Case Studies in Chemical and Environmental Engineering (Dec 2022)
Pyrolytic fuel extraction from tire and tube: Analysis of parameters on product yield
Abstract
The increasing disposal of waste tires and tubes represent a major environmental problem since they are non-biodegradable and require bulk storage space for open dumping. However, significant heating value, low ash content makes them a valuable source of energy. Pyrolysis is an environmentally friendly thermochemical process which produce useful products (oil, char, and gas) from solid wastes. The main purpose of this paper is to produce pyrolysis oil from waste tire and tube of bicycle/rickshaw by using lab scale fixed-bed internally heating reactor. Experiments were conducted to investigate the effect of reaction temperature (300–600 °C), feed size (0.5–2.0 cm3) and pyrolysis reaction time on the pyrolysis product yields. Moreover, the physiochemical properties of obtained oil also been discussed. The maximum liquid yield from the waste tire was 45.29 wt% at temperature of 450 °C with optimum sample size 1.5 cm3 and reaction time of 39 minute, while for tube pyrolysis, the maximum yields of liquid was 43.89 wt% at temperature of 550 °C with sample size of 2.0 cm3 and reaction time of 38 minute. The pyrolysis of waste tube, which is new in this study, the maximum liquid produced (43.89 wt%) is comparable with the maximum liquid yield (45.29 wt%) from tire pyrolysis. GCV obtained for tire and tube pyrolysis oil are 39.78 MJ/kg and 39.17 MJ/kg, respectively. Physiochemical properties of derived oil are comparable with that of commercial diesel fuel, and this obtained oil can be used as an alternative fuel in engine after proper treatment.
