Design of separation process of azeotropic mixtures based on the green chemical principles |
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| Institution: | 1. Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, China;2. Graduate School of Chinese Academy of Science, Beijing 100039, China;1. College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China;2. College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;1. College of Chemical Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao, 266042, China;2. State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China;1. Department of Chemical Engineering, Process Engineering for Sustainable Systems (ProcESS), KU Leuven, W. de Croylaan 46, B-3001 Leuven, Belgium;2. Department of Modeling for Engineering, University of Calabria, Arcavacata Campus, via P. Bucci, 87036 Arcavacata di Rende, Italy;3. Thomas More University College, Kleinhoefstraat 4, B-2440 Geel, Belgium |
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| Abstract: | This paper presents an integrated methodology for synthesis of separation process of azeotropic mixture based on the green chemical principles, which inherently incorporates environmental factors into the separation process synthesis. Characterization of the environmental impact of a chemical process is carried out on the basis of our established environmental impact database (containing nine indices). The superstructure is optimized more effectively and reliably by integrating the mathematical programming approach using multi-objective mixed integer non-linear programming techniques and heuristic approach. The complexity and size of synthesis search space were greatly reduced by applying the thermodynamic insights into the selection of separation techniques. The proposed methodology was highlighted through two industrial examples, one is the separation of azeotropic mixture of dimethyl carbonate and methanol, the other is the separation of azeotropic mixture of isopropanol and water. |
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