一种基于浮式LNG的预处理和液化流程模拟

doi:10.11949/j.issn.0438-1157.20150747

化工学报 ›› 2015, Vol. 66 ›› Issue (S2): 371-378.DOI: 10.11949/j.issn.0438-1157.20150747

一种基于浮式LNG的预处理和液化流程模拟

曹文胜^1,4,5, 黄星¹, Iqbal M. MUJTABA², 鲁雪生³

1. 集美大学机械与能源工程学院, 福建厦门 361021;
2. School of Engineering and Informatics, University of Bradford, West Yorkshire, Bradford BD7 1DP, UK;
3. 上海交通大学制冷与低温工程研究所, 上海 200240;
4. 福建省能源清洁利用与开发重点实验室, 福建厦门 361021;
5. 福建省清洁燃烧与能源高效利用工程技术研究中心, 福建厦门 361021

收稿日期:2015-05-29 修回日期:2015-06-12 出版日期:2015-08-31 发布日期:2015-08-31
通讯作者: 曹文胜
基金资助:
黄慧贞集美大学学科建设基金(ZC2012015);福建省教育厅A类科技项目(JA12191);国家安全监管总局科技项目(201310180001)。

Simulation of purification and liquefaction based on FLNG

CAO Wensheng^1,4,5, HUANG Xing¹, Iqbal M. MUJTABA², LU Xuesheng³

1. College of Mechanical and Energy Engineering, Jimei University, Xiamen 361021, Fujian, China;
2. School of Engineering and Informatics, University of Bradford, West Yorkshire, Bradford BD7 1DP, UK;
3. Institute of Refrigeration and Cryogenics, Shanghai Jiaotong University, Shanghai 200240, China;
4. Fujian Province Key Laboratory of Energy Cleaning Utilization and Development, Xiamen 361021, Fujian, China;
5. Cleaning Combustion and Energy Utilization Research Center of Fujian Province, Xiamen 361021, Fujian, China

Received:2015-05-29 Revised:2015-06-12 Online:2015-08-31 Published:2015-08-31
Supported by:
supported by the Huang Huizhen Discipline Construction Foundation of Jimei University(ZC2012015),the Technology Project of Fujian Provincial Department of Education(JA12191)and the Technology Project of State Administration of Work Safety(201310180001).

摘要/Abstract

摘要：

天然气的预处理和液化是海上天然气利用前的两个关键环节。选取变压吸附分离法(PSA)作为浮式LNG预处理流程的工艺方法,选择新型CO₂预冷空气膨胀液化流程作为浮式LNG天然气液化的工艺方法,并对以上预处理和液化流程进行了模拟计算与分析。结果表明,采用双层吸附剂变压吸附(PSA)预处理流程能耗低,全气体运行避免了液体吸收剂随波浪晃动的缺点,可以满足海上天然气预处理的要求;CO₂预冷空气膨胀液化流程在预冷剂及制冷剂循环过程中,没有液体的产生,安全性高;以上预处理和液化流程适应于海上晃动的LNG平台。

关键词: 浮式LNG, 预处理, 液化流程, 模拟

Abstract:

Pretreatment and liquefaction of natural gas are two key links of offshore LNG-FPSO.The pressure swing adsorption(PSA)as natural gas purification and CO₂ pre-cooling air expander cycle as natural gas liquefaction are selected and simulated and analyzed.The results show that,the energy consumption of the double layers adsorbents PSA is low,and the disadvantage of liquid absorbent with the wave shaking can be avoided by the process operation of the gas; and there is no liquid produced in the precooling and refrigeration processes of the CO₂ pre-cooling air expander cycle,indicating its high safety; the above purification and liquefaction processes are suitable for offshore LNG platforms.

Key words: FLNG, purification, liquefaction process, simulation

中图分类号:

TE644

曹文胜, 黄星, Iqbal M. MUJTABA, 鲁雪生. 一种基于浮式LNG的预处理和液化流程模拟[J]. 化工学报, 2015, 66(S2): 371-378.

CAO Wensheng, HUANG Xing, Iqbal M. MUJTABA, LU Xuesheng. Simulation of purification and liquefaction based on FLNG[J]. CIESC Journal, 2015, 66(S2): 371-378.

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一种基于浮式LNG的预处理和液化流程模拟

Simulation of purification and liquefaction based on FLNG

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