Thermal behavior, reaction pathways and kinetic implications of using a Ni/SiO₂ catalyst for waste tire pyrolysis

Catalytic pyrolysis has been used to upgrading the quality of pyrolytic liquids. Herein, we report a comprehensive study on the catalytic pyrolysis of waste tires using Ni/SiO₂ as catalysts. The analyses were carried out by combining thermogravimetry (TGA), TGA interfaced to a Fourier transform infr...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Osorio Vargas, Paula, Lick, Ileana Daniela, Sobrevía, Felipe, Correa Muriel, Daniela, Menares, Tamara, Manrique, Raydel, Casella, Mónica Laura, Arteaga Pérez, Luis E.
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2021
Materias:
Química
Catalytic waste tire pyrolysis, Ni/SiO2
Py-GC/MS
Master-plots method
Isoconversional methods
TGA/FTIR
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/127075
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-127075
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Catalytic waste tire pyrolysis, Ni/SiO2
Py-GC/MS
Master-plots method
Isoconversional methods
TGA/FTIR
spellingShingle Química
Catalytic waste tire pyrolysis, Ni/SiO2
Py-GC/MS
Master-plots method
Isoconversional methods
TGA/FTIR
Osorio Vargas, Paula
Lick, Ileana Daniela
Sobrevía, Felipe
Correa Muriel, Daniela
Menares, Tamara
Manrique, Raydel
Casella, Mónica Laura
Arteaga Pérez, Luis E.
Thermal behavior, reaction pathways and kinetic implications of using a Ni/SiO₂ catalyst for waste tire pyrolysis
topic_facet Química
Catalytic waste tire pyrolysis, Ni/SiO2
Py-GC/MS
Master-plots method
Isoconversional methods
TGA/FTIR
description Catalytic pyrolysis has been used to upgrading the quality of pyrolytic liquids. Herein, we report a comprehensive study on the catalytic pyrolysis of waste tires using Ni/SiO₂ as catalysts. The analyses were carried out by combining thermogravimetry (TGA), TGA interfaced to a Fourier transform infrared spectrometer (TGA–FTIR), and pyrolysis coupled to gas chromatography/mass spectrometer (Py–GC/MS) techniques. During waste tire decomposition, the main functional groups detected in the FTIR were alkenes, aromatics, and heteroatoms-containing groups such as nitrogen, sulfur, and oxygen. Meanwhile, by Py–GC/MS were identified mainly D,L-limonene, isoprene, benzene, toluene, xylenes (BTX), and p-cymene. The Py–GC/MS experiments at three different temperatures (350, 400, and 450 °C) suggested an effect of the catalyst on product distribution. The Ni catalyst promoted cyclization reactions and subsequently aromatization, leading to an improved vapors composition. The use of iso-conversional kinetic models along with master plots allows proposing a multiple-step reaction mechanism, which was well described by the Avrami–Erofeev, Random Scission, and truncated Sestak–Berggren models. The values of activation energies show differences for the catalyzed and uncatalyzed pyrolysis (111.0 kJ mol⁻¹ and 168.4 kJ mol⁻¹ ), validating the effectivity of Ni/SiO₂. Finally, the thermal Biot (> 1) and PyI and PyII numbers (10–³ < PyI < 10⁻¹ and 10⁻² < PyII < 10⁻³) confirms that the process is being occurred between the kinetic and the convection-limited regimes.
format Articulo
Preprint
author Osorio Vargas, Paula
Lick, Ileana Daniela
Sobrevía, Felipe
Correa Muriel, Daniela
Menares, Tamara
Manrique, Raydel
Casella, Mónica Laura
Arteaga Pérez, Luis E.
author_facet Osorio Vargas, Paula
Lick, Ileana Daniela
Sobrevía, Felipe
Correa Muriel, Daniela
Menares, Tamara
Manrique, Raydel
Casella, Mónica Laura
Arteaga Pérez, Luis E.
author_sort Osorio Vargas, Paula
title Thermal behavior, reaction pathways and kinetic implications of using a Ni/SiO₂ catalyst for waste tire pyrolysis
title_short Thermal behavior, reaction pathways and kinetic implications of using a Ni/SiO₂ catalyst for waste tire pyrolysis
title_full Thermal behavior, reaction pathways and kinetic implications of using a Ni/SiO₂ catalyst for waste tire pyrolysis
title_fullStr Thermal behavior, reaction pathways and kinetic implications of using a Ni/SiO₂ catalyst for waste tire pyrolysis
title_full_unstemmed Thermal behavior, reaction pathways and kinetic implications of using a Ni/SiO₂ catalyst for waste tire pyrolysis
title_sort thermal behavior, reaction pathways and kinetic implications of using a ni/sio₂ catalyst for waste tire pyrolysis
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/127075
work_keys_str_mv AT osoriovargaspaula thermalbehaviorreactionpathwaysandkineticimplicationsofusinganisio2catalystforwastetirepyrolysis
AT lickileanadaniela thermalbehaviorreactionpathwaysandkineticimplicationsofusinganisio2catalystforwastetirepyrolysis
AT sobreviafelipe thermalbehaviorreactionpathwaysandkineticimplicationsofusinganisio2catalystforwastetirepyrolysis
AT correamurieldaniela thermalbehaviorreactionpathwaysandkineticimplicationsofusinganisio2catalystforwastetirepyrolysis
AT menarestamara thermalbehaviorreactionpathwaysandkineticimplicationsofusinganisio2catalystforwastetirepyrolysis
AT manriqueraydel thermalbehaviorreactionpathwaysandkineticimplicationsofusinganisio2catalystforwastetirepyrolysis
AT casellamonicalaura thermalbehaviorreactionpathwaysandkineticimplicationsofusinganisio2catalystforwastetirepyrolysis
AT arteagaperezluise thermalbehaviorreactionpathwaysandkineticimplicationsofusinganisio2catalystforwastetirepyrolysis
bdutipo_str Repositorios
_version_ 1764820451249356801

Ejemplares similares