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Issue 6, 2010
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Continuous gas-phase desulfurisation using supported ionic liquid phase (SILP) materials

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Abstract

Supported ionic liquid phase (SILP) materials have been developed for a continuous gas cleaning process. The technology is exemplified for the desulfurisation of a model gas stream consisting of 500 ppmwt n-butyl mercaptan in n-heptane vapour to levels of mercaptan below 5 ppmwt. By varying the ionic liquid structure, acidity and loading, [C12MIM]Cl/SnCl2 (XSnCl2 = 0.50) on alumina in an ionic liquid loading of 20 vol% of the support's pore volume was identified as a particularly suitable gas sorption system. Breakthrough experiments demonstrate desulfurisation performance of up to 130 h time-on-stream, and the suitability of the system for loading/unloading cycles in a pressure and temperature swing operation mode.

Graphical abstract: Continuous gas-phase desulfurisation using supported ionic liquid phase (SILP) materials

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Publication details

The article was received on 06 Apr 2010, accepted on 23 Apr 2010 and first published on 21 May 2010


Article type: Paper
DOI: 10.1039/C004883F
Citation: Green Chem., 2010,12, 979-984
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    Continuous gas-phase desulfurisation using supported ionic liquid phase (SILP) materials

    F. Kohler, D. Roth, E. Kuhlmann, P. Wasserscheid and M. Haumann, Green Chem., 2010, 12, 979
    DOI: 10.1039/C004883F

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