1. College of Mining Engineering
2. Taiyuan University of Technology
3. Taiyuan 030024
4. China
5. State Key Laboratory of Fine Chemicals
6. Institute of Coal Chemical Engineering
7. School of Chemical Engineering
8. Dalian University of Technology
9. Dalian 116024
10. State Key Laboratory Breeding Base of Coal Science and Technology Co-founded by Shanxi Province and the Ministry of Science and Technology