费托法
催化作用
选择性
沸石
合成气
化学
汽油
化学工程
二氧化碳
有机化学
工程类
作者
Shunshun Geng,Feng Jiang,Yuebing Xu,Xiaohao Liu
出处
期刊:Chemcatchem
[Wiley]
日期:2016-03-08
卷期号:8 (7): 1303-1307
被引量:78
标识
DOI:10.1002/cctc.201600058
摘要
Abstract Iron‐based Fischer–Tropsch (FT) synthesis in combination with hydroisomerization in the presence of zeolites for the synthesis of isoparaffins from CO 2 /H 2 was conducted in a fixed‐bed reactor. Relative to supported iron catalysts, the precipitated one efficiently converted intermediate CO into hydrocarbons by supplying a high density of FT active sites on the catalyst surface. Removing water by interstage cooling and promoting the CO conversion step in the FT synthesis were effective approaches in achieving a high CO 2 conversion, because of an increase in the driving force to the reaction equilibrium. Particle mixing of 92.6 Fe7.4 K with either 0.5 Pd/β or HZSM‐5 zeolite effectively hydroisomerized the resulting FT hydrocarbons into gasoline‐range isoparaffins. Particularly, HZSM‐5 displayed a higher isoparaffin selectivity at approximately 70 %, which resulted from easier hydrocracking and hydroisomerization of the olefinic FT primary products.
科研通智能强力驱动
Strongly Powered by AbleSci AI