Catalytic dehydration of ethanol to ethylene over alkali-Treated HZSM-5 zeolites

Detalhes bibliográficos
Autor(a) principal: Sheng,Qingtao
Data de Publicação: 2014
Outros Autores: Guo,Shaoqing, Ling,Kaicheng, Zhao,Liangfu
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000800007
Resumo: The catalytic performance of alkali-treated HZSM-5 catalysts was investigated in a continuous fixed-bed microreactor. The properties of the parent and modified HZSM-5 catalysts were characterized by X-ray diffraction (XRD), inductively coupled plasma atomic emission spectroscopy (ICP-AES), N2 adsorption and temperature programmed desorption of NH3 (NH3-TPD). The results show that the alkali treatment is a suitable method to modify the HZSM-5 catalyst for ethanol dehydration to ethylene. The HZSM-5 catalyst with 0.4 mol L-1 NaOH shows high activity and good stability. The improved catalytic performances of alkali-treated catalysts are mainly attributed to the created mesopores and the decreased number of strong acid sites during the alkali treatment.
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spelling Catalytic dehydration of ethanol to ethylene over alkali-Treated HZSM-5 zeolitesHZSM-5alkali treatmentethanol dehydrationdesilicationThe catalytic performance of alkali-treated HZSM-5 catalysts was investigated in a continuous fixed-bed microreactor. The properties of the parent and modified HZSM-5 catalysts were characterized by X-ray diffraction (XRD), inductively coupled plasma atomic emission spectroscopy (ICP-AES), N2 adsorption and temperature programmed desorption of NH3 (NH3-TPD). The results show that the alkali treatment is a suitable method to modify the HZSM-5 catalyst for ethanol dehydration to ethylene. The HZSM-5 catalyst with 0.4 mol L-1 NaOH shows high activity and good stability. The improved catalytic performances of alkali-treated catalysts are mainly attributed to the created mesopores and the decreased number of strong acid sites during the alkali treatment.Sociedade Brasileira de Química2014-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000800007Journal of the Brazilian Chemical Society v.25 n.8 2014reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20140118info:eu-repo/semantics/openAccessSheng,QingtaoGuo,ShaoqingLing,KaichengZhao,Liangfueng2014-08-04T00:00:00Zoai:scielo:S0103-50532014000800007Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2014-08-04T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Catalytic dehydration of ethanol to ethylene over alkali-Treated HZSM-5 zeolites
title Catalytic dehydration of ethanol to ethylene over alkali-Treated HZSM-5 zeolites
spellingShingle Catalytic dehydration of ethanol to ethylene over alkali-Treated HZSM-5 zeolites
Sheng,Qingtao
HZSM-5
alkali treatment
ethanol dehydration
desilication
title_short Catalytic dehydration of ethanol to ethylene over alkali-Treated HZSM-5 zeolites
title_full Catalytic dehydration of ethanol to ethylene over alkali-Treated HZSM-5 zeolites
title_fullStr Catalytic dehydration of ethanol to ethylene over alkali-Treated HZSM-5 zeolites
title_full_unstemmed Catalytic dehydration of ethanol to ethylene over alkali-Treated HZSM-5 zeolites
title_sort Catalytic dehydration of ethanol to ethylene over alkali-Treated HZSM-5 zeolites
author Sheng,Qingtao
author_facet Sheng,Qingtao
Guo,Shaoqing
Ling,Kaicheng
Zhao,Liangfu
author_role author
author2 Guo,Shaoqing
Ling,Kaicheng
Zhao,Liangfu
author2_role author
author
author
dc.contributor.author.fl_str_mv Sheng,Qingtao
Guo,Shaoqing
Ling,Kaicheng
Zhao,Liangfu
dc.subject.por.fl_str_mv HZSM-5
alkali treatment
ethanol dehydration
desilication
topic HZSM-5
alkali treatment
ethanol dehydration
desilication
description The catalytic performance of alkali-treated HZSM-5 catalysts was investigated in a continuous fixed-bed microreactor. The properties of the parent and modified HZSM-5 catalysts were characterized by X-ray diffraction (XRD), inductively coupled plasma atomic emission spectroscopy (ICP-AES), N2 adsorption and temperature programmed desorption of NH3 (NH3-TPD). The results show that the alkali treatment is a suitable method to modify the HZSM-5 catalyst for ethanol dehydration to ethylene. The HZSM-5 catalyst with 0.4 mol L-1 NaOH shows high activity and good stability. The improved catalytic performances of alkali-treated catalysts are mainly attributed to the created mesopores and the decreased number of strong acid sites during the alkali treatment.
publishDate 2014
dc.date.none.fl_str_mv 2014-08-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000800007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000800007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/0103-5053.20140118
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.25 n.8 2014
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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