Ni-MOx-Al2O3 (M = Mg, Cr, Ce) catalysts prepared by Pechini technique for low temperature steam reforming of light hydrocarbons into methane-rich gas

作者：Uskov S I; Potemkin D I; Snytnikov P V; Belyaev V D; Bulavchenko O A; Simonov P A; Sobyanin V A

来源：Materials Letters, 2018, 221: 18-21.

DOI：10.1016/j.matlet.2018.03.010

• Ni-alumina catalyst
• Associated petroleum gas pre-reforming
• Low temperature steam reforming
• Propane pre-reforming
• Nanoparticles
• Interfaces

30 wt.% NiO - 20 wt.% MOx-Al2O3 (M = Mg, Cr, Ce) catalysts with highly disordered structure were prepared by Pechini technique. Reduced catalysts were tested in low temperature steam reforming of model propane-methane mixture into methane-rich gas. The catalysts were compared with industrial samples and exhibited appropriate activity which increased in the following order: Industrial CH4 reforming catalyst < Ni-CeO2-Al2O3 approximate to Ni-Cr2O3-Al2O3 approximate to Ni-Al2O3 < Ni-MgO-Al2O3 approximate to Industrial CO and CO2 methanation catalyst. Ni-MgO-Al2O3 catalyst with lower Ni content and higher calcination and reduction temperatures showed activity close to that of industrial methanation catalyst. The effect was attributed to Ni-MgO interaction which resulted in higher Ni dispersion.

• 出版日期2018-6-15