| Abstrakt: |
Pyrolysis bio-oil has a high content of phenolic components. Phenolic components have many applications. This research aims to study the effect of temperature on the selectivity of phenolic components from pyrolysis oil palm shells. Pyrolysis was carried out at 300, 400, 500, and 600 ͦ C. The bio-oil composition was analyzed by gas chromatography-mass spectrometry (GC-MS). GC-MS analysis showed that the phenolic component was the most dominant in bio-oil. The temperature has an important role in the selectivity of phenolic components because the increasing temperature can enhance the cleavage of methoxy chains and other aromatic substitution groups. The optimum temperature for pyrolysis of oil palm shells in this study was 500 ͦ C with a phenol content of 35.89 wt.%, which is equivalent to 38.87 mg of phenol/g oil palm shell biomass and phenolic components of 50.70 wt.%. Pyrolysis of oil palm shells also produces valuable phenol derivative products such as guaiacol, creosol, p-ethyl guaiacol, o-cresol, syringol, eugenol, and xylenol with optimum yields of 2.88, 3.62, 3.86, 0.41, 5.03, 1.83, and 0.21 wt.% respectively. [ABSTRACT FROM AUTHOR] |
