금속매체 순환식 수소생산 시스템의 성능예측 및 공정선정

Performance Estimation and Process Selection for Chemical-Looping Hydrogen Generation System

  • 류호정 (한국에너지기술연구원 청정에너지연구센터) ;
  • 진경태 (한국에너지기술연구원 청정에너지연구센터)
  • Ryu, Ho-Jung (Clean Energy Research Center, Korea Institute of Energy Research) ;
  • Jin, Gyoung-Tae (Clean Energy Research Center, Korea Institute of Energy Research)
  • 발행 : 2005.09.15

초록

To find a suitable metal component in oxygen carrier particles for chemical-looping hydrogen generation system(CLH), oxygen transfer capacities of metal components were compared and Ni has been selected as the best metal component. The proper operating conditions to achieve high hydrogen generation rate have been investigated based on the chemical-equilibrium composition analysis for water splitting reactor. Moreover, suitable compositions of syngas from gasifier of heavy residue to achieve high energy efficiency have been investigated by calculation of heat of reaction. Based on the selected operating conditions, the best configuration of two interconnected fluidized beds system for the chemical-looping hydrogen generator has been investigated as well.

키워드

참고문헌

  1. R. Kothari, D. Buddhi, and R. L. Sawhney : 'Sources and Technology for Hydrogen Production: a Review', Int. J. Global Energy Issues, Vol. 21, No. 1/2, 2004, pp. 154-178
  2. H. J. Ryu, D. H. Bae, K. H. Han, S. Y. Lee, G. T. Jin, and J. H. Choi : 'Oxidation and Reduction Characteristics of Oxygen Carrier Particles and Reaction Kinetics by Unreacted Core Model', KJChE, Vol. 18, No.6, 2001, pp. 831-837
  3. H. J. Ryu, N. Y. Lim, D. H. Bae, and G. T. Jin : 'Carbon Deposition Characteristics and Regenerative Ability of Oxygen Carrier Particle for Chemical-Looping Combustion', KJChE, Vol. 20, No.1, 2003, pp. 157-162
  4. H. J. Ryu, G. T. Jin, N. Y. Lim, and S. Y. Bae : 'Reaction Characteristics of Five Kinds of Oxygen Carrier Particles for Chemical-Looping Combustor', Trans. of the Korea Hydrogen Society, Vol. 14, No.1, 2003, pp. 24-34
  5. H. J. Ryu, D. H. Bae, and G. T. Jin : 'Effect of Temperature on Reduction Reactivity of Oxygen Carrier Particle for Chemical -Looping Combustor in a Fixed Bed Reactor', KJChE, Vol. 20, No.5, 2003, pp. 960-966
  6. H. J. Ryu, D. H. Bae, S. H. Jo, and G. T. Jin : 'Oxidation and Reduction of Oxygen Carrier Particle for Chemical-Looping Combustor in a Fluidized Bed Reactor', The Ninth Asian Conference on Fluidized-Bed and Three-Phase Reactors, 2004, pp. 109-114
  7. X. Li, J. R. Grace, A. P. Watkinson, C. J. Lim, and A. Ergudenler : 'Equilibrium Modeling of Gasification: a Free Energy Minimization Approach and Its Application to a Circulating Fluidized Bed Coal Gasifier', Fuel, Vol. 80, 2001, pp. 195-207 https://doi.org/10.1016/S0016-2361(00)00074-0
  8. J. R. Grace, X. Bi, and C. J. Lim : 'Equilibrium Modelling of Catalytic Steam Reforming of Methane in Membrane Reactors with Oxygen Addition', Catalysis Today, Vol. 64, 2001, pp. 141-149 https://doi.org/10.1016/S0920-5861(00)00519-8
  9. H. J. Ryu and G. T. Jin : 'Criteria for Selection of Metal Component in Oxygen Carrier Particles for Chemical-Looping Combustor', Korean Chem. Eng. Res., Vol. 42, No.5, 2004, pp. 588-597
  10. H. J. Ryu and G. T. Jin : 'Conceptual Design of 50kW thermal Chemical-Looping Combustor and Analysis of Variables', ., Vol. 12, No.4, 2003, pp. 289-301