期刊
APPLIED ORGANOMETALLIC CHEMISTRY
卷 32, 期 5, 页码 -出版社
WILEY
DOI: 10.1002/aoc.4328
关键词
Al2O3; CO2 methanation; Fe; Ni-based catalyst
In this paper, the effect of additive Fe on Ni/Al2O3 catalyst for CO2 methanation was studied. A series of bimetallic Ni-Fe catalysts with different Ni/Fe ratios were prepared by impregnation method. For comparison, monometallic Fe-based and Ni-based catalysts were also prepared by the same method. The characterization results showed that adding Fe to Ni catalyst on the premise of a low Ni loading(<= 12 wt.%) enhanced CO2 methanation performance. However, when the Ni loading reached 12 wt.%, the catalytic activity decreased with the increase of Fe content, but still higher than the corresponding Ni-based catalyst without Fe. Among them, the 12Ni3Fe catalyst exhibited the highest CO2 conversion of 84.3 % and nearly 100% CH4 selectivity at 50000 ml g(-1) h(-1) and 420 degrees C. The enhancement effect of adding Fe on CO2 methanation was attributed to the dual effect of suitable electronic environment and increased reducibility generated by Fe species.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据