SELECTIVE HYDROGENOLYSIS OF GLYCEROL TO PROPYLENE GLYCOL IN A CONTINUOUS FLOW TRICKLE BED REACTOR USING COPPER CHROMITE AND Cu/Al2O3 CATALYSTS

The glycerol hydrogenolysis reaction was performed in a continuous flow trickle bed reactor using a water glycerol feed and both copper chromite and Cu/Al2O3 catalysts. The commercial copper chromite had a higher activity than the laboratory prepared Cu/Al2O3 and was used for most of the tests. Prop...

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Detalles Bibliográficos
Autores: Sepulveda, Jorge, Manuale, Debora, Santiago, Lucia, Carrara, Nicolas, Torres, Gerardo, Vera, Carlos, Goncalves, Maraisa [UNIFESP], Carvalho, Wagner, Mandelli, Dalmo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:Brasil
Institución:Universidade Federal de São Paulo (UNIFESP)
Repositorio:Repositório Institucional da UNIFESP
Idioma:inglés
OAI Identifier:oai:repositorio.unifesp.br:11600/54556
Acceso en línea:http://dx.doi.org/10.21577/0100-4042.20170018
https://repositorio.unifesp.br/handle/11600/54556
Access Level:acceso abierto
Palabra clave:hydrogenolysis
copper chromite
glycerol conversion
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spelling SELECTIVE HYDROGENOLYSIS OF GLYCEROL TO PROPYLENE GLYCOL IN A CONTINUOUS FLOW TRICKLE BED REACTOR USING COPPER CHROMITE AND Cu/Al2O3 CATALYSTShydrogenolysiscopper chromiteglycerol conversionThe glycerol hydrogenolysis reaction was performed in a continuous flow trickle bed reactor using a water glycerol feed and both copper chromite and Cu/Al2O3 catalysts. The commercial copper chromite had a higher activity than the laboratory prepared Cu/Al2O3 and was used for most of the tests. Propylene glycol was the main product with both catalysts, acetol being the main by-product. It was found that temperature is the main variable influencing the conversion of glycerol. When the state of the glycerol-water reactant mixture was completely liquid, at temperatures lower than 190 degrees C, conversion was low and deactivation was observed. At reaction temperatures of 210-230 degrees C the conversion of glycerol was complete and the selectivity to propylene glycol was stable at about 60-80% all throughout the reaction time span of 10 h, regardless of the hydrogen pressure level (1 to 20 atm). These optimal values could not be improved significantly by using other different reaction conditions or increasing the catalyst acidity. At higher temperatures (245-250 degrees C) the conversion was also 100%. Under reaction conditions at which copper chromite suffered deactivation, light by-products and surface deposits were formed. The deposits could be completely burned at 250 degrees C and the catalyst activity fully recovered.UNL, CONICET, INCAPE, Inst Invest Catalisis & Petroquim, Santiago Estero 2654, RA-3000 Santa Fe, ArgentinaUniv Fed ABC, Ctr Ciencias Nat & Humanas, Rua Santa Adelia 166, BR-09210070 Santo Andre, SP, BrazilUniv Fed Sao Paulo, Inst Ciencias & Tecnol, Rua Talim 330, Sao Jose Dos Campos, SP, BrazilUniv Fed Sao Paulo, Inst Ciencias & Tecnol, Rua Talim 330, Sao Jose Dos Campos, SP, BrazilWeb of ScienceCAPES (Brazil)MinCyT (Argentina)CAPES/MINCyTFAPESPCAPES/MINCyT: 208/12FAPESP: 2011/22264-4Soc Brasileira Quimica2020-07-13T11:53:21Z2020-07-13T11:53:21Z2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion371-377application/pdfhttp://dx.doi.org/10.21577/0100-4042.20170018Quimica Nova. Sao Paulo, v. 40, n. 4, p. 371-377, 2017.10.21577/0100-4042.20170018S0100-40422017000400371.pdf0100-4042S0100-40422017000400371https://repositorio.unifesp.br/handle/11600/54556WOS:000403456300002ark:/48912/001300001zj3nengQuimica NovaSao Pauloinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESPSepulveda, JorgeManuale, DeboraSantiago, LuciaCarrara, NicolasTorres, GerardoVera, CarlosGoncalves, Maraisa [UNIFESP]Carvalho, WagnerMandelli, Dalmo2024-08-01T15:11:34Zoai:repositorio.unifesp.br:11600/54556Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestbiblioteca.csp@unifesp.bropendoar:34652024-08-01T15:11:34Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false
dc.title.none.fl_str_mv SELECTIVE HYDROGENOLYSIS OF GLYCEROL TO PROPYLENE GLYCOL IN A CONTINUOUS FLOW TRICKLE BED REACTOR USING COPPER CHROMITE AND Cu/Al2O3 CATALYSTS
title SELECTIVE HYDROGENOLYSIS OF GLYCEROL TO PROPYLENE GLYCOL IN A CONTINUOUS FLOW TRICKLE BED REACTOR USING COPPER CHROMITE AND Cu/Al2O3 CATALYSTS
spellingShingle SELECTIVE HYDROGENOLYSIS OF GLYCEROL TO PROPYLENE GLYCOL IN A CONTINUOUS FLOW TRICKLE BED REACTOR USING COPPER CHROMITE AND Cu/Al2O3 CATALYSTS
Sepulveda, Jorge
hydrogenolysis
copper chromite
glycerol conversion
title_short SELECTIVE HYDROGENOLYSIS OF GLYCEROL TO PROPYLENE GLYCOL IN A CONTINUOUS FLOW TRICKLE BED REACTOR USING COPPER CHROMITE AND Cu/Al2O3 CATALYSTS
title_full SELECTIVE HYDROGENOLYSIS OF GLYCEROL TO PROPYLENE GLYCOL IN A CONTINUOUS FLOW TRICKLE BED REACTOR USING COPPER CHROMITE AND Cu/Al2O3 CATALYSTS
title_fullStr SELECTIVE HYDROGENOLYSIS OF GLYCEROL TO PROPYLENE GLYCOL IN A CONTINUOUS FLOW TRICKLE BED REACTOR USING COPPER CHROMITE AND Cu/Al2O3 CATALYSTS
title_full_unstemmed SELECTIVE HYDROGENOLYSIS OF GLYCEROL TO PROPYLENE GLYCOL IN A CONTINUOUS FLOW TRICKLE BED REACTOR USING COPPER CHROMITE AND Cu/Al2O3 CATALYSTS
title_sort SELECTIVE HYDROGENOLYSIS OF GLYCEROL TO PROPYLENE GLYCOL IN A CONTINUOUS FLOW TRICKLE BED REACTOR USING COPPER CHROMITE AND Cu/Al2O3 CATALYSTS
dc.creator.none.fl_str_mv Sepulveda, Jorge
Manuale, Debora
Santiago, Lucia
Carrara, Nicolas
Torres, Gerardo
Vera, Carlos
Goncalves, Maraisa [UNIFESP]
Carvalho, Wagner
Mandelli, Dalmo
author Sepulveda, Jorge
author_facet Sepulveda, Jorge
Manuale, Debora
Santiago, Lucia
Carrara, Nicolas
Torres, Gerardo
Vera, Carlos
Goncalves, Maraisa [UNIFESP]
Carvalho, Wagner
Mandelli, Dalmo
author_role author
author2 Manuale, Debora
Santiago, Lucia
Carrara, Nicolas
Torres, Gerardo
Vera, Carlos
Goncalves, Maraisa [UNIFESP]
Carvalho, Wagner
Mandelli, Dalmo
author2_role author
author
author
author
author
author
author
author
dc.subject.por.fl_str_mv hydrogenolysis
copper chromite
glycerol conversion
topic hydrogenolysis
copper chromite
glycerol conversion
description The glycerol hydrogenolysis reaction was performed in a continuous flow trickle bed reactor using a water glycerol feed and both copper chromite and Cu/Al2O3 catalysts. The commercial copper chromite had a higher activity than the laboratory prepared Cu/Al2O3 and was used for most of the tests. Propylene glycol was the main product with both catalysts, acetol being the main by-product. It was found that temperature is the main variable influencing the conversion of glycerol. When the state of the glycerol-water reactant mixture was completely liquid, at temperatures lower than 190 degrees C, conversion was low and deactivation was observed. At reaction temperatures of 210-230 degrees C the conversion of glycerol was complete and the selectivity to propylene glycol was stable at about 60-80% all throughout the reaction time span of 10 h, regardless of the hydrogen pressure level (1 to 20 atm). These optimal values could not be improved significantly by using other different reaction conditions or increasing the catalyst acidity. At higher temperatures (245-250 degrees C) the conversion was also 100%. Under reaction conditions at which copper chromite suffered deactivation, light by-products and surface deposits were formed. The deposits could be completely burned at 250 degrees C and the catalyst activity fully recovered.
publishDate 2017
dc.date.none.fl_str_mv 2017
2020-07-13T11:53:21Z
2020-07-13T11:53:21Z
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://dx.doi.org/10.21577/0100-4042.20170018
Quimica Nova. Sao Paulo, v. 40, n. 4, p. 371-377, 2017.
10.21577/0100-4042.20170018
S0100-40422017000400371.pdf
0100-4042
S0100-40422017000400371
https://repositorio.unifesp.br/handle/11600/54556
WOS:000403456300002
dc.identifier.dark.fl_str_mv ark:/48912/001300001zj3n
url http://dx.doi.org/10.21577/0100-4042.20170018
https://repositorio.unifesp.br/handle/11600/54556
identifier_str_mv Quimica Nova. Sao Paulo, v. 40, n. 4, p. 371-377, 2017.
10.21577/0100-4042.20170018
S0100-40422017000400371.pdf
0100-4042
S0100-40422017000400371
WOS:000403456300002
ark:/48912/001300001zj3n
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Quimica Nova
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 371-377
application/pdf
dc.coverage.none.fl_str_mv Sao Paulo
dc.publisher.none.fl_str_mv Soc Brasileira Quimica
publisher.none.fl_str_mv Soc Brasileira Quimica
dc.source.none.fl_str_mv reponame:Repositório Institucional da UNIFESP
instname:Universidade Federal de São Paulo (UNIFESP)
instacron:UNIFESP
instname_str Universidade Federal de São Paulo (UNIFESP)
instacron_str UNIFESP
institution UNIFESP
reponame_str Repositório Institucional da UNIFESP
collection Repositório Institucional da UNIFESP
repository.name.fl_str_mv Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)
repository.mail.fl_str_mv biblioteca.csp@unifesp.br
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score 15.301603

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