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000136214 0247_ $$2ISSN$$a1866-1793
000136214 0247_ $$2Handle$$a2128/3770
000136214 020__ $$a978-3-89336-630-9
000136214 037__ $$aPreJuSER-136214
000136214 041__ $$aGerman
000136214 082__ $$a500
000136214 082__ $$a333.7
000136214 082__ $$a620
000136214 084_0 $$aEBA - Energy production, energy technology
000136214 084_1 $$aEBA - Energieerzeugung, Energietechnologie
000136214 1001_ $$0P:(DE-Juel1)VDB76617$$aSchlehuber, Dominic$$b0$$eCorresponding author$$gmale$$ufzj
000136214 245__ $$aSauerstofftransport und Degradationsverhalten von Hochtemperaturmembranen für CO$_{2}$-freie Kraftwerke
000136214 260__ $$aJülich$$bForschungszentrum Jülich GmbH Zentralbibliothek, Verlag$$c2010
000136214 300__ $$aVII, 139 S.
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000136214 4900_ $$0PERI:(DE-600)2445288-9$$aSchriften des Forschungszentrums Jülich. Reihe Energie und Umwelt / Energy und Environment$$v65
000136214 502__ $$aRWTH Aachen, Diss., 2010$$bDr.$$cRWTH Aachen$$d2010
000136214 500__ $$aRecord converted from JUWEL: 18.07.2013
000136214 520__ $$aThis thesis deals with membranes for oxygen separation from air for high temperature application in fossil power plants within the scope of the oxyfuel-process. Different perovskite membrane materials (ABO$_{3- \delta}$) were investigated concerning the oxygen transport and their chemical stability under operation condition. The association between oxygen transport properties and both the thermodynamic boundary conditions as well as the material properties (membrane thickness and surface properties) was studied. One possibility to achieve higher oxygen fluxes through the membrane is to reduce the thickness. In this case the influence of surface processes on the overall permeation becomes noteworthy. The effect of different membrane surface modifications on the permeation rate was investigated. For example it could be confirmed, that a porous layer on the membrane surface significantly increases the permeation flux due to the compensation of surface exchange limitations. Beyond that, degradation processes during the operation under power plant condition were investigated. Special attention was attached to the influence of degradation on the permeation flux during long term operation. Thereby kinetic demixing of the membrane material was observed.
000136214 650_4 $$acarbon dioxide
000136214 650_4 $$acarbon dioxide acceptor process
000136214 650_4 $$afossil fuel power plant
000136214 650_4 $$ahigh temperature materials
000136214 650_4 $$amembrane separation
000136214 650_4 $$aoxygen
000136214 650_4 $$atransport
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000136214 9201_ $$0I:(DE-Juel1)VDB1115$$kIEF$$lInstitut für Energieforschung$$x0
000136214 9201_ $$0I:(DE-Juel1)VDB810$$kIEF-2$$lWerkstoffstruktur und Eigenschaften$$x1
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