Transport Reagents through the Pore Structure of a Membrane Catalyst under Isothermal and Non-Isothermal Conditions.
conventional reactor
diffusion coefficient
diffusion transport mode
dry reforming of methane
membrane catalyst
membrane reactor
molybdenum carbide
non-isothermal Knudsen diffusion
thermal creep
Journal
Membranes
ISSN: 2077-0375
Titre abrégé: Membranes (Basel)
Pays: Switzerland
ID NLM: 101577807
Informations de publication
Date de publication:
30 Jun 2021
30 Jun 2021
Historique:
received:
10
06
2021
revised:
26
06
2021
accepted:
29
06
2021
entrez:
2
7
2021
pubmed:
3
7
2021
medline:
3
7
2021
Statut:
epublish
Résumé
The article presents the results of an experimental comparison of methane transport in the pore structure of a membrane catalyst under isothermal and non-isothermal Knudsen diffusion conditions. It is shown that under the conditions of non-isothermal Knudsen diffusion in the pore structure of the membrane catalyst, there is a coupling of dry reforming of the methane (DRM) and gas transport, which leads to the intensification of this process. The reasons for the intensification are changes in the mechanism of gas transport, an increase in the rate of mass transfer, and changes in the mechanism of some stages of the DRM. The specific rate constant of the methane dissociation reaction on a membrane catalyst turned out to be an order of magnitude (40 times) higher than this value on a traditional (powder) catalyst.
Identifiants
pubmed: 34209108
pii: membranes11070497
doi: 10.3390/membranes11070497
pmc: PMC8306762
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : D. Mendeleev University of Chemical Technology of Russia
ID : 032-2020
Déclaration de conflit d'intérêts
The authors declare no conflict of interest.
Références
Front Chem. 2014 Nov 11;2:81
pubmed: 25426488
Micromachines (Basel). 2019 Apr 14;10(4):
pubmed: 31013999