Current status and development of membranes for CO2/CH4 separation: A review
2014-10-16
org.kosen.entty.User@34e0085d
한상훈(glacier007)
분야
화공
개최일
January 2013
신청자
한상훈(glacier007)
개최장소
URL
첨부파일
행사&학회소개
Abstract
Abbreviations
Keywords
1. Introduction
2. Dense polymeric membranes
3. Facilitated transport membranes
4. Microporous hydrophobic membranes used in gas?liquid membrane contactor
5. Inorganic membranes
6. Mixed matrix membranes
7. Effect of process operational factors on membrane selection
8. Membrane comparisons and future directions
9. Conclusions
Acknowledgments
References
Abbreviations
Keywords
1. Introduction
2. Dense polymeric membranes
3. Facilitated transport membranes
4. Microporous hydrophobic membranes used in gas?liquid membrane contactor
5. Inorganic membranes
6. Mixed matrix membranes
7. Effect of process operational factors on membrane selection
8. Membrane comparisons and future directions
9. Conclusions
Acknowledgments
References
보고서작성신청
Carbon dioxide (CO2) is a greenhouse gas found primarily as a main combustion product of fossil fuel as well as a component in natural gas, biogas and landfill gas. The interest to remove CO2 from those gas streams to obtain fuel with enhanced energy content and prevent corrosion problems in the gas transportation system, in addition to CO2 implications to the climate change, has driven the development of CO2 separation process technology. One type of technology which has experienced substantial growth, breakthroughs and advances during past decades is membrane-based technology. The attractive features offered by this technology include high energy efficiency, simplicity in design and construction of membrane modules and environmental compatibility. The objective of this review is to overview the different types of membranes available for use including their working principles, current status and development which form the primary determinants of separation performance and efficiency. The emphasis is toward CO2/CH4 separation, considering its substantial and direct relevance to the gas industry. To this end, discussion is made to cover polymeric gas permeation membranes; CO2-selective facilitated transport membranes, hollow fiber gas?liquid membrane contactors, inorganic membranes and mixed matrix membranes.
The market for CO2 separation is currently dominated by polymeric membranes due to their relatively low manufacturing cost and processing ability into flat sheet and hollow fiber configurations as well as well-documented research studies. While there have been immensely successful membrane preparation and development techniques with consequential remarkable performance for each type of membrane. Each type of membrane brings associated advantages and drawbacks related to the characteristic transport mechanism for specific application conditions. Inorganic membranes, for example, are very suitable for high temperature CO2 separation in excess of 400 °C while all other membranes can be applied at lower temperatures. The recent emergence of mixed matrix membranes has allowed the innovative approach to combine the advantages offered by inorganic and polymeric materials.
The market for CO2 separation is currently dominated by polymeric membranes due to their relatively low manufacturing cost and processing ability into flat sheet and hollow fiber configurations as well as well-documented research studies. While there have been immensely successful membrane preparation and development techniques with consequential remarkable performance for each type of membrane. Each type of membrane brings associated advantages and drawbacks related to the characteristic transport mechanism for specific application conditions. Inorganic membranes, for example, are very suitable for high temperature CO2 separation in excess of 400 °C while all other membranes can be applied at lower temperatures. The recent emergence of mixed matrix membranes has allowed the innovative approach to combine the advantages offered by inorganic and polymeric materials.