1. School of Chemical Engineering and Technology, Tianjin University, 300072 Tianjin, P. R. China
2. National Engineering Research Centre for Distillation Technology, 300072 Tianjin, P. R. China
3. Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 2 V4, Canada
4. Collaborative Innovation Center of Chemical Science and Engineering, 300072 Tianjin, P. R. China