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Article: Integrating chemical kinetics with CFD modeling for autothermal reforming of biogas

TitleIntegrating chemical kinetics with CFD modeling for autothermal reforming of biogas
Authors
KeywordsHydrogen
Methane
Pd-Ag membrane
Perovskite membranes
Issue Date2009
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijhydene
Citation
International Journal Of Hydrogen Energy, 2009, v. 34 n. 22, p. 9076-9086 How to Cite?
AbstractUsing biogas for hydrogen production via autothermal reforming (ATR) can potentially increase the energy conversion efficiency and correspondingly reduce environmental impact. The present study aimed to investigate the performance and characteristics of biogas ATR. A two-dimensional numerical model was developed based on the integration of computational fluid dynamics (CFD) and chemical kinetics. The mass transport, chemical reactions and heat transfer can be analyzed simultaneously in the porous domain. The results show that the presence of CO2 in the feedstock will reduce the performance of the biogas ATR. The effects of operating and feeding conditions were examined and the optimal conditions were identified. Operating the reformer with the steam-to-CH4 ratio (S/CH4) and air-to-CH4 ratio (A/CH4) equal to 0.5 and 2, respectively, can achieve high H2 concentration, while operation with S/CH4 and A/CH4 equal to 4.5 and 2, respectively, can achieve high energy efficiency. The results also show that using either H2 or O2 membrane in the reformer can enhance the biogas autothermal reforming performance by producing high concentration of H2 (40-65%) and solving the harmful hot spot problems. © 2009 Professor T. Nejat Veziroglu.
Persistent Identifierhttp://hdl.handle.net/10722/157037
ISSN
2015 Impact Factor: 3.205
2015 SCImago Journal Rankings: 1.330
ISI Accession Number ID
Funding AgencyGrant Number
HKU Strategic Research Fund
Funding Information:

The research work published in this paper is supported by the HKU Strategic Research Fund on Clean Energy and Seed Funding Programme.

References

 

DC FieldValueLanguage
dc.contributor.authorXuan, Jen_HK
dc.contributor.authorLeung, MKHen_HK
dc.contributor.authorLeung, DYCen_HK
dc.contributor.authorNi, Men_HK
dc.date.accessioned2012-08-08T08:45:03Z-
dc.date.available2012-08-08T08:45:03Z-
dc.date.issued2009en_HK
dc.identifier.citationInternational Journal Of Hydrogen Energy, 2009, v. 34 n. 22, p. 9076-9086en_HK
dc.identifier.issn0360-3199en_HK
dc.identifier.urihttp://hdl.handle.net/10722/157037-
dc.description.abstractUsing biogas for hydrogen production via autothermal reforming (ATR) can potentially increase the energy conversion efficiency and correspondingly reduce environmental impact. The present study aimed to investigate the performance and characteristics of biogas ATR. A two-dimensional numerical model was developed based on the integration of computational fluid dynamics (CFD) and chemical kinetics. The mass transport, chemical reactions and heat transfer can be analyzed simultaneously in the porous domain. The results show that the presence of CO2 in the feedstock will reduce the performance of the biogas ATR. The effects of operating and feeding conditions were examined and the optimal conditions were identified. Operating the reformer with the steam-to-CH4 ratio (S/CH4) and air-to-CH4 ratio (A/CH4) equal to 0.5 and 2, respectively, can achieve high H2 concentration, while operation with S/CH4 and A/CH4 equal to 4.5 and 2, respectively, can achieve high energy efficiency. The results also show that using either H2 or O2 membrane in the reformer can enhance the biogas autothermal reforming performance by producing high concentration of H2 (40-65%) and solving the harmful hot spot problems. © 2009 Professor T. Nejat Veziroglu.en_HK
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijhydeneen_HK
dc.relation.ispartofInternational Journal of Hydrogen Energyen_HK
dc.subjectHydrogenen_HK
dc.subjectMethaneen_HK
dc.subjectPd-Ag membraneen_HK
dc.subjectPerovskite membranesen_HK
dc.titleIntegrating chemical kinetics with CFD modeling for autothermal reforming of biogasen_HK
dc.typeArticleen_HK
dc.identifier.emailLeung, MKH:en_HK
dc.identifier.emailLeung, DYC: ycleung@hku.hken_HK
dc.identifier.authorityLeung, MKH=rp00148en_HK
dc.identifier.authorityLeung, DYC=rp00149en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.ijhydene.2009.09.002en_HK
dc.identifier.scopuseid_2-s2.0-71849110247en_HK
dc.identifier.hkuros171131-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-71849110247&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume34en_HK
dc.identifier.issue22en_HK
dc.identifier.spage9076en_HK
dc.identifier.epage9086en_HK
dc.identifier.isiWOS:000272639400005-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridXuan, J=25722402300en_HK
dc.identifier.scopusauthoridLeung, MKH=8862966600en_HK
dc.identifier.scopusauthoridLeung, DYC=7203002484en_HK
dc.identifier.scopusauthoridNi, M=9268339800en_HK
dc.identifier.citeulike5907284-

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