摘要
通过高温焙烧降低Ａｌ２Ｏ３的酸度，可减弱催化剂表面乙烯的副反应，研制出具有高强度、好性能的合成气转化为低碳烯烃的催化剂。研究表明，Ａｌ２Ｏ３的酸性导致催化剂表面乙烯发生深度二次反应，致使ＣＯ加氢生成饱和烃及烯烃的选择性降低。
K-Fe-MnO/Silicalite-2 catalyst having Al2O3 as a binder is developed,exhibiting better strength and desirable behavior for production of light alkenes from synthesis gas. By calcining the catalyst support at a high temperature,the acidity of the catalyst can be decreased and side reactions of ethylene on the catalyst surface prohibited. It is found that the acidity of Al2O3 would bring about secondary reactions of ethylene over the catalyst and CO hydrogenation to saturated hydrocarbons,thus leading to a decrease of the selectivity to light olefins.
出处
《天然气化工—C1化学与化工》
CSCD
北大核心
1995年第3期25-29,共5页
Natural Gas Chemical Industry
基金
国家"八.五"重点科技攻关课题
关键词
合成气
烯烃
催化剂
分子筛
粘结剂
铁
氧化锰
synthesis gas
light alkene
Fe-MnO catalyst
silicalite-2zeolite
Al_2O_3
binder
