Mechanistic studies of methane partial oxidation to syngas over LiNiLaOx/Al2O3 catalyst
Data(s) |
01/03/1999
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Resumo |
Temperature-programmed reduction (TPR) characterization of the LiNiLaOx/Al2O3 catalyst before or after partial oxidation of methane (POM) reaction and a series of O-2, CH4 and CH4/O-2 pulse reaction experiments over the catalyst under different pretreatments were performed. It was found that CH4 dissociatively adsorbs on active center nickel producing H-2 and surface carbon, C(a). The surface carbon reacts with surface lattice oxygen or surface adsorbed oxygen to produce CO. Because the activation barrier for the reaction C(a)+ O(a) =CO(a) is the highest among all the elementary reactions, the rate-determining step of the POM may be the reaction C(a) + O(a) =CO(a). |
Identificador | |
Idioma(s) |
英语 |
Fonte |
缪清* 熊国兴 刘盛林 盛世善 张玉红.Mechanistic studies of methane partial oxidation to syngas over LiNiLaOx/Al2O3 catalyst,Reaction Kinetics and Catalysis letters; 66(2)(1999)273-279,1999,():- |
Palavras-Chave | #methane partial oxidation #pulse reaction #reaction mechanism #LiNiLaOx/Al2O3 catalyst |
Tipo |
期刊论文 |