A Novel Process for Natural Gas Liquids Recovery from Oil Field Associated Gas with Liquefied Natural Gas Cryogenic Energy Utilization

作     者：边海军 徐文东 李秀喜 钱宇 BIAN Haijun;XU Wendong;LI Xiuxi;QIAN Yu

作者机构：School of Chemistry and Chemical Engineeringthe State Key Lab for Pulp and Paper EngineeringSouth China University of Technology 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2011年第19卷第3期

页      面：452-461页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：Supported by the National Natural Science Foundation of China(20876056,20536020) the PhD Program Fund from Ministry of Education of China(20100172110016) 

主　　题：liquefied natural gas utilization of cryogenic energy recovery of natural gas liquids exergy analysis 

摘      要：A novel process to recovery natural gas liquids from oil field associated gas with liquefied natural gas (LNG)cryogenic energy utilization is *** to the current electric refrigeration process,the proposed process uses the cryogenic energy of LNG and saves 62.6%of *** proposed process recovers ethane, liquid petroleum gas(propane and butane)and heavier hydrocarbons,with total recovery rate of natural gas liquids up to 96.8%.In this paper,exergy analysis and the energy utilization diagram method(EUD)are used to assess the new process and identify the key operation units with large exergy *** results show that exergy efficiency of the new process is 44.3%.Compared to the electric refrigeration process,exergy efficiency of the new process is improved by 16%.The proposed process has been applied and implemented in a conceptual design scheme of the cryogenic energy utilization for a 300 million tons/yr LNG receiving terminal in a northern Chinese harbor.