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2015, Volume 9, Issue 2

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Frontiers of Chemical Science and Engineering >> 2015, Volume 9, Issue 2 doi: 10.1007/s11705-015-1514-6

Review of solvent based carbon-dioxide capture technologies

Peter Cook Centre for CCS Research, Particulate Fluids Processing Centre, Cooperative Centre for Greenhouse Gas Technologies, Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria, Australia

Accepted: 2015-06-23 Available online: 2015-07-14
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Abstract

Currently, a large proportion of global fossil fuel emissions originate from large point sources such as power generation or industrial processes. This trend is expected to continue until the year 2030 and beyond. Carbon capture and storage (CCS), a straightforward and effective carbon reduction approach, will play a significant role in reducing emissions from these sources into the future if atmospheric carbon dioxide (CO ) emissions are to be stabilized and global warming limited below a threshold of 2 °C. This review provides an update on the status of large scale integrated CCS technologies using solvent absorption for CO capture and provides an insight into the development of new solvents, including advanced amine solvents, amino acid salts, carbonate systems, aqueous ammonia, immiscible liquids and ionic liquids. These proposed new solvents aim to reduce the overall cost CO capture by improving the CO absorption rate, CO capture capacity, thereby reducing equipment size and decreasing the energy required for solvent regeneration.

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