Small but efficient
article
Membrane gas absorption (MGA) plays a vital role in significantly reducing the size of carbon dioxide (CO2) capture process. Using MGA, the absorber for capturing carbon dioxide from flue can be five to ten times smaller than conventional packed absorber columns, allowing the whole process to become intrinsically more stable. A membrane contractor is a piece of process equipment, which combines membranes and dedicated flow channels within a common housing. They can be used in the absorption step and the desorption in solvent processes for post-combustion capture of CO2. Membrane absorber has several advantages, including the free gas and liquid flow, which avoids common packed/tray column problems, such as flooding foaming, channeling, and entrainment. Using membrane contractors to absorb CO2 from flue gas also makes it possible to optimize the process according to thermodynamic considerations rather than operational considerations.
Topics
TNO Identifier
240925
ISSN
03020797
Source
Chemical Engineer(806), pp. 42-43.
Publisher
Institution of Chemical Engineers ICE
Collation
3 p.
Pages
42-43
Files
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