混合冷剂液化工艺在LNG工厂的应用  

Application of double Loop Mixed Refrigerant Liquefaction Process in LNG Plant

作　　者：苏成果 SU Cheng-guo(China National Petroleum Marketing Corporation Shaanxi Branch,Xi’an 710016,China)

机构地区：[1]中国石油天然气销售陕西分公司,陕西西安710016

出　　处：《化工管理》2021年第24期93-94,共2页Chemical Engineering Management

摘　　要：液化操作是天然气的核心转换技术之一。近年来常用的天然气液化主要应用膨胀制冷、阶式制冷以及混合制冷的工艺。它具有性能高、功耗低、投资少、操作方便等特点。随着液化天然气需求的激增,混合制冷剂制冷技术在液化天然气生产中的应用越来越广泛。文章在混合冷剂节流膨胀制冷原理的基础上,以LNG工厂为例提出双循环混合制冷利用板翅式换热器进行高效的换热从而达到天然气液化的目的。The core is liquefied natural gas liquefaction process,currently widely used in the refrigeration process industry can be divided into cascade refrigeration processes,mixed refrigerant process and expansion refrigeration technology.LNG plant is used in this paper,which developed the two-cycle mix cooling.Purified natural gas,the use of mixed refrigerant throttling expansion refrigeration principle,through efficient heat exchange plate-fin heat exchanger,so as to achieve the purpose of liquefied natural gas.

关 键 词：天然气液化 双循环混合制冷 节流膨胀 

分 类 号：U473.24[机械工程—车辆工程]