文献类型：期刊文献

英文题名：Ni-Al2O3 catalysts prepared by solution combustion method for syngas methanation

作者：Zhao, Anmin[1]; Ying, Weiyong[1]; Zhang, Haitao[1]; Ma, Hongfang[1]; Fang, Dingye[1]

机构：[1] State Key Laboratory of Chemical Engineering, Engineering Research Center of Large Scale Reactor Engineering and Technology, East China University of Science and Technology, Shanghai 200237, China

年份：2012

卷号：17

起止页码：34

外文期刊名：Catalysis Communications

收录：EI(收录号：20115114629510)

语种：英文

外文关键词：Hydrogenation - Synthesis gas - Alumina - Aluminum oxide - Catalyst activity - Combustion - Nickel - Particle size

摘要：Ni-Al2O3 catalysts with varied Ni contents from 10 to 50 wt.% were prepared by solution combustion method for syngas methanation, and characterized by N2 adsorption-desorption, XRD, H2-TPR, SEM and TEM. The results show that the catalytic activity for syngas methanation over the Ni-Al2O3 catalysts is sensitive to Ni particle size and a maximum production rate of methane per unit mass of nickel can be achieved on Ni crystals around 41.8 nm. Moreover, Ni-Al2O3 catalysts with Ni loading above 20 wt.% show good high temperature stability, which is due to Ni particles scattered and spatially isolated by Al 2O3. ? 2011 Elsevier B.V. All rights reserved.