Modelling of packed bed and coated wall microreactors for methanol steam reforming for hydrogen production.

Autor: Hafeez S; Division of Chemical & Energy Engineering, School of Engineering, London South Bank University London SE1 0AA UK constaa8@lsbu.ac.uk +44 (0)20 7815 7185., Aristodemou E; Division of Chemical & Energy Engineering, School of Engineering, London South Bank University London SE1 0AA UK constaa8@lsbu.ac.uk +44 (0)20 7815 7185., Manos G; Department of Chemical Engineering, University College London London WCIE 7JE UK., Al-Salem SM; Environment & Life Sciences Research Centre, Kuwait Institute for Scientific Research P. O. Box: 24885 Safat 13109 Kuwait., Constantinou A; Division of Chemical & Energy Engineering, School of Engineering, London South Bank University London SE1 0AA UK constaa8@lsbu.ac.uk +44 (0)20 7815 7185.; Department of Chemical Engineering, University College London London WCIE 7JE UK.; Department of Chemical Engineering, Cyprus University of Technology 57 Corner of Athinon and Anexartisias 3036 Limassol Cyprus.
Jazyk: angličtina
Zdroj: RSC advances [RSC Adv] 2020 Nov 13; Vol. 10 (68), pp. 41680-41692. Date of Electronic Publication: 2020 Nov 13 (Print Publication: 2020).
DOI: 10.1039/d0ra06834a
Abstrakt: A Computational Fluid Dynamics (CFD) study has been conducted to assess the performance of packed bed and coated wall microreactors for the steam reforming of methanol with a CuO/ZnO/Al 2 O 3 based catalyst (BASF F3-01). The results obtained were compared to experimental data from the literature to assess the validity and robustness of the models, and a good validation has been obtained. The performance of the packed bed and coated wall microreactors is similar at a constant reforming temperature. It was found that methanol conversion is enhanced with increasing temperature, residence time, steam to methanol ratio, and catalyst coating thickness. Furthermore, internal and external mass transfer phenomena were investigated using the models, and it was found that there were no internal and external mass transfer resistances for this reactor configuration. Further studies demonstrated that larger catalyst pellet sizes led to the presence of internal mass transfer resistance, which in turn causes lower methanol conversions. The CFD models have exhibited a sound agreement with the experimental data, hence they can be used to predict the steam reforming of methanol in microreactors.
Competing Interests: There are no conflicts to declare.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE
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