1 Department of Energy Science and Engineering, Khulna University of Engineering & Technology, Khulna-9203, Bangladesh

2 Department of Chemical Engineering, Z. H Sikder University of Science & Technology, Shariatpur, Bangladesh

3 Designated Reference Institute for Chemical Measurements, Bangladesh Council of Scientific & Industrial Research, Dhaka, Bangladesh


In this research, the effect of ZSM-5 zeolite catalyst was investigated in the thermal pyrolysis of catalysis of waste tires in Bangladesh. The tires of bus and trucks were pyrolysed in a fixed bed reactor and the derived pyrolysis gases were passed through a condenser. The main objective of this study was to investigate the effect of ZSM-5 on the composition of pyrolytic waste tires oil. The influences of pyrolysis temperature, catalyst-tires (CT) ratio on the production of the derived products were also investigated. While the catalyst-tire (CT) ratio and the pyrolysis temperature were increased the production of char and oil increased but the production of gas was in decreasing trend. Moreover, the CHNS analysis revealed that the percentage of carbon increased from 86.81% to 88.60% and the percentage of sulfur decreased from 1.325% to 1.064% while the catalyst-tire ratio was increased from 0.1 to 0.15. It was noticed from the GC-MS data that the certain aromatic compounds were a high  amount as the catalyst-tire ratio was increased gradually The presence of toluene and O-xylene in pyrolytic oil of waste tires increased significantly with a 0.15 CT ratio and this pyrolytic oil would be potentially used as chemical feedstock in different  industries.


1.     Williams, P.T. and R.P. Bottrill, 1995. Sulfur-polycyclic aromatic hydrocarbons in tyre pyrolysis oil. Fuel, 74(5): 736-742.
2.     Islam, M.R., M. Parveen and H. Haniu, 2010. Properties of sugarcane waste-derived bio-oils obtained by fixed-bed fire-tube heating pyrolysis. Bioresource Technology, 101(11): 4162-4168.
3.     Islam, M.R., M. Tushar and H. Haniu, 2008. Production of liquid fuels and chemicals from pyrolysis of Bangladeshi bicycle/rickshaw tire wastes. Journal of Analytical and Applied Pyrolysis, 82(1): 96-109.
4.     Cunliffe, A.M. and P.T. Williams, 1998. Composition of oils derived from the batch pyrolysis of tyres. Journal of Analytical and applied Pyrolysis, 44(2): 131-152.
5.     Dıez, C., O. Martınez, L. Calvo, J. Cara and A. Morán, 2004. Pyrolysis of tyres. Influence of the final temperature of the process on emissions and the calorific value of the products recovered. Waste Management, 24(5): 463-469.
6.     Laresgoiti, M., B. Caballero, I. de Marco, A. Torres, M. Cabrero and M. Chomón, 2004. Characterization of the liquid products obtained in tyre pyrolysis. Journal of Analytical and Applied Pyrolysis, 71(2): 917-934.
7.     Pakdel, H., C. Roy, H. Aubin, G. Jean and S. Coulombe, 1991. Formation of dl-limonene in used tire vacuum pyrolysis oils. Environmental science & technology, 25(9): 1646-1649.
8.     Hossain, M.S., and Rahman, A. N. M. M., 2017. Catalytic Pyrolysis of Tyre Wastes for Liquid Fuel. Iranica Journal of Energy and Environment, 8(1): 88-94.
9.     Hossain, M.S. and A.M. Rahman, 2015. Production of Liquid Fuel from Pyrolysis of WasteTires. International Journal of Scientific & Engineering Research, 6(11).
10.   Roy, C., A. Chaala and H. Darmstadt, 1999. The vacuum pyrolysis of used tires: End-uses for oil and carbon black products. Journal of Analytical and Applied Pyrolysis, 51(1): 201-221.