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Kinetic modelling of methanol synthesis over commercial catalysts: A critical assessment

Nestler, F. ORCID iD icon; Schütze, A. R.; Ouda, M.; Hadrich, M. J.; Schaadt, A.; Bajohr, S.; Kolb, T.

Abstract:

Kinetic modelling of methanol synthesis over commercial catalysts is of high importance for reactor and process design. Literature kinetic models were implemented and systematically discussed against a newly developed kinetic model based on published kinetic data. Deviations in the sensitivities of the kinetic models were explained by means of the experimentally covered parameter range. The simulation results proved that an extrapolation of the working range of the kinetic models can lead towards significant simulation errors especially with regard to pressure, stoichiometric number and CO/CO$_{2}$-ratio considerably limiting the applicability of kinetic models frequently applied in scientific literature. Therefore, the validated data range for kinetic models should be considered when detailed reactor simulations are carried out. With regard to Power-to-Methanol processes special attention should be drawn towards the rate limiting effect of water at high CO$_{2}$ contents in the syngas. Moreover, it was shown that kinetic models based on data measured over outdated catalysts show significantly lower activity than those derived from state-of-the-art catalysts and should therefore be applied with caution for reactor and process simulations. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000117898
Veröffentlicht am 25.11.2021
Originalveröffentlichung
DOI: 10.1016/j.cej.2020.124881
Scopus
Zitationen: 64
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Zitationen: 69
Cover der Publikation
Zugehörige Institution(en) am KIT Engler-Bunte-Institut (EBI)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 15.08.2020
Sprache Englisch
Identifikator ISSN: 1385-8947
KITopen-ID: 1000117898
HGF-Programm 34.14.02 (POF III, LK 01) Vergasung
Erschienen in The chemical engineering journal
Verlag Elsevier
Band 394
Seiten Art.Nr. 124881
Schlagwörter CO2 Hydrogenation, Kinetic Model, Methanol Synthesis, Power-to-Methanol, Reactor Simulation
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