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@ARTICLE{Bittner:1031833,
author = {Bittner, Kai and Margaritis, Nikolaos and Schulze-Küppers,
Falk and Wolters, Jörg and Natour, Ghaleb},
title = {{CFD} {M}odelling of {H}ydrogen {P}roduction via {W}ater
{S}plitting in {O}xygen{M}embrane {R}eactors},
journal = {Membranes},
volume = {14},
number = {10},
issn = {2077-0375},
address = {Basel},
publisher = {MDPI},
reportid = {FZJ-2024-05848},
pages = {219 -},
year = {2024},
abstract = {The utilization of oxygen transport membranes enables the
production of high-purityhydrogen by the thermal
decomposition of water below 1000 ◦C. This process is
based on a chemicalpotential gradient across the membrane,
which is usually achieved by introducing a reducing
gas.Computational fluid dynamics (CFD) can be used to model
reactors based on this concept. In thisstudy, a modelling
approach for water splitting is presented in which oxygen
transport throughthe membrane acts as the rate-determining
process for the overall reaction. This transport stepis
implemented in the CFD simulation. Both gas compartments are
modelled in the simulations.Hydrogen and methane are used as
reducing gases. The model is validated using experimental
datafrom the literature and compared with a simplified
perfect mixing modelling approach. Althoughthe main focus of
this work is to propose an approach to implement the water
splitting in CFDsimulations, a simulation study was
conducted to exemplify how CFD modelling can be utilized
indesign optimization. Simplified 2-dimensional and
rotational symmetric reactor geometries werecompared. This
study shows that a parallel overflow of the membrane in an
elongated reactor isadvantageous, as this reduces the back
diffusion of the reaction products, which increases the
meandriving force for oxygen transport through the
membrane.},
cin = {ZEA-1},
ddc = {570},
cid = {I:(DE-Juel1)ZEA-1-20090406},
pnm = {1232 - Power-based Fuels and Chemicals (POF4-123)},
pid = {G:(DE-HGF)POF4-1232},
typ = {PUB:(DE-HGF)16},
pubmed = {39452831},
UT = {WOS:001342790600001},
doi = {10.3390/membranes14100219},
url = {https://juser.fz-juelich.de/record/1031833},
}