[1] China Univ Min & Technol, Sch Resources & Earth Sci, Xuzhou 221008, Jiangsu, Peoples R China
[2] Xinjiang Univ, Sch Geol & Min Engn, Urumqi 830047, Peoples R China
[3] Minist Educ, Key Lab CBM Resources & Dynam Accumulat Proc CUMT, Urumqi 830047, Peoples R China
[4] Jiangsu Bur Coal Geol, Nanjing 210046, Jiangsu, Peoples R China
[5] Univ Queensland, Sch Chem Engn, Brisbane, Qld 4072, Australia