催化裂解装置回炼苯乙烯焦油  

Recycle styrene tar with deep catalytic cracking unit

作　　者：牛毓 王仕文 郑杰 范开辉 张诚 NIU Yu;WANG Shi-wen;ZHENG Jie;FAN Kai-hui;ZHANG Cheng(Research Institute of Refining and Petrochemicals,CNOOC,Qingdao 266500,China;Ningbo Daxie Petrochemical Co Ltd,CNOOC,Ningbo 315812,China)

机构地区：[1]中海石油炼油化工科学研究院,山东青岛266500 [2]中海石油宁波大榭石化有限公司,浙江宁波315812

出　　处：《石化技术与应用》2023年第2期93-98,共6页Petrochemical Technology & Application

基　　金：中海石油炼化有限责任公司资助项目(项目编号:LHTISA 20210039)。

摘　　要：为利用催化裂解装置回炼苯乙烯焦油,对苯乙烯焦油进行了组成分析、热反应行为评价及催化裂解性能测试,并对催化裂解装置回炼苯乙烯焦油的可行性进行了安全性和经济性分析。结果表明:苯乙烯焦油的组分多为芳环带侧链或芳环间有烷基链相连的结构;苯乙烯焦油由流化催化裂解中试装置提升管底部进料回炼时,大部分转化为小于280℃的组分,少部分转变为焦炭,转化率可达68%;苯乙烯焦油催化裂解转化的轻油组分中99%以上为芳烃;苯乙烯焦油、催化油浆以及二者混合物发生裂化反应的温度为380~390℃,回炼时,只要物料进入提升管时温度低于380℃就是安全的,不会发生高温管路结焦问题。In order to utilize the deep catalytic cracking unit to recycle styrene tar,experiments such as composition analysis,thermal reaction behavior evaluation,and catalytic cracking performance tests of styrene tar were carried out.Feasibility analysis of the safety and economic of the deep catalytic cracking unit for styrene tar recycling was carried out.The results showed that the components of styrene tar were mostly aromatic rings with side chains or alkyl chains connected between aromatic rings.When the styrene tar was fed from the bottom of the riser of the fluidized catalytic cracking pilot plant,most of it could be converted into components less than 280℃,and a small part of it could be converted into coke.The conversion rate could reach 68%,and more than 99%of the light oil components converted from styrene tar were aromatic hydrocarbons.The cracking reaction temperature of styrene tar,catalytic slurry oil and the mixture of them was 380-390℃.During recycling,it was safe as long as the temperature of the material was lower than 380℃when it was fed into the riser,and there would be no coking problem in the high-temperature pipeline.

关 键 词：苯乙烯焦油 催化裂解 资源化利用 回炼 裂解性能 热反应行为 

分 类 号：TQ524[化学工程—煤化学工程] TE624.41[石油与天然气工程—油气加工工程]