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2022, Volume 16, Issue 2

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Frontiers of Chemical Science and Engineering >> 2022, Volume 16, Issue 2 doi: 10.1007/s11705-021-2055-9

Automated synthesis of steady-state continuous processes using reinforcement learning

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Received:15 Nov 202 Revised:15 Mar 202 Accepted: 18 May 202 Available online:2022-02-15

Abstract

Automated flowsheet synthesis is an important field in computer-aided process engineering. The present work demonstrates how reinforcement learning can be used for automated flowsheet synthesis without any heuristics or prior knowledge of conceptual design. The environment consists of a steady-state flowsheet simulator that contains all physical knowledge. An agent is trained to take discrete actions and sequentially build up flowsheets that solve a given process problem. A novel method named SynGameZero is developed to ensure good exploration schemes in the complex problem. Therein, flowsheet synthesis is modelled as a game of two competing players. The agent plays this game against itself during training and consists of an artificial neural network and a tree search for forward planning. The method is applied successfully to a reaction-distillation process in a quaternary system.

Keywords

automated process synthesis ; flowsheet synthesis ; artificial intelligence ; machine learning ; reinforcement learning

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京公网安备 11010502051620号 京ICP备11030251号-2