Influence of oxygen redox property and anchoring behavior on co supported catalyst during toluene steam reforming reaction

摘要

Catalytic steam reforming is a practical way for producing hydrogen and carbon monoxide from biomass tar or brown coal which includes plenty amount of aromatic hydrocarbons. These aromatic hydrocarbons are comparatively less-reactive and liable to form coke on catalytic surface during this reaction [1], Therefore, suppressing coke formation is especially significant in steam reforming of toluene as a model compound of aromatic hydrocarbons. Many contributions were dedicated for this topic. Trimm reported secondary metal addition to Ni catalyst decreased coke formation rate on methane steam reforming [2]. Also, Rostrup-Nielsen described partial sulfur poisoning of Ni deters coke formation on Ni catalyst [3]. However, these blockages of active metal might bring on lowering catalytic activity during the reforming reaction. Coking suppression without deactivation of catalyst was desired in steam reforming of aromatic hydrocarbon.