Empty fruit bunches (EFB) contain approximately 32.5% of lignin, which is potentially utilized as a source of energy and fine chemicals. In this study, lignin was isolated from EFB by organosolv method, and then analyzed and characterized. The result of compositional analysis showed the isolated lignin purity was 98.8%. The obtained lignin was then depolymerized in liquid phase at various reaction temperatures over a ruthenium metal catalyst supported on TiO_2. The optimum temperature of the depolymerization reaction was obtained at a temperature of 280 °C with a total concentration of aromatic monomers was 4.2 mM.
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