Adsorption of Aromatics from Base Oil over Polymeric Resins. Equilibrium and kinetics.

Autores
Busto, Mariana; Sepulveda Flores, Jorge Humberto; Carrara, Nicolás Ricardo; Vera, Carlos Roman
Año de publicación
2015
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Adsorption of aromatic molecules from base oil over an acid resin (Amberlyst 15w) was studied, with a focus on reducing the aromatic content to that of a white mineral oil. It was found that the adsorption capacity of the resin was low. At saturation in the best condition the adsorption capacity corresponded to 10% de acid capacity. The effects of dilution, temperature and adsorption time were studied.In the absence of a diluting solvent the isotherm was unfavorable and the adsorption rate was low with a pseudo first order constant of about 0.1 h-1. Dilution of the oil with n-hexane had beneficial effects on the adsorption capacity, the adsorption rate and the yield of refined oil. The 1:1 (vol:vol) dilution was found to be optimal. Kinetic data were better explained by a model of dominant intraparticle diffusion, the adsorbate load being proportional to the square of the adsorption time. Dilution with n-hexane was thought to decrease the viscosity with a proportional increase of the diffusivity, and a decrease of the chemical affinity of the oil matrix.Estimations of the oil purity and refined oil yield after a series of equilibrium stages indicated that 3 stages with an adsorbent-to-oil ratio of 0.5 (g g-1) and a 1:1 dilution in nhexane could refine the studied base oil (initial aromatics content 0.136 mmol g-1) to a white mineral oil of food grade, with a yield of about 60%. Removal of the solvent was considered easy given the high volatility of n-hexane as compared to the oil.
Fil: Busto, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Sepulveda Flores, Jorge Humberto. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Carrara, Nicolás Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Vera, Carlos Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Materia
Adsorption
Polymeric Resins
Aromatics
Kinetics
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/34990
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Adsorption of Aromatics from Base Oil over Polymeric Resins. Equilibrium and kinetics.Busto, MarianaSepulveda Flores, Jorge HumbertoCarrara, Nicolás RicardoVera, Carlos RomanAdsorptionPolymeric ResinsAromaticsKineticshttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Adsorption of aromatic molecules from base oil over an acid resin (Amberlyst 15w) was studied, with a focus on reducing the aromatic content to that of a white mineral oil. It was found that the adsorption capacity of the resin was low. At saturation in the best condition the adsorption capacity corresponded to 10% de acid capacity. The effects of dilution, temperature and adsorption time were studied.In the absence of a diluting solvent the isotherm was unfavorable and the adsorption rate was low with a pseudo first order constant of about 0.1 h-1. Dilution of the oil with n-hexane had beneficial effects on the adsorption capacity, the adsorption rate and the yield of refined oil. The 1:1 (vol:vol) dilution was found to be optimal. Kinetic data were better explained by a model of dominant intraparticle diffusion, the adsorbate load being proportional to the square of the adsorption time. Dilution with n-hexane was thought to decrease the viscosity with a proportional increase of the diffusivity, and a decrease of the chemical affinity of the oil matrix.Estimations of the oil purity and refined oil yield after a series of equilibrium stages indicated that 3 stages with an adsorbent-to-oil ratio of 0.5 (g g-1) and a 1:1 dilution in nhexane could refine the studied base oil (initial aromatics content 0.136 mmol g-1) to a white mineral oil of food grade, with a yield of about 60%. Removal of the solvent was considered easy given the high volatility of n-hexane as compared to the oil.Fil: Busto, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Sepulveda Flores, Jorge Humberto. Universidad Nacional del Litoral. Facultad de Ingeniería Química; ArgentinaFil: Carrara, Nicolás Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Vera, Carlos Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaAmerican Chemical Society2015-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/34990Busto, Mariana; Sepulveda Flores, Jorge Humberto; Carrara, Nicolás Ricardo; Vera, Carlos Roman; Adsorption of Aromatics from Base Oil over Polymeric Resins. Equilibrium and kinetics.; American Chemical Society; Energy & Fuels (print); 29; 2; 1-2015; 1249-12560887-0624CONICET DigitalCONICETspainfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/pdfplus/10.1021/ef502106ninfo:eu-repo/semantics/altIdentifier/doi/ 10.1021/ef502106ninfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:41:14Zoai:ri.conicet.gov.ar:11336/34990instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:41:15.161CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Adsorption of Aromatics from Base Oil over Polymeric Resins. Equilibrium and kinetics.
title Adsorption of Aromatics from Base Oil over Polymeric Resins. Equilibrium and kinetics.
spellingShingle Adsorption of Aromatics from Base Oil over Polymeric Resins. Equilibrium and kinetics.
Busto, Mariana
Adsorption
Polymeric Resins
Aromatics
Kinetics
title_short Adsorption of Aromatics from Base Oil over Polymeric Resins. Equilibrium and kinetics.
title_full Adsorption of Aromatics from Base Oil over Polymeric Resins. Equilibrium and kinetics.
title_fullStr Adsorption of Aromatics from Base Oil over Polymeric Resins. Equilibrium and kinetics.
title_full_unstemmed Adsorption of Aromatics from Base Oil over Polymeric Resins. Equilibrium and kinetics.
title_sort Adsorption of Aromatics from Base Oil over Polymeric Resins. Equilibrium and kinetics.
dc.creator.none.fl_str_mv Busto, Mariana
Sepulveda Flores, Jorge Humberto
Carrara, Nicolás Ricardo
Vera, Carlos Roman
author Busto, Mariana
author_facet Busto, Mariana
Sepulveda Flores, Jorge Humberto
Carrara, Nicolás Ricardo
Vera, Carlos Roman
author_role author
author2 Sepulveda Flores, Jorge Humberto
Carrara, Nicolás Ricardo
Vera, Carlos Roman
author2_role author
author
author
dc.subject.none.fl_str_mv Adsorption
Polymeric Resins
Aromatics
Kinetics
topic Adsorption
Polymeric Resins
Aromatics
Kinetics
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Adsorption of aromatic molecules from base oil over an acid resin (Amberlyst 15w) was studied, with a focus on reducing the aromatic content to that of a white mineral oil. It was found that the adsorption capacity of the resin was low. At saturation in the best condition the adsorption capacity corresponded to 10% de acid capacity. The effects of dilution, temperature and adsorption time were studied.In the absence of a diluting solvent the isotherm was unfavorable and the adsorption rate was low with a pseudo first order constant of about 0.1 h-1. Dilution of the oil with n-hexane had beneficial effects on the adsorption capacity, the adsorption rate and the yield of refined oil. The 1:1 (vol:vol) dilution was found to be optimal. Kinetic data were better explained by a model of dominant intraparticle diffusion, the adsorbate load being proportional to the square of the adsorption time. Dilution with n-hexane was thought to decrease the viscosity with a proportional increase of the diffusivity, and a decrease of the chemical affinity of the oil matrix.Estimations of the oil purity and refined oil yield after a series of equilibrium stages indicated that 3 stages with an adsorbent-to-oil ratio of 0.5 (g g-1) and a 1:1 dilution in nhexane could refine the studied base oil (initial aromatics content 0.136 mmol g-1) to a white mineral oil of food grade, with a yield of about 60%. Removal of the solvent was considered easy given the high volatility of n-hexane as compared to the oil.
Fil: Busto, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Sepulveda Flores, Jorge Humberto. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Carrara, Nicolás Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Vera, Carlos Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
description Adsorption of aromatic molecules from base oil over an acid resin (Amberlyst 15w) was studied, with a focus on reducing the aromatic content to that of a white mineral oil. It was found that the adsorption capacity of the resin was low. At saturation in the best condition the adsorption capacity corresponded to 10% de acid capacity. The effects of dilution, temperature and adsorption time were studied.In the absence of a diluting solvent the isotherm was unfavorable and the adsorption rate was low with a pseudo first order constant of about 0.1 h-1. Dilution of the oil with n-hexane had beneficial effects on the adsorption capacity, the adsorption rate and the yield of refined oil. The 1:1 (vol:vol) dilution was found to be optimal. Kinetic data were better explained by a model of dominant intraparticle diffusion, the adsorbate load being proportional to the square of the adsorption time. Dilution with n-hexane was thought to decrease the viscosity with a proportional increase of the diffusivity, and a decrease of the chemical affinity of the oil matrix.Estimations of the oil purity and refined oil yield after a series of equilibrium stages indicated that 3 stages with an adsorbent-to-oil ratio of 0.5 (g g-1) and a 1:1 dilution in nhexane could refine the studied base oil (initial aromatics content 0.136 mmol g-1) to a white mineral oil of food grade, with a yield of about 60%. Removal of the solvent was considered easy given the high volatility of n-hexane as compared to the oil.
publishDate 2015
dc.date.none.fl_str_mv 2015-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/34990
Busto, Mariana; Sepulveda Flores, Jorge Humberto; Carrara, Nicolás Ricardo; Vera, Carlos Roman; Adsorption of Aromatics from Base Oil over Polymeric Resins. Equilibrium and kinetics.; American Chemical Society; Energy & Fuels (print); 29; 2; 1-2015; 1249-1256
0887-0624
CONICET Digital
CONICET
url http://hdl.handle.net/11336/34990
identifier_str_mv Busto, Mariana; Sepulveda Flores, Jorge Humberto; Carrara, Nicolás Ricardo; Vera, Carlos Roman; Adsorption of Aromatics from Base Oil over Polymeric Resins. Equilibrium and kinetics.; American Chemical Society; Energy & Fuels (print); 29; 2; 1-2015; 1249-1256
0887-0624
CONICET Digital
CONICET
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/pdfplus/10.1021/ef502106n
info:eu-repo/semantics/altIdentifier/doi/ 10.1021/ef502106n
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.069144

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