石油炼制与化工

• 催化剂 • 上一篇    下一篇

掺炼焦化蜡油多产丙烯MIP工艺专用剂CRMI-II(TJ)开发及应用

柳荣1,蒋文斌2,刘守军2   

  1. 1. 中石化股份有限公司天津分公司炼油部
    2. 石油化工科学研究院14室
  • 收稿日期:2011-01-17 修回日期:1900-01-01 出版日期:2011-08-12 发布日期:2011-08-12
  • 通讯作者: 柳荣

DEVELOPMENT AND COMMERCIAL APPLICATION OF CRMI-II (TJ) CATALYST FOR MIP TECHNOLOGY PROCESSING CGO BLENDED FEEDSTOCK

Jiang Wenbin   

  • Received:2011-01-17 Revised:1900-01-01 Online:2011-08-12 Published:2011-08-12

摘要: 针对中石化天津分公司MIP装置工况、原料油性质特点以及对产品分布和产品性质的要求,设计开发了抗碱氮多产丙烯MIP工艺专用催化剂CRMI-II(TJ)。工业应用结果表明:以中间基蜡油掺20%~30%的焦化蜡油+10%~20%的常压渣油为原料,使用CRMI-II(TJ)专用催化剂后,FCC稳定汽油烯烃含量大幅度降低,可以达到35%以下,总液收(液化气+汽油+柴油)达到87%以上,稳定汽油辛烷值RON达到92以上。与参比剂相比,CRMI-II(TJ)催化剂具有更好的焦炭选择性、抗碱氮中毒、提高汽油辛烷值和增产丙烯性能。

关键词: MIP工艺, 裂化催化剂, 焦化蜡油, 汽油料, 烯烃, 丙烯

Abstract: Based on the unit operation conditions, feedstock properties, the requirements of product slates and product properties in Tianjin Petrochemical Corporation, CRMI-II (TJ) catalyst, a catalyst specially tailored for MIP technology to process feedstock with high coker gas oil (CGO) blending, was developed. The commercial application results showed that using CRMI-II (TJ) catalyst, when processing an intermediate base feedstock blended with 20-30% CGO and 10-20% AR, the total liquid yield reached more than 87%, the obtained stabilized gasoline had an olefin content of less than 35% and RON over 92. As compared with reference catalyst (base case), CRMI-II (TJ) catalyst exhibited better coke selectivity, good basic nitrogen tolerance, enhanced gasoline octane number and higher propylene yield.

Key words: MIP process, cracking catalyst, coker gas oil, gasoline stock, olefin, propylene