Nickel and cobalt ilmenites-based catalysts for upgrading pyrolytic oil during pyrolysis ofwaste tires

Pyrolysis as a waste treatment method has gained relevance because it can generate higher value-added products in addition to reducing the environment’s secondary pollution. In this study, the catalytic pyrolysis of waste tires was evaluated using NiTiO3 and CoTiO3 ilmenites as catalysts and precurs...

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Autores principales: Correa Muriel, Daniela, Valencia Sánchez, Hoover, Cortes Hernández, Héctor, González Vera, Daniela, Herrera, Javiera, Campos, Cristian H., Casella, Mónica Laura, Arteaga Perez, Luis E., Osorio Vargas, Paula
Formato: Articulo
Lenguaje:Inglés
Publicado: 2022
Materias:
Química
Metal catalysts
Ilmenites
Waste tire pyrolysis
Aromatics production
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/152913
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-152913
record_format dspace
spelling I19-R120-10915-1529132023-05-13T04:07:26Z http://sedici.unlp.edu.ar/handle/10915/152913 issn:2073-4344 Nickel and cobalt ilmenites-based catalysts for upgrading pyrolytic oil during pyrolysis ofwaste tires Correa Muriel, Daniela Valencia Sánchez, Hoover Cortes Hernández, Héctor González Vera, Daniela Herrera, Javiera Campos, Cristian H. Casella, Mónica Laura Arteaga Perez, Luis E. Osorio Vargas, Paula 2022 2023-05-12T16:09:37Z en Química Metal catalysts Ilmenites Waste tire pyrolysis Aromatics production Pyrolysis as a waste treatment method has gained relevance because it can generate higher value-added products in addition to reducing the environment’s secondary pollution. In this study, the catalytic pyrolysis of waste tires was evaluated using NiTiO3 and CoTiO3 ilmenites as catalysts and precursors of metal catalysts with the aim to produce an oil enriched in high-value hydrocarbons, such as benzene, toluene, a xylenes mixture, and products less-reported, such as p-cymene and p-cymenene. The experiments were performed in an analytical pyrolyzer coupled to GC/MS. The effect of the nature of the catalysts on the product distribution was compared with the uncatalyzed reaction. The main products of uncatalyzed pyrolysis were D, L-limonene (~60%), and isoprene (~25%) due to the depolymerization of natural rubber. Meanwhile, Ni-ilmenites-based catalysts favored the formation of target compounds to expense D, L-limonene. Moreover, the presence of metal in reduced-ilmenite sharply enhanced the selectivity by ~50% concerning oxidized ilmenite and above 80% compared to the uncatalyzed reaction for p-cymene and p-cymenene. By contrast, the Co-ilmenites-based catalysts showed a marginal effect on secondary reactions. Finally, the feasibility of forming the aromatic terpenes, p-cymene, and p-cymenene from limonene in the non-catalytic pyrolysis was evaluated. Centro de Investigación y Desarrollo en Ciencias Aplicadas Articulo Articulo http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Metal catalysts
Ilmenites
Waste tire pyrolysis
Aromatics production
spellingShingle Química
Metal catalysts
Ilmenites
Waste tire pyrolysis
Aromatics production
Correa Muriel, Daniela
Valencia Sánchez, Hoover
Cortes Hernández, Héctor
González Vera, Daniela
Herrera, Javiera
Campos, Cristian H.
Casella, Mónica Laura
Arteaga Perez, Luis E.
Osorio Vargas, Paula
Nickel and cobalt ilmenites-based catalysts for upgrading pyrolytic oil during pyrolysis ofwaste tires
topic_facet Química
Metal catalysts
Ilmenites
Waste tire pyrolysis
Aromatics production
description Pyrolysis as a waste treatment method has gained relevance because it can generate higher value-added products in addition to reducing the environment’s secondary pollution. In this study, the catalytic pyrolysis of waste tires was evaluated using NiTiO3 and CoTiO3 ilmenites as catalysts and precursors of metal catalysts with the aim to produce an oil enriched in high-value hydrocarbons, such as benzene, toluene, a xylenes mixture, and products less-reported, such as p-cymene and p-cymenene. The experiments were performed in an analytical pyrolyzer coupled to GC/MS. The effect of the nature of the catalysts on the product distribution was compared with the uncatalyzed reaction. The main products of uncatalyzed pyrolysis were D, L-limonene (~60%), and isoprene (~25%) due to the depolymerization of natural rubber. Meanwhile, Ni-ilmenites-based catalysts favored the formation of target compounds to expense D, L-limonene. Moreover, the presence of metal in reduced-ilmenite sharply enhanced the selectivity by ~50% concerning oxidized ilmenite and above 80% compared to the uncatalyzed reaction for p-cymene and p-cymenene. By contrast, the Co-ilmenites-based catalysts showed a marginal effect on secondary reactions. Finally, the feasibility of forming the aromatic terpenes, p-cymene, and p-cymenene from limonene in the non-catalytic pyrolysis was evaluated.
format Articulo
Articulo
author Correa Muriel, Daniela
Valencia Sánchez, Hoover
Cortes Hernández, Héctor
González Vera, Daniela
Herrera, Javiera
Campos, Cristian H.
Casella, Mónica Laura
Arteaga Perez, Luis E.
Osorio Vargas, Paula
author_facet Correa Muriel, Daniela
Valencia Sánchez, Hoover
Cortes Hernández, Héctor
González Vera, Daniela
Herrera, Javiera
Campos, Cristian H.
Casella, Mónica Laura
Arteaga Perez, Luis E.
Osorio Vargas, Paula
author_sort Correa Muriel, Daniela
title Nickel and cobalt ilmenites-based catalysts for upgrading pyrolytic oil during pyrolysis ofwaste tires
title_short Nickel and cobalt ilmenites-based catalysts for upgrading pyrolytic oil during pyrolysis ofwaste tires
title_full Nickel and cobalt ilmenites-based catalysts for upgrading pyrolytic oil during pyrolysis ofwaste tires
title_fullStr Nickel and cobalt ilmenites-based catalysts for upgrading pyrolytic oil during pyrolysis ofwaste tires
title_full_unstemmed Nickel and cobalt ilmenites-based catalysts for upgrading pyrolytic oil during pyrolysis ofwaste tires
title_sort nickel and cobalt ilmenites-based catalysts for upgrading pyrolytic oil during pyrolysis ofwaste tires
publishDate 2022
url http://sedici.unlp.edu.ar/handle/10915/152913
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