1. Key Laboratory of Coalbed Methane Resources and Reservoir Formation Process, Ministry of Education, China University of Mining and Technology, Xuzhou, Jiangsu 221008, People’s Republic of China
2. School of Resources and Geosciences, China University of Mining and Technology, Xuzhou, Jiangsu 221116, People’s Republic of China
3. School of Chemical Engineering, The University of Queensland, St. Lucia, Queensland 4072, Australia