Journal
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
Volume 42, Issue 4, Pages 285-289Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0255-2701(02)00060-0
Keywords
liquid-vapour equilibria; urea synthesis process; neural networks
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A feedforward, multilayer neural network was used for simulation of complex liquid-vapour equilibrium in an industrial process of urea synthesis from ammonia and carbon dioxide. It was found that the properly selected and trained neural network rendered precisely, qualitatively and quantitatively, the thermodynamic character of the dependence of total pressure, partial pressures and mole fractions of gaseous reactants on the urea system state parameters. Artificial neural networks are an effective tool for modelling complex phase equilibria in chemical technology. (C) 2002 Elsevier Science B.V. All rights reserved.
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