重油催化裂化沉降器结焦历程分析  

Analysis of coking mechanisms in residue fluid catalytic cracking disengagers

作　　者：蓝兴英[1] 高金森[1] 徐春明[1] 

机构地区：[1]中国石油大学重质油国家重点实验室,北京102249

出　　处：《现代化工》2007年第4期46-48,共3页Modern Chemical Industry

基　　金：国家自然科学基金资助项目(20406013);中国石化股份有限公司资助项目(105045)

摘　　要：沉降器结焦需具备2个条件:存在易结焦物质,存在结焦的环境和条件。在重油催化裂化沉降器中结焦物质包括油气组分、油液滴和催化剂颗粒,结焦的环境和条件指沉降器内的物料流场、温度场和浓度分布情况。分析了沉降器中气相组分、油液滴和催化剂颗粒等结焦物质的结焦历程,提出为了定量掌握结焦历程中各个过程的细节有待于进一步进行研究的问题。The two factors of coking in residue fluid catalytic cracking（RFCC） disengager are the substances prone for coking and the causing coking environment. The substances easy to coke including oil-gas in gas phase, the heavy fractions of oil-gas in liquid phase and the catalyst particles. The environment factors causing coking include flow field, temperature field and concentration distribution in the disengager. The coking mechanisms of oil-gas in gas phase, oil droplets and catalyst particles are analyzed.In order to understand quantitatively details of the cocking process, the problems for deep research in the future are pointed out also.

关 键 词：重油催化裂化 沉降器 结焦 机理 

分 类 号：TQ016[化学工程] TE624.41[石油与天然气工程—油气加工工程]