Title: Energetic valourisation of waste tyres by pyrolysis: catalyst effect on tyres derived oil and gases

Authors: Hiba Rejeb; Emna Berrich; Mohamed Hachemi Chahbani; Fethi Aloui

Addresses: Process Engineering and Industrial Systems Laboratory LR11ES54, Engineering School of Gabes ENIG, University of Gabes, 6072 Gabes, Tunisia ' LUNAM University, University of Nantes, CNRS, GEPEA, UMR 6144, Institute Mines-Telecom IMT, 4 rue Alfred KASTLER – BP 20722 44307 Nantes Cedex 03, France ' Process Engineering and Industrial Systems Laboratory LR11ES54, Higher Institute of Applied Sciences and Technology of Gabes (ISSAT), University of Gabes, 6072 Gabes, Tunisia ' Polytechnic University Hauts-de-France (UPHF), LAMIH CNRS UMR 8201, Campus Mont Houy, F-59313, Valenciennes Cedex 9, France

Abstract: In this paper, an experimental investigation is carried out to study the zeolite catalyst ZSM5 effects on pyrolysis tyres derived oil TDO and gases. Two percentages of zeolite catalyst have been chosen, i.e., 10% and 20%. Experiments were carried out in a semi-batch reactor under inert atmosphere. The tyres wastes pyrolysis without catalyst gives TDO yield equal to 30.53 wt.%. It increases to 32.77 wt.% while using 10% of ZSM5. The TDO characteristics are closer to diesel and kerosene ones. For example, its viscosity is nearly 1 (cP) at 40°C like kerosene. Its density is in the diesel range, i.e., between 870-1,000 kg/m³. Pyrolytic gases volumetric percentages are determined using micro-gas chromatography analyser. The gas yields were between 11.45 wt.% and 17.75 wt.% for all the experiments. Hydrogen and methane are the main component on the TW pyrolytic gases.

Keywords: wastes; energetic valourisation; pyrolysis; catalyst; fuel; gas; micro-gases chromatography and calorimetric analysis.

DOI: 10.1504/IJGW.2020.106593

International Journal of Global Warming, 2020 Vol.20 No.3, pp.187 - 202

Received: 30 Apr 2019
Accepted: 18 Sep 2019
Published online: 15 Apr 2020 *

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