Recycle process and industrial use of pyrolytic oil from waste tire pyrolysis

ABSTRACT

With the developments in the automotive sector and the increase in the number of automobiles, the need to dispose of expired tires has also increased. Operations such as the storage and transportation of waste tires without harming the environment cause great costs. The present study investigated the availability of products that can be obtained through thermochemical processes from waste tires that have reached the end of their lifespan. The tires were pyrolyzed in an inert gas environment at high temperatures to obtain pyrolytic oil, carbon black, and gas. It was aimed at increasing the product quality by adding different brands of sediment crushers and 2-ethyl-hexyl-nitrate from different countries at various ratios to the pyrolytic oil obtained. The RON and MON values of the product were 92.8 and 78.9, respectively. These results show that it is possible to improve the light product fraction to be close to gasoline specifications by blending with conventional gasoline fuel. Moreover, the product has a density of 989.9 kg/m3 and can be blended with marine fuels by the relevant standards with 4.68% carbon residue values, so that pyrolysis fuel can also find use in the shipping industry. Waste gas, one of the outputs of the pyrolysis process, was also evaluated within the scope of this study. It was mixed with pyrolysis fuel and used for fuel enrichment (80% pyrolytic oil + 20% pyrolytic gas). Although it produces less torque and power than conventional diesel fuel, it is concluded that the combustion characteristics of the engine can be improved compared to the use of pyrolytic oil alone as fuel. Because of the study, an alternative fuel was obtained by evaluating both the disposal of waste tires and the liquid and gaseous components released as a result of disposal.

KEYWORDS:

• End-of-life tires
• pyrolysis
• pyrolytic oil
• diesel fuels
• recycle
• recovery
• sustainability

Disclosure statement

No potential conflict of interest was reported by the author(s).

Author contributions

İlayda Andaç: Conceptualization, Methodology, Validation, Investigation, Resources, Writing – Original Draft. Serkan Arslan: Writing – Review & Editing, Visualization. Murat Eyvaz: Writing – Original Draft. Review & Editing, Visualization. Yaşar Kahraman: Investigation, Review & Editing. Celal Caner: Investigation, Writing – Original Draft. Hüseyin Altundağ: Conceptualization, Data Curation, Supervision, Project administration, Funding acquisition. All authors reviewed the manuscript.

Data availability statement

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

Additional information

Funding

The author(s) reported there is no funding associated with the work featured in this article.

Notes on contributors

Ilayda Andac

Ilayda Andac graduated from Sakarya University, Department of Chemistry. She is an MSc chemist in the automotive industry. Her research interests include the management of waste and energy recovery.

Serkan Arslan

Serkan Arslan is a PhD Researcher at Gebze Technical University in Kocaeli/TURKEY. His research interests include quality management systems and membrane processes in water and wastewater treatment. He is also an R&D manager in an environmental technologies company.

Murat Eyvaz

Murat Eyvaz is an Associate Professor of the Environmental Engineering Department at Gebze Technical University. His research interests are applications in water and wastewater treatment facilities, electrochemical treatment processes, membrane processes, and chromatographic analyses.

Yasar Kahraman

Yasar Kahraman is an Associate Professor of the Mechanical Engineering Department at Sakarya University. His research interests are computer aided design, computer software (software engineering), and aerospace transportation.

Celal Caner

Celal Caner is a PhD Research Assistant at Sakarya University, Department of Chemistry in Sakarya/TURKEY. His research interests are chemical instrumental analyses, fuel technologies, energy management, and waste management technologies.

Huseyin Altundag

Huseyin Altundag is a Full Professor of Chemistry Department at Sakarya University. He is also the director of the Biomedical, Magnetic, and Semiconductor Materials Application and Research Center at Sakarya University. His research interests are chemical instrumental analyses, environmental chemistry, clean production, and energy management.