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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/34990
Ver los metadatos del registro completo
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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 Técnicas2025-09-03T09:48:15Zoai: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:34982025-09-03 09:48:15.668CONICET 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 |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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1842268913863229440 |
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13.13397 |