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Reactor and Heat Exchanger Network Synthesis with Genetic Algorithm

Eghbal Ahmadi, Mohammad Hosein | 2011

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 42448 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Farhadi, Fathollah; Bozorgmehri, Ramin
  7. Abstract:
  8. In most chemical processes, at the first stage, the feed are being treated in physical steps such as preheating. Afterward it enters reaction system to undergo chemical treatment. In the final stage, product of reaction system is physically processed to prepare them to exit the boundary of the process. There are various ways to process materials chemically. This process can be continuous, batch and even semi-batch, via a single reactor or a network of the reactors. And also it can be performed under various range of operating condition. Moreover in some cases, intermediate cooling and heating is necessary. The question is that which configuration and operating condition is the best. The goal of reactor and heat exchanger network synthesis is find the best types, sizes, topology and operating condition of equipments for a known reaction network, It’s kinetic, reactor and heat exchanger types and a predefined feed properties and objective function. In this project, reactor and heat exchanger network synthesis has been done. Considering the nonlinearity of equations, variety of equipments types and complexity and immensity of the search space, Genetic Algorithm as one of efficient global optimizing algorithm that is based on evolution of a population of possible answers, has been used for optimization. Automation capability of HYSYS as a commercialized simulator has been used through progressing the algorithm for rigorous calculating the properties and simulating the flowsheet. Two case studies that are production of allyl chloride and OCM reaction have been solved with the algorithm to show the flexibility and efficiency of the method
  9. Keywords:
  10. Genetic Algorithm ; Process Synthesis ; Optimization ; Reactor Network ; Heat Exchangers

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