天然气化工2012，Vol.37Issue(4)：7-10,4.
焙烧温度对Fe-Mn催化剂结构和合成低碳烯烃性能的影响
Effect of calcination temperature on structure and catalytic performance of Fe-Mn catalysts for synthesis of light olefins from syngas
汪根存 1惠海涛 2张侃 1刘平 2李文怀1
作者信息
- 1. 中国科学院山西煤炭化学研究所煤转化国家重点实验室,山西太原030001
- 2. 中国科学院研究生院,北京100039
- 折叠
摘要
Abstract
A group of co-precipitated Fe-Mn catalysts were prepared using different calcinaton temperatures and characterized by XRD, BET and H2TPR techniques, while their catalytic properties in the synthesis of light olefins via carbon monoxide hydrogenation were investigated in a fixed-bed reactor. The results showed that the increase of calcination temperature increased the crystallite size of α-Fe2O3 and decreased the specific surface area of the catalysts. Calcining the catalysts at higher temperature could improve the activity stability of the catalysts, decrease the selectivity to methane, and promote the chain propagation. The catalyst calcined at 450℃ showed the highest selectivity and good yield for light olefins.关键词
Fe-Mn催化剂/焙烧温度/低碳烯烃/一氧化碳/加氢/合成气Key words
Fe-Mn catalyst/calcination temperature/light olefins/carbon monoxide/hydrogenation/syngas分类
化学引用本文复制引用
汪根存,惠海涛,张侃,刘平,李文怀..焙烧温度对Fe-Mn催化剂结构和合成低碳烯烃性能的影响[J].天然气化工,2012,37(4):7-10,4.
