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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Performance of Ru-based Preferential Oxidation Catalyst and Natural Gas Fuel Processing System for 1 kW Class PEMFCs System

Ru계 촉매의 CO 선택적 산화 반응 및 1 kW급 천연가스 연료처리 시스템의 성능 연구

  • Seo, Yu-Taek (New Energy Research Dept., Korea Institute of Energy Research) ;
  • Seo, Dong-Joo (New Energy Research Dept., Korea Institute of Energy Research) ;
  • Seo, Young-Seog (New Energy Research Dept., Korea Institute of Energy Research) ;
  • Roh, Hyun-Seog (New Energy Research Dept., Korea Institute of Energy Research) ;
  • Jeong, Jin-Hyeok (Dept. of Chemical Engineering, Kyongpook National University) ;
  • Yoon, Wang-Lai (New Energy Research Dept., Korea Institute of Energy Research)
  • 서유택 (한국에너지기술연구원 신에너지연구부) ;
  • 서동주 (한국에너지기술연구원 신에너지연구부) ;
  • 서용석 (한국에너지기술연구원 신에너지연구부) ;
  • 노현석 (한국에너지기술연구원 신에너지연구부) ;
  • 정진혁 (경북대학교 화학공학과) ;
  • 윤왕래 (한국에너지기술연구원 신에너지연구부)
  • Published : 2006.09.15
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Abstract

KIER has been developing a Ru-based preferential oxidation catalysts and a novel fuel processing system to provide hydrogen rich gas to residential PEMFCs system. The catalytic activity of Ru-based catalysts was investigated at different Ru loading amount and different support structure. The obtained result indicated that 2 wt% loaded Ru-based catalyst supported on ${\alpha}-Al_2O_3$ showed high activity in low temperature range and suppressed the methanation reaction. The developed prototype fuel processor showed thermal efficiency of 78% as a HHV basis with methane conversion of 92%. CO concentration below 10 ppm in the produced gas is achieved with separate preferential oxidation unit under the condition of $[O_2]/[CO]=2.0$. The partial load operation have been carried out to test the performance of fuel processor from 40% to 80% load, showing stable methane conversion and CO concentration below 10 ppm. The durability test for the daily start-stop and 8 h operation procedure is under investigation and shows no deterioration of its performance after 50 start-stop cycles. In addition to the system design and development.

Keywords

References

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