碱土金属氧化物担载Fe－MnO催化剂的CO加氢反应制低碳烯烃性能  

PERFORMANCE OF IIA METAL OXIDE SUPPORTED Fe-MnO CATALYST FOR PRODUCTION OF LIGHT ALKENES SYNGAS

作　　者：徐龙伢[1] 王清遐[1] 杨力[1] 蔡光宇[1] 王开立[1] 

机构地区：[1]中国科学院大连化学物理研究所

出　　处：《燃料化学学报》1995年第2期125-130,共6页Journal of Fuel Chemistry and Technology

基　　金：国家"八.五"重点攻关课题

摘　　要：碱土金属氧化物担载Ｆｅ－ＭｎＯ催化剂可大幅度提高低碳烯烃的选择性和ＣＯ转化率，添加碱金属助剂将进一步改善其催化性能；ＭｎＯ是铁催化剂由合成气制烯烃的有效助剂：碱土金属氧化物担体能抑制乙烯发生歧化反应及丙烯加氢反应，而ＭｎＯ助剂主要抑制乙烯加氢气应，从而有利于提高合成气制低碳烯烃的选择性。The alkene selectivity of CO hydrogenation over Fe-MnO catalyst is improvedobviously by using IIA metal oxide as catalyst support.Better catalytic performance of cata-lyst Fe-MnO/MgO can be achieved with addition of IA metal as the promoter.This catalystis insensitive to temperature,but not to syngas space velocity. Further more,IIA metal ox-ide supported Fe-MnO catalyst can inhibit the secondary reactions of ethylene and hydro-genation of propylene,meanwhile MnO mainly inhibits the hydrogenation of ethylene,favor-able for the formation of light alkenes.

关 键 词：碱土金属氧化物 合成气 烯烃 催化剂 加氢反应 

分 类 号：TQ132.3[化学工程—无机化工] TQ221.2