摘要
某海上油田陆岸终端轻烃回收系统未凝气闪蒸罐气相出口管壳式换热器采用淡水冷却,由于天然气处理量增加,管壳式换热器制冷效果不能达到设计要求的影响,未凝气闪蒸罐运行压力一直偏高,导致轻烃和重烃分离不完全,部分重烃在系统中重复处理,部分液化气进入常压轻油储罐而损失。文章利用天然气在该工艺流程段多余势能,将膨胀制冷技术集成至管壳式换热却器,天然气经过膨胀后降温和水冷降温,提高了轻烃和重烃的分离效果,降低了未凝气闪蒸罐运行压力,避免了液化气的浪费,减少了淡水的消耗,提高了该系统的运行效率,取得了较好的经济效益与社会效益。
In an offshore oil terminal onshore hydrocarbon recovery system, the tubular heat exchanger in the outlet of incondensable gas flash tank uses fresh water cooling, as natural gas processing increased, tubular heat exchanger cooling effect of the impact can not meet the design requirements, operating pressure of incondensable gas flash tank is high, resulting in separation of light hydrocarbons and heavy hydrocarbons is Incompletely, some heavy hydrocarbon in the system repeats in the process, some liquefied petroleum gas losses for entering the light oil tank. This paper, by using natural gas excess potential energy, the expansion refrigeration technology integration to the tubular heat exchanger device, after expansion cooling and water cooling, improve the separation effect of light hydrocarbon and heavy hydrocarbon, reduce the operation pressure of incondensate gas flash tank, avoid the waste of liquefied petroleum gas, reduce the freshwater consumption, improve the operation efficiency of the system, achieved good economic and social benefits.
出处
《广东化工》
CAS
2014年第1期141-142,共2页
Guangdong Chemical Industry
关键词
未凝气闪蒸罐
管壳式换热器
液化气
轻油
膨胀制冷
incondensate gas flash tank
tubular heat exchangers； Liqnefied petroleum gas； Light oih expansion cooling
