Optimizing the Conditions for Ammonia Production Using Absorption

Smith, Collin; McCormick, Alon V.; Cussler, E. L.

doi:10.1021/acssuschemeng.8b05395

Title: Optimizing the Conditions for Ammonia Production Using Absorption

Journal Article · 05 January 2019 · ACS Sustainable Chemistry & Engineering

DOI: https://doi.org/10.1021/acssuschemeng.8b05395 · OSTI ID:1494698

Smith, Collin ^[1];

^[2];

^[2]

Univ. of Minnesota, Minneapolis, MN (United States). Dept. of Chemical Engineering and Materials Science; Regents of the University of Minnesota
Univ. of Minnesota, Minneapolis, MN (United States). Dept. of Chemical Engineering and Materials Science

Ammonia is made from hydrogen and nitrogen over a catalyst operating at high temperature and pressure. More ammonia can be produced by changing how the ammonia synthesized is separated, i.e., by replacing the current condensation of ammonia with absorption in salts like magnesium chloride. This paper uses here the concept of resistances in series in conjunction with experiments of absorption and a well-established theory of reaction to identify conditions where the rate of ammonia synthesis can be increased. For example, in one case, if a condenser in a conventional process is simply replaced with an absorber, the increase in production rate per mass of catalyst is capped at 10%. However, if the recycle rate is simultaneously increased, the increase in production rate per gram of catalyst can exceed 1000%.

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Research Organization:: Univ. of Minnesota, Minneapolis, MN (United States)

Sponsoring Organization:: USDOE Advanced Research Projects Agency - Energy (ARPA-E); Minnesota Environment and Natural Resources Trust Fund (United States)

Grant/Contract Number:: AR0000804

OSTI ID:: 1494698

Journal Information:: ACS Sustainable Chemistry & Engineering, Journal Name: ACS Sustainable Chemistry & Engineering Journal Issue: 4 Vol. 7; ISSN 2168-0485

Publisher:: American Chemical Society (ACS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited By (3)

Catalytic resonance theory: superVolcanoes, catalytic molecular pumps, and oscillatory steady state Ardagh, M. Alexander; Birol, Turan; Zhang, Qi Catalysis Science & Technology, Vol. 9, Issue 18 https://doi.org/10.1039/c9cy01543d	journal	January 2019
Current and future role of Haber–Bosch ammonia in a carbon-free energy landscape Smith, Collin; Hill, Alfred K.; Torrente-Murciano, Laura Energy & Environmental Science, Vol. 13, Issue 2 https://doi.org/10.1039/c9ee02873k	journal	January 2020
Current and future role of Haber–Bosch ammonia in a carbon-free energy landscape Smith, Collin; Hill, Alfred K.; Torrente-Murciano, Laura Apollo - University of Cambridge Repository https://doi.org/10.17863/cam.49538	text	January 2020

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
absorption
ammonia
condensation
optimization
production rate

Title: Optimizing the Conditions for Ammonia Production Using Absorption

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References (21)

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