›› 2017, Vol. 48 ›› Issue (6): 30-34.

• 基础研究 • 上一篇    下一篇

S Zorb工艺过程反应规律分析

毛安国   

  1. 中国石化石油化工科学研究院
  • 收稿日期:2016-11-02 修回日期:2017-02-28 出版日期:2017-06-12 发布日期:2017-05-24
  • 通讯作者: 毛安国 E-mail:maoanguo.ripp@sinopec.com

STUDY ON REACTION RULES OF COMPOUNDS IN S Zorb PROCESS

  • Received:2016-11-02 Revised:2017-02-28 Online:2017-06-12 Published:2017-05-24

摘要: 分析了S Zorb工艺过程中烃类化合物、硫化物和氮化物的反应规律,认为S Zorb工艺技术在脱硫反应的同时,烃类化合物以烯烃饱和反应为主,并伴有少量裂化反应,同时还有一定的脱氮效果。对烯烃质量分数为22.83%、硫质量分数为325 μg/g的催化裂化汽油,在生产硫质量分数为6.3 μg/g精制汽油时,烯烃的饱和率为15.16%,烃类的轻质化率为1.19%,辛烷值损失为0.8;催化裂化汽油中的硫醇和硫醚类硫化物最易脱除,通常其脱除率为100%,C2噻吩和C3+噻吩是精制汽油中常见的残存硫化物。催化裂化汽油中氮化物以苯胺类化合物为主,其脱除率为32.4%。

关键词: 催化裂化汽油, 吸附, 脱硫 , 辛烷值

Abstract: The reaction rules of hydrocarbons, sulfides and nitrides in S Zorb process were studied. It is shown that some of the olefins are hydrogenated, small amount of hydrocarbon cracking reactions and denitrification reactions occur during desulfurization reactions in S Zorb process. When the FCC gasoline with olefin of 22.83% and sulfur of 325 μg/g is used to produce clean gasoline with sulfur content less than 10 μg/g by S Zorb process, the olefin saturation rate is 15.16%, the hydrocarbon cracking rate is 1.19%, and RON loss is less than 0.8. The removal rate for both mercaptan and thioether is close to 100%. 2-methyl thiophene and 3-methyl thiophene are the main residual sulfur compounds in refined gasoline. The aniline compounds in FCC gasoline are the primary nitrides. Its removal rate is 32.4% for this feed in S Zorb process.

Key words: FCC gasoline, adsorption, desulfurization, octane number