Optimization of Operating Conditions of NGE-MR Natural Gas Liquefaction Process

doi:10.7652/xjtuxb201402019

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Optimization of Operating Conditions of NGE-MR Natural Gas Liquefaction Process

更新时间：2025-07-09

- Optimization of Operating Conditions of NGE-MR Natural Gas Liquefaction Process
- Vol. 48, Issue 2, Pages: 111-117(2014)
- 作者机构：
  
  西安交通大学热流科学与工程教育部重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201402019
  CLC： TU996
- Online First：10 February 2014，
  
  Published：2014
- 稿件说明：
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Optimization of Operating Conditions of NGE-MR Natural Gas Liquefaction Process[J]. 2014, 48(2): 111-117.
DOI：

Optimization of Operating Conditions of NGE-MR Natural Gas Liquefaction Process[J]. 2014, 48(2): 111-117. DOI： 10.7652/xjtuxb201402019.

摘要

为获得液化流程最优性能

确定液化流程能耗水平

探究将其应用于城市天然气调压站调峰型液化天然气装置的可行性

对天然气膨胀预冷混合制冷剂(NGE-MR)天然气液化流程的操作条件进行了优化。建立了NGE-MR液化流程模拟及优化模型

分析了混合制冷剂组成、混合制冷剂循环高压压力等主要操作条件对流程性能的影响

在此基础上以比功耗最低为优化目标

采用定压比优化方法

对NGE-MR液化流程的操作条件进行了优化。结果表明:3种压比(10、9、8)下NGE-MR天然气液化流程的最优混合制冷剂组成基本相同

各组分摩尔分数分别为2%(N

)、32%(CH

)、60%(C

)、6%(C

)

最优混合制冷剂组成与压比相关性不大; NGE-MR液化流程的最优比功耗随压比的降低而逐渐降低

但幅度很小

基本维持在0.225～0.230 kW·h/kg

较C3-MR及级联式天然气液化流程分别降低23.9%和34.4%。NGE-MR液化流程节能优势明显

适用于城市天然气调压站的调峰型LNG装置

可高效节能地生产LNG并用于城市天然气调峰。

Abstract

The operating conditions of natural gas expansion pre-cooling

mixed refrigerant(NGE-MR)natural gas liquefaction process were optimized

and the optimum performance and the energy consumption level of the liquefaction process were obtained to assess the feasibility of the application of the liquefaction process in peak-shaving LNG plants in urban natural gas regulation stations. The simulation and optimization model of the NGE-MR natural gas liquefaction process which considers the specific power and uses the method of constant pressure ratio optimization was established to analyze the inf

luence of the operating conditions on the process performance. The results show that the optimum mixed refrigerant compositions are not significantly related to the pressure ratios(10

and 8)and the optimum mole fractions of N

and C

are 2%

32%

60% and 6%

respectively. The optimum specific powers of the NGE-MR liquefaction process decrease slightly with the decrease in pressure ratios

in the range of 0.225-0.230 kW·h/kg. The NGE-MR liquefaction process with great superiority in energy saving is a promising technology selection for peak shaving LNG plants in urban natural gas regulator stations.

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references

顾安中, 鲁雪生, 金国强, 等. 液化天然气技术手册[M]. 北京: 机械工业出版社, 2010: 1-3.

任永平, 刘福录, 谢培军, 等. LNG调峰装置工艺技术及对比研究[J]. 低温技术, 2011, 39(9): 14-21.

REN Yongping, LIU Fulu, XIE Peijun, et al. Technology comparison and study of LNG peak shaving plant[J]. Cryogenics, 2011, 39(9): 14-21.

李克锦, 顾金明. LNG在苏州城市管网供气调峰中的应用[J]. 天然气工业, 2009, 29(5): 115-117.

LI Kejin, GU Jinming. Application of LNG in peak-shaving of city gas pipeline network[J]. Natural Gas Industry, 2009, 29(5): 115-117.

LIN Wensheng, ZHANG Na, GU Anzhong. LNG(liquefied natural gas): a necessary part in China's future energy infrastructure[J]. Energy, 2010, 35: 4383-4391.

VENKATARATHNAM G. Cryogenic mixed refrigerant processes[M]. New York, USA: Springer, 2008: 149-153.

王勤. 混合工质节流制冷机的理论与实验研究[D]. 杭州: 浙江大学, 2002: 10-15.

石玉美, 汪荣顺, 顾安中. 流程参数对C3/MR天然气液化流程性能的影响: 上[J]. 天然气工业, 2004, 24(2): 88-90.

SHI Yumei, WANG Rongshun, GU Anzhong. Influence of parameters on C3/MRC process performance of natural gas liquefaction: 1[J]. Natural Gas Industry, 2004, 24(2): 88-90.

石玉美, 汪荣顺, 顾安中. 流程参数对C3/MR天然气液化流程性能的影响: 下[J]. 天然气工业, 2004, 24(3): 111-114.

SHI Yumei, WANG Rongshun, GU Anzhong. Influence of parameters on C3/MRC process performance of natural gas liquefaction: 2[J]. Natural Gas Industry, 2004, 24(3): 111-114.

赵敏, 厉彦忠. 丙烷预冷混合制冷剂液化流程中原料气与制冷剂匹配研究[J]. 西安交通大学学报, 2010, 44(2): 108-112.

ZHAO Min, LI Yanzhong. Analysis for selecting mixed refrigerant composition based on raw natural gas in propane pre-cooled mixed refrigerant liquefaction process[J]. Journal of Xi'an Jiaotong University, 2010, 44(2): 108-112.

LEMMON E W, HUBER M L, MCLINDEN M O. NIST reference fluid thermodynamic and transport properties: REFPROP, NIST standard reference database 23[DB]. Version 9.0.Boulder, USA: National Institute of Standards and Technology, 2010.

TIMMERHAUS K E, REED R P. Fifty years of progress: fifty-years' development of cryogenic liquefaction processes[M]. New York, USA: Springer, 2007.

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