Co-pyrolysis of scrap tire and plastic using coal derived fly-ash

Akhil Mohan, Saikat Dutta, Vasudeva Madav, S. S. Bhushnoor, Javier Fernandez Garcia, P. T. Williams

Research output: Indexed journal article Conference articlepeer-review

2 Citations (Scopus)


Used automobile tires and thermoplastics (e.g. polypropylene) have become liability of modern societies and several avenues have been explored for their suitable disposal. Pyrolytic liquefaction of tires and plastics have attracted significant attention since the process can provide value-added products such as liquid transportation fuels and chemicals while mitigating the waste disposal issues. Pyrolysis can be done both in absence (thermal) or presence (catalytic) of a catalyst. Catalytic pyrolysis is favored by less demanding reaction conditions and better quality of product. Catalytic copyrolysis has the additional advantage in using a wider feedstock and a possible synergistic effects from different feeds during molecular transformations. This work investigates the effect of untreated fly-ash (class F) as catalyst for the copyrolysis of scrap tire and polypropylene at 300o C and atmospheric pressure using batch type pyrolysis reactor and also studied the effect of fly-ash during pyrolysis of scrap tire using Pyro-GC/MS. Copyrolysis was carried out using various ratio of scrap tire and polypropylene at 300o C, whereas the pyrolysis of scrap tire in pyro-GC/MS was carried out at 500o C. The maximum yield (23.33%) of oil was obtained at a ratio of 60:40 (w/w) of scrap tire and polypropylene in presence of 20wt% of fly ash catalyst. The oils were characterized by NMR, GC-MS, FT-IR and elemental analysis.

Original languageEnglish
Pages (from-to)1501-1506
Number of pages6
JournalEuropean Biomass Conference and Exhibition Proceedings
Publication statusPublished - 2019
Externally publishedYes
Event27th European Biomass Conference and Exhibition, EUBCE 2019 - Lisbon, Portugal
Duration: 27 May 201930 May 2019


  • Fly-ash
  • Plastic
  • Pyro-GC/MS
  • Pyrolysis
  • Scrap tire


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