The potential for use of cellulose triacetate membranes in post combustion capture

HT Lu; S Kanehashi; CA Scholes; SE Kentish

Journal article

The potential for use of cellulose triacetate membranes in post combustion capture

HT Lu, S Kanehashi, CA Scholes, SE Kentish

International Journal of Greenhouse Gas Control | ELSEVIER SCI LTD | Published : 2016

DOI: 10.1016/j.ijggc.2016.11.002

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Abstract

Cellulose triacetate (CTA) membranes occupy much of the gas separation market in natural gas processing. With a high CO2/N2 selectivity, this material may also be prospective for post-combustion carbon capture, if the permeance can be optimised. In capture applications, the impacts of liquid water condensate of variable pH, SOx and NOx on the gas separation performance are of critical interest to ensure maximum membrane lifetime. In this work, dense CTA membranes were aged in pH solutions of 3, 7 and 13 for a total of 60 days. It was found that the plasticisation of the CTA membrane when aged in pH 3 and pH 7 solutions enhanced the permeability of CO2 and N2 by over 30% with little impact on..

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University of Melbourne Researchers

Shinji Kanehashi Author

Colin Scholes Author

Sandra Kentish Author

Hiep Thuan (Bill) Lu Author

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Grants

Awarded by Brown Coal Innovation Australia

Funding Acknowledgements

The authors would like to acknowledge the funding support for this research project from The University of Melbourne, Particulate and Fluid Processing Centre (PFPC), Brown Coal Innovation Australia (BCIA) and the Peter Cook Centre for Carbon Capture and Storage Research at the University of Melbourne. The specialist gas infrastructure was funded by the Australian Research Council (LE120100141) and by the Australian Government Education Investment fund and this support is also gratefully acknowledged.