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Comparison of different ammonia synthesis loop configurations with the aid of advanced exergy analysis

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  • Penkuhn, Mathias
  • Tsatsaronis, George

Abstract

An industrial ammonia synthesis loop is a complex interconnected system. With the synthesis reactor operated at high-pressure levels and with synthesis gas made of hydrogen and nitrogen, a highly efficient process design is necessary in order to meet the requirements in terms of cost-efficiency and environmental impact. The evaluation and optimization of different designs in the process synthesis phase are generally done by considering mass and energy balances. However, the conclusions drawn from such an analysis can be misleading and provide, if any, little useful information with respect to system improvement. In order to address these issues, an exergy analysis is used to identify the real thermodynamic inefficiencies of a system and its components. Furthermore, a subsequently conducted advanced exergy analysis provides the means to determine the structural interactions within a system and the thermodynamic improvement potential of its components. In this context, two different ammonia synthesis loop configurations are analyzed. The first concept consists of a three-staged adiabatic reactor with intermediate quench cooling, whereas the second design features a cooled reactor.

Suggested Citation

  • Penkuhn, Mathias & Tsatsaronis, George, 2017. "Comparison of different ammonia synthesis loop configurations with the aid of advanced exergy analysis," Energy, Elsevier, vol. 137(C), pages 854-864.
    • Handle: RePEc:eee:energy:v:137:y:2017:i:c:p:854-864
    DOI: 10.1016/j.energy.2017.02.175
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    References listed on IDEAS

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    Cited by:

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    7. Ansarinasab, Hojat & Fatimah, Manal & Khojasteh-Salkuyeh, Yaser, 2024. "Sustainable production of ammonia and formic acid using three chemical looping reactors and CO2 electroreduction cell," Renewable and Sustainable Energy Reviews, Elsevier, vol. 197(C).
    8. Natalie Christine Nakaten & Thomas Kempka, 2017. "RETRACTED: Techno-Economic Comparison of Onshore and Offshore Underground Coal Gasification End-Product Competitiveness," Energies, MDPI, vol. 10(10), pages 1, October.
    9. Xiang, Dong & Zhou, Yunpeng, 2018. "Concept design and techno-economic performance of hydrogen and ammonia co-generation by coke-oven gas-pressure swing adsorption integrated with chemical looping hydrogen process," Applied Energy, Elsevier, vol. 229(C), pages 1024-1034.
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    11. Caglayan, Hasan & Caliskan, Hakan, 2022. "Assessment of a cogeneration system for ceramic industry by using various exergy based economic approaches," Renewable and Sustainable Energy Reviews, Elsevier, vol. 167(C).

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