| 1. Identificação | ||||
| Tipo de Referência | Artigo em Revista Científica (Journal Article) | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identificador | 8JMKD3MGP3W34P/3KLS64E | |||
| Repositório | sid.inpe.br/mtc-m21b/2015/11.27.12.47 (acesso restrito) | |||
| Última Atualização | 2015:11.27.12.48.00 (UTC) administrator | |||
| Repositório de Metadados | sid.inpe.br/mtc-m21b/2015/11.27.12.47.08 | |||
| Última Atualização dos Metadados | 2018:06.04.02.55.53 (UTC) administrator | |||
| DOI | 10.3303/CET1543156 | |||
| ISSN | 1974-9791 | |||
| Chave de Citação | OliveiraValeViei:2015:WaGaSh | |||
| Título | Water gas shift reaction on copper catalysts supported on alumina and carbon nanofibers  | |||
| Ano | 2015 | |||
| Data de Acesso | 28 abr. 2024 | |||
| Tipo de Trabalho | journal article | |||
| Tipo Secundário | PRE PI pi | |||
| Número de Arquivos | 1 | |||
| Tamanho | 964 KiB | |||
| 2. Contextualização | ||||
| Autor | 1 Oliveira, N. M. B. 2 Valença, G. P. 3 Vieira, Ricardo | |||
| Grupo | 1 2 3 LCP-CTE-INPE-MCTI-GOV-BR | |||
| Afiliação | 1 Universidade Estadual de Campinas (UNICAMP) 2 Universidade Estadual de Campinas (UNICAMP) 3 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Endereço de e-Mail do Autor | 1 2 3 rvieira@lcp.inpe.br | |||
| Revista | Chemical Engineering Transactions | |||
| Volume | 43 | |||
| Páginas | 931-936 | |||
| Histórico (UTC) | 2015-11-27 12:47:08 :: simone -> administrator :: 2018-06-04 02:55:53 :: administrator -> simone :: 2015 | |||
| 3. Conteúdo e estrutura | ||||
| É a matriz ou uma cópia? | é a matriz | |||
| Estágio do Conteúdo | concluido | |||
| Transferível | 1 | |||
| Tipo do Conteúdo | External Contribution | |||
| Tipo de Versão | publisher | |||
| Resumo | The water gas shift (WGS) reaction is widely used in the production of hydrogen, by the conversion of carbon monoxide into CO2 and of water into H2. In the present work, copper catalysts supported on alumina or carbon nanofibers (CNF) were used to study the WGS reaction. The catalysts were prepared by impregnating copper nitrate in the supports, with a nominal mass metallic content of 5%. The solids were dried, calcined and characterized by X-Ray Diffraction (XRD), nitrogen adsorption, nitrous oxide chemisorption and Inductively Coupled Plasma Optical Emission Spectrometry (ICP OES). After calcination, the catalysts were loaded into the reactor, reduced and then tested in the WGS reaction at medium temperatures (398-573 K). The gases from reactor were analyzed online by Gas Chromatography (GC). The products were CO2, H2 and, probably, small amounts of coke. The CO partial pressure varied between 4.6 and 6.6 kPa, and the water partial pressure varied between 20.0 and 47.4 kPa. Among the catalysts tested, 5% Cu/Al2O2 was the most active under all conditions used in this work, due to the high dispersion of the metal particles on the support. The most favorable reaction conditions for this catalyst were pH2O 0 = 38.6 kPa and pCO 0 = 5.3 kPa (H2O:CO molar ratio of 7.3), for all reaction temperatures used in this work. Cu/CNF had low CO conversions, due to the support hydrophobicity. In case of this catalyst, the most favorable conditions were pH2O 0 = 20.0 kPa and pCO 0 = 6.6 kPa, corresponding to a H2O:CO molar ratio of 3.1. The apparent activation energy calculated for the WGS reaction was 86.1 kJ mol-1 for 5%Cu/Al2O and 69.8 kJ mol-1 for 5%Cu/CNF. For Cu/CNF a co-operative redox reaction mechanism was proposed, and apparent reaction orders were 0.64 in relation to CO and approximately zero in relation to water. | |||
| Área | COMB | |||
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABCP > Water gas shift... | |||
| Conteúdo da Pasta doc | acessar | |||
| Conteúdo da Pasta source | não têm arquivos | |||
| Conteúdo da Pasta agreement |
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| 4. Condições de acesso e uso | ||||
| Idioma | en | |||
| Arquivo Alvo | 2015_oliveira.pdf | |||
| Grupo de Usuários | administrator simone | |||
| Grupo de Leitores | administrator simone | |||
| Visibilidade | shown | |||
| Permissão de Leitura | deny from all and allow from 150.163 | |||
| Permissão de Atualização | não transferida | |||
| 5. Fontes relacionadas | ||||
| Repositório Espelho | urlib.net/www/2011/03.29.20.55 | |||
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ET38CH | |||
| Lista de Itens Citando | sid.inpe.br/bibdigital/2013/09.25.23.49 1 | |||
| Divulgação | WEBSCI; COMPENDEX; SCOPUS. | |||
| Acervo Hospedeiro | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notas | ||||
| Campos Vazios | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn keywords label lineage mark month nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project resumeid rightsholder schedulinginformation secondarydate secondarykey secondarymark session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Controle da descrição | ||||
| e-Mail (login) | simone | |||
| atualizar | ||||