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

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)

  • Keith R. Cliffe

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

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.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:4:p:289-:d:68385
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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 & 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.
    3. 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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    Cited by:

    1. Moinuddin Ghauri & Khurram Shahzad & M. Shahzad Khurram & Mujtaba Hussain Jaffery & Najaf Ali & Waqar Ali Khan & Keith R. Cliffe, 2017. "Development of a Temperature Programmed Identification Technique to Characterize the Organic Sulphur Functional Groups in Coal," Energies, MDPI, vol. 10(6), pages 1-17, June.
    2. 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.
    3. Laifu Zhao & Qian Du & Jianmin Gao & Shaohua Wu, 2019. "Contribution of Minerals in Different Occurrence Forms to PM 10 Emissions during the Combustion of Pulverized Zhundong Coal," Energies, MDPI, vol. 12(19), pages 1-14, September.

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