Catalytic co-pyrolysis of grape seeds and waste tyres for the production of drop-in biofuels

Catalytic co-pyrolysis of grape seeds and waste tyres was performed in a fixed-bed reactor using calcined calcite as a catalyst. The organic phase obtained was analysed for its further application as a potential and stable drop-in fuel. Remarkable positive effects were achieved after the joint incor...

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Autores: Sanahuja-Parejo, Olga, Veses Roda, Alberto, Navarro López, M. Victoria, López Sebastián, José Manuel, Murillo Villuendas, Ramón, Callén Romero, M. Soledad, García Martínez, Tomás
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:119704
Acceso en línea:http://zaguan.unizar.es/record/119704
Access Level:acceso abierto
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spelling Catalytic co-pyrolysis of grape seeds and waste tyres for the production of drop-in biofuelsSanahuja-Parejo, OlgaVeses Roda, AlbertoNavarro López, M. VictoriaLópez Sebastián, José ManuelMurillo Villuendas, RamónCallén Romero, M. SoledadGarcía Martínez, TomásCatalytic co-pyrolysis of grape seeds and waste tyres was performed in a fixed-bed reactor using calcined calcite as a catalyst. The organic phase obtained was analysed for its further application as a potential and stable drop-in fuel. Remarkable positive effects were achieved after the joint incorporation of both waste tyres and calcined calcite to grape seeds in the process. More specifically, the addition of considerable amounts of waste tyres (between 20 and 40 wt%) with a constant ratio of feedstock to calcined calcite of 1 were considered the optimal experimental conditions to promote positive synergistic effects on bio-oil yields and its characteristics as a fuel. Thus, when the proportion of waste tyres in the feed reached 40 wt%, the organic phase yield was considerable improved, reaching up values higher than 73 wt%, significantly greater than those obtained from conventional pyrolysis (61 wt%). Moreover, oxygen content was reduced to 4.2 wt%, minimizing any problems related to corrosivity and instability. HHV was enlarged from 15.3 up to 27.3 MJ/kg, significantly increasing the value of the resulting bio-oil. pH values and specially total acid number were also improved reaching values down to 1 mg KOH/gbio-oil in all cases. Additionally, a more valuable chemical composition was achieved since the production of aromatic and cyclic hydrocarbons was maximized, while a significant reduction in phenolic compounds was achieved. Moreover, bio-oil sulphur content was drastically reduced in comparison with the pyrolysis of waste tyres by itself from 0.6 down to 0.2 wt%. The role of calcined calcite was directly related to the promotion of dehydration reactions of acids and phenols in order to generate hydrocarbons. On the other hand, radical interactions between the biomass and waste tyres pyrolysis products played a fundamental role in the production of more valuable compounds. Finally, the CO2 capture effect produced a more environmentally friendly gas while maintaining its calorific value.2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://zaguan.unizar.es/record/119704reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/grantAgreement/ES/MINECO-FEDER/ENE2015-68320-Rinfo:eu-repo/semantics/openAccessoai:zaguan.unizar.es:1197042026-05-29T13:59:51Z
dc.title.none.fl_str_mv Catalytic co-pyrolysis of grape seeds and waste tyres for the production of drop-in biofuels
title Catalytic co-pyrolysis of grape seeds and waste tyres for the production of drop-in biofuels
spellingShingle Catalytic co-pyrolysis of grape seeds and waste tyres for the production of drop-in biofuels
Sanahuja-Parejo, Olga
title_short Catalytic co-pyrolysis of grape seeds and waste tyres for the production of drop-in biofuels
title_full Catalytic co-pyrolysis of grape seeds and waste tyres for the production of drop-in biofuels
title_fullStr Catalytic co-pyrolysis of grape seeds and waste tyres for the production of drop-in biofuels
title_full_unstemmed Catalytic co-pyrolysis of grape seeds and waste tyres for the production of drop-in biofuels
title_sort Catalytic co-pyrolysis of grape seeds and waste tyres for the production of drop-in biofuels
dc.creator.none.fl_str_mv Sanahuja-Parejo, Olga
Veses Roda, Alberto
Navarro López, M. Victoria
López Sebastián, José Manuel
Murillo Villuendas, Ramón
Callén Romero, M. Soledad
García Martínez, Tomás
author Sanahuja-Parejo, Olga
author_facet Sanahuja-Parejo, Olga
Veses Roda, Alberto
Navarro López, M. Victoria
López Sebastián, José Manuel
Murillo Villuendas, Ramón
Callén Romero, M. Soledad
García Martínez, Tomás
author_role author
author2 Veses Roda, Alberto
Navarro López, M. Victoria
López Sebastián, José Manuel
Murillo Villuendas, Ramón
Callén Romero, M. Soledad
García Martínez, Tomás
author2_role author
author
author
author
author
author
description Catalytic co-pyrolysis of grape seeds and waste tyres was performed in a fixed-bed reactor using calcined calcite as a catalyst. The organic phase obtained was analysed for its further application as a potential and stable drop-in fuel. Remarkable positive effects were achieved after the joint incorporation of both waste tyres and calcined calcite to grape seeds in the process. More specifically, the addition of considerable amounts of waste tyres (between 20 and 40 wt%) with a constant ratio of feedstock to calcined calcite of 1 were considered the optimal experimental conditions to promote positive synergistic effects on bio-oil yields and its characteristics as a fuel. Thus, when the proportion of waste tyres in the feed reached 40 wt%, the organic phase yield was considerable improved, reaching up values higher than 73 wt%, significantly greater than those obtained from conventional pyrolysis (61 wt%). Moreover, oxygen content was reduced to 4.2 wt%, minimizing any problems related to corrosivity and instability. HHV was enlarged from 15.3 up to 27.3 MJ/kg, significantly increasing the value of the resulting bio-oil. pH values and specially total acid number were also improved reaching values down to 1 mg KOH/gbio-oil in all cases. Additionally, a more valuable chemical composition was achieved since the production of aromatic and cyclic hydrocarbons was maximized, while a significant reduction in phenolic compounds was achieved. Moreover, bio-oil sulphur content was drastically reduced in comparison with the pyrolysis of waste tyres by itself from 0.6 down to 0.2 wt%. The role of calcined calcite was directly related to the promotion of dehydration reactions of acids and phenols in order to generate hydrocarbons. On the other hand, radical interactions between the biomass and waste tyres pyrolysis products played a fundamental role in the production of more valuable compounds. Finally, the CO2 capture effect produced a more environmentally friendly gas while maintaining its calorific value.
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.none.fl_str_mv http://zaguan.unizar.es/record/119704
url http://zaguan.unizar.es/record/119704
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/ES/MINECO-FEDER/ENE2015-68320-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
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