SELECTIVE HYDROGENOLYSIS OF GLYCEROL TO PROPYLENE GLYCOL IN A CONTINUOUS FLOW TRICKLE BED REACTOR USING COPPER CHROMITE AND Cu/Al2O3 CATALYSTS
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNIFESP |
Texto Completo: | https://repositorio.unifesp.br/handle/11600/54556 http://dx.doi.org/10.21577/0100-4042.20170018 |
Resumo: | 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. |
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Sepulveda, JorgeManuale, DeboraSantiago, LuciaCarrara, NicolasTorres, GerardoVera, CarlosGoncalves, Maraisa [UNIFESP]Carvalho, WagnerMandelli, Dalmo2020-07-13T11:53:21Z2020-07-13T11:53:21Z2017Quimica Nova. Sao Paulo, v. 40, n. 4, p. 371-377, 2017.0100-4042https://repositorio.unifesp.br/handle/11600/54556http://dx.doi.org/10.21577/0100-4042.20170018S0100-40422017000400371.pdfS0100-4042201700040037110.21577/0100-4042.20170018WOS:000403456300002The 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.CAPES (Brazil)MinCyT (Argentina)CAPES/MINCyTFAPESPUNL, 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, BrazilCAPES/MINCyT: 208/12FAPESP: 2011/22264-4Web of Science371-377engSoc Brasileira QuimicaQuimica Novahydrogenolysiscopper chromiteglycerol conversionSELECTIVE HYDROGENOLYSIS OF GLYCEROL TO PROPYLENE GLYCOL IN A CONTINUOUS FLOW TRICKLE BED REACTOR USING COPPER CHROMITE AND Cu/Al2O3 CATALYSTSinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleSao Paulo404info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESPORIGINALS0100-40422017000400371.pdfapplication/pdf827717${dspace.ui.url}/bitstream/11600/54556/1/S0100-40422017000400371.pdfe93997d569fd0477242e0b16b4617b7cMD51open accessTEXTS0100-40422017000400371.pdf.txtS0100-40422017000400371.pdf.txtExtracted texttext/plain34680${dspace.ui.url}/bitstream/11600/54556/8/S0100-40422017000400371.pdf.txtc7242c599d36db57d5aaf218e5379818MD58open accessTHUMBNAILS0100-40422017000400371.pdf.jpgS0100-40422017000400371.pdf.jpgIM Thumbnailimage/jpeg7110${dspace.ui.url}/bitstream/11600/54556/10/S0100-40422017000400371.pdf.jpgd9509269d2853979adadcff57bad0cb7MD510open access11600/545562023-06-05 19:07:43.517open accessoai:repositorio.unifesp.br:11600/54556Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestopendoar:34652023-06-05T22:07:43Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false |
dc.title.en.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 |
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.contributor.author.fl_str_mv |
Sepulveda, Jorge Manuale, Debora Santiago, Lucia Carrara, Nicolas Torres, Gerardo Vera, Carlos Goncalves, Maraisa [UNIFESP] Carvalho, Wagner Mandelli, Dalmo |
dc.subject.eng.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.issued.fl_str_mv |
2017 |
dc.date.accessioned.fl_str_mv |
2020-07-13T11:53:21Z |
dc.date.available.fl_str_mv |
2020-07-13T11:53:21Z |
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.citation.fl_str_mv |
Quimica Nova. Sao Paulo, v. 40, n. 4, p. 371-377, 2017. |
dc.identifier.uri.fl_str_mv |
https://repositorio.unifesp.br/handle/11600/54556 http://dx.doi.org/10.21577/0100-4042.20170018 |
dc.identifier.issn.none.fl_str_mv |
0100-4042 |
dc.identifier.file.none.fl_str_mv |
S0100-40422017000400371.pdf |
dc.identifier.scielo.none.fl_str_mv |
S0100-40422017000400371 |
dc.identifier.doi.none.fl_str_mv |
10.21577/0100-4042.20170018 |
dc.identifier.wos.none.fl_str_mv |
WOS:000403456300002 |
identifier_str_mv |
Quimica Nova. Sao Paulo, v. 40, n. 4, p. 371-377, 2017. 0100-4042 S0100-40422017000400371.pdf S0100-40422017000400371 10.21577/0100-4042.20170018 WOS:000403456300002 |
url |
https://repositorio.unifesp.br/handle/11600/54556 http://dx.doi.org/10.21577/0100-4042.20170018 |
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eng |
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dc.format.none.fl_str_mv |
371-377 |
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Sao Paulo |
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Soc Brasileira Quimica |
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Soc Brasileira Quimica |
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