High-radiance LED-driven fluidized bed photoreactor for the complete oxidation of n-hexane in air

This work presents a highly efficient photo-reactor configuration for VOC abatement. It consists of a fluidized bed made of commercial, easy to fluidize, transparent borosilicate glass beads coated with commercial TiO2 nanoparticles (0.15–2.3 wt% loadings). Herein, we demonstrate that the use of hig...

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Authors: Bueno-Alejo, C.J., Hueso, J.L., Mallada, R., Julian, I., Santamaria, J.
Format: article
Status:Versión aceptada para publicación
Publication Date:2019
Country:España
Institution:Universidad de Zaragoza
Repository:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:84190
Online Access:http://zaguan.unizar.es/record/84190
Access Level:Open access
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spelling High-radiance LED-driven fluidized bed photoreactor for the complete oxidation of n-hexane in airBueno-Alejo, C.J.Hueso, J.L.Mallada, R.Julian, I.Santamaria, J.This work presents a highly efficient photo-reactor configuration for VOC abatement. It consists of a fluidized bed made of commercial, easy to fluidize, transparent borosilicate glass beads coated with commercial TiO2 nanoparticles (0.15–2.3 wt% loadings). Herein, we demonstrate that the use of high-radiance/low consumption UV-LEDs as irradiation sources with a deeper light penetration under fluidizing conditions facilitates the photocatalytic response to achieve the complete oxidation of VOCs. The role of different parameters such as catalyst loading and irradiation power have been thoroughly studied and evaluated to maximize the full combustion of n-hexane. Under the high radiance (up to 2200 mW/cm2) conditions used the bed heats significantly (up to 190 °C), although this did not have an effect on the conversions reached, which depended solely on the wavelength and power used. The productivity of the photoreactor tested and the space velocity used were around 5.25 × 10-2 mol/g·h and 12000 h-1 respectively.2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://zaguan.unizar.es/record/84190reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/grantAgreement/ES/MINECO/CTQ2016-77147-Rinfo:eu-repo/grantAgreement/ES/MINECO/CTQ2016-79419-Rinfo:eu-repo/semantics/openAccessoai:zaguan.unizar.es:841902026-05-29T13:59:51Z
dc.title.none.fl_str_mv High-radiance LED-driven fluidized bed photoreactor for the complete oxidation of n-hexane in air
title High-radiance LED-driven fluidized bed photoreactor for the complete oxidation of n-hexane in air
spellingShingle High-radiance LED-driven fluidized bed photoreactor for the complete oxidation of n-hexane in air
Bueno-Alejo, C.J.
title_short High-radiance LED-driven fluidized bed photoreactor for the complete oxidation of n-hexane in air
title_full High-radiance LED-driven fluidized bed photoreactor for the complete oxidation of n-hexane in air
title_fullStr High-radiance LED-driven fluidized bed photoreactor for the complete oxidation of n-hexane in air
title_full_unstemmed High-radiance LED-driven fluidized bed photoreactor for the complete oxidation of n-hexane in air
title_sort High-radiance LED-driven fluidized bed photoreactor for the complete oxidation of n-hexane in air
dc.creator.none.fl_str_mv Bueno-Alejo, C.J.
Hueso, J.L.
Mallada, R.
Julian, I.
Santamaria, J.
author Bueno-Alejo, C.J.
author_facet Bueno-Alejo, C.J.
Hueso, J.L.
Mallada, R.
Julian, I.
Santamaria, J.
author_role author
author2 Hueso, J.L.
Mallada, R.
Julian, I.
Santamaria, J.
author2_role author
author
author
author
description This work presents a highly efficient photo-reactor configuration for VOC abatement. It consists of a fluidized bed made of commercial, easy to fluidize, transparent borosilicate glass beads coated with commercial TiO2 nanoparticles (0.15–2.3 wt% loadings). Herein, we demonstrate that the use of high-radiance/low consumption UV-LEDs as irradiation sources with a deeper light penetration under fluidizing conditions facilitates the photocatalytic response to achieve the complete oxidation of VOCs. The role of different parameters such as catalyst loading and irradiation power have been thoroughly studied and evaluated to maximize the full combustion of n-hexane. Under the high radiance (up to 2200 mW/cm2) conditions used the bed heats significantly (up to 190 °C), although this did not have an effect on the conversions reached, which depended solely on the wavelength and power used. The productivity of the photoreactor tested and the space velocity used were around 5.25 × 10-2 mol/g·h and 12000 h-1 respectively.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://zaguan.unizar.es/record/84190
url http://zaguan.unizar.es/record/84190
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/ES/MINECO/CTQ2016-77147-R
info:eu-repo/grantAgreement/ES/MINECO/CTQ2016-79419-R
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv
publisher.none.fl_str_mv
dc.source.none.fl_str_mv reponame:Zaguán. Repositorio Digital de la Universidad de Zaragoza
instname:Universidad de Zaragoza
instname_str Universidad de Zaragoza
reponame_str Zaguán. Repositorio Digital de la Universidad de Zaragoza
collection Zaguán. Repositorio Digital de la Universidad de Zaragoza
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,198674

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