Hwai-Shen Liu Professor

Hwai-Shen Liu Professor
劉懷勝 教授
email: hsliu@ntu.edu.tw
office:Dept.of Chemical Engineering 210
Lab Info
Bioprocessing Engineering Laboratory
Dept.of Chemical Engineering 202
  • Education Background

S.Ch.E. National Taiwan University, 1982
M.S.Ch.E. University of Tennessee, 1987
Ph.D.Ch.E.University of Tennessee, 1990

  • Research Topic

Bioremediation by Rhodococcus NTU-1
An alkane-biodegrading bacterium identified as Rhodococcus erythropolis (NTU-1 strain) was isolated from petroleum-contaminated soil. When long-chain alkanes are supplied as the carbon source, NTU-1 tends to form pellets, ranging from 0.1 to 2 cm in diameter, and thus remove significant amount of alkanes by biodegradation and physical trapping in a short period. In batch cultures with 10,000ppmv diesel or crude oil, approximately 90% oil removal was achieved within 4 days. If NTU-1 was properly cultured and heat-dried, the cells could work as bio-flocculating agent that could shorten the clean up time to 12h. Meanwhile, the cells further showed good capability to de-emulsify oil/water/surfactant emulsion system and may play a role in separate oil from tertiary recovery in petroleum industry.

Process Intensification: Higee separation
The chemical industry, especially petroleum refinery, is often associated with high capital investment and land/space requirement. Due to their bulky sizes, serious concerns are inevitable, such as high-energy consumption, hazardous raw materials hold-up and safety control. Since these drawbacks are primarily inherited from the relatively low efficiencies of the unit operations, the concept of “process intensification” was brought up to resolve these shortcomings. A Higee unit, which replaces gravity with centrifugal force up to several hundred times of gravity to enhance mass transfer efficiency, plays an important role in the field of process intensification. We haven investigated the design equations of this Higee unit and successfully demonstrated the enhancement up to one to three order of magnitude in absorption, stripping, adsorption, and nanoparticles preparation experimentally.

  • Recent Research Topic


2.綠色化學程序」尖端技術科專計劃 第二期(3/3)

  • Honor
  1. Editorial board member: J. Tw. Inst. Chem. Engrs. (2005-2017)
  2. Committee member for Asian Society for Environmental Biotechnology (ASEB) 2006.9-2016.8
  3. 中華生化工程學會(BEST: Biochemical Engineering Society of Taiwan): 發起人(2001.4), 常務監事(2001~2004),監事(2004~2007)理事(2007-2009)
  4. 台灣化學科技產業協進會(TCIA: Taiwan Chemical Industry Association) 監事(2009.11—2015.11)
  5. 台灣化學工程學會:常務理事 (2011-2013) 理事 (2013-2015)
  6. 台灣化學工程學會: 2019 傑出論文獎 “A Novel Strategy of Biodiesel Production from Wet Microalgae by Direct Saponification-Esterification Conversion (DSEC) “ (與指導學生共得方盈茹、葉芸)
  1. J. T. Hsieh, M. Y. Wang, J. T. Lai and H. S. Liu “A novel static cultivation of bacterial cellulose production by intermittent feeding strategy” Journal of the Taiwan Institute of Chemical Engineers 63:46-51 (2016) (SCI, EI)
  2. C. T. Kuo, Y. L. Chen, W. T. Hsu, S. C. How, Y. H. Cheng, S. S. Hsueh, H. S. Liu, T. H. Lin, J. W. Wu, S. S. S. Wang, “Investigating the effects of erythrosine B on amyloid fibril formation derived from lysozyme” International Journal of Biological Macromolecules, 98:159–168 (2017) (SCI, EI) (合著)
  3. C. Y. Chiang, D. W, Lee, H. S. Liu “Carbon Dioxide Capture by Sodium Hydroxide-Glycerol Aqueous Solution in a Rotating Packed Bed” Journal of the Taiwan Institute of Chemical Engineers 72:29-36 (2017) (SCI, EI)
  4. C. H. Wang, W. H. Chen, H. S. Liu, J. T. Lai, C. C. Hsu, B. Z. Wan “Process development for producing a food-grade glucose solution from rice straws” Chinese Journal of Chemical Engineering 26:386-391 (2018) (SCI, EI) (合著)
  5. Y. R. Fang, Y, Yeh and H. S. Liu “A Novel Strategy of Biodiesel Production from Wet Microalgae by Direct Saponification-Esterification Conversion (DSEC)” Journal of the Taiwan Institute of Chemical Engineers 83:23-31(2018) (SCI, EI)