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High Pressure Oxydesulphurisation of Coal—Effect of Oxidizing Agent, Solvent, Shear and Agitator Configuration

Author

Listed:
  • 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)

  • Waqar Ali Khan

    (Department of Chemical Engineering, NFC Institute of Engineering and Fertilizer Research, Faisalabad 38000, Pakistan)

  • Javaid Akhtar

    (Centre for Coal Technology, University of the Punjab, Lahore 54000, Pakistan)

  • Keith R. Cliffe

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

Abstract

The ambient temperature high pressure oxydesulphurisation technique was investigated to reduce the sulphur content. Prince of Wales coal was chosen for this study. The focus of the study was to investigate the reduction of both pyritic and organic sulphur while changing the KMnO 4 /Coal ratio, agitation speed, agitator configuration, and shear. The effect of different concentrations of acetone as a solvent and effect of particle size on the sulphur removal was also studied by a series of experimental runs at ambient temperature. Heating value recovery was found to be increased with the decreased KMnO 4 /Coal ratio and with decreased acetone concentration. It was found that sulphur removal was enhanced with the increase in shear using a turbine impeller. The effect of particle size was more significant on the pyritic sulphur removal as compared to the organic sulphur removal while heating value recovery was found to increase with decreased desulphurization tome for both, under atmospheric and high pressure.

Suggested Citation

  • Moinuddin Ghauri & Khurram Shahzad & Abrar Inayat & Zulfiqar Ali & Waqar Ali Khan & Javaid Akhtar & Keith R. Cliffe, 2016. "High Pressure Oxydesulphurisation of Coal—Effect of Oxidizing Agent, Solvent, Shear and Agitator Configuration," Energies, MDPI, vol. 9(7), pages 1-15, June.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:7:p:505-:d:73084
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    References listed on IDEAS

    as
    1. Ken K. Robinson, 2009. "Reaction Engineering of Direct Coal Liquefaction," Energies, MDPI, vol. 2(4), pages 1-31, October.
    2. 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.
    3. Chen, Wenying & Xu, Ruina, 2010. "Clean coal technology development in China," Energy Policy, Elsevier, vol. 38(5), pages 2123-2130, May.
    4. Hengfu Shui & Zhenyi Cai & Chunbao Xu, 2010. "Recent Advances in Direct Coal Liquefaction," Energies, MDPI, vol. 3(2), pages 1-16, January.
    Full references (including those not matched with items on IDEAS)

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