Development of a Methanol Absorption System for the Removal of $H_2S$, COS, $CO_2$ in Syngas from Biomass Gasifier

바이오매스 가스화 내의 $H_2S$, COS, $CO_2$ 복합 제거를 위한 메탄올 흡수탑 개발

  • Eom, Won Hyun (Gasification Research Center, Korea Institute of Energy Research) ;
  • Kim, Jae Ho (Gasification Research Center, Korea Institute of Energy Research) ;
  • Lee, See Hoon (Department of Resources and Energy Engineering, Chonbuk National University)
  • 엄원현 (한국에너지기술연구원, 가스화 연구그룹) ;
  • 김재호 (한국에너지기술연구원, 가스화 연구그룹) ;
  • 이시훈 (전북대학교, 자원에너지공학과)
  • Published : 2012.02.10


To make synthetic liquid fuel from biomass such as wood pellet, energy crop and so on, a biomass to liquid (BTL) process by using a biomass gasifier with Fisher-Tropsch (FT) reaction was developed. However $H_2S$, COS and $CO_2$ in syngas from biomass gasifiers resulted in a decrease of the conversion efficiency and the deactivation of the catalyst. To remove acid gases in syngas, a lab-scale methanol absorption tower was developed and the removal characteristics of acid gases were investigated. The methanol absorption tower efficiently removed $H_2S$ and COS with a removal of $CO_2$, so it could be useful process for the BTL process.


synthetic fuel;BTL;methanol;$H_2S$;$CO_2$


  1. S. H. Lee, J. G. Lee, J. H. Kim, and Y. C. Choi, J. Ind. Eng. Chem., 12, 39 (2006).
  2. S. H. Lee, K. B. Choi, J. G. Lee, and J. H. Kim, Korean J. Chem. Eng., 23, 576 (2006).
  3. S. H. Lee, Y. I. Son, C. B. Ko, K. B. Choi, and J. H. Kim, J. Korean Ind. Eng. Chem., 20, 391 (2009).
  4. G. W. Yu, Y. Y. Xu, X. Hao, Y. W. Li, and G. Q. Liu, Fuel, 89, 1070 (2010).
  5. A. Jensen and C. Webb, Enzyme Microb. Technol., 17, 2 (1995).
  6. B. D. Bhide, A. Voskericyan, and S. A. Stern, J. Mem. Sci., 2, 27 (1998).
  7. U. Koss and H. Schlichting, Gasification Technologies 2005, San Francisco (2005).
  8. B. Rurr and L. Lyddon, A Comparison of Physical Solvents for Acid Gas Removal, Bryan Research & Engineering, Inc.
  9. M. J. A. Tijmensen, A. P. C. Faaij, C. N. Hamelinck, and M. R. M. Hardeveld, Biomass and Bioenergy, 23, 129 (2002).
  10. P. Weerachanchai, M. Horio, and C. Tangsathitkulchai, Bioresour. Technol., 100, 1419 (2009).
  11. H. Weiss, Gas Separation & Purification, 2, 171 (1988).
  12. A. A. Olajire, Energy, 35, 2610 (2010).
  13. H. W. Ra, S. H. Lee, S. J. Yoon, Y. C. Choi, J. H. Kim, and J. G. Lee, Korean Chem. Eng. Res., 48, 129 (2010).