Abstract
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.
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