A novel ion transport membrane reactor for fundamental investigations of oxygen permeation and oxy-combustion under reactive flow conditions

Handle URI:
http://hdl.handle.net/10754/597359
Title:
A novel ion transport membrane reactor for fundamental investigations of oxygen permeation and oxy-combustion under reactive flow conditions
Authors:
Kirchen, Patrick; Apo, Daniel J.; Hunt, Anton; Ghoniem, Ahmed F.
Abstract:
Ion transport membrane (ITM) reactors present an attractive technology for combined air separation and fuel conversion in applications such as syngas production, oxidative coupling or oxy-combustion, with the promise of lower capital and operating costs, as well higher product selectivities than traditional technologies. The oxygen permeation rate through a given ITM is defined by the membrane temperature and oxygen chemical potential difference across it. Both of these parameters can be strongly influenced by thermochemical reactions occurring in the vicinity of the membrane, though in the literature they are often characterized in terms of the well mixed product stream at the reactor exit. This work presents the development of a novel ITM reactor for the fundamental investigation of the coupling between fuel conversion and oxygen permeation under well defined fluid dynamic and thermodynamic conditions, including provisions for spatially resolved, in-situ investigations. A planar, finite gap stagnation flow reactor with optical and probe access to the reaction zone is used to facilitate in-situ measurements and cross-validation with detailed numerical simulations. Using this novel reactor, baseline measurements are presented to elucidate the impact of the sweep gas fuel (CH4) fraction on the oxygen permeation and fuel conversion. In addition, the difference between well-mixed gas compositions measured at the reactor outlet and those measured in the vicinity of the membrane surface are discussed, demonstrating the unique utility of the reactor. © 2012 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
Citation:
Kirchen P, Apo DJ, Hunt A, Ghoniem AF (2013) A novel ion transport membrane reactor for fundamental investigations of oxygen permeation and oxy-combustion under reactive flow conditions. Proceedings of the Combustion Institute 34: 3463–3470. Available: http://dx.doi.org/10.1016/j.proci.2012.07.076.
Publisher:
Elsevier BV
Journal:
Proceedings of the Combustion Institute
Issue Date:
Jan-2013
DOI:
10.1016/j.proci.2012.07.076
Type:
Article
ISSN:
1540-7489
Sponsors:
This work was supported by the King Fahd University of Petroleum and Minerals in Dhahran, Saudi Arabia, and the King Abdullah University of Science and Technology in Thuwal, Saudi Arabia. The support from Ceramatec Incorporated and Air Products and Chemicals is also most gratefully acknowledged.
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DC FieldValue Language
dc.contributor.authorKirchen, Patricken
dc.contributor.authorApo, Daniel J.en
dc.contributor.authorHunt, Antonen
dc.contributor.authorGhoniem, Ahmed F.en
dc.date.accessioned2016-02-25T12:31:32Zen
dc.date.available2016-02-25T12:31:32Zen
dc.date.issued2013-01en
dc.identifier.citationKirchen P, Apo DJ, Hunt A, Ghoniem AF (2013) A novel ion transport membrane reactor for fundamental investigations of oxygen permeation and oxy-combustion under reactive flow conditions. Proceedings of the Combustion Institute 34: 3463–3470. Available: http://dx.doi.org/10.1016/j.proci.2012.07.076.en
dc.identifier.issn1540-7489en
dc.identifier.doi10.1016/j.proci.2012.07.076en
dc.identifier.urihttp://hdl.handle.net/10754/597359en
dc.description.abstractIon transport membrane (ITM) reactors present an attractive technology for combined air separation and fuel conversion in applications such as syngas production, oxidative coupling or oxy-combustion, with the promise of lower capital and operating costs, as well higher product selectivities than traditional technologies. The oxygen permeation rate through a given ITM is defined by the membrane temperature and oxygen chemical potential difference across it. Both of these parameters can be strongly influenced by thermochemical reactions occurring in the vicinity of the membrane, though in the literature they are often characterized in terms of the well mixed product stream at the reactor exit. This work presents the development of a novel ITM reactor for the fundamental investigation of the coupling between fuel conversion and oxygen permeation under well defined fluid dynamic and thermodynamic conditions, including provisions for spatially resolved, in-situ investigations. A planar, finite gap stagnation flow reactor with optical and probe access to the reaction zone is used to facilitate in-situ measurements and cross-validation with detailed numerical simulations. Using this novel reactor, baseline measurements are presented to elucidate the impact of the sweep gas fuel (CH4) fraction on the oxygen permeation and fuel conversion. In addition, the difference between well-mixed gas compositions measured at the reactor outlet and those measured in the vicinity of the membrane surface are discussed, demonstrating the unique utility of the reactor. © 2012 The Combustion Institute. Published by Elsevier Inc. All rights reserved.en
dc.description.sponsorshipThis work was supported by the King Fahd University of Petroleum and Minerals in Dhahran, Saudi Arabia, and the King Abdullah University of Science and Technology in Thuwal, Saudi Arabia. The support from Ceramatec Incorporated and Air Products and Chemicals is also most gratefully acknowledged.en
dc.publisherElsevier BVen
dc.subjectAir separationen
dc.subjectIon transport membrane reactoren
dc.subjectMixed conducting membraneen
dc.subjectOxy-combustionen
dc.subjectStagnation flowen
dc.titleA novel ion transport membrane reactor for fundamental investigations of oxygen permeation and oxy-combustion under reactive flow conditionsen
dc.typeArticleen
dc.identifier.journalProceedings of the Combustion Instituteen
dc.contributor.institutionMassachusetts Institute of Technology, Cambridge, United Statesen
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