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Synthesis and Optimization of Low Temperature Gas Separation Processes

Authors
Journal
Industrial & Engineering Chemistry Research
0888-5885
Publisher
American Chemical Society
Publication Date
Keywords
  • Separation (Gas
  • Low-Temp
  • Synthesis And Optimization Of Low-Temp
  • Gas Sepn
  • Processes)
  • Algorithm (Genetic
  • Synthesis And Optimization Of Low-Temp
  • Gas Sepn
  • Processes)
  • Heat (Integration
  • Synthesis And Optimization Of Low-Temp
  • Gas Sepn
  • Processes)
  • Distillation
  • Optimization
  • Refrigeration (Synthesis And Optimization Of Low-Temp
  • Gas Sepn
  • Processes)
Disciplines
  • Design
  • Mathematics

Abstract

The synthesis and optimization of low-temp. gas sepn. processes is made complex due to the large no. of design options. In this paper, a new synthesis framework is proposed for screening low-temp. heat-integrated sepn. systems. Task representation is applied to the sepn. options. Sepn. options include flash drums, dephlegmators, and simple and complex distn. columns. Each task was developed with several device representations. Short-cut models of all the novel sepn. options are provided. Condensation for the sepn. system is provided by the refrigeration system or heat integration. An integration procedure with the refrigeration system is presented on the basis of shaft power targeting. A sequence-based superstructure is presented to accommodate all sepn. process options. In this paper, the optimization is carried out using a stochastic method (Genetic Algorithm). Various case studies are examd. to illustrate the approach. [on SciFinder (R)]

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