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Issue 10, 2011
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Could the energy cost of using supercritical fluids be mitigated by using CO2 from carbon capture and storage (CCS)?

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Abstract

This article explores the possibility of utilising supercritical CO2 obtained from carbon capture and storage (CCS) as a solvent and examines the hydrogenation of isophorone to 3,3,5-trimethylcyclohexanone using supercritical CO2 with added N2, CO or H2O to emulate the contaminants expected in CO2 from CCS. None of the impurities appear to cause insuperable problems in the hydrogenation of isophorone when present at concentrations likely to be found in CO2 from CCS. N2 introduces modest changes in phase behaviour at some pressures, while CO and H2O reduce the activity of the catalyst. However, the activity can be largely regained by increasing the reaction temperature.

Graphical abstract: Could the energy cost of using supercritical fluids be mitigated by using CO2 from carbon capture and storage (CCS)?

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Publication details

The article was received on 04 May 2011, accepted on 28 Jul 2011 and first published on 01 Sep 2011


Article type: Paper
DOI: 10.1039/C1GC15503B
Citation: Green Chem., 2011,13, 2727-2733
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    Could the energy cost of using supercritical fluids be mitigated by using CO2 from carbon capture and storage (CCS)?

    J. G. Stevens, P. Gómez, R. A. Bourne, T. C. Drage, M. W. George and M. Poliakoff, Green Chem., 2011, 13, 2727
    DOI: 10.1039/C1GC15503B

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