减黏汽油中氯的来源及控制措施  

Sources of chlorine in visbreaker gasoline and control measures

作　　者：相养冬[1] 姚斌[1] 王月江[1] 王磊[1] 

机构地区：[1]中国石油天然气股份有限公司辽河石化分公司,辽宁省盘锦市124021

出　　处：《炼油技术与工程》2009年第6期1-4,共4页Petroleum Refinery Engineering

摘　　要：对中国石油天然气股份有限公司辽河石化分公司减黏汽油中氯的来源、存在形态及对加氢改质装置的危害进行了分析。结果表明,减黏汽油氯含量高是造成加氢改质装置换热器胺盐结晶的主要原因。通过裂解减黏闪蒸塔顶油和将减黏闪蒸塔顶油从减黏汽油中分离等两种方法,均可降低减黏汽油的氯含量,使其符合加氢改质原料的要求。目前主要是采用将减黏闪蒸塔顶油从减黏汽油中分离的方法来降低氯含量,以减轻对加氢改质装置造成的不良影响。The source and forms of chlorides in visbreaker gasoline and its hazards to hydrogenation unit in Liaohe Petrochemical Company were analyzed. The results show that visbreaker gasoline is the main culprit for amine salt crystallization in the heat exchangers of hydro-upgrading unit. Either cracking visbreaking flash- er overhead oil or separating it from visbreaker gasoline can reduce the level of chlorine in visbreaker gasoline to meet the feedstock specifications for hydrogenation units. In present unit operation, separation of visbreak- ing flasher overhead oil from visbreaker gasoline is applied to reduce chlorine content and mitigate the adverse impact on hydro-upgrading unit.

关 键 词：减黏汽油 超稠油 有机氯 裂解 

分 类 号：TE624.2[石油与天然气工程—油气加工工程]