CO2 Permeation with Pebax-based Membranes for Global Warming Reduction

CO2 Permeation with Pebax -based Membranes for Global Warming Reduction 

Major CO2 emissions sources are generated by fossil fuel combustion within the power and industrial sectors. Storage of the greenhouse gas in empty gas fields and aquifers could be a solution. To store CO2 underground it should be captured first. The most currently used post-combustion technology is absorption columns by means of an organic hquid. The flue gases are scrubbed in several reactors in which the CO2 is bound by 

Membrane Gas Separation Edited by Yuri Yampolskii and Benny Freeman 2010 John Wiley Sons, Ltd 

Most of the research work has been focused on polymer membrane materials involving a solution-diffusion mechanism. The performances of such materials generally fall within the trade-off relationship between permeability and selectivity suggested by Robeson [5], with an upper bound limit for the membrane performances. 

Kawakami et al. [6] in a study on PEG loaded in porous regenerated cellulose concluded that the acid-base reaction between the acidic CO2 and the electron-rich ether oxygen atoms of the PEG molecules is probably responsible for the enhanced solubility of CO2 in PEG. 

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