催化裂化过程中的热裂化和二次反应研究  

Research on Thermal Cracking and Secondary Reactions in Fluid Catalyticcraking Process

作　　者：曾海[1] 毛羽[1] 高金森[1] 

机构地区：[1]石油大学(北京)化工学院,北京102240

出　　处：《当代化工》2004年第6期317-320,328,共5页Contemporary Chemical Industry

摘　　要：研究了催化裂化过程中热裂化反应和催化裂化反应的特点和影响因素。结果表明 ,反应温度、剂油比和反应时间能显著地影响热裂化反应和催化裂化反应。采用缩短反应时间的方法 ,能抑制催化裂化过程中不利的热裂化反应和二次裂化反应 ,达到调整产品分布和产品组成的目的。Thermal cracking reactions lead to excessive light gas yield and lower overall product values during the present typical high temperature commercial FCC operation. Catalyst properties and operating parameters (reaction temperature, catalyst to oil ratio, contact time) have great influence on thermal and catalytic cracking reactions. The short contact time of oil and catalyst may suppress the detrimental thermal cracking reaction dramatically. A satisfactory result could be obtained through selection of proper catalyst and operating conditions (for example, the very short contact time of gas and oil).

关 键 词：催化裂化 热裂化 二次裂化 反应温度 剂油比 反应时间 

分 类 号：TQ624.41[化学工程—精细化工]