1. Department of Chemical and Process Engineering, University of Surrey, Guildford GU2 7XH, Surrey, United Kingdom
2. Department of Chemical Engineering, Federal University of Technology, PMB 65 Minna, Nigeria
3. Department of Petroleum Engineering, University of Zakho, P.O. Box 12, Zakho City, Northern Iraq
4. Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom