Modeling and constrained optimization of an auto-thermalammonia synthesis reactor using genetic algorithm

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CBGCONF03_033

تاریخ نمایه سازی: 8 آبان 1395

Abstract:

This paper presents the simulation and optimal design of an ammonia synthesis reactor. The estimation of optimal length of reactor, which gives the maximum profit, is the main objective that is focused on. Different high temperatures with constraints of energy and mass balance of reaction and feed gas temperature and mass flow rate of nitrogen for ammonia production are considered in this study. The optimization procedure is done by genetic algorithm (GA). GA is chosen as an optimization tool simply because of its successful application to many engineering optimization problems. Simulation results with GA are in agreement with the reactor types in industries. It is found that no spikes, noreverse reaction can take place even at high temperature of 800 K and the maximum value of ammonia objective is 5.024×106 $/year at optimal reactor length of 7.4994 m. The successful employment of GA in ammonia reactor design suggests its application for otherreactors design and/or modeling.

Authors

H. R. Khaledian

Department of Chemical and Petroleum Engineering, Faculty of Science, University of Tab, Tabriz,Iran

A Tarjomannejad

Department of Chemical and Petroleum Engineering, Faculty of Science, University of Tab, Tabriz,Iran

B Mehri KordLar

Faculty of Science, Urmia University, Urmia, Iran

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