Crude glycerol hydrogenolysis to bio-propylene glycol: effect of its impurities on activity, selectivity and stability
- Autores
- Gatti, Martín Nicolás; Pompeo, Francisco; Nichio, Nora Nancy; Santori, Gerardo Fabián
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The wide availability of crude glycerol and its low market price make this by-product of the biodiesel industry a promising raw material for obtaining high-value-added products through catalytic conversion processes. This work studied the effect of the composition of different industrial crude glycerol samples on the catalytic hydrogenolysis to 1,2-propylene glycol. A nickel catalyst supported on a silica–carbon composite was employed with this purpose. This catalyst proved to be active, selective to 1,2-propylene glycol and stable in the glycerol hydrogenolysis reaction in the liquid phase when analytical glycerol (99% purity) was employed. In order to determine the effect of crude glycerol composition on the activity, selectivity and stability of this catalyst, industrial crude glycerol samples were characterized by identifying and quantifying the impurities present in them (methanol, NaOH, NaCl and NaCOOH). Reaction tests were carried out with aqueous solutions of analytical glycerol, adding different impurities one by one in their respective concentration range. These results allowed for calculating activity factors starting from the ratio between the rate of glycerol consumption in the presence and in the absence of impurities. Finally, catalyst performance was evaluated employing the industrial crude glycerol samples, and a kinetic model based on the power law was proposed, which fitted the experimental results taking into account the effect of glycerol impurities. The fit allowed for predicting conversion values with an average error below 8%.
Centro de Investigación y Desarrollo en Ciencias Aplicadas - Materia
-
Química
biodiesel
crude glycerol
hydrogenolysis
1,2-propylen glycol
nickel catalysts - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/160994
Ver los metadatos del registro completo
id |
SEDICI_39d9e907e143b0e21168aa7df94d9f92 |
---|---|
oai_identifier_str |
oai:sedici.unlp.edu.ar:10915/160994 |
network_acronym_str |
SEDICI |
repository_id_str |
1329 |
network_name_str |
SEDICI (UNLP) |
spelling |
Crude glycerol hydrogenolysis to bio-propylene glycol: effect of its impurities on activity, selectivity and stabilityGatti, Martín NicolásPompeo, FranciscoNichio, Nora NancySantori, Gerardo FabiánQuímicabiodieselcrude glycerolhydrogenolysis1,2-propylen glycolnickel catalystsThe wide availability of crude glycerol and its low market price make this by-product of the biodiesel industry a promising raw material for obtaining high-value-added products through catalytic conversion processes. This work studied the effect of the composition of different industrial crude glycerol samples on the catalytic hydrogenolysis to 1,2-propylene glycol. A nickel catalyst supported on a silica–carbon composite was employed with this purpose. This catalyst proved to be active, selective to 1,2-propylene glycol and stable in the glycerol hydrogenolysis reaction in the liquid phase when analytical glycerol (99% purity) was employed. In order to determine the effect of crude glycerol composition on the activity, selectivity and stability of this catalyst, industrial crude glycerol samples were characterized by identifying and quantifying the impurities present in them (methanol, NaOH, NaCl and NaCOOH). Reaction tests were carried out with aqueous solutions of analytical glycerol, adding different impurities one by one in their respective concentration range. These results allowed for calculating activity factors starting from the ratio between the rate of glycerol consumption in the presence and in the absence of impurities. Finally, catalyst performance was evaluated employing the industrial crude glycerol samples, and a kinetic model based on the power law was proposed, which fitted the experimental results taking into account the effect of glycerol impurities. The fit allowed for predicting conversion values with an average error below 8%.Centro de Investigación y Desarrollo en Ciencias Aplicadas2023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/160994enginfo:eu-repo/semantics/altIdentifier/issn/2227-9717info:eu-repo/semantics/altIdentifier/doi/10.3390/pr11061731info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T11:14:10Zoai:sedici.unlp.edu.ar:10915/160994Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:14:10.27SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Crude glycerol hydrogenolysis to bio-propylene glycol: effect of its impurities on activity, selectivity and stability |
title |
Crude glycerol hydrogenolysis to bio-propylene glycol: effect of its impurities on activity, selectivity and stability |
spellingShingle |
Crude glycerol hydrogenolysis to bio-propylene glycol: effect of its impurities on activity, selectivity and stability Gatti, Martín Nicolás Química biodiesel crude glycerol hydrogenolysis 1,2-propylen glycol nickel catalysts |
title_short |
Crude glycerol hydrogenolysis to bio-propylene glycol: effect of its impurities on activity, selectivity and stability |
title_full |
Crude glycerol hydrogenolysis to bio-propylene glycol: effect of its impurities on activity, selectivity and stability |
title_fullStr |
Crude glycerol hydrogenolysis to bio-propylene glycol: effect of its impurities on activity, selectivity and stability |
title_full_unstemmed |
Crude glycerol hydrogenolysis to bio-propylene glycol: effect of its impurities on activity, selectivity and stability |
title_sort |
Crude glycerol hydrogenolysis to bio-propylene glycol: effect of its impurities on activity, selectivity and stability |
dc.creator.none.fl_str_mv |
Gatti, Martín Nicolás Pompeo, Francisco Nichio, Nora Nancy Santori, Gerardo Fabián |
author |
Gatti, Martín Nicolás |
author_facet |
Gatti, Martín Nicolás Pompeo, Francisco Nichio, Nora Nancy Santori, Gerardo Fabián |
author_role |
author |
author2 |
Pompeo, Francisco Nichio, Nora Nancy Santori, Gerardo Fabián |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Química biodiesel crude glycerol hydrogenolysis 1,2-propylen glycol nickel catalysts |
topic |
Química biodiesel crude glycerol hydrogenolysis 1,2-propylen glycol nickel catalysts |
dc.description.none.fl_txt_mv |
The wide availability of crude glycerol and its low market price make this by-product of the biodiesel industry a promising raw material for obtaining high-value-added products through catalytic conversion processes. This work studied the effect of the composition of different industrial crude glycerol samples on the catalytic hydrogenolysis to 1,2-propylene glycol. A nickel catalyst supported on a silica–carbon composite was employed with this purpose. This catalyst proved to be active, selective to 1,2-propylene glycol and stable in the glycerol hydrogenolysis reaction in the liquid phase when analytical glycerol (99% purity) was employed. In order to determine the effect of crude glycerol composition on the activity, selectivity and stability of this catalyst, industrial crude glycerol samples were characterized by identifying and quantifying the impurities present in them (methanol, NaOH, NaCl and NaCOOH). Reaction tests were carried out with aqueous solutions of analytical glycerol, adding different impurities one by one in their respective concentration range. These results allowed for calculating activity factors starting from the ratio between the rate of glycerol consumption in the presence and in the absence of impurities. Finally, catalyst performance was evaluated employing the industrial crude glycerol samples, and a kinetic model based on the power law was proposed, which fitted the experimental results taking into account the effect of glycerol impurities. The fit allowed for predicting conversion values with an average error below 8%. Centro de Investigación y Desarrollo en Ciencias Aplicadas |
description |
The wide availability of crude glycerol and its low market price make this by-product of the biodiesel industry a promising raw material for obtaining high-value-added products through catalytic conversion processes. This work studied the effect of the composition of different industrial crude glycerol samples on the catalytic hydrogenolysis to 1,2-propylene glycol. A nickel catalyst supported on a silica–carbon composite was employed with this purpose. This catalyst proved to be active, selective to 1,2-propylene glycol and stable in the glycerol hydrogenolysis reaction in the liquid phase when analytical glycerol (99% purity) was employed. In order to determine the effect of crude glycerol composition on the activity, selectivity and stability of this catalyst, industrial crude glycerol samples were characterized by identifying and quantifying the impurities present in them (methanol, NaOH, NaCl and NaCOOH). Reaction tests were carried out with aqueous solutions of analytical glycerol, adding different impurities one by one in their respective concentration range. These results allowed for calculating activity factors starting from the ratio between the rate of glycerol consumption in the presence and in the absence of impurities. Finally, catalyst performance was evaluated employing the industrial crude glycerol samples, and a kinetic model based on the power law was proposed, which fitted the experimental results taking into account the effect of glycerol impurities. The fit allowed for predicting conversion values with an average error below 8%. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/160994 |
url |
http://sedici.unlp.edu.ar/handle/10915/160994 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/2227-9717 info:eu-repo/semantics/altIdentifier/doi/10.3390/pr11061731 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
reponame_str |
SEDICI (UNLP) |
collection |
SEDICI (UNLP) |
instname_str |
Universidad Nacional de La Plata |
instacron_str |
UNLP |
institution |
UNLP |
repository.name.fl_str_mv |
SEDICI (UNLP) - Universidad Nacional de La Plata |
repository.mail.fl_str_mv |
alira@sedici.unlp.edu.ar |
_version_ |
1842260646660407296 |
score |
13.13397 |