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Received December 22, 2010
Accepted March 14, 2011
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Effect of heating rate on pyrolysis of low-grade pyrolytic oil
New and Renewable Energy Research Division, Korea Institute of Energy Research, Daejeon 305-343, Korea 1Department of Nano-Bio Chemical Engineering, Hannam University, 461-6 Junmin-dong, Yusung-gu, Daejeon 305-811, Korea
choi1002@hotmail.com
Korean Journal of Chemical Engineering, June 2011, 28(6), 1468-1473(6), 10.1007/s11814-011-0065-x
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Abstract
The low-grade pyrolytic oil produced from pyrolysis of municipal plastic waste in a commercial rotary kiln reaction system cannot be an acceptable fuel oil due to its low quality. Thus, the degradation of pyrolytic oil was conducted in a bench scale batch reactor, which was done by two experiment conditions of high heating rate (about 7℃ /min) and low heating rate (1.5-3.6 ℃/min) up to 420 ℃ of reaction temperature. The characteristics of raw pyrolytic oil were examined and also the characteristics of products obtained by different heating rates were compared. Raw pyrolytic oil had higher H/C ratio and higher heating value than commercial oils, and also its peak range in GC analysis showed wide distribution including all the range of gasoline, kerosene and diesel. In the upgrading of pyrolytic oil, cumulative amount profile of product oil, as a function of reaction time, was similar in shape to the degradation temperature_x000D_
profile. All product oils obtained by different degradation temperature had higher H/C ratio and slightly higher heating value than those of raw pyrolytic oil. Also, the characteristics of product oils were influenced by heating rate and reaction temperature.
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References
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Fuels purification apparatus and pyrolysis system, Korea Institute of Energy Research, Patent No. 0736845 (2007)
Upgrading technology for pyrolysis oil of polymer wastes, Korea Institute of Energy Research (2007)
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