1. College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, PR China
2. Coal Water Slurry Gasification and Coal Chemical Industry National Engineering Research Center Co., Ltd., Jinan, Shandong 250000, PR China
3. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China