催化裂化降低汽油硫含量工艺参数研究  

Research on process parameters for reducing sulfur content in gasoline by catalytic cracking process

作　　者：柳召永 王艳飞 杨朝合[1] 张忠东 张海涛 王智峰 

机构地区：[1]中国石油大学(华东)化学工程学院,山东青岛266555 [2]中国石油兰州化工研究中心,甘肃兰州730060

出　　处：《石化技术与应用》2014年第3期217-220,共4页Petrochemical Technology & Application

基　　金：中国石油天然气股份有限公司科研管理部资助项目(项目编号:05-01-01-13)

摘　　要：在中型提升管催化裂化装置中,以含硫质量分数为0.610％的减压渣油与减压蜡油混合物（二者质量比为3∶7）为原料,LDO-70 S为催化剂,在反应温度500℃,反应时间为2 s的条件下,可制备含硫质量分数为0.027％的催化裂化汽油.结果表明,随着原料含硫质量分数的提高,汽油含硫质量分数提高,其中后者是前者的8％ ～ 9％.随着反应温度的升高,干气、液化气和焦炭质量分数增加,汽油、柴油、重油和汽油含硫质量分数降低.随着催化剂/原料油（质量比）的增加,干气、液化气、焦炭和汽油中含硫质量分数提高,汽油、柴油和重油质量分数降低.Catalytic cracking gasoline containing the mass fraction of sulfur 0. 027% was prepared using the mixture of vacuum residuum and vacuum gas oil with mass ratio 3： 7containing mass fraction of sulfur 0.610% as raw material, LDO - 70 S as catalyst at reaction temperature 500 ℃ , reaction time 2 s in a middle - sized riser catalytic cracking unit. The results showed that the mass fraction of sulfur in gasoline increased with increasing sulfur in feed oil, and the former was （8% -9% ） of the latter. Withthe increase of reaction temperature, the mass frac- tion of dry gas, liquitied petroteum gas （LPG） , and coke increased, but that of gasoline, diesel, heavy oil and sulfur content in gasoline decreased. With the increase of catalyst to oil mass ratio, the mass frac- tion of dry gas, LPG,coke and sulfur content in gas- oline increased, but that of gasoline, diesel, and heavy oil decreased.

关 键 词：催化裂化 汽油 脱硫 硫含量 工艺参数 

分 类 号：TE624.41[石油与天然气工程—油气加工工程]