期刊
CHEMICAL INDUSTRY & CHEMICAL ENGINEERING QUARTERLY
卷 22, 期 3, 页码 249-254出版社
ASSOC CHEMICAL ENG
DOI: 10.2298/CICEQ150609038A
关键词
tire pyrolysis oils; pyrolysis fuels; desulfurization; oxidative desulfurization
This paper presents a low cost method for the purification of oils obtained from the pyrolysis of used tires. Oxidative desulfurization is a promising route for purification of tire pyrolysis oils as hydro-desulfurization may not be affordable for small scale industries. Different additives and acids have been employed for the enhancement of properties of pyrolytic oils. The experimental conditions were kept identical throughout, i.e., atmospheric pressure and 50 degrees C temperature for comparison of performance of various additives. The use of hydrogen peroxide-acetic acid mixture (10 wt.%) was found more economical and effective in desulfurization and improvement of fuel properties of sample oils. The contribution of sulfuric acid in desulfurization and decreasing viscosity was also satisfactory but due to the high price of concentrated sulfuric acid its use may not be economical. Calcium oxide and Fuller's earth was not found to be effective in desulfurization. The results indicate that oxidative desulfurization could render tire pyrolysis oils suitable for blending as heating fuel.
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