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Computational Fluid Dynamics of Ammonia Synthesis in Axial-Radial Bed Reactor

Author

Listed:
  • Mariusz Tyrański

    (Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland)

  • Jakub Michał Bujalski

    (Yara International ASA, Yara Technology and Projects, 3936 Porsgrunn, Norway)

  • Wojciech Orciuch

    (Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland)

  • Łukasz Makowski

    (Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland)

Abstract

Ammonia synthesis by the Haber–Bosch method is a typical and effective implementation of the chemical process in the large-scale fertiliser industry. Due to the growing demand for fertilisers and food, it is desirable to study this process thoroughly using modern numerical methods to improve the operation of existing devices and facilitate the design of new devices in industrial installations. This manuscript focuses on the influence of the catalyst bed parameters on the ammonia synthesis process. Variants with different sizes of catalyst particles and modifications of the geometry of catalytic beds were considered. The axial-radial Topsoe converter with magnetite as a catalyst, commonly used in modern fertiliser industry beds, was investigated using Computational Fluid Dynamics. As a result, contours of velocity, pressure, concentration, and rate of ammonia formation were obtained. The analysis of the obtained results made it possible to determine the gradient of ammonia production rate in the catalyst bed and designate zones with negligible reaction rates. The authors also proposed possible bed geometry modifications to reduce bed volumes without affecting the converter’s performance.

Suggested Citation

  • Mariusz Tyrański & Jakub Michał Bujalski & Wojciech Orciuch & Łukasz Makowski, 2023. "Computational Fluid Dynamics of Ammonia Synthesis in Axial-Radial Bed Reactor," Energies, MDPI, vol. 16(18), pages 1-21, September.
  • Handle: RePEc:gam:jeners:v:16:y:2023:i:18:p:6680-:d:1242345
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    References listed on IDEAS

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    1. Asadul Hoque & Muhammad Mohiuddin & Zhan Su, 2018. "Effects of Industrial Operations on Socio-Environmental and Public Health Degradation: Evidence from a Least Developing Country (LDC)," Sustainability, MDPI, vol. 10(11), pages 1-22, October.
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