The impact of ruthenium, lanthanum and activation conditions on the methanation activity of alumina-supported cobalt catalysts
作者： Esther Kok , Jason Scott , Noel Cant , David Trimm
DOI: 10.1016/J.CATTOD.2010.11.011
关键词: Heterogeneous catalysis 、 Methanation 、 Transition metal 、 Catalyst support 、 Catalysis 、 Ruthenium 、 Cobalt 、 Chemistry 、 Carbon monoxide 、 Inorganic chemistry
摘要: Abstract The influence of catalyst activation conditions and the presence promoters (La, Ru) on performance γ-alumina-supported Co catalysts for methanation reaction has been investigated. Physicochemical properties, crystallite size extent Co3O4 reduction to metallic both monometallic promoted were evaluated. Combined La Ru addition produced greatest activity improvement converting carbon monoxide (CO) hydrogen (H2) methane. Reduction used activate also found have a direct activity. Maintaining at 400 °C 10 h during enhanced activity, as well increasing H2 concentration in reducing gas stream. Characterisation reduced demonstrated that Co-oxide metal was key improved
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