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Waste Tire Pyrolysis and Distillation for Designing Effective Asphalt Rejuvenators

José R. Colina, Manuel Chavez-Delgado, Claudio Álvarez, Cristina Segura, Rodrigo Delgadillo, Jose L. Concha, Luis E. Arteaga-Pérez Orcid Logo, Jose Norambuena-Contreras Orcid Logo

Energy & Fuels, Volume: 39, Issue: 42, Pages: 20369 - 20382

Swansea University Author: Jose Norambuena-Contreras Orcid Logo

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DOI (Published version): 10.1021/acs.energyfuels.5c03533

Abstract

The pyrolysis of waste tires presents a sustainable strategy to convert polymeric waste into functional pyro-oil asphalt rejuvenators. However, the chemical complexity and variability of pyro-oils have hindered consistent performance and predictive control. In this study, we develop optimized pyro-r...

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Published in: Energy & Fuels
ISSN: 0887-0624 1520-5029
Published: American Chemical Society (ACS) 2025
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URI: https://cronfa.swan.ac.uk/Record/cronfa70627
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spelling 2025-12-12T12:57:14.7907765 v2 70627 2025-10-10 Waste Tire Pyrolysis and Distillation for Designing Effective Asphalt Rejuvenators 73c6854ebb10465fbf7faab297135641 0000-0001-8327-2236 Jose Norambuena-Contreras Jose Norambuena-Contreras true false 2025-10-10 ACEM The pyrolysis of waste tires presents a sustainable strategy to convert polymeric waste into functional pyro-oil asphalt rejuvenators. However, the chemical complexity and variability of pyro-oils have hindered consistent performance and predictive control. In this study, we develop optimized pyro-rejuvenators (PRs) aimed at restoring the self-healing properties of aged asphalt binders. Employing response surface methodology (RSM), we determined ideal pyrolysis conditions for producing PRs from Passenger Car Waste Tires (PCWT) and Haul Truck Waste Tires (HTWT). The optimum PRs were obtained from the 160–200 °C distillation fractions of pyro-oils produced at pyrolysis temperatures of 450 °C (PCWT) and 470 °C (HTWT). These rejuvenators feature a high content (>95%) of monoaromatics and alkenes coupled with low viscosity (<10 cP). Notably, PRs derived from PCWT and HTWT enhanced the healing index of aged bitumen by 26.6% and 45.3%, respectively, compared to natural recovery. This performance improvement strongly correlates with the limonene and cymene concentrations in the PRs. These findings advance the development of pyro-rejuvenators that not only restore the self-healing capacity of asphalt binders but also demonstrate the promise of sustainable tire-derived additives as key enablers of a circular economy. Journal Article Energy &amp; Fuels 39 42 20369 20382 American Chemical Society (ACS) 0887-0624 1520-5029 Waste tires; Pyrolysis; Distillation; Self-healing asphalt 23 10 2025 2025-10-23 10.1021/acs.energyfuels.5c03533 COLLEGE NANME Aerospace, Civil, Electrical, and Mechanical Engineering COLLEGE CODE ACEM Swansea University National Research and Development Agency (ANID) through the Research Project FONDEF No. ID21I10127. 2025-12-12T12:57:14.7907765 2025-10-10T09:44:45.3166254 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering José R. Colina 1 Manuel Chavez-Delgado 2 Claudio Álvarez 3 Cristina Segura 4 Rodrigo Delgadillo 5 Jose L. Concha 6 Luis E. Arteaga-Pérez 0000-0003-3982-4165 7 Jose Norambuena-Contreras 0000-0001-8327-2236 8 70627__35299__645682742f8f4d77b9423b9c05a7f225.pdf 70627.pdf 2025-10-10T09:49:12.8875296 Output 2084078 application/pdf Accepted Manuscript true Author accepted manuscript document released under the terms of a Creative Commons CC-BY licence using the Swansea University Research Publications Policy (rights retention). true eng https://creativecommons.org/licenses/by/4.0/deed.en
title Waste Tire Pyrolysis and Distillation for Designing Effective Asphalt Rejuvenators
spellingShingle Waste Tire Pyrolysis and Distillation for Designing Effective Asphalt Rejuvenators
Jose Norambuena-Contreras
title_short Waste Tire Pyrolysis and Distillation for Designing Effective Asphalt Rejuvenators
title_full Waste Tire Pyrolysis and Distillation for Designing Effective Asphalt Rejuvenators
title_fullStr Waste Tire Pyrolysis and Distillation for Designing Effective Asphalt Rejuvenators
title_full_unstemmed Waste Tire Pyrolysis and Distillation for Designing Effective Asphalt Rejuvenators
title_sort Waste Tire Pyrolysis and Distillation for Designing Effective Asphalt Rejuvenators
author_id_str_mv 73c6854ebb10465fbf7faab297135641
author_id_fullname_str_mv 73c6854ebb10465fbf7faab297135641_***_Jose Norambuena-Contreras
author Jose Norambuena-Contreras
author2 José R. Colina
Manuel Chavez-Delgado
Claudio Álvarez
Cristina Segura
Rodrigo Delgadillo
Jose L. Concha
Luis E. Arteaga-Pérez
Jose Norambuena-Contreras
format Journal article
container_title Energy &amp; Fuels
container_volume 39
container_issue 42
container_start_page 20369
publishDate 2025
institution Swansea University
issn 0887-0624
1520-5029
doi_str_mv 10.1021/acs.energyfuels.5c03533
publisher American Chemical Society (ACS)
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
document_store_str 1
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description The pyrolysis of waste tires presents a sustainable strategy to convert polymeric waste into functional pyro-oil asphalt rejuvenators. However, the chemical complexity and variability of pyro-oils have hindered consistent performance and predictive control. In this study, we develop optimized pyro-rejuvenators (PRs) aimed at restoring the self-healing properties of aged asphalt binders. Employing response surface methodology (RSM), we determined ideal pyrolysis conditions for producing PRs from Passenger Car Waste Tires (PCWT) and Haul Truck Waste Tires (HTWT). The optimum PRs were obtained from the 160–200 °C distillation fractions of pyro-oils produced at pyrolysis temperatures of 450 °C (PCWT) and 470 °C (HTWT). These rejuvenators feature a high content (>95%) of monoaromatics and alkenes coupled with low viscosity (<10 cP). Notably, PRs derived from PCWT and HTWT enhanced the healing index of aged bitumen by 26.6% and 45.3%, respectively, compared to natural recovery. This performance improvement strongly correlates with the limonene and cymene concentrations in the PRs. These findings advance the development of pyro-rejuvenators that not only restore the self-healing capacity of asphalt binders but also demonstrate the promise of sustainable tire-derived additives as key enablers of a circular economy.
published_date 2025-10-23T05:27:02Z
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