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Pyrolytic characteristics of Jatropha seedshell cake in thermobalance and fluidized bed reactors

  • Polymer, Industrial Chemistry, Fluidization, Particle Technology
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Abstract

Pyrolytic kinetic parameters of Jatropha seedshell cake (JSC) were determined based on reaction mechanism approach under isothermal condition in a thermobalance reactor. Avrami-Erofeev reaction model represents the pyrolysis conversion of JSC waste well with activation energy of 36.4 kJ mol−1 and frequency factor of 9.18 s−1. The effects of reaction temperature, gas flow rate and feedstock particle size on the products distribution have been determined in a bubbling fluidized bed reactor. Pyrolytic bio-oil yield increases up to 42 wt% at 500 °C with the mean particle size of 1.7 mm and gas flow rate higher than 3U mf , where the maximum heating value of bio-oil was obtained. The pyrolytic bio-oil is characterized by more oxygen, lower HHVs, less sulfur and more nitrogen than petroleum fuel oils. The pyrolytic oil showed plateaus around 360 °C in distribution of components’ boiling point due to high yields of fatty acid and glycerides.

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Authors and Affiliations

  1. Catalyst & Process R&D Center, SK Innovation, 140-1, Wonchon-dong, Yuseong-gu, Daejeon, 305-712, Korea

    Sung Won Kim

  2. Department of Chemical and Biomolecular Engineering, Energy and Environmental Research Center, Korea Advanced Institute of Science and Technology (KAIST), 373-1, Guseong-dong, Yuseong-gu, Daejeon, 305-701, Korea

    Dong Kyoo Park & Sang Done Kim

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  1. Sung Won Kim
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  2. Dong Kyoo Park
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  3. Sang Done Kim
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Correspondence to Sang Done Kim.

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Kim, S.W., Park, D.K. & Kim, S.D. Pyrolytic characteristics of Jatropha seedshell cake in thermobalance and fluidized bed reactors. Korean J. Chem. Eng. 30, 1162–1170 (2013). https://doi.org/10.1007/s11814-013-0015-x

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  • DOI: https://doi.org/10.1007/s11814-013-0015-x

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