1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
2. China Petroleum Technology and Development Corporation, Beijing 100027, P. R. China
3. Petrochemical Research Institute, Petrochina Company Limited, Beijing 100195, P. R. China
4. National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou 350002, P. R. China