Performance optimizations on a new small scale auto-cascade natural gas liquefier using a rectifying column

WANG Hui; CHEN Fusheng; SONG Qi; REN Bin; WANG Qin; CHEN Guangming

doi:10.11949/j.issn.0438-1157.20150710

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Performance optimizations on a new small scale auto-cascade natural gas liquefier using a rectifying column

更新时间：2025-12-10

- Performance optimizations on a new small scale auto-cascade natural gas liquefier using a rectifying column
- CIESC Journal Issue S2, Pages: 231-237(2015)
- 作者机构：
  
  1. 浙江大学制冷与低温研究所, 能源清洁利用国家重点实验室,浙江,杭州,310027
  2. 上海利正卫星应用技术有限公司,上海,200240
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150710
  CLC： E646
- Online First：31 August 2015，
  
  Published：31 August 2015
- 稿件说明：
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WANG Hui, CHEN Fusheng, SONG Qi, et al. Performance optimizations on a new small scale auto-cascade natural gas liquefier using a rectifying column[J]. CIESC Journal, 2015, (S2): 231-237.
DOI：

WANG Hui, CHEN Fusheng, SONG Qi, et al. Performance optimizations on a new small scale auto-cascade natural gas liquefier using a rectifying column[J]. CIESC Journal, 2015, (S2): 231-237. DOI： 10.11949/j.issn.0438-1157.20150710.

摘要

本文提出了一种新型精馏型自复叠小型天然气液化系统

并采用HYSYS®软件对其进行了性能模拟计算和优化分析

详细分析了组分配比和系统压力位对系统性能的影响规律。研究结果表明:对于不同组分配比的混合制冷剂

当吸气压力上升时

天然气液化量的变化趋势则可分为向下凹和变化不大两种类型

其对应的系统单位液化功的变化趋势可分为向上凸和单调减少两种类型

压缩机功率和排气温度则基本上呈单调降低趋势

并以系统单位液化功为目标优化

得到了最佳配比和最佳工况。

Abstract

In this study

a new small scale auto-cascade natural gas liquefier using a rectifying column was presented

and the system performance was simulated and optimized by HYSYS®.The influence of the concentrations of the refrigerant mixture and system pressures on the system performance was analyzed in detail.The results showed that

for different concentrations of refrigerant mixtures

when the inlet pressure arose

the variation trends of the quantity of LNG were divided into two types

the upward convex type and a little change type

and the corresponding variation trends of the energy consumption for the liquefaction of per unit LNG presented the downward concave type and a straight reduction type

while the compressor power and discharge temperature both decreased.Finally

the optimal concentration of the refrigerant mixtures and working condition were obtained aimed at the energy consumption for the liquefaction of per unit LNG.

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Related Author

REN Bin

CHEN Fusheng

WANG Hui

SONG Qi

WANG Qin

XU Xiangguo

CHEN Guangming

TANG Songzhen

Related Institution

Institute of Refrigeration and Cryogenics, State Key Laboratory of Clean Energy Utilization, Zhejiang University

School of Mechanical and Power Engineering, Zhengzhou University

BK21 FOUR ERICA-ACE Center, Hanyang University

School of Mechanical and Storage and Transportation Engineering, China University of Petroleum

Hangzhou Narada Power Technology Company Limited

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