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Simulation and optimization of VRPSA system based on pseudo-transient method
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  • Zhaoyang Niu,
  • Wenbin Li,
  • Zhongli Tang,
  • Yuanhui Shen,
  • Donghui Zhang
Zhaoyang Niu
Tianjin University

Corresponding Author:[email protected]

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Wenbin Li
Tianjin University
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Zhongli Tang
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Yuanhui Shen
Tianjin University
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Donghui Zhang
Tianjin University
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In order to address the challenge of pressure swing adsorption system optimization, an optimization framework based on pseudo transient continuation method was used and vacuum rapid pressure swing adsorption process for oxygen production as a typical example. A pseudo transient model library was established and a robust two-stage dynamic tearing model was proposed to deal with the cyclic steady state conditions. Furthermore, the time constants were discussed and a practical time constant strategy and expressions were proposed for the stability and efficiency of calculation. Finally, reduced successive quadratic programming and time relaxation algorithm were used for the optimization of the two systems respectively, and the optimization results showed that although the simulation time of pseudo transient system is slightly higher than that of single discretization system, the optimization expense of single discretization system in two cases were 5.7 times and 11.6 times of that of pseudo transient system respectively.
08 Nov 2021Submitted to AIChE Journal
09 Nov 2021Submission Checks Completed
09 Nov 2021Assigned to Editor
18 Nov 2021Reviewer(s) Assigned
17 Dec 2021Editorial Decision: Revise Major
30 Jan 20221st Revision Received
30 Jan 2022Assigned to Editor
30 Jan 2022Submission Checks Completed
05 Feb 2022Reviewer(s) Assigned
05 Mar 2022Editorial Decision: Revise Major
14 Mar 20222nd Revision Received
15 Mar 2022Submission Checks Completed
15 Mar 2022Assigned to Editor
16 Mar 2022Reviewer(s) Assigned
08 Apr 2022Editorial Decision: Accept