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

Moinuddin Ghauri 1,*, Khurram Shahzad 2,*, Abrar Inayat 3, Zulfiqar Ali 4, Waqar Ali Khan 5, Javaid Akhtar 2 and Keith R. Cliffe 6 1 Department of Chemical Engineering, COMSATS Institute of Information Technology, Defence Road, Off Raiwind Road, Lahore 54000, Pakistan 2 Centre for Coal Technology, University of the Punjab, Lahore 54000, Pakistan; [email protected] 3 Department of Sustainable & Renewable Energy Engineering, University of Sharjah, Sharjah 27272, UAE; [email protected] 4 Department of Mining Engineering, University of Engineering and Technology, Lahore 54000, Pakistan; [email protected] 5 Department of Chemical Engineering, NFC Institute of Engineering and Fertilizer Research, Faisalabad 38000, Pakistan, [email protected] 6 Department of Mechanical and Process Engineering, University of Sheffield, Sheffield S10 2TN, UK; [email protected] * Correspondence: [email protected] (M.G.); [email protected] (K.S.); Tel.: +92-42-111-001-007 (M.G.); Fax: +92-42-9920-3100 (M.G.)