Disposal of scrap tyres is a major environmental problem. The most promising solution of this complex issue is tyre derived fuel. Pyrolysis process is used to do the same. In this presentation pyrolysis process is explained. When pyrolysis on scrap tyres is done then three products are obtained: oil, pyro gas, and char. A pyro gas used as energy source for pyrolysis reactor and char used to provide strength for structural applications, and oil is used as fuel, this indicates the proper utilization of scrap tyre. Properties of TPO was compared to standard fuel and found similarities. And noticed blending of TPO with Jatropha methyl ester makes it an alternate for fuel.

1. PYROLYSIS OF
SCRAP TYRES
By-
Vishista Kaushik
M.Tech. (Production Engineering)

2. CONTENTS
 Introduction
 Pyrolysis
 Proper utilization of scrap tyres
 Pyrolysis process
 Schematic diagram of pyrolysis of scrap tyres
 Product
 Tyre pyrolysis oil
 Comparison
 Conclusion
 Reference

3. Scrap Tyres
 Disposal of waste tyres becoming complex.
 In the world, India is the third largest producer, fourth
largest consumer of natural rubber and fifth largest
consumer of synthetic rubber.
 Disposal of waste tyre has become a major
environmental problem.
Introduction

4. Emission of Pollutants
and obnoxious gases
Water Contamination
More land fillings
requirement sites
Breeding of insects,
mosquitoes etc.
Soil Pollution
(4)
(5)
(3)
(2)
(1)
(1) https://www.bsvtyres.com.au/blog/do-not-burn-old-tyres
(2) , (3) , (4), (5) https://www.slideshare.net/CAVijayKothari/10-tyre-ppt
Problems caused by improper
treatment of waste tyres

5.  Reuse
– Retreading
 Recycling
– floor mats, belts, gaskets, shoe soles, etc.
 Tyre derived fuel
Scrap Tyres Management

6.  Increase in fuel demand
 Fuel Prices continuously increasing
 World’s fossil fuel stocks expected to last another 80-120 years
only
 Pollution control: Converting waste tyre into fuel & charcoal
Why Pyrolysis ?

7.  Pyro = Heat
 Lysis = Breakdown
https://www.wastetireoil.com/Pyrolysis_faq/Pyrolysis_Plant/plastic_and_tire_pyrolysis_565.html
Pyrolysis

8. https://www.sciencedirect.com/science/article/abs/pii/S0956053X13002122
Proper utilization of tyres

9. Distillation and Purification
Pyrolysis Oil + Carbon Black+ Gas
De-polymerisation
Heating + Catalysis
Cutting and Shredding
Collection of Scrap Tyres
Pyrolysis Process

10. https://www.bioenergyconsult.com/pyrolysis-of-scrap-tires/
Systematic diagram of pyrolysis
of scrap tyres

11. Tyre Pyrolysis Oil Carbon Black
(Char)
Pyro Gas
https://www.researchgate.net/figure/MGW-Pyrolysis-products-Bio-oil-Bio-char-Syn-gas_fig2_282201521
Product

12.  TPO is a Hydrocarbon liquid generated
by de-polymerisation of waste tyres.
 Applications: In electric generators,
boilers, diesel pumps, furnaces, hot
water generators, hot air generators,
thermic fluid heater etc.
https://wastepyrolysisplant.net/waste-tyre-pyrolysis-plant-project-report.html
Tyre pyrolysis oil

13. [3]
Comparison

15. Jatropha methyl ester (JME), whose cetane number (50 – 58.4)
has marginally higher than diesel was blended at different
proportions with TPO.
So, that the TPO can be used as an alternative fuel. JMETPO20
gives the optimum result.
Proposed Solutions

16.  It is concluded proper utilisation of tyre is possible.
 Pyrolysis is one of the simplest methods to recycle the
waste automobile tyres in to useful energy.
 TPO can be considered as an alternative fuel.
Conclusion

17. REFERENCES
[1] S.T. Kumaravel , A. Murugesan, A. Kumaravel .Tyre pyrolysis oil as
an alternative fuel for diesel engines – A review. Renewable and
Sustainable Energy Reviews.2016;60:1678–1685
[2] Sharma Abhishek and S Murugan. Investigation on the behaviour of
a DI diesel engine fueled with Jatropha Methyl Ester (JME) and Tyre
Pyrolysis Oil (TPO) blends 2013;108 : 699–708
[3] Bhatt Prathmesh M, Patel Paresh D. Suitability of tyre pyrolysis oil
(TPO) as an alternative fuel for internal combustion engine.
International Journal of Advanced Engineering Research and
Studies.2012; I:4:61-65
[4] Yaning Zhang, Roger Ruan Gasification Technologies and their
energy potentials. Sustainable resource recovery and zero waste
approaches 2019; 193-206