Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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The Study on the Catalytic Performance and Characterization of La0.9Sr0.1Cr0.7B0.3O3±δ (B=Mn, Ni, Fe, Ru) for High Temperature Water-gas Shift Reaction with Simuated Coal-derived Syngas

모사된 석탄가스화 합성가스를 이용한 La0.9Sr0.1Cr0.7B0.3O3±δ (B=Mn, Ni, Fe, Ru)의 수성가스전이반응 활성 및 특성에 관한 연구

  • Lee, Seul-Gi (Department of Mineral Resources and Energy Engineering, Chonbuk National University) ;
  • Kwak, Jaehoom (Department of Energy Storage & Conversion Engineering, Chonbuk National University) ;
  • Sohn, Jung Min (Department of Mineral Resources and Energy Engineering, Chonbuk National University)
  • 이슬기 (전북대학교 자원에너지공학과) ;
  • 곽재훈 (전북대학교 에너지저장변환공학과) ;
  • 손정민 (전북대학교 자원에너지공학과)
  • Received : 2013.11.20
  • Accepted : 2013.12.31
  • Published : 2013.12.31
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Abstract

In this study, $La_{0.9}Sr_{0.1}Cr_{0.7}M_{0.3}O_{3{\pm}{\delta}}$ (M=Mn, Ru, Fe, Ni) were prepared by sol-gel method and water gas shift reaction with simulated coal-derived syngas between $400{\sim}650^{\circ}C$ was conducted to evaluate the catalytic activity of prepared catalysts. Physico-chemical properties were characterized by XRD, BET, SEM-EDS and TPR. The formation of perovskite crystallite, $LaCrO_3$ was confirmed and the highest surface area was measured with $La_{0.9}Sr_{0.1}Cr_{0.7}Mn_{0.3}O_{3{\pm}{\delta}}$. Equilibrium conversion of CO above $550^{\circ}C$ was achieved except $La_{0.9}Sr_{0.1}Cr_{0.7}Fe_{0.3}O_{3{\pm}{\delta}}$. and methanation reaction was carried out as side reaction of water gas shift reaction with $La_{0.9}Sr_{0.1}Cr_{0.7}Ni_{0.3}O_{3{\pm}{\delta}}$ and $La_{0.9}Sr_{0.1}Cr_{0.7}Ru_{0.3}O_{3{\pm}{\delta}}$. Conclusively, $La_{0.9}Sr_{0.1}Cr_{0.7}M_n{0.3}O_{3{\pm}{\delta}}$ was the most suitable catalyst of water gas shift reaction above $500^{\circ}C$ for CO conversion and hydrogen production.

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References

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