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Vol: 58(72) No: 2 / June 2013 Vertical Ammonia Synthesis Reactor: Modeling, Simulation and Control Principles A. Cioloca Technical University of Cluj-Napoca, Memorandumului St., No.28, RO-400014, Cluj-Napoca, Romania R. Both Technical University of Cluj-Napoca, Memorandumului St., No.28, RO-400014, Cluj-Napoca, Romania, e-mail: roxana.both@aut.utcluj.ro R. Festila Technical University of Cluj-Napoca, Memorandumului St., No.28, RO-400014, Cluj-Napoca, Romania Keywords: ammonia synthesis process, reactor, mathematical modeling, simulation Abstract The most complex and hazardous equipments in the chemical industry are represented by the chemical reactors. This paper focuses on the vertical ammonia synthesis reactor, of high importance in the national economy, the product being used as raw material for chemical fertilizers, polymers, industrial coolers. The work deals with both the modeling and the control of the ammonia synthesis reactor. At first a nonlinear model based on fundamental equations from chemical engineering is presented. Due to its complexity a simplified linear operational model is determined and used further on in the control design step. Both determined models are validated using experimental data. References [1] A. Dashti, K. Khorsand, M. A. Marvas, M. Kakavand, Modeling and simulation of ammonia synthesis reactor, Petroleum & Coal, vol. 48, no. 2, pp. 15-23, 2006. [2] M. Vanatoru, Modeling and simulation of the Ammonia Synthesis column, private paper, University of Craiova, Automation and Mechatronics Department, Romania, 2011. [3] J. R. Jennings, Catalytic Ammonia Synthesis Fundamentals and Practice, Plenum Press, 1991. [4] ***KBR Advanced Ammonia Process (KAAPTM) Firm Documentation. [5] A. Cioloca, R. Both, R. Festila, Model validation, simulation and control for ammonia synthesis column, Proceedings of IEEE 8th International Symposium on Applied Computational Intelligence and Informatics (SACI 2013), Timisoara, Romania, 2013. [6] A. Cioloca. Modeling and control of the ammonia synthesis process – in Romanian, Diploma thesis, Technical University of Cluj-Napoca, Romania, 2012. [7] M. Vanatoru, Control systems of the Ammonia Synthesis column, private paper, University of Craiova, Automation and Mechatronics Department, Romania, 2011. [8] M. Vînătoru,. Automatic Control of Industrial Processes, Universitaria Publishing House, Craiova, Romania, 2001. |