Experimental analysis of waste tyres as a sustainable source of energy

Abstract

Nowadays, the stability of energy supply that additionally should be sustainable is one of the most important global issues. Thus, many new potential energy sources are being investigated. Since automobile industry is growing, a huge amount of waste tyres (WT) occur each year. Pyrolysis of scrap tyres can be considered as a sustainable way to recover significant amounts of energy as well as the valuable materials. Potential of waste tyres in the energy sector is studied in this work. Proximate, ultimate and thermogravimetric (TG) analysis of mechanically grounded WT sample was done. Waste tyres feature high heating value combined with carbon content as high as 87.90 % (on dry ash-free basis). Additionally, TG analysis allows to choose optimal operating temperature for pyrolysis process which is between 350 and 500°C. However, the sulphur content is also relatively high – around 2 wt.% - and it is the most important challenge for utilizing this waste in a thermochemical way.

Waste tyre pyrolysis – Impact of the process and its products on the environment

“…Overall, the investor focused on oil production probably will choose the higher process temperature, because the aggregated production from a defined amount of waste tyres (yields of oil × concentration of particular chemicals) is beneficial, and it allows the avoidance of a much higher by-production of char. Moreover, 600°C was described as an optimal waste tyre pyrolysis temperature according to the kinetics of the process [64].…”

An Overview of the Utilization of Common Waste as an Alternative Fuel in the Cement Industry

“…Calorific value (MJ/kg) [37] 35.50 [51] 37.10 [52] 31.00 [53] 31.40 [54] 31.80 [1] 27.00 [55] 31.40 [56] 31.88 [9] 29.71 amount of waste tire ash produced after incineration is around 7%. In addition, another possible reason is due to the composition of waste tire ash, as shown in Table 2.…”

Performance of soil-matrix composite reinforced with recycled shredded fibers from waste tires

“…Then, from 300 up to 570 °C, the weight loss associated with the rubber degradation was observed. The DTA curve indicated distinct peaks at about 420, 480, and 490 °C, corresponding to the degradation of the major rubber components of the tire, such as styrene-butadiene rubber (SBR), natural rubber (NR), and polybutadiene rubber (BR) [21,40,47,48]. Shredded tire fiber image analysis: Fig.…”