Continuous thermal degradation of pyrolytic oil in a bench scale CSTR reaction system |
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Authors: | Kyong Hwan Lee Ki Yun Nam |
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Affiliation: | Climate Change Technology Research Division, Korea Institute of Energy Research, 102 Gajeong-ro, Yuseong-gu, Daejeon 305-343, Republic of Korea |
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Abstract: | Continuous thermal degradation of two pyrolytic oils with low (LPO) and high boiling point distribution (HPO) was conducted in a constant stirrer tank reactor (CSTR) with bench scale. Raw pyrolytic oil as a reactant was obtained from the commercial rotary kiln pyrolysis plant for municipal plastic waste. The degradation experiment was conducted by temperature programming with 10 °C/min of heating rate up to 450 °C and then maintained with long lapse time at 450 °C. Liquid product was sampled at initial reaction time with different degradation temperatures up to 450 °C and then constant interval lapse time at 450 °C. The product characteristics over two pyrolytic oils were compared by using a continuous reaction system. As a reactant, heavy pyrolytic oil (HPO) showed higher boiling point distribution than that of diesel and also light pyrolytic oil (LPO) was mainly consisting of a mixture of gasoline and kerosene range components. In the continuous reaction, LPO showed higher yield of liquid product and lower residue than those of HPO. The characteristics of liquid products were influenced by the type of raw pyrolytic oil. Also, the result obtained under degradation temperature programming was described. |
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Keywords: | Light and heavy pyrolytic oils Thermal degradation Characteristics of liquid product Continuous reaction |
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