Conventional processes and membrane technology for carbon dioxide removal from natural gas:A review

查看全文 作　　者：Zee Ying [1]Yeo;Thiam Leng [2]Chew;Abdul Rahman [3]Mohamed;Siang-Piao [1]Chai

机构地区：[1]Chemical Engineering Discipline,School of Engineering,Monash University,46150 Bandar Sunway,Selangor,Malaysia;[2]Faculty of Engineering and Green Technology(FEGT),Perak Campus,Universiti Tunku Abdul Rahman,Jalan Universiti,Bandar Barat,31900 Kampar,Perak,Malaysia;[3]School of Chemical Engineering,Engineering Campus,Universiti Sains Malaysia,Seri Ampangan,14300 Nibong Tebal,Penang,Malaysia

出　　处：《Journal of Natural Gas Chemistry》索引2012年第21卷第3期,共17页

基　　金：supported by the Ministry of Higher Education Malaysia through Long Term Research Grant Scheme (A/C Number 2110226-113-00) 摘　　要：Membrane technology is becoming more important for CO 2 separation from natural gas in the new era due to its process simplicity,relative ease of operation and control,compact,and easy to scale up as compared with conventional processes.Conventional processes such as absorption and adsorption for CO 2 separation from natural gas are generally more energy demanding and costly for both operation and maintenance.Polymeric membranes are the current commercial membranes used for CO 2 separation from natural gas.However,polymeric membranes possess drawbacks such as low permeability and selectivity,plasticization at high temperatures,as well as insufficient thermal and chemical stability.The shortcomings of commercial polymeric membranes have motivated researchers to opt for other alternatives,especially inorganic membranes due to their higher thermal stability,good chemical resistance to solvents,high mechanical strength and long lifetime.Surface modifications can be utilized in inorganic membranes to further enhance the selectivity,permeability or catalytic activities of the membrane.This paper is to provide a comprehensive review on gas separation,comparing membrane technology with other conventional methods of recovering CO 2 from natural gas,challenges of current commercial polymeric membranes and inorganic membranes for CO 2 removal and membrane surface modification for improved selectivity. 关键词：膜分离技术二氧化碳传统工艺天然气聚合物膜热稳定性化学稳定性无机膜

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Conventional processes and membrane technology for carbon dioxide removal from natural gas:A review

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