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A Study of Temperature and Residence Time Influence on Waste Tire Pyrolysis Products Yield

Nawaf Al-Selwi

Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China.

*Corresponding author: Nawaf Al-Selwi

Published: March 7,2023


Pyrolysis is a sufficient method for recycling waste tire into useful energy by-products Pyrolytic oil and char. In this study, a waste tire sample was used to study the effect of the temperature and residence time as well as the combined effects on the Pyrolytic oil and char yields during the pyrolysis process. Waste tire sample was pyrolyzed at three distinct temperatures 400, 450, and 500°C, with 30, 45, and 60 minutes’ residence time. Each batch weighed 50 g of sample, the heating rate for each experiment kept constant at 5°C/min. After the pyrolysis product yields were determined for all of samples, a regression model that predicts product yield as functions of temperatures with residence time analysis using factorial experiment design (ANOVA) research was performed to test the significance of temperature and residence time influence on products yield. The findings of this study reveal that the sample was completely decomposed at 450°C, the Pyrolytic oil yield is obtained maximum that is 24wt% at temperatures of 450°C with a pyrolysis residence time of 60 minutes, and char was achieved maximum that is 41.94wt.% at temperature of 450°C with a residence time of 30 minutes. The yield of Pyrolytic oil increases with temperature range increasing from 400°C to 450°C, but decreasing when temperature increase from 450°C to 500°C. Char yield decreases with temperature range increase from 400°C to 500°C. Temperature and residence time interacts to affect the Pyrolytic oil. At 500°C, char yield remains nearly constant from 30min to 60min. Temperature and residence time interactions does not affect char yield. The regression model analysis shows that the temperature is highly significant factor on products yields.


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How to cite this paper

A Study of Temperature and Residence Time Influence on Waste Tire Pyrolysis Products Yield

How to cite this paper: Nawaf Al-Selwi. (2023). A Study of Temperature and Residence Time Influence on Waste Tire Pyrolysis Products Yield. Engineering Advances3(1), 69-83.