Interactions between oxygen permeation and homogeneous-phase fuel conversion on the sweep side of an ion transport membrane

Handle URI:
http://hdl.handle.net/10754/598641
Title:
Interactions between oxygen permeation and homogeneous-phase fuel conversion on the sweep side of an ion transport membrane
Authors:
Hong, Jongsup; Kirchen, Patrick; Ghoniem, Ahmed F.
Abstract:
The interactions between oxygen permeation and homogeneous fuel oxidation reactions on the sweep side of an ion transport membrane (ITM) are examined using a comprehensive model, which couples the dependency of the oxygen permeation rate on the membrane surface conditions and detailed chemistry and transport in the vicinity of the membrane. We assume that the membrane surface is not catalytic to hydrocarbon or syngas oxidation. Results show that increasing the sweep gas inlet temperature and fuel concentration enhances oxygen permeation substantially. This is accomplished through promoting oxidation reactions (oxygen consumption) and the transport of the products and reaction heat towards the membrane, which lowers the oxygen concentration and increases the gas temperature near the membrane. Faster reactions at higher fuel concentration and higher inlet gas temperature support substantial fuel conversion and lead to a higher oxygen permeation flux without the contribution of surface catalytic activity. Beyond a certain maximum in the fuel concentration, extensive heat loss to the membrane (and feed side) reduces the oxidation kinetic rates and limits oxygen permeation as the reaction front reaches the membrane. The sweep gas flow rate and channel height have moderate impacts on oxygen permeation and fuel conversion due to the residence time requirements for the chemical reactions and the location of the reaction zone relative to the membrane surface. © 2012 Elsevier B.V.
Citation:
Hong J, Kirchen P, Ghoniem AF (2013) Interactions between oxygen permeation and homogeneous-phase fuel conversion on the sweep side of an ion transport membrane. Journal of Membrane Science 428: 309–322. Available: http://dx.doi.org/10.1016/j.memsci.2012.10.055.
Publisher:
Elsevier BV
Journal:
Journal of Membrane Science
KAUST Grant Number:
KSU-I1-010-01
Issue Date:
Feb-2013
DOI:
10.1016/j.memsci.2012.10.055
Type:
Article
ISSN:
0376-7388
Sponsors:
The authors would like to thank the King Fahd University of Petroleum and Minerals (KFUPM) in Dhahran, Saudi Arabia, for funding the research reported in this paper through the Center of Clean Water and Clean Energy at Massachusetts Institute of Technology and KFUPM. This work is also supported by King Abdullah University of Science and Technology grant number KSU-I1-010-01.
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Full metadata record

DC FieldValue Language
dc.contributor.authorHong, Jongsupen
dc.contributor.authorKirchen, Patricken
dc.contributor.authorGhoniem, Ahmed F.en
dc.date.accessioned2016-02-25T13:33:39Zen
dc.date.available2016-02-25T13:33:39Zen
dc.date.issued2013-02en
dc.identifier.citationHong J, Kirchen P, Ghoniem AF (2013) Interactions between oxygen permeation and homogeneous-phase fuel conversion on the sweep side of an ion transport membrane. Journal of Membrane Science 428: 309–322. Available: http://dx.doi.org/10.1016/j.memsci.2012.10.055.en
dc.identifier.issn0376-7388en
dc.identifier.doi10.1016/j.memsci.2012.10.055en
dc.identifier.urihttp://hdl.handle.net/10754/598641en
dc.description.abstractThe interactions between oxygen permeation and homogeneous fuel oxidation reactions on the sweep side of an ion transport membrane (ITM) are examined using a comprehensive model, which couples the dependency of the oxygen permeation rate on the membrane surface conditions and detailed chemistry and transport in the vicinity of the membrane. We assume that the membrane surface is not catalytic to hydrocarbon or syngas oxidation. Results show that increasing the sweep gas inlet temperature and fuel concentration enhances oxygen permeation substantially. This is accomplished through promoting oxidation reactions (oxygen consumption) and the transport of the products and reaction heat towards the membrane, which lowers the oxygen concentration and increases the gas temperature near the membrane. Faster reactions at higher fuel concentration and higher inlet gas temperature support substantial fuel conversion and lead to a higher oxygen permeation flux without the contribution of surface catalytic activity. Beyond a certain maximum in the fuel concentration, extensive heat loss to the membrane (and feed side) reduces the oxidation kinetic rates and limits oxygen permeation as the reaction front reaches the membrane. The sweep gas flow rate and channel height have moderate impacts on oxygen permeation and fuel conversion due to the residence time requirements for the chemical reactions and the location of the reaction zone relative to the membrane surface. © 2012 Elsevier B.V.en
dc.description.sponsorshipThe authors would like to thank the King Fahd University of Petroleum and Minerals (KFUPM) in Dhahran, Saudi Arabia, for funding the research reported in this paper through the Center of Clean Water and Clean Energy at Massachusetts Institute of Technology and KFUPM. This work is also supported by King Abdullah University of Science and Technology grant number KSU-I1-010-01.en
dc.publisherElsevier BVen
dc.subjectFuel conversionen
dc.subjectHigh temperature membrane reactoren
dc.subjectIon transport membraneen
dc.subjectOxy-fuel combustionen
dc.subjectOxygen permeationen
dc.subjectPartial oxidation of methaneen
dc.subjectSyngas productionen
dc.titleInteractions between oxygen permeation and homogeneous-phase fuel conversion on the sweep side of an ion transport membraneen
dc.typeArticleen
dc.identifier.journalJournal of Membrane Scienceen
dc.contributor.institutionMassachusetts Institute of Technology, Cambridge, United Statesen
dc.contributor.institutionThe University of British Columbia, Vancouver, Canadaen
kaust.grant.numberKSU-I1-010-01en
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