The Design Conditions and the Initial Operation Results of 1 Ton/Day Class Dry Feeding Coal-Gasification System

건식 석탄공급형 1 Ton/Day급 가스화시스템 설계조건 및 시운전결과

  • Published : 2009.08.30

Abstract

KEPRI is developing a Korean type coal-gasification system and the scale is 20 ton/day. Prior to this pilot plant, a 1 ton/day class gasification system will be used for pre-testing of several coal types. This paper introduces the configuration and design conditions of this 1 ton/day class system, presenting the gas/coal ratio, oxygen/coal ratio, cold gas efficiency, CFD analysis of gasifier, and others. The existing combustion furnace for residual oil was retrofitted as a coal gasifier and a vertical and down-flow type burner was manufactured. Ash removal is carried out through a water quencher and a scrubber following the quencher, and the sulfur is removed by adsorption in the activated carbon tower. The gas produced from the gasifier is burned at the flare stack. In this paper, the results of design conditions and initial operation conditions of I ton/day gasification system are compared together.

Keywords

References

  1. Osamu Shinada, Akira Yamada, Yoshinori Koyama : 'The development of advanced energy technologies in Japan IGCC: A key technology for the 21st century' Energy Conversion and Management 43(2002), pp. 1221-1233 https://doi.org/10.1016/S0196-8904(02)00009-2
  2. Shiro Kajitani, Nobuyuki Suzuki, Masami Ashizawa and Saburo Hara : '$CO_2$ gasification rate analysis of coal char in entrained flow coal gasifier' Fuel 85(2006), pp. 163-169 https://doi.org/10.1016/j.fuel.2005.07.024
  3. Young-Chan Choi, Tae-Jun Park, Jae-Ho Kim, Jae-Goo Lee, Jae-Chang Hong and Yong-Goo Kim : 'Experimental Studies of 1 Ton/Day Coal Slurry Feed Type Oxygen Blown, Entrained Flow Gasifier' Korea J. Chem. Eng., 18(4), 493-498(2001) https://doi.org/10.1007/BF02698296
  4. Yongseung Yun, Young Don Yoo, Seok Woo Chung: 'Selection of IGCC candidate coals by pilot-scale gasifier operation' Fuel Processing Technology 88(2007), pp. 107-116 https://doi.org/10.1016/j.fuproc.2004.08.009
  5. Yongseung Yun and Young Done Yoo : 'Perfonnance of a Pilot-Scale Gasifier for Indonesian Baiduri Coal' Korean J. Chem. Eng., 18(5), 679-685(2001) https://doi.org/10.1007/BF02706386
  6. http://www.cycle-tempo.nl
  7. Christopher Higman and Maarten van der Burgt : 'Gasification' second edition printed by Gulf Professional Publishing, p. 28
  8. J.M. Smith, H.C. Van Ness, MMAbbott : 'Introduction to Chemical Engineering Thenrodynamics', McGRAW-HILL International Edition, sixth edition, pp. 659-660
  9. FLUENT 6.3 User's Guide : p. 22-2
  10. FLUENT 6.3 User's Guide : p. 12-12
  11. FLUENT 6.3 User's Guide : p. 22-154.