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Journal of Industrial and Engineering Chemistry, Vol.6, No.5, 348-355, September, 2000
Kinetic Characterization of Thermal Degradation Process for Commercial Rubbers
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The kinetic analysis was carried out for the thermal degradation of commercial rubbers such as NR, IR, BR, SBR 1500, and SER 1700 with the intention of establishing a recovery process based on the relation between the process variables and the yield of pyrolytic oil. The activation energies and reaction orders of NR, IR, BR, SBR 1500, and SBR 1700 were calculated using conventional kinetic models. When considering the effect of the final temperature on thermal degradation, it was shown that the yield of pyrolytic oil generally increased with the increase of final temperature. When considering the effect of the heating rate, if was found that the yield of pyrolytic oil was not consistent for each sample. The pyrolytic oil was analyzed For the components, benzene, toluene, styrene, ethylbenzene, other benzene derivatives and polycyclic compounds using GC-MSD. And it was consisted of about 50 organic compounds. The calorific value of the rubber-derived oil was about 40 kJ/g, high enough to be used as a fuel.
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