Jornal de Biorremediação e Biodegradação

Abstrato

Characterization of Fe₂O₃/FeOOH Catalyzed Solvolytic Liquefaction of Oil Palm Empty Fruit Bunch (EFB) Products

Sarani Zakaria, Tze Khong Liew, Chin Hua Chia, Fei Ling Pua, Fan Suet Pin, Rasidi Roslan, Umar Adli Amran, Antje Potthast, Thomas Rosenau2 and Falk Liebner

The addition of Fe₂O₃/FeOOH nanoparticles as a catalyst in solvolytic liquefaction of oil palm empty fruit bunch (EFB) could be cheaper and efficient alternative for biomass industry in Malaysia. Fe₂O₃/FeOOH can be found naturally in limonite ores and it is cheap, but work efficiently in catalyzing liquefaction. The purpose of this study is to understand the effects on the combination of Fe₂O₃/FeOOH, as the catalyst in solvolytic liquefaction of EFB. Solvolytic liquefaction of EFB fiber, with and without Fe₂O₃/FeOOH, was carried out in the nitrogen gas atmosphere using an autoclave. This liquefaction mainly yielded solvolytic oil, n-hexane insoluble preasphaltene and asphaltene phase (PA+A), and solid residue. The presence of catalyst has significantly increased the liquefaction yield and solvolytic oil fraction. Chemical elemental analysis has showed that the products with lower oxygen content are obtained when Fe₂O₃/FeOOH is used. FT-IR spectroscopy proved that the conversion of the higher molecular compound to the lower molecular compounds with larger number of functional groups has occurred. The analytical Pyrolysis-GCMS revealed the existence of lower molecular weight alcohols, ketones, phenolic and aromatic compounds.