PERENGKAHAN KATALITIK METIL ESTER DARI MINYAK LIMBAH CAIR PABRIK MINYAK KELAPA SAWIT DENGAN KATALIS Cr/Mo/HZA DAN Ni/Mo/HZA

Agus Sundaryono, Dewi Handayani, Budiman , Sherly Winda TIP

Abstract


The proposed catalytic cracking technology leads to the production of hydrocarbons that are present in variousfractions of gasoline, kerosene and diesel. In this study, the methyl ester was converted by catalytic cracking using catalyst Cr / Mo / HZA and Ni / Mo / HZA. Preparation of catalyst Cr / Mo / HZA was performed by soaking the natural zeolite powder (ZA) with HCl. The catalyst of HZA was refluxed by (NH4)Mo7O24.4H2O, then dried to obtain the catalyst of Mo/HZA. Futhermore,catalyst of Mo / HZA was refluxed by Cr (NO3) 3.9H2O. The catalyst pruduct of Cr / Mo /HZA was calcined at 500ºC. Catalysts Ni/Mo/ HZA was obtained through the same procedure by replacing Cr (NO3)3.9H2O with NiCl2.6H2O. Cracking was done by refluxing a methyl ester of oil residu slude waste (POME) with 1.5 g catalyst Cr / Mo / HZA and catalyst Ni / Mo / HZA at 350-380ºC . Results of the reflux were analyzed by GC-MS. The products of cracking of catalysts Cr / Mo / HZA were hydrocarbons that wasfractions of keroseneof 31.35%, and diesel fraction of 10.16%. While the product catalyst of Ni / Mo / HZA were 0.33% gas fractions,10.63% fractions gasoline and 11.02%fractions kerosene. The density was similar to densities ofgasoline and kerosene, the viscosity was similar to kerosene, acid number was about two times of acid numbers of gasoline and kerosene while water content was still higher than that of gasoline and kerosene.
Keywords: Methyl ester, catalytic cracking, palm oil, gasoline, kerosene

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