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research article

Hydrogen production by waste tire recycling by photo-pyrolysis

Silva, Wanderson O.  
•
Nagar, Bhawna  
•
Ellersiek, Dennis  
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November 7, 2023
Sustainable Energy & Fuels

Waste tires are a major environmental concern due to their non-degradable nature and the large area occupied by them in landfills worldwide. Several recycling processes have been applied to minimize the high amount of waste tire disposal; in particular, pyrolysis has gained more attention since it can minimize the emission of toxic gases. In this study, we present a new process for treating waste tires called "photo-pyrolysis". End-of-life tires, in the form of powder (100-200 μm) and/or small shreds, were converted in a few seconds (2.4 to 20 s), by using high-intensity flash light irradiation from a xenon lamp, into valuable products such as tire pyrolysis oil (TPO) and syngas, and a carbon-rich solid residue. 44 wt% was recovered as a solid of which 32.3 wt% was related to carbon and 11.7 wt% to the metals and inorganic fillers. The next 36 wt% was attributed to a mixture of gases (mainly hydrogen, ethylene, and methane) and the remaining 20 wt% was produced as a liquid fraction (TPO). Therefore, photo-pyrolysis is proposed as a new and eco-friendly strategy for recycling end-of-life tires, which can be industrialized with continuous processing systems, and used not only for tire recycling but also for other solid organic wastes.|Waste tires are a major environmental concern due to their non-degradable nature and the large area occupied by them in landfills worldwide.

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Type
research article
DOI
10.1039/d3se01319g
Web of Science ID

WOS:001103466700001

Author(s)
Silva, Wanderson O.  
•
Nagar, Bhawna  
•
Ellersiek, Dennis  
•
Bondaz, Luc Sébastien  
•
Espin, Jordi  
•
Soutrenon, Mathieu
•
Girault, Hubert H  
Date Issued

2023-11-07

Published in
Sustainable Energy & Fuels
Volume

7

Issue

24

Start page

5693

End page

5703

Subjects

Physical Sciences

•

Technology

•

Tyre Pyrolysis

•

Co-Pyrolysis

•

Carbon

•

Biomass

•

Gasification

•

Conversion

•

Fuel

•

Gas

•

Oil

•

Ink

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
ISIC  
FunderGrant Number

The authors gratefully acknowledge financial support from the Swiss National Science Foundation SNSF grant 200021_175745 - Photo Induced Charge Transfer Reaction at Molecular Interfaces: towards new routes of solar energy storage. We also thank Dr Natalia

200021_175745

Swiss National Science Foundation SNSF

Available on Infoscience
February 19, 2024
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/204295
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