Partial Hydrogenation of Palm Oil-Derived Biodiesel Over Pd/C Catalysts
Biodiesel upgrading by partial hydrogenation of polyunsaturated fatty acid methyl esters (FAMEs) derived from
palm oil has been investigated on Pd/C catalysts prepared by incipient wetness impregnation (IWI). The effects of type of
carbon support [activated carbon and carbon aerogel] and size of support on the catalytic behavior of the Pd/C catalyst were
studied. The XRD, BET, FE-SEM, TEM, and CO-chemisorption techniques were used to examine the prepared catalysts. The
results showed that Pd supported on different types of carbon support, which possess different pore structures, exhibit different
Pd particle size and Pd dispersion that correlate with hydrogenation activity. In addition, particle size of the activated carbon
support also has an important effect on the activity of the catalysts. The hydrogenation activity was in this order: Pd/≤40 μm >
Pd /850 μm > Pd/granule.
Keywords— Partial Hydrogenation, Pd/C, Biodiesel, Oxidative Stability.