几种新型分子筛对催化裂化汽油的改质性能研究  

Upgrading performance of some new types of zeolite catalyst for catalytic cracking gasoline

作　　者：曹庚振[1] 庞新梅[1] 张莉[1] 杨一青[1,2] 王宝杰[1] 马燕青[1] 

机构地区：[1]中国石油兰州化工研究中心 [2]西北师范大学化学化工学院,甘肃兰州730070

出　　处：《石化技术与应用》2008年第2期131-135,共5页Petrochemical Technology & Application

摘　　要：在固定床微反装置上,对比考察了几种新型分子筛材料对催化裂化汽油的催化改质反应性能及β沸石在不同反应温度下的催化反应规律。结果表明,β沸石具有较好的异构化和芳构化能力,并随反应温度的升高,其裂解和芳构化能力逐渐增强,异构烃产率逐渐降低;工业低硅ZSM-5型分子筛的裂化活性较强;催化裂化汽油经改质后其烯烃含量均有所降低,且辛烷值基本不变。The catalytic activities of some types of new zeolite for catalytic cracking gasoline were investigated in a fixed-bed microreactor,and the catalytic reaction rules of β zeolite were studied at different reaction temperature.The results showed that the β zeolite had better activities of isomerization and aromatization,and the cracking and aromatizing activities increased with the reaction temperature increasing,but the yield of isomerized olefins decreased.Low-silica ZSM-5 showed good catalytic cracking act...

关 键 词：催化裂化 分子筛 汽油 改质 烯烃 

分 类 号：TE624.41[石油与天然气工程—油气加工工程]