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This paper presents End of Life Tires (ELT) pyrolysis results in two batch reactors with different configurations. The first setup is constituted of a pyrolyser with 17 cm of diameter and 17 cm of cylindrical height. An external electrical heater was used for heating the circumferential walls and the bottom of the pyrolyser. It can reach 400 Watts. The mass used was equals to 100 g. The second setup is bigger than the first one. It consists of a cylindrical fixed-bed reactor made of stainless steel with an internal diameter of 160 cm and a height of 250 cm. The reactor is placed in an enclosure heated by an electric furnace. The reactor heating power is controllable and may reach 5 kilowatts. It allows only the heating of the pyrolyser circumferential walls. We used 300 g. The heating rate was fixed to 10 °C/min and the Nitrogen N2 flow rate to QN2 equals to 40 ml/min. The Thermo-Gravimetric analysis TGA shows that the maximal degradation temperature is approximately equals to 400 °C and the volatile yield (gases and liquid) is 60.35 wt.%. It is found that the End of Life Tires pyrolysis produce 30.53 wt.% of Tire Derivative Oil (TDO) using setup 1 and 34.37 wt.% using setup 2. The tire-derived oils properties i.e. the density, the viscosity and the higher calorific value HCV are measured and compared to other commercial oils.

Waste tires represent a disposal problem, environmental problem. To solve this problem and to upgrade this waste, several technologies are adopted such as pyrolysis. This technology produces a liquid that could replace other fuels. In this paper an experimental investigation is carried out to study the effect of the catalysts on biofuel. Two different percentages of catalysts have been used i.e. 10% and 20%. Experiments were carried out in a semi-batch reactor under atmospheric pressure. The properties of the products measured are the viscosity, the gross calorific value and the acid value. Identification of gas and liquid products is made by GC and GC-MS respectively. It is found that the waste tires allow obtaining a liquid yield equal 30.53 wt.% and is the same with 20% of the catalysts but it increases to 32.77 wt.% with 10% of catalysts. This liquid presents close characteristics to gasoline and kerosene.