Interactions of supported nickel and nickel oxide catalysts with methane and steam at high temperatures

作者: Pooya Azadi , Junichiro Otomo , Hiroyuki Hatano , Yoshito Oshima , Ramin Farnood

DOI: 10.1016/J.CES.2011.06.002

关键词:

摘要: Abstract The catalytic performance of cermets made 10% nickel or oxide supported on YSZ (yttria-stabilized zirconia) for chemical looping combustion (CLC) and steam reforming (SR) methane at 700 °C is investigated. Steam over the reduced catalyst resulted in a syngas containing more than 70% hydrogen about 15% carbon monoxide. Chemical with insufficient lattice oxygen could potentially lead to 40–65% rich gas products. Prolonged induction period (e.g. 30–80 min) reduction by has been observed presence steam. span increases increasing partial pressure. It hypothesized that delayed related retarding effect autocatalytic reactions subsequent reactions.

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