两种LNG装置BOG再液化方案的回收经济性对比  

Comparison Analysis Between Two BOG Re-liquefied Methods of LNG Storage and Transportation Equipment

作　　者：王坤[1,2] 巨永林[1] 罗永欣 姚春荣 

机构地区：[1]上海交通大学制冷与低温工程研究所,上海200030 [2]南通中集罐式储运设备制造有限公司,江苏南通226003

出　　处：《低温与特气》2017年第3期9-12,共4页Low Temperature and Specialty Gases

摘　　要：首先简要介绍了目前LNG储运装置BOG产生的现状,以及目前回收BOG再液化的一些方法。接着分别针对低温制冷机和液氮作为冷源的两种方法的回收运营成本(前者比后者低约40%)进行分析比较,最终得出用低温制冷机作为冷源再液化BOG成为LNG是经济的(液化1 kg的BOG仅需花费1.35元)。This paper briefly introduces the present situation of BOG from LNG storage and transportation device,and some recycling and re-liquefaction methods of BOG. Then,the cryocooler and liquid nitrogen as two re-liquefied methods are compared with operation cost（ the former method is about 40% lower than the latter method）,Finally we can conclude that liquefied method by cryocooler is more economy（ cost for liquefying BOG of 1kg is only about 1. 35 yuan）.

关 键 词：LNG BOG 回收 再液化 

分 类 号：TE89[石油与天然气工程—油气储运工程]