Effect of syngas composition on hydrogen permeation through a Pd–Ag membrane
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.9/1982 |
Resumo: | Hydrogen separation from a syngas mixture with different compositions was studied by using a Pd–Ag membrane. The effect of temperature (from 300 C to 600 C) and of relative pressure (from 0.2 MPa to 0.5 MPa) was studied. In general, rises of both these parameters allowed increasing H2 permeate flux. The Pd–Ag membrane showed to have a great selectivity, as when inlet gas mixture contained different compositions of CO2, CO or CH4, these gases were never detected in membrane permeate side. However, when hydrogen content in inlet gas decreased, a significant reduction in H2 permeate flux was observed, especially when CO was present, probably due to the deposition of solid carbon in membrane surface by Boudouard reaction. It was also observed the formation of hydrocarbons, due to CO and H2 reactions. H2 permeances were calculated by application of Sieverts’ law and values between 4.9 10 4 and 1.5 10 3 mol m 2 s 1 Pa 0.5 were obtained. The highest value was obtained at 600 C. H2 permeances at different temperature followed Arrhenius’ equation. Thus, activation energies values between 11.5 kJ mol 1 and 14.0 kJ mol 1 were calculated. |
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Effect of syngas composition on hydrogen permeation through a Pd–Ag membranePd–Ag membraneHydrogen selectivitySyngasPermeanceHydrogen separation from a syngas mixture with different compositions was studied by using a Pd–Ag membrane. The effect of temperature (from 300 C to 600 C) and of relative pressure (from 0.2 MPa to 0.5 MPa) was studied. In general, rises of both these parameters allowed increasing H2 permeate flux. The Pd–Ag membrane showed to have a great selectivity, as when inlet gas mixture contained different compositions of CO2, CO or CH4, these gases were never detected in membrane permeate side. However, when hydrogen content in inlet gas decreased, a significant reduction in H2 permeate flux was observed, especially when CO was present, probably due to the deposition of solid carbon in membrane surface by Boudouard reaction. It was also observed the formation of hydrocarbons, due to CO and H2 reactions. H2 permeances were calculated by application of Sieverts’ law and values between 4.9 10 4 and 1.5 10 3 mol m 2 s 1 Pa 0.5 were obtained. The highest value was obtained at 600 C. H2 permeances at different temperature followed Arrhenius’ equation. Thus, activation energies values between 11.5 kJ mol 1 and 14.0 kJ mol 1 were calculated.ElsevierRepositório do LNEGPinto, FilomenaAndre, Rui N.Franco, CarlosCarolino, CarlosGulyurtlu, Ibrahim2013-09-16T15:46:50Z20132013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/1982engPinto, F.; André, R. Neto; Franco, C.; Carolino, C.; Gulyurtlu, I. Effect of syngas composition on hydrogen permeation through a Pd–Ag membrane. In: Fuel, 2013, vol. 103, p. 444-4530016-2361info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-04-09T05:56:36Zoai:repositorio.lneg.pt:10400.9/1982Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:34:50.271127Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Effect of syngas composition on hydrogen permeation through a Pd–Ag membrane |
title |
Effect of syngas composition on hydrogen permeation through a Pd–Ag membrane |
spellingShingle |
Effect of syngas composition on hydrogen permeation through a Pd–Ag membrane Pinto, Filomena Pd–Ag membrane Hydrogen selectivity Syngas Permeance |
title_short |
Effect of syngas composition on hydrogen permeation through a Pd–Ag membrane |
title_full |
Effect of syngas composition on hydrogen permeation through a Pd–Ag membrane |
title_fullStr |
Effect of syngas composition on hydrogen permeation through a Pd–Ag membrane |
title_full_unstemmed |
Effect of syngas composition on hydrogen permeation through a Pd–Ag membrane |
title_sort |
Effect of syngas composition on hydrogen permeation through a Pd–Ag membrane |
author |
Pinto, Filomena |
author_facet |
Pinto, Filomena Andre, Rui N. Franco, Carlos Carolino, Carlos Gulyurtlu, Ibrahim |
author_role |
author |
author2 |
Andre, Rui N. Franco, Carlos Carolino, Carlos Gulyurtlu, Ibrahim |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Repositório do LNEG |
dc.contributor.author.fl_str_mv |
Pinto, Filomena Andre, Rui N. Franco, Carlos Carolino, Carlos Gulyurtlu, Ibrahim |
dc.subject.por.fl_str_mv |
Pd–Ag membrane Hydrogen selectivity Syngas Permeance |
topic |
Pd–Ag membrane Hydrogen selectivity Syngas Permeance |
description |
Hydrogen separation from a syngas mixture with different compositions was studied by using a Pd–Ag membrane. The effect of temperature (from 300 C to 600 C) and of relative pressure (from 0.2 MPa to 0.5 MPa) was studied. In general, rises of both these parameters allowed increasing H2 permeate flux. The Pd–Ag membrane showed to have a great selectivity, as when inlet gas mixture contained different compositions of CO2, CO or CH4, these gases were never detected in membrane permeate side. However, when hydrogen content in inlet gas decreased, a significant reduction in H2 permeate flux was observed, especially when CO was present, probably due to the deposition of solid carbon in membrane surface by Boudouard reaction. It was also observed the formation of hydrocarbons, due to CO and H2 reactions. H2 permeances were calculated by application of Sieverts’ law and values between 4.9 10 4 and 1.5 10 3 mol m 2 s 1 Pa 0.5 were obtained. The highest value was obtained at 600 C. H2 permeances at different temperature followed Arrhenius’ equation. Thus, activation energies values between 11.5 kJ mol 1 and 14.0 kJ mol 1 were calculated. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-09-16T15:46:50Z 2013 2013-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.9/1982 |
url |
http://hdl.handle.net/10400.9/1982 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pinto, F.; André, R. Neto; Franco, C.; Carolino, C.; Gulyurtlu, I. Effect of syngas composition on hydrogen permeation through a Pd–Ag membrane. In: Fuel, 2013, vol. 103, p. 444-453 0016-2361 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799130212944838656 |