1. School of Chemistry and Chemical Engineering Queen's University Belfast Belfast UK
2. Chemistry Department Faculty of Science South Valley University Qena Egypt
3. South West College Cookstown UK
4. School of Mechanical and Aerospace Engineering Queen's University Belfast Belfast UK
5. Department of Petroleum and Chemical Engineering College of Engineering Sultan Qaboos University Muscat Oman
6. Chemical Engineering Department College of Engineering King Saud University Riyadh Saudi Arabia
7. The Bryden Centre at Letterkenny Institute of Technology Letterkenny Ireland
8. State Key Laboratory of Coal Combustion Huazhong University of Science and Technology Wuhan China