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Energies 2013, 6(4), 1930-1943;

High Pressure Oxydesulphurisation of Coal—A Parametric Study

Department of Chemical Engineering, COMSATS Institute of Information Technology, Defence Road, Off Raiwind Road, 54000 Lahore, Pakistan
Department of Mechanical and Process Engineering, University of Sheffield, South Yorkshire S10 2TN, UK
Department of Chemical and Environmental Engineering, Universiti Putra Malaysia, Selangor 43400, Malaysia
Author to whom correspondence should be addressed.
Received: 11 December 2012 / Revised: 5 March 2013 / Accepted: 6 March 2013 / Published: 3 April 2013
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The current study is focused on controlling sulphur emissions by pre-treating coal to remove sulphur prior to combustion using the oxydesulphurisation technique. Three British coals were chosen for the study. Working with these coals gave a better insight to the oxydesulphurisation reactions for pyritic and organic sulphur. Effect of air and oxygen pressure in a fixed time interval on sulphur removal was studied by series of experimental runs at various temperatures. Heating value recoveries were significant. Increase in oxygen content is reported as a measure of carbon loss. The coal samples were analyzed according to British standard methods. Experimental results demonstrate that the sulphur removal was enhanced with the increase in air pressure, particularly up to 100 bars, with only a small decrease in calorific value at a particular temperature. Increasing temperature was witnessed to be more important in sulphur removal than increasing pressure. View Full-Text
Keywords: oxydesulphurisation; coal; pyritic sulphur; organic sulphur oxydesulphurisation; coal; pyritic sulphur; organic sulphur

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Ghauri, M.; Inayat, A.; Bashir, M.T.; Ali, S.B.; Cliffe, K.R. High Pressure Oxydesulphurisation of Coal—A Parametric Study. Energies 2013, 6, 1930-1943.

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