Systematic Synthesis of Mass Exchange Networks for Multicomponent Systems

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• 作者：Linlin Liu ; Mahmoud M. El-Halwagi ; Jian Du ; Jos茅 Mar铆a Ponce-Ortega ; Pingjing Yao
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2013
• 出版时间：October 2, 2013
• 年：2013
• 卷：52
• 期：39
• 页码：14219-14230
• 全文大小：469K
• 年卷期：v.52,no.39(October 2, 2013)
• ISSN：1520-5045

文摘

The synthesis of mass exchange networks (MENs) is an important systematic tool for screening mass-separating agents (MSAs) and satisfying the mass transfer demands while considering process, environmental, and economic requirements. Most of the MEN research has focused on single-component problems. Much less attention has been given to the multicomponent problem. Therefore, the aim of this paper is to develop a systematic method to deal with the multicomponent MEN synthesis problem. The concept of interception is introduced to account for compatible mass transfer of the multiple components in a way that can be practically realized in mass exchange units. A mixed-integer nonlinear programming (MINLP) model is established to embed potential configurations of interest. Linearization, disjunctive programming, and relaxation are used to enhance the solvability of the optimization program, which is aimed at minimizing the total annualized cost (TAC) of the MEN. Two case studies from the literature, the recovery of copper from an etching plant and the simultaneous removal of H₂S and CO₂ from coke-oven gas (COG), are solved to illustrate the application of the proposed method.