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High Pressure Oxydesulphurisation of Coal—A Parametric Study

Author

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  • Moinuddin Ghauri

    (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)

  • Abrar Inayat

    (Department of Chemical Engineering, COMSATS Institute of Information Technology, Defence Road, Off Raiwind Road, 54000 Lahore, Pakistan)

  • Muhammad Tariq Bashir

    (Department of Chemical and Environmental Engineering, Universiti Putra Malaysia, Selangor 43400, Malaysia)

  • Salmiaton B. Ali

    (Department of Chemical and Environmental Engineering, Universiti Putra Malaysia, Selangor 43400, Malaysia)

  • Keith R. Cliffe

    (Department of Mechanical and Process Engineering, University of Sheffield, South Yorkshire S10 2TN, UK)

Abstract

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.

Suggested Citation

  • Moinuddin Ghauri & Abrar Inayat & Muhammad Tariq Bashir & Salmiaton B. Ali & Keith R. Cliffe, 2013. "High Pressure Oxydesulphurisation of Coal—A Parametric Study," Energies, MDPI, vol. 6(4), pages 1-14, April.
    • Handle: RePEc:gam:jeners:v:6:y:2013:i:4:p:1930-1943:d:24738
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    References listed on IDEAS

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    1. Ken K. Robinson, 2009. "Reaction Engineering of Direct Coal Liquefaction," Energies, MDPI, vol. 2(4), pages 1-31, October.
    2. Hengfu Shui & Zhenyi Cai & Chunbao Xu, 2010. "Recent Advances in Direct Coal Liquefaction," Energies, MDPI, vol. 3(2), pages 1-16, January.
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    1. Moinuddin Ghauri & Khurram Shahzad & Abrar Inayat & Zulfiqar Ali & Keith R. Cliffe, 2016. "High Pressure Oxydesulphurisation of Coal Using KMnO 4 —Effect of Coal Slurry Concentration, pH and Alkali," Energies, MDPI, vol. 9(4), pages 1-14, April.

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