吉林常压渣油在提升管内催化裂解的反应规律  

Catalytic Cracking of Jilin Atmospheric Residue in Riser

作　　者：陈小博[1] 沙有鑫[1] 李春义[1] 杨朝合[1] 山红红[1] 

机构地区：[1]中国石油大学(华东)化学化工学院重质油国家重点实验室,山东东营257061

出　　处：《石油化工》2007年第8期808-811,共4页Petrochemical Technology

基　　金：中国石油天然气股份有限公司重点资助项目(040401-02-04)

摘　　要：在XTL-5小型提升管催化裂化实验装置上,以吉林常压渣油为原料,进行了催化裂解多产丙烯的实验,考察了反应温度、停留时间、催化剂类型对丙烯收率的影响。实验结果表明,提高反应温度、适宜的停留时间和采用多产丙LTB-2烯催化剂均可提高丙烯的收率,其中适宜的反应条件是反应温度530℃、停留时间1.4s左右。采用LTB-2催化剂,在第一段提升管反应温度530℃、m(LTB-2催化剂)∶m(常压渣油)(剂油比)为6.70、停留时间1.36s,第二段提升管反应温度530℃、剂油比7.21、停留时间1.8s左右的操作条件下,进行两段提升管催化裂解多产丙烯(TMP)工艺的模拟实验。模拟实验结果表明,TMP工艺可使丙烯收率达到22.67%,同时兼顾汽油、柴油的生产。Catalytic cracking of Jilin atmospheric residue aimed at producing maximum propylene was carried out in XTL - 5 mini - riser. Effects of reaction temperature, residence time and catalyst type on propylene yield were investigated. Propylene yield can increase by raising reaction temperature, choosing proper residence time and using LTB - 2 catalyst. The appropriate reaction conditions are temperature 530 ℃ and residence time about 1.4 s. Simulation experiment of catalytic cracking was conducted in a two -stage riser on LTB -2 catalyst. Under optimal conditions： in first stage riser： reaction temperature 530 ℃, ratio of catalyst to oil 6. 70 and residence time 1.36 s, and in second stage riser： reaction temperature 530 ℃, ratio of catalyst to oil 7. 21 and residence time 1.8 s, total propylene yield can achieve 22. 67%. At the same time, gasoline and diesel oil can also be produced.

关 键 词：提升管 催化裂解 丙烯 两段提升管 常压渣油 

分 类 号：TE624.41[石油与天然气工程—油气加工工程]