An environmental friendly dopant for the high-temperature shift catalysts

Detalhes bibliográficos
Autor(a) principal: Araújo, Genira Carneiro de
Data de Publicação: 2000
Outros Autores: Varela, Maria do Carmo Rangel Santos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/7281
Resumo: p.201–207
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spelling Araújo, Genira Carneiro deVarela, Maria do Carmo Rangel SantosAraújo, Genira Carneiro deVarela, Maria do Carmo Rangel Santos2012-11-26T19:55:23Z2000-110920-5861http://www.repositorio.ufba.br/ri/handle/ri/7281v. 62, n. 2-3p.201–207The high-temperature shift (HTS) reaction is an important step in industrial processes and gas purification. Although the catalyst shows a stable performance, the search for non-toxic systems is much needed, especially due to environmental restrictions related to chromium compounds. In this work, the performance of aluminum-doped catalysts with low amounts of copper was investigated, because of the role of copper on decreasing the surface area of the catalysts based on iron oxides. Samples were prepared by precipitation methods, characterized by several techniques and evaluated under different conditions, in order to find operational conditions more effective in the use of energy. The addition of small amounts of copper to aluminum-doped hematite leads to better catalytic properties. Likely, copper behaves as a structural promoter while aluminum is a textural one. The catalyst can work at more severe conditions than the industrial condition, that is, lower steam to gas molar ratio (S/G=0.4) and at a lower temperature (350°C). In addition, it can be easily handled and discarded without any damage to the environment or human beings.Submitted by Texeira Ana (atanateixeira@gmail.com) on 2012-11-26T19:55:23Z No. of bitstreams: 1 Araújo.pdf: 98742 bytes, checksum: ae672c8c4bafffd163a3fa815c11d0eb (MD5)Made available in DSpace on 2012-11-26T19:55:23Z (GMT). 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dc.title.pt_BR.fl_str_mv An environmental friendly dopant for the high-temperature shift catalysts
dc.title.alternative.pt_BR.fl_str_mv Catalysis Today
title An environmental friendly dopant for the high-temperature shift catalysts
spellingShingle An environmental friendly dopant for the high-temperature shift catalysts
Araújo, Genira Carneiro de
Environmental friendly dopant
Shift reaction
Magnetite
title_short An environmental friendly dopant for the high-temperature shift catalysts
title_full An environmental friendly dopant for the high-temperature shift catalysts
title_fullStr An environmental friendly dopant for the high-temperature shift catalysts
title_full_unstemmed An environmental friendly dopant for the high-temperature shift catalysts
title_sort An environmental friendly dopant for the high-temperature shift catalysts
author Araújo, Genira Carneiro de
author_facet Araújo, Genira Carneiro de
Varela, Maria do Carmo Rangel Santos
author_role author
author2 Varela, Maria do Carmo Rangel Santos
author2_role author
dc.contributor.author.fl_str_mv Araújo, Genira Carneiro de
Varela, Maria do Carmo Rangel Santos
Araújo, Genira Carneiro de
Varela, Maria do Carmo Rangel Santos
dc.subject.por.fl_str_mv Environmental friendly dopant
Shift reaction
Magnetite
topic Environmental friendly dopant
Shift reaction
Magnetite
description p.201–207
publishDate 2000
dc.date.issued.fl_str_mv 2000-11
dc.date.accessioned.fl_str_mv 2012-11-26T19:55:23Z
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://www.repositorio.ufba.br/ri/handle/ri/7281
dc.identifier.issn.none.fl_str_mv 0920-5861
dc.identifier.number.pt_BR.fl_str_mv v. 62, n. 2-3
identifier_str_mv 0920-5861
v. 62, n. 2-3
url http://www.repositorio.ufba.br/ri/handle/ri/7281
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/S0920-5861(00)00421-1
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
instacron:UFBA
instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
institution UFBA
reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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