LNG接收站再冷凝器工艺控制研究  

Study of Process Control for Recondenser in Liquefied Natural Gas Terminal

作　　者：刘庆胜[1] 周琳琳[1] 

机构地区：[1]中国石化青岛液化天然气有限责任公司,山东青岛266400

出　　处：《石油化工自动化》2014年第3期17-19,23,共4页Automation in Petro-chemical Industry

摘　　要：国内已建液化天然气(LNG)接收站采用蒸发气(BOG)再冷凝工艺回收BOG,但是再冷凝器作为BOG回收系统的核心设备,存在操作难度大、稳定性低等问题。通过对LNG接收站项目BOG回收系统的介绍,分析了再冷凝器流量、液位、压力控制系统方案,针对接收站操作过程中对再冷凝器造成的干扰问题,提出了解决办法。Liquefied natural gas （LNG） terminals have been built in China using boil of gas （BOG） recondensation process to recycle BOG,but recondenser as the core device of the BOG recovery system,has the problems such as difficult to operate,low stability and other issues.BOG recovery system of LNG terminal is introduced first.And the flow,level and pressure control system of the recondenser are analysed.Finally solutions to the interference of the recondenser during the operation of the terminal are analysed.

关 键 词：LNG接收站 蒸发气 再冷凝器 控制 

分 类 号：TE977[石油与天然气工程—石油机械设备]