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@INPROCEEDINGS{Meulenberg:907577,
author = {Meulenberg, Wilhelm Albert and Baumann, Stefan and Deibert,
Wendelin and Wolter, Julia Lucia and Van Gestel, Tim and
Guillon, Olivier},
title = {{C}eramic {M}embranes for {H}ydrogen {S}eparation from
{G}as {M}ixtures},
reportid = {FZJ-2022-02089},
year = {2021},
abstract = {Hydrogen separation from gas mixtures can be realized by
dense ceramic membranes or porous membranes. Dense ceramic
gas separation membranes usually pass ions through their
lattice in a temperature range of 400-900°C. The charge
balance also takes place through electron conduction in the
membrane. The driving force is the gradient of the partial
pressure across the membrane. Single-phase perovskites or
fluorites are usually used as mixed conducting materials.
Recently, however, dual-phase systems in which an ionically
conducting phase is mixed with an electronically conducting
phase have been increasingly used. The advantage of this
combination is that a large number of very stable material
systems is available. In order to ensure a high transport of
oxygen or hydrogen, the membranes should be designed as a
thin layer on a porous carrier. To reach a high performance
of this membrane systems, thin film membranes, active
surface layers and thermochemical and -mechanical stable
supports with designed porosity are required. Porous
membranes separate gases by molecular sieving and adsorption
effects. The pore sizes of the so-called microporous
membranes are in the range of the kinetic diameters of the
gases to be separated, i.e. in the range of approx. 0.2-0.4
nm. The carrier of thin film membranes must ensure
sufficient mechanical stability and good gas transport. In
addition to thermochemical stability under application
conditions, no reaction between membrane and substrate
material should occur during sintering or operation.Planar,
tubular, hollow fibre or honeycomb concepts are used for the
membrane design. Depending on the application, the
respective designs have specific advantages or
disadvantages. Due to the high temperatures, innovative
joining concepts are often required. Mostly glass ceramic
solders or metallic reactive solders are used.In the
application, a distinction can be made between pure gas
separation, i.e. the provision of e.g. oxygen or hydrogen,
and membrane reactors. In membrane reactors, in addition to
gas separation, a chemical reaction takes place on one or
both sides of the membrane. The supply of gases can be of
interest for power plants, cement, steel or glass plants as
well as mobile applications. Membrane reactors can be used
to produce basic chemicals or synthetic fuels.},
month = {May},
date = {2022-05-03},
organization = {Aachen Hydrogen Colloquium, Aachen
(Germany), 3 May 2022 - 4 May 2022},
subtyp = {After Call},
cin = {IEK-1 / JARA-ENERGY},
cid = {I:(DE-Juel1)IEK-1-20101013 / $I:(DE-82)080011_20140620$},
pnm = {1232 - Power-based Fuels and Chemicals (POF4-123)},
pid = {G:(DE-HGF)POF4-1232},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/907577},
}