重油两段提升管催化裂解多产丙烯  

Laboratory study of enhancing propylene yield by two-stage riser catalytic pyrolysis technology with heavy oil

作　　者：杨朝合[1] 耿亚平 李春义[1] 高永地[1,2] 

机构地区：[1]中国石油大学(华东)重质油国家重点实验室,山东东营257061 [2]中国石油克拉玛依石化分公司,新疆克拉玛依834003

出　　处：《石化技术与应用》2008年第6期526-531,共6页Petrochemical Technology & Application

基　　金：中国石油天然气股份有限公司资助项目(项目编号:050202-07)

摘　　要：在小型提升管实验装置上，以LBO-16催化剂和LTB-2多产丙烯助剂为混合催化剂（二者质量比为3／7），模拟焦化蜡油（CGO）两段提升管催化裂解多产丙烯的生产工艺。结果表明，在反应温度为510～530℃，两段总停留时间为2．66s，剂油比（催化N／原料油，质量比）为7～9的条件下，催化裂化原料掺炼质量分数为20％的CGO，经两段反应后，重油转化率为84．00％，丙烯收率为18．05％，产物中干气与焦炭质量分数为10．81％；生成的汽油烯烃含量低、芳烃含量高，可作为高辛烷值汽油调和组分。Two - stage riser catalytic pyrolysis for maximizing propylene yield was carried out in a small scale riser test unit. The results showed that taking Xinjiang heavy oil blended with coke gas oil of mass fraction of 20% as feedstock, using LBO - 16 and LTB- 2 as mixed catalyst,under the condition of reaction temperature 510 -530℃ ,total residence time of two - stage riser 2.66 s, mass ratio of catalyst to oil 7 - 9, the conversion of heavy oil was 84.00% , the yield of propylene was 18.05% , but the total yield of dry gas and coke was 10.81% ,the produced gasoline with low - olefin and high - aromatics content could be used as the component of high octane number gasoline.

关 键 词：两段提升管 催化裂解 焦化蜡油 丙烯 

分 类 号：TE626.25[石油与天然气工程—油气加工工程]