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@INPROCEEDINGS{vanHolt:189590,
author = {van Holt, Désirée and Forster, Emanuel and Meulenberg,
Wilhelm Albert and Müller, Michael and Ivanova, Mariya and
Baumann, Stefan and Vassen, Robert},
title = {{H}igh-{T}emperature {S}ystems for a catalytic {CO}-{S}hift
{M}embrane {R}eactor},
reportid = {FZJ-2015-02728},
year = {2015},
abstract = {High-Temperature Systems for a catalytic CO-Shift
MembraneReactorDésirée van Holt, Emanuel Forster , Wilhelm
A. Meulenberg, Michael Müller, Mariya E.Ivanova, Stefan
Baumann, Robert VaßenForschungszentrum Jülich, Institute
of Energy and Climate Research, Leo-Brandt-Str.,
D-52425Juelich, Germanycorresponding author:
d.van.holt@fz-juelich.deThe sequestration of CO2 via
H2-selective, ceramic membranes in an IGCC-power plantis a
highly interesting method, particularly for the
high-temperature range of600 °C − 900 °C, due to the low
efficiency losses that can be reached. It was shown thateven
for this high-temperature range the utilization of a
CO-shift catalyst leads to aconsiderable increase of the
CO-conversion, at least up to 900 °C compared to
anoperation mode without catalyst[1]. However, the harsh
conditions of an IGCC-powerplant lead to very challenging
operation conditions for the dense H2-selectivemembranes as
well as for the CO-shift-catalysts.The present work aimed at
the development of thermo-chemically and
microstructurallystable, active and compatible
membrane-catalyst systems for futurecatalytic CO-shift
membrane-reactors. Therefore, the ceramic mixed protonic
electronicconductors BaCe0.2Zr0.7Yb0.08Ni0.02O3−d and
La5.5WO12−d were combined with ironbased catalysts like
Fe/Cr/Cu-spinels. These materials were already studied
intensivelyregarding the planned applications and show very
good properties [2]. Additionally, formembrane-catalyst
systems it is strongly required that the combined components
donot influence each other negatively i.e. by diffusion or
reaction.Figure: SEM picture of a cross section through a
membrane-catalyst system of a 86Fe14Cr-catalyst on atape
cast supported La5.5WO12−d-membrane after operation in a
membrane reactor at 850 °C.The investigation identified
material combinations that seem to be highly applicablefor
future catalytic CO-shift membrane reactors in the
high-temperature range up to900 °C. As shown in the figure
above, the 86Fe14Cr-spinel catalyst and the
La5.5WO12−d-membrane show very good compatibility.
Additional investigations on membranereactorperformance,
long term stability and scale up are necessary.[1] D. van
Holt, Keramische Membranen für die H2-Abtrennung in
CO-Shift-Reaktoren, DissertationRuhr-Universität Bochum
2014.[2] D. van Holt, E. Forster, M.E. Ivanova, W.A.
Meulenberg, M. Müller, S. Baumann, R. Vaßen,
Ceramicmaterials for H2 transport membranes applicable for
gas separation under coal-gasification-relatedconditions, J.
Eur. Ceram. Soc. 34 (2014) 2381 – 2389.},
month = {Jul},
date = {2015-07-04},
organization = {EuroMembrane 2015, Prague (Czech
Republic), 4 Jul 2015 - 10 Jul 2015},
cin = {IEK-9 / IEK-1 / IEK-2},
cid = {I:(DE-Juel1)IEK-9-20110218 / I:(DE-Juel1)IEK-1-20101013 /
I:(DE-Juel1)IEK-2-20101013},
pnm = {113 - Methods and Concepts for Material Development
(POF3-113) / HITEC - Helmholtz Interdisciplinary Doctoral
Training in Energy and Climate Research (HITEC)
(HITEC-20170406)},
pid = {G:(DE-HGF)POF3-113 / G:(DE-Juel1)HITEC-20170406},
typ = {PUB:(DE-HGF)1},
url = {https://juser.fz-juelich.de/record/189590},
}