1. College of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
2. Engineering Research Center of Seawater Utilization Technology, Ministry of Education, Hebei University of Technology, Tianjin 300130, P. R. China
3. National-Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, P. R. China