Ca-based catalysts for the production of high-quality bio-oils from the catalytic co-pyrolysis of grape seeds and waste tyres
The catalytic co-pyrolysis of grape seeds and waste tyres for the production of high-quality bio-oils was studied in a pilot-scale Auger reactor using different low-cost Ca-based catalysts. All the products of the process (solid, liquid, and gas) were comprehensively analysed. The results demonstrat...
| Authors: | ; ; ; ; ; |
|---|---|
| Format: | Article |
| Status: | Published version |
| Publication date: | 2019 |
| Country: | España |
| Institution: | Universidad de Zaragoza |
| Repository: | Zaguán. Repositorio Digital de la Universidad de Zaragoza |
| OAI Identifier: | oai:zaguan.unizar.es:89639 |
| Online Access: | http://zaguan.unizar.es/record/89639 |
| Access Level: | Open access |
| _version_ | 1878734909722329088 |
|---|---|
| author | Sanahuja-Parejo, Olga |
| author2 | Veses, Alberto López, José Manuel Murillo, Ramón Callén, María Soledad García, Tomás |
| author2_role | author author author author author |
| author_browse | Callén, María Soledad García, Tomás López, José Manuel Murillo, Ramón Sanahuja-Parejo, Olga Veses, Alberto |
| author_facet | Sanahuja-Parejo, Olga Veses, Alberto López, José Manuel Murillo, Ramón Callén, María Soledad García, Tomás |
| author_role | author |
| collection | Zaguán. Repositorio Digital de la Universidad de Zaragoza |
| description | The catalytic co-pyrolysis of grape seeds and waste tyres for the production of high-quality bio-oils was studied in a pilot-scale Auger reactor using different low-cost Ca-based catalysts. All the products of the process (solid, liquid, and gas) were comprehensively analysed. The results demonstrate that this upgrading strategy is suitable for the production of better-quality bio-oils with major potential for use as drop-in fuels. Although very good results were obtained regardless of the nature of the Ca-based catalyst, the best results were achieved using a high-purity CaO obtained from the calcination of natural limestone at 900 degrees C. Specifically, by adding 20 wt% waste tyres and using a feedstock to CaO mass ratio of 2:1, a practically deoxygenated bio-oil (0.5 wt% of oxygen content) was obtained with a significant heating value of 41.7 MJ/kg, confirming its potential for use in energy applications. The total basicity of the catalyst and the presence of a pure CaO crystalline phase with marginal impurities seem to be key parameters facilitating the prevalence of aromatisation and hydrodeoxygenation routes over the de-acidification and deoxygenation of the vapours through ketonisation and esterification reactions, leading to a highly aromatic biofuel. In addition, owing to the CO2-capture effect inherent to these catalysts, a more environmentally friendly gas product was produced, comprising H-2 and CH4 as the main components. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_723d3a9c837726758902f0cdb71bf428 |
| institution | Universidad de Zaragoza |
| instname_str | Universidad de Zaragoza |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:zaguan.unizar.es:89639 |
| publishDate | 2019 |
| publishDateSort | 2019 |
| reponame_str | Zaguán. Repositorio Digital de la Universidad de Zaragoza |
| spelling | Ca-based catalysts for the production of high-quality bio-oils from the catalytic co-pyrolysis of grape seeds and waste tyres Sanahuja-Parejo, Olga Veses, Alberto López, José Manuel Murillo, Ramón Callén, María Soledad García, Tomás The catalytic co-pyrolysis of grape seeds and waste tyres for the production of high-quality bio-oils was studied in a pilot-scale Auger reactor using different low-cost Ca-based catalysts. All the products of the process (solid, liquid, and gas) were comprehensively analysed. The results demonstrate that this upgrading strategy is suitable for the production of better-quality bio-oils with major potential for use as drop-in fuels. Although very good results were obtained regardless of the nature of the Ca-based catalyst, the best results were achieved using a high-purity CaO obtained from the calcination of natural limestone at 900 degrees C. Specifically, by adding 20 wt% waste tyres and using a feedstock to CaO mass ratio of 2:1, a practically deoxygenated bio-oil (0.5 wt% of oxygen content) was obtained with a significant heating value of 41.7 MJ/kg, confirming its potential for use in energy applications. The total basicity of the catalyst and the presence of a pure CaO crystalline phase with marginal impurities seem to be key parameters facilitating the prevalence of aromatisation and hydrodeoxygenation routes over the de-acidification and deoxygenation of the vapours through ketonisation and esterification reactions, leading to a highly aromatic biofuel. In addition, owing to the CO2-capture effect inherent to these catalysts, a more environmentally friendly gas product was produced, comprising H-2 and CH4 as the main components. http://zaguan.unizar.es/record/89639 |
| spellingShingle | Ca-based catalysts for the production of high-quality bio-oils from the catalytic co-pyrolysis of grape seeds and waste tyres Sanahuja-Parejo, Olga |
| status_str | publishedVersion |
| title | Ca-based catalysts for the production of high-quality bio-oils from the catalytic co-pyrolysis of grape seeds and waste tyres |
| title_full | Ca-based catalysts for the production of high-quality bio-oils from the catalytic co-pyrolysis of grape seeds and waste tyres |
| title_fullStr | Ca-based catalysts for the production of high-quality bio-oils from the catalytic co-pyrolysis of grape seeds and waste tyres |
| title_full_unstemmed | Ca-based catalysts for the production of high-quality bio-oils from the catalytic co-pyrolysis of grape seeds and waste tyres |
| title_short | Ca-based catalysts for the production of high-quality bio-oils from the catalytic co-pyrolysis of grape seeds and waste tyres |
| title_sort | Ca-based catalysts for the production of high-quality bio-oils from the catalytic co-pyrolysis of grape seeds and waste tyres |
| url | http://zaguan.unizar.es/record/89639 |