Hydrocracking of Mefa Rubber Seed Oil into Biofuels Fraction with Co and CoMo Metals Supported on Zeolite Catalyst

: This research was aimed to produce biofuel fraction from rubber seed oil by using synthetic Zeolite Y (ZY), Co/ZY and CoMo/ZY catalyst. The insertion of metal used a wet impregnation method. Furthermore, in order to produce a good catalyst, the oxidation and reduction process at 500 o C using oxygen and nitrogen gases at approximately 2 hours were performed. Then, the effect of addition of ZY, Co/ZY and CoMo/ZY had been investigated at catalytic hydrocracking using metyl ester fatty acid (MEFA). The reaction was conducted at 450 o C with ratio of catalyst:feed of 1:4 and 20 mL/sec with hydrogen gas flow. Moreover, the characterization of catalyst depicted that no significant changes in wavenumber of TO4 groups and a crys-tallinity of catalyst. Then, the crystal system of ZY and Co/ZY was indicated as monoclinic while CoMo/ZY was revealed as triclinic. The surface area, pore volume and mean pore of catalysts revealed an increase trend as a result of Co and Mo impregnation. These trends have also been proven with SEM analysis which was shown an equal spreading of metals in the catalysts. Furthermore, the highest result of catalytic performance among catalysts was shown by CoMo/ZY with 59.45% of bio-gasoline. To sum up, the impregnation of Co and CoMo in Zeolit Y depicted a well-effect on its selectivity into bio-gasoline product.