降低催化汽油烯烃含量的工艺技术

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作者:: 杜学敏，余颖庆，郑杰，巩宇玄，慕忠奎
Du Xuemin，Yu Yingqing，Zheng Jie，Gong Yuxuan，Mu Zhongkui

作者单位:: 中国石油庆阳石化公司运行一部，甘肃庆阳 745000
The 1st Operation Department，PetroChina Qingyang Petrochemical Company，Qingyang 745000，China

关键词:: 催化裂化；催化剂；国ⅥB；汽油烯烃；辛烷值
catalytic cracking；catalyst；VI B gasoline；gasoline olefins；octane number

摘要:: 摘要：某石化公司国ⅥB汽油质量升级技术攻关，克服催化裂化装置较短反应时间（1段1.6 s/

2段 1.4 s）、2次反应少，不利于降低烯烃的工艺特点，通过加注降烯烃催化剂、辛烷值助剂及

持续操作优化组合技术的实施，催化稳定汽油烯烃体积分数下降了 4%~5%，最低降至 35%，

辛烷值（RON）稳定在90.5~90.6，公司国ⅥB汽油提前240 d出厂。

Abstract: A petrochemical company strives to make technological breakthrough on ⅥB gasoline quality upgrade, overcome the

process characteristics of disadvantage on reducing olefin with short reaction time of catalytic cracking unit (1.6s in stage 1/ 1.4s in

stage2) and fewer further reactions, implement the combination technology of filling olefin reducing catalyst, octane number

additives and continuous operation optimization to decreased the olefin volume fraction of the catalytic stabilized gasoline by 4% to

5%, the lowest to 35% and the octane number (RON) stable at 90.5 to 90.6, and realize the ⅥB gasoline left the factory 240 days in

advance.