| 초록 |
Phenol is currently produced from fossil resources, but it can also obtained from renewable resources such as lignin. In this study, thermal and thermo-oxidative degradation of palm kernel shells (PKS) were performed using a two-stage pyrolyzer consisting of auger (AR) and fluidized bed reactors (FBR) to produce a phenol-rich oil. Temperature ranges of the FBR were 500–650 °C, while the AR temperature was fixed at 300 °C. The FBR produced a phenol-rich bio-oil. Phenol content increased with increasing FBR temperature. In the thermo-oxidative degradation, small amounts of oxygen were added to the fluidizing medium. At 1.5% (v/v) of oxygen and at the FBR temperature of 550 °C, a bio-oil with a very high phenol content (23 wt.%) could be obtained. Bio-oil with such a high phenol content could be used for synthesis of renewable phenolic resin. |
