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Thermal degradation of heavy pyrolytic oil in a batch and continuous reaction system

Journal of Analytical and Applied Pyrolysis
Publication Date
DOI: 10.1016/j.jaap.2009.08.004
  • Heavy Pyrolytic Oil
  • Degradation
  • Characteristics Of Product Oil
  • Batch And Continuous Reaction
  • Computer Science


Abstract Degradation of heavy pyrolytic oil obtained from a commercial rotary kiln pyrolysis plant for municipal plastic waste was conducted in batch and continuous reaction systems. The experiment was conducted by temperature programming with a 10 °C/min heating rate up to 450 °C and then maintained for a specific time at 450 °C. The product oil was sampled at different degradation temperatures with a specific interval of elapsed time of reaction. In this study, the characteristics of product oil obtained in both batch and continuous reaction systems were compared, according to degradation temperature and elapsed time at 450 °C. Raw pyrolytic oil showed a wide boiling point distribution from around 10 carbon number to about 35 and a high heating value, relative to of those of commercial oils (gasoline, kerosene, and diesel). In the two reaction systems, the characteristics of product oils were influenced by degradation temperature and elapsed time. Moreover, heavy hydrocarbons showed greater cracking at high degradation temperature and long elapsed time into light hydrocarbons as gasoline components range. Also, the continuous reaction system showed different characteristics of product oil, compared with those of the batch reaction system, such as the cumulative amount distribution, production rate, and carbon number distribution of the product oil, as a function of degradation temperature and elapsed time.

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