High Pressure Oxydesulphurisation of Coal Using KMnO 4 —Effect of Coal Slurry Concentration, pH and Alkali

Moinuddin Ghauri, Khurram Shahzad, Abrar Inayat, Zulfiqar Ali and Keith R. Cliffe
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Moinuddin Ghauri: Department of Chemical Engineering, COMSATS Institute of Information Technology, Defence Road, Off Raiwind Road, Lahore 54000, Pakistan
Khurram Shahzad: Centre for Coal Technology, University of the Punjab, Lahore 54000, Pakistan
Abrar Inayat: Department of Sustainable & Renewable Energy Engineering, University of Sharjah, Sharjah 27272, UAE
Zulfiqar Ali: Department of Mining Engineering, University of Engineering and Technology, Lahore 54000, Pakistan
Keith R. Cliffe: Department of Mechanical and Process Engineering, University of Sheffield, Sheffield S10 2TN, UK

Energies, 2016, vol. 9, issue 4, 1-14

Abstract: A high pressure oxydesulphurisation technique was investigated to reduce sulphur content, especially at ambient temperature. Prince of Wales coal was chosen for this study. The focus of the study was on the reduction of both pyritic and organic sulphur. The effects of pressure, coal slurry concentration, pH and KOH concentration in a fixed time interval on sulphur removal were studied with a series of experimental runs at ambient temperature. Heating value recovery was found to be increased with decreased pressure and with increased coal slurry concentration. It was found that sulphur removal was enhanced with an increase in pressure, with a more significant effect on the organic sulphur. With increase in the coal slurry concentration reduction, sulphur was found to be decreased.

Keywords: oxydesulphurisation; coal; pyritic sulphur; organic sulphur; KMnO 4 (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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