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Proceedings of Symposium on Energy Engineering in the 21<sup>st</sup> Century (SEE2000) Volume I-IV

ISSN:
1-56700-132-7 (Print)

EXPERIMENTAL STUDY FOR GASIFICATION OF SCRAP TIRES

Xiu-Li Yin
Division of Clean Fuel, Guangzhou Institute of Energy Conversion Chinese Academy of Sciences

Zeng-Li Zhao
Division of Clean Fuel, Guangzhou Institute of Energy Conversion Chinese Academy of Sciences

Bing-Yan Xu
Division of Clean Fuel, Guangzhou Institute of Energy Conversion Chinese Academy of Sciences

Chuang-Zhi Wu
Division of Clean Fuel, Guangzhou Institute of Energy Conversion Chinese Academy of Sciences

Yong Chen
Division of Clean Fuel, Guangzhou Institute of Energy Conversion Chinese Academy of Sciences

D.Y.C. Leung
Department of Mechanical Engineering University of Hong Kong

Abstract

A set of laboratory apparatus with feature of fast pyrolysis and capability of continuously measuring and recording of parameters was designed and constructed. Powder of ground automotive tire was pyrolysed with the apparatus in a N2 atmosphere. The composition and properties of derived gases were determined in relation to pyrolysis temperature from 500−1000°C and different gas phase residence time. As pyrolysis temperature and gas phase residence time was increased, the mass percentage of solid char decreased, while gas productivity increased. The tires produced 41% oil, 24% gas and 35% char approximately and calorific value of the gases was about 36000kJ/Nm3 at 800°C. The gases were identified as H2, CO, CO2, CH4, C2H4, C2H6 and C3H6 in addition to lower concentrations of H2S and other hydrocarbon gases. Test results of tire pyrolysis are compared with data obtained by biomass gasification.