Description:
This research was conducted to recover useful products from waste tyre and explore the possibility of using these products as a petrochemical feedstock alternative. Waste tyre sample was pyrolyzed over three different temperatures: 400, 550 and 750 oC. The char, oil and gas yields at the three different temperatures were 62, 48, 42; 24, 36.2, 40 and 14, 15.8, 18 respectively. The char and oil yield was determined by weight measurement, while that of gas yield was determine by mass balancing. Some physical properties of the oil produced were determined, these properties include calorific value, flash and fire points, cloud and pour points, ash content as well as moisture content. The result showed that the oil produced has a calorific value of 64.44 KJ/Kg which is higher than that reported by many researchers. The flash and fire points was found to be 67 and 85 oC while the cloud and pour points were found to be 16 and -3 oC. The ash content and moisture content were also found to be 0.04 and 8.18. The composition of copper (Cu), lead (Pb), zinc (Zn), chromium (Cr), cadmium (Cd) and iron (Fe) in the oil produced as well as in the original tire sample was analyzed. The results show that the tire sample contains 0.605 Cu, 0.170 Pb, 1.019 Zn, 0.777 Cr, 0.077 Cd and 0.447 Fe while the oil sample contains 0.065 Cu, 0.090 Pb, 0.144 Zn, 2.121Cr, 0.006 Cd and 0.010 Fe. This result of this study shows that the rector used for the study is an efficient one, studies should be conducted to extrapolate it since it produced an oil with high caloric value, low ash content and also decreased the heavy metal composition when compared with original tire sample and other petroleum products