Investigating the Influence of Biochar Catalyst in the Pyrolysis Process of Waste Tire to Produce Fuel

Document Type : Research Article


Faculty of Chemical and Petroleum Engineering, University of Tabriz, I.R. IRAN


In this research, the pyrolysis of waste in the tires has been investigated in the vicinity of biochar catalysts that are produced by the gasification process of poplar. For this aim, 25 grams of sample were loaded in a laboratory-sized reactor and pyrolysis of the samples was carried out at 500°C at atmospheric pressure. The results showed that the biochar catalyst can change the characteristics of the products produced. In the case of gaseous products, the catalyst had no significant effect on the amount of CO, CO2, and H2. However, it increased C3H8 and decreased C2H6 contents. Biochar catalysts reduced the content of aromatics while increasing the linear compounds, indicating the tendency of biochar catalysts to convert aromatics into linear compounds such as alkanes and alkenes. It also had a strong tendency for the deoxygenation of the tar. By using biochar as a catalyst, the char obtained included high content of aromatics. The DTG analysis of the char samples showed that the char molecular structure of the catalytic pyrolysis process is heavier and tidier. XRD analysis of the catalyst also showed that a layer of carbon material (coke) was sitting on the catalyst surface, which was resulting from the polymerization of aromatic compounds present in the volatiles produced in the pyrolysis process.


Main Subjects

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