Evaluation of Cu/activated carbon and Cu/SiO2 aerosil catalysts on ethanol reform
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta scientiarum. Technology (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3046 |
Resumo: | New ways to produce hydrogen, thought to be the ideal fuel, have been studied and aim at a not-pollutant fuel. Ethanol reform is based on a simple reaction with many advantages for various countries, such as Brazil, where ethanol is produced on a large scale. Within a broader analysis, Cu/activated carbon catalysts with copper concentration of 5% w/w and Cu/SiO2 aerosil catalysts with copper concentration of 2 and 5% w/w have been prepared by wet impregnation. Decrease in programmed temperature was undertaken. Results of catalytic tests indicated that Cu/activated carbon catalysts probably contain sulfur and this explains why catalyst yields have been diminished. Occurrence may be explained because the results of the supported catalysts do not maintain a standard level and vary randomly with the surface area. Results of Cu/SiO2 aerosil catalysts show that a conversion reduction occurs with the rise of support surface area and that copper concentration do not cause great changes. |
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Evaluation of Cu/activated carbon and Cu/SiO2 aerosil catalysts on ethanol reformAvaliação de catalisadores Cu/carvão ativo e Cu/SiO2 aerosil na reforma do etanolcatalisadores suportadosprodução de hidrogênioreforma de etanol3.06.00.00-6 Engenharia QuímicaNew ways to produce hydrogen, thought to be the ideal fuel, have been studied and aim at a not-pollutant fuel. Ethanol reform is based on a simple reaction with many advantages for various countries, such as Brazil, where ethanol is produced on a large scale. Within a broader analysis, Cu/activated carbon catalysts with copper concentration of 5% w/w and Cu/SiO2 aerosil catalysts with copper concentration of 2 and 5% w/w have been prepared by wet impregnation. Decrease in programmed temperature was undertaken. Results of catalytic tests indicated that Cu/activated carbon catalysts probably contain sulfur and this explains why catalyst yields have been diminished. Occurrence may be explained because the results of the supported catalysts do not maintain a standard level and vary randomly with the surface area. Results of Cu/SiO2 aerosil catalysts show that a conversion reduction occurs with the rise of support surface area and that copper concentration do not cause great changes.Com o objetivo de se utilizar um combustível não poluente, novas formas para a produção de hidrogênio, combustível ideal, estão sendo estudadas. Uma delas é a reforma do etanol, uma reação simples e com vantagens para países como o Brasil, onde a produção do etanol ocorre em larga escala. Como parte de um estudo mais amplo, foram preparados catalisadores Cu/carvão ativo com 5% de cobre e Cu/SiO2 aerosil com 2 e 5% de cobre por impregnação úmida, que foram caracterizados por redução à temperatura programada. Os resultados dos testes catalíticos indicaram que os catalisadores Cu/carvão ativo provavelmente ainda contêm enxofre, que interferiu de forma negativa, tendo seus resultados variando de forma aleatória com a área superficial do suporte. Já para Cu/SiO2 aerosil observa-se que ocorre uma redução da conversão com o aumento da área superficial do suporte e que o teor de cobre utilizado não provoca grandes variações.Universidade Estadual De Maringá2008-05-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/304610.4025/actascitechnol.v22i0.3046Acta Scientiarum. Technology; Vol 22 (2000); 1213-1217Acta Scientiarum. Technology; v. 22 (2000); 1213-12171806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3046/2210Colman, Rita de CássiaAlmeida, Anderson Alex deMachado, Nádia Regina Camardo FernandesSouza, José Carlos deinfo:eu-repo/semantics/openAccess2024-05-17T13:02:53Zoai:periodicos.uem.br/ojs:article/3046Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2024-05-17T13:02:53Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Evaluation of Cu/activated carbon and Cu/SiO2 aerosil catalysts on ethanol reform Avaliação de catalisadores Cu/carvão ativo e Cu/SiO2 aerosil na reforma do etanol |
title |
Evaluation of Cu/activated carbon and Cu/SiO2 aerosil catalysts on ethanol reform |
spellingShingle |
Evaluation of Cu/activated carbon and Cu/SiO2 aerosil catalysts on ethanol reform Colman, Rita de Cássia catalisadores suportados produção de hidrogênio reforma de etanol 3.06.00.00-6 Engenharia Química |
title_short |
Evaluation of Cu/activated carbon and Cu/SiO2 aerosil catalysts on ethanol reform |
title_full |
Evaluation of Cu/activated carbon and Cu/SiO2 aerosil catalysts on ethanol reform |
title_fullStr |
Evaluation of Cu/activated carbon and Cu/SiO2 aerosil catalysts on ethanol reform |
title_full_unstemmed |
Evaluation of Cu/activated carbon and Cu/SiO2 aerosil catalysts on ethanol reform |
title_sort |
Evaluation of Cu/activated carbon and Cu/SiO2 aerosil catalysts on ethanol reform |
author |
Colman, Rita de Cássia |
author_facet |
Colman, Rita de Cássia Almeida, Anderson Alex de Machado, Nádia Regina Camardo Fernandes Souza, José Carlos de |
author_role |
author |
author2 |
Almeida, Anderson Alex de Machado, Nádia Regina Camardo Fernandes Souza, José Carlos de |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Colman, Rita de Cássia Almeida, Anderson Alex de Machado, Nádia Regina Camardo Fernandes Souza, José Carlos de |
dc.subject.por.fl_str_mv |
catalisadores suportados produção de hidrogênio reforma de etanol 3.06.00.00-6 Engenharia Química |
topic |
catalisadores suportados produção de hidrogênio reforma de etanol 3.06.00.00-6 Engenharia Química |
description |
New ways to produce hydrogen, thought to be the ideal fuel, have been studied and aim at a not-pollutant fuel. Ethanol reform is based on a simple reaction with many advantages for various countries, such as Brazil, where ethanol is produced on a large scale. Within a broader analysis, Cu/activated carbon catalysts with copper concentration of 5% w/w and Cu/SiO2 aerosil catalysts with copper concentration of 2 and 5% w/w have been prepared by wet impregnation. Decrease in programmed temperature was undertaken. Results of catalytic tests indicated that Cu/activated carbon catalysts probably contain sulfur and this explains why catalyst yields have been diminished. Occurrence may be explained because the results of the supported catalysts do not maintain a standard level and vary randomly with the surface area. Results of Cu/SiO2 aerosil catalysts show that a conversion reduction occurs with the rise of support surface area and that copper concentration do not cause great changes. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-05-13 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3046 10.4025/actascitechnol.v22i0.3046 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3046 |
identifier_str_mv |
10.4025/actascitechnol.v22i0.3046 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3046/2210 |
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 |
Universidade Estadual De Maringá |
publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Technology; Vol 22 (2000); 1213-1217 Acta Scientiarum. Technology; v. 22 (2000); 1213-1217 1806-2563 1807-8664 reponame:Acta scientiarum. Technology (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta scientiarum. Technology (Online) |
collection |
Acta scientiarum. Technology (Online) |
repository.name.fl_str_mv |
Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
||actatech@uem.br |
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1799315332565827584 |