1. State Key Laboratory of Chemical Resource Engineering, School of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
2. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi, 030001, P. R. China
3. National Energy Center for Coal to Clean Fuels, Synfuels China Co., Ltd., Huairou District, Beijing, 101400, P. R. China