1. University
of Malaya Centre
for Ionic Liquids (UMCiL), University of Malaya, 50603 Kuala Lumpur, Malaysia
2. Department of Chemical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
3. Petroleum and Chemical Engineering
Department, Sultan Qaboos University, Muscat
123, Oman
4. Chemical Engineering
Department, King Saud University, Riyadh
11421, Saudi Arabia