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Study on The Thermochemical Degradation Features of Empty Fruit Bunch on The Function of Pyrolysis Temperature

반응온도에 따른 팜 부산물(empty fruit bunch)의 열화학적 분해 특성에 관한 연구

  • Received : 2015.11.30
  • Accepted : 2016.01.18
  • Published : 2016.05.25

Abstract

We performed fast pyrolysis of empty fruit bunch (EFB) in the range of temperature from $400{\sim}550^{\circ}C$ and 1.3 s of residence time. The effect of temperature on the yields and physicochemical properties of pyrolytic products were also studied. Elemental and component analysis of EFB showed that the large amount of potassium (ca. 8400 ppm) presents in the feedstock. Thermogravimetric analysis suggested that the potassium in the feedstock catalyzed degradation of cellulose. The yield of bio-oil increased with increasing temperature in the range of temperature from $400{\sim}500^{\circ}C$, while that of gas and biochar decreased and showed monotonous change each with increasing temperature. When the EFB was pyrolyzed at $550^{\circ}C$, the yield of bio-oil and char decreased while that of gas increased. Water content of the bio-oils obtained at different temperatures was 20~30% and their total acid number were less than 100 mg KOH/g oil. Viscosity of the bio-oils was 11 cSt (centistoke), and heating value varied from 15 to 17 MJ/kg. Using GC/MS analysis, 27 chemical compounds which were classified into two groups (cellulose-derived and lignin-derived) were identified. Remarkably the concentration of phenol was approximately 25% based on entire chemical compounds.

Keywords

biomass;empty fruit bunch;fast pyrolysis;bio-oil

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Cited by

  1. Effect of Inorganic Constituents Existing in Empty Fruit Bunch (EFB) on Features of Pyrolysis Products vol.44, pp.5, 2016, https://doi.org/10.5658/WOOD.2016.44.5.629

Acknowledgement

Supported by : 국가과학기술연구회, 산림청