Natural gas purification and liquefaction process of small-scale LNG project in skid-mounted package

CAO Wensheng; LU Xuesheng; LIN Wensheng; GU Anzhong

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Natural gas purification and liquefaction process of small-scale LNG project in skid-mounted package

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- Natural gas purification and liquefaction process of small-scale LNG project in skid-mounted package
- CIESC Journal Issue S1, Pages: 100-105(2009)
- 作者机构：
  
  1. 集美大学机械工程学院
  2. 上海交通大学制冷与低温工程研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：30 December 2009，
  
  Published：30 December 2009
- 稿件说明：
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CAO Wensheng, LU Xuesheng, LIN Wensheng, et al. Natural gas purification and liquefaction process of small-scale LNG project in skid-mounted package[J]. CIESC Journal, 2009, (S1): 100-105.
DOI：

CAO Wensheng, LU Xuesheng, LIN Wensheng, et al. Natural gas purification and liquefaction process of small-scale LNG project in skid-mounted package[J]. CIESC Journal, 2009, (S1): 100-105. DOI：

摘要

以中原油田文23气田1号集气站外输气为例，对小型LNG装置的模块化撬装进行了工艺技术研究，采用特有的模块化复合吸附工艺和SP-MRC混合制冷工艺，得到天然气净化与液化相耦合的全流程节点的温度、压力、摩尔焓、摩尔熵、摩尔流量、气相分率和气液两相组分的摩尔分数。结果表明：LNG回收率＞90%，该装置的能耗成本仅为0.379 kW·h·m-3，相当于0.19元·m-3天然气。

Abstract

In the field of natural gas liquefaction

the small-scale natural gas liquefier has attracted more and more attention at home and abroad

due to its small volume

mobile transportation

convenient start-up and shut-down

as well as skid-mounted package.In this paper

technologic design of the small-scale liquefied natural gas plant in skid-mounted package is carried through based on No.1 station outgoing gas of 23th gas field of Zhongyuan oil field.The simulative calculation of the small-scale LNG project achieves temperature

pressure

enthalpy

entropy

flow rate

component mole fractions in liquid and gas phase of every node in the whole process that using the methods of compound modularized adsorption technology and SP-MRC refrigeration.The result shows LNG recovery is more than 90% and power consumption cost is only 0.379 kW·h·m-3

which is worth 0.19 CNY·m-3.

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