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

Membrane technology is becoming more important for CO,_ 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 fo...

Full description

Saved in:
Bibliographic Details
Published in:Journal of natural gas chemistry 2012-05, Vol.21 (3), p.282-298
Main Authors: Yeo, Zee Ying, Chew, Thiam Leng, Zhu, Peng Wei, Mohamed, Abdul Rahman, Chai, Siang-Piao
Format: Article
Language:English
Subjects:
Applied sciences
Carbon dioxide
CO2 separation
Energy
Exact sciences and technology
Fuels
Gas conditioning and treatments. Desulphurization. Liquefaction
Gas industry
inorganic membrane
membrane technology
Membranes
Natural gas
Permeability
Selectivity
Separation
Surface chemistry
surface modification
二氧化碳
传统工艺
化学稳定性
天然气
无机膜
热稳定性
聚合物膜
膜分离技术
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Membrane technology is becoming more important for CO,_ 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 CO2 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 CO2 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 CO2 from natural gas, challenges of current commercial polymeric membranes and inorganic membranes for CO2 removal and membrane surface modification for improved selectivity.
ISSN:1003-9953
DOI:10.1016/S1003-9953(11)60366-6