated Pressures," AIChE J., 29, 966 (1983).

    48. K. Ramanathan and R.T. Yang, “Kinetics of Nitric Oxides Absorption in Calcined Limestone and Dolomite," Chem. Eng. Comm., 18, 107 (1982).

    47. N.J. Desai and R.T. Yang, “Kinetics of the High-Temperature Carbon Gasification Reaction," AIChE J., 28, 237 (1982).

    46. C. Wong and R.T. Yang, “Cooperative Effects in the Reactivity of Carbon," Carbon, 20, 253 (1982).

    45. R.T. Yang and C. Wong, “Etch Decoration – Scanning Electron Microscopy Technique for Measuring Carbon Gasification Rates," Review Sci. Instruments, 53, 1488 (1982).

    44. R.T. Yang and R.T. Liu, “Gaseous Diffusion in Porous Solids at Elevated Temperatures," Ind. Eng. Chem. Fundam., 21, 262 (1982).

    43. R.T. Yang and K.T. Li, “Catalytic Decomposition of Nitric Oxide on Sodium Ferrite," Ind. Eng. Chem. Prod. Res. Dev., 21, 405 (1982).

    42. R.T. Yang and C. Wong, “The Role of Surface Diffusion in the Langmuir-Hinshelwood Mechanism," Chem. Eng. Commun., 11, 317 (1981).

    41. R.T. Yang and C. Wong, “Mechanism of Single-Layer Graphite Oxidation: Evaluation by Electron Microscopy," Science, 214, 437 (1981).

    40. R.T. Yang and C. Wong, “Kinetics and Mechanisms of Oxidation of Basal Plane on Graphite," J. Chem. Phys., 75, 4471 (1981). Also in Extended Abstracts of the 15th Biennial Carbon Conference, Am. Carbon Soc., p. 406 (1981).

    39. N.J. Desai and R.T. Yang, “Kinetic Regimes for the Gas – Carbon Reactions," Proceedings of Governor’s Conference on Coal Utilization, Albany, NY, pp. 353-363 (1981).

    38. R.T. Yang and C. Wong, “The Mechanism of Carbon Oxidation," Div. Fuel Chem. Prepr Storch Award Symp., Amer. Chem. Soc.), 26(3), 189 (1981).

    37. R.T. Yang and C. Wong, “The Role of Surface Diffusion in the Mechanism of Surface Reactions," J. Phys. Chem., 84, 678 (1980).

    36. J.M. Chen and R.T. Yang, “Modeling and Kinetic Studies of a Rotary Kiln Reactor," Trans. Inst. Chem. Eng. (London), 58, 98 (1980).

    35. R.T. Yang and R.T. Liu, “Preferential Adsorption of Methane Over Hydrogen on Certain Coals," Ind. Eng. Chem. Fundam., 18, 299 (1979).

    34. R.T. Yang and R.T. Liu, “Gaseous Diffusion in Carbon with Particular Reference to Graphite," Ind. Eng. Chem. Proc. Des. Dev., 18, 245 (1979).

    33. R.T. Yang and M. Shen, “Direct Evidence of the Existence of Gaseous Intermediates in the Calcium Sulfide – Calcium Sulfate Reaction," AIChE J., 25, 547 (1979).

    32. J.M. Chen and R.T. Yang, “Kinetics and Mechanism of the Regeneration of Lime Sorbent for Fluidized-Bed Combustion," Ind. Eng. Chem. Fundam., 18, 134 (1979).

    31. R.T. Yang, “Mechanochemical Effects in Coal Conversion. I. Coal Hydrogenation in Gaseous Hydrogen Aided by Mechanical Energy," Fuel, 58, 242 (1979).

    30. R.T. Yang and J.M. Chen, “Kinetics of Desulfurization of Hot Fuel Gases with Calcium Oxide: Reaction Between COS and CaO," Environ. Sci. Tech., 13, 549 (1979).

    29. R.T. Yang and M. Shen, “Calcium Silicates – A New Class of Highly Regenerative Sorbents for Hot Gas Desulfurization," AIChE J., 25, 811 (1979).

    28. R.T. Yang and M. Shen, “A Regenerative Limestone Process for Fluidized-Bed Combustion," Ind. Eng. Chem. Proc. Des. Dev., 18, 312 (1979).

    27. R.T. Yang, “Enhancement of Sorbent Utilization in Fluidized-Bed Combustion," Fuel, 57, 709 (1978).

    26. R.T. Yang, M. Shen and M. Steinberg, “Fluidized-Bed Combustion with Lime Additives: Catalytic Sulfation of Lime with Iron Compounds," Environ. Sci. Tech., 8, 195 (1978).

    25. R.T. Yang, J.M. Chen, G. Farber, M. Shen and M. Steinberg, “Regeneration of Lime-Based Sorbents in a Kiln Reactor with Solid Reductants," Proc. Fifth Intern. Conf. Fluidized-Bed Combustion, Vol. 3, 798 (1978).

    24. R.T. Yang, D.S. Sethi and M. Steinberg, “Conversion of Non-Coking Coals into Coking Types with Methane and with Hydrogen," Fuel, 57, 315 (1978).

    23. R.T. Yang, C.R. Krishna and M. Steinberg, “Fluidized-Bed Coal Combustion with Lime Additives. The Phenomenon of Peaking in Sulfur Retention at a Certain Temperature," Ind. Eng. Chem. Fundam., 16, 465 (1977).

    22. R.T. Yang and M. Steinberg, “Effects of Sulfur Dioxide on the Kinetics of Carbon Combustion," J. Phys. Chem., 81, 1117 (1977).

    21. G.I. Senum and R.T. Yang, “Rational Approximations of the Integral of the Arrhenius Function," J. Therma. Analysis, 11, 445 (1977).

    20. R.T. Yang and M. Steinberg, “The Reactivity of Coal Chars with Carbon Dioxide at 1100-1600°C," Div. Fuel Chem. Preprints, Am. Chem. Soc., 22(1), 12 (1977).

    19. R.T. Yang, R.T. Liu and M. Steinberg, “A Transient Technique for Measuring Diffusion Coefficient in Porous Solids," Ind. Eng. Chem. Fundam., 16, 486 (1977).

    18. R.T. Yang, M. Shen and M. Steinberg, “Regeneration of Lime Sorbent for Fluidized Bed Combustion," Proc. Fluidized-Bed Comb. Tech. Exch., Vol. II, 313 (1977).

    17. M. Steinberg, R.T. Yang, T. Hom and A.L. Berlad, “Desulfurization of Coal with Ozone: An Attempt," Fuel, 56, 227 (1977).

    16. R.T. Yang and M. Steinberg, “Differential Thermal Analysis and Kinetics of Nth-Order Reactions," Anal. Chem., 49, 998 (1977).

    15. R.T. Yang and M. Steinberg, “A Diffusion Cell Method for Studying Heterogeneous Kinetics in the Chemical Reaction/Diffusion Controlled Regime. Kinetics of the Reaction C + CO2 at 1200-1600°C," Ind. Eng. Chem. Fundam., 16, 235 (1977).

    14. R.T. Yang and M. Steinberg, “Reaction Kinetics and Differential Thermal Analysis," J. Phys. Chem., 80, 965 (1976).

    13. R.T. Yang, R. Smol and M. Steinberg, “Application of Thermal Analytical Methods in the Characterization of Carbonaceous Materials," Anal. Chem., 48, 1696 (1976).

    12. R.T. Yang and M. Steinberg, “The Function of Sulfur Dioxide in the Kinetic Mechanism of the Carbon Oxidation Reaction," Carbon, 13, 411 (1976).

    11. R.T. Yang, P.T. Cunningham, W.I. Wilson and S.A. Johnson, “Kinetics of the Reaction of Half-Calcined Dolomite with Sulfur Dioxide," Advances in Chemistry Series, 139, 149 (1975). Am. Chem. Soc.

    10. P.T. Cunningham, S.A. Johnson and R.T. Yang, “Variations of the Chemistry of Airborne Particulate Material with Particle Size and Time," Environ. Sci. Tech., 8, 131 (1974).

    9. M.J.D. Low and R.T. Yang, “Infrared Study of the Sorption of NO on CaO," J. Catalysis, 34, 479 (1974).

    8. R.T. Yang and M.J.D. Low, “IR Internal Reflectance Spectra of Methanol – Water Mixtures," Spectrochimica Acta, 30A, 1787 (1974).

    7. R.T. Yang, J. B. Fenn and G. L. Haller, “Surface Diffusion of Stearic Acid on Alumina," AIChE J., 20, 735 (1974).

    6. R.T. Yang and M.J.D. Low, “Quantitative Analysis of Aqueous Nitrite/Nitrate Solution," Anal. Chem., 45, 2014 (1973).

    5. M.J.D. Low and R.T. Yang, “Measurement of IR Spectra of Aqueous Solutions by Fourier Transform Spectroscopy,” Spectrochimica Acta., 29A, 1761 (1973).

    4. R. T. Yang and M.J.D. Low, “IR Spectra of Water in Aqueous Solutions Using Internal
    Reflectance Spectroscopy," Spectroscopy Letters, 6, 299 (1973).

    3. R. T. Yang, M.J.D. Low, G. L. Haller and J. B. Fenn, “Infrared Study of Adsorption in situ at the Liquid-Solid Interface," J. Coll. Interf. Sci., 44, 249 (1973).

    2. R. T. Yang, J. B. Fenn and G. L. Haller, “Modification of the Higashi Model for Surface Diffusion," AIChE J., 19, 1052 (1973).

    1. M. J. D. Low and R. T. Yang, “The Fundamental IR Spectrum of Ammonium Ions in Aqueous Solutions," Spectroscopy Letters, 5, 245 (1972).