1. Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology, Xuzhou, Jiangsu 221116, China
2. Key Laboratory of Coal Clean Conversion & Chemical Engineering Process of Xinjiang Uygur Autonomous Region, College of Chemical Engineering, Xinjiang University, Urumqi 830046, China
3. Jiangsu Province Engineering Research Center of Fine Utilization of Carbon Resources, China University of Mining & Technology, Xuzhou, Jiangsu 221116, China