SINTESIS KATALIS Ni/Al2O3-BENTONIT UNTUK PROSES HIDRORENGKAH MINYAK KELAPA MENJADI BIOGASOLIN; SYNTHESIS OF Ni/Al2O3-BENTONITE CATALYST FOR HYDROCRACKING COCONOUT OIL INTO BIOGASOLINE
KHOTIMAH, ANIKMATUN, Karna Wijaya
2015 | Skripsi | FMIPAHydrocracking coconout oil using Ni/Al2O3-bentonite catalyst has been conducted. Synthesis of the catalyst has began with acid treatment using HF 1% and H2SO4 0,5 M producing H/Bentonite catalyst. Then H/bentonite catalyst was pillared by Al2O3 followed by impregnation of Ni metal which derived from precursor NiCl2·6H2O which produced Ni/Al2O3-bentonite . These two catalysts were analyzed by Infrared Spectroscopy, X-ray Flourescence, X-ray Diffraction, Transmission Electron Microscope, and Brunauer, Emmet, Teller surface area method. The acidity of the catalysts were analized by gravimetric sorption of ammonia base. Hydrocracking coconout oil was conducted by variation of catalyst of H/bentonite and Ni/Al2O3-bentonite to determine its optimum convertion of product. The products were analyzed by GC-MS to determine the content and composition of the compounds. The result showed that basal spacing, specific surface area, pore radius, total pore volume and acidity of bentonite were 13,06 Å, 79,078 m2/g, 30,472 Å, 15 cm3 and 64,62 mmol/g, respectively. Pillarization using Al2O3 increased the basal spacing into 7,46 Å. Catalytic activity and selectivity test showed that liquid product and selectivity of gasoline fraction influenced by acidity of catalyst. Based on the result analysis using GC-MS, conversion of the biogasoline product of hydrocracking using H/bentonite and Ni/Al2O3-bentonite catalyst were 10 mL and 14 mL biogasoline. Experimental showed that existence of impregnation of metal would be increasing the catalytic properties of catalyst. It showed that the catalyst was increasing the biogasoline convertion from hydrocracking product
Kata Kunci : Catalytic hydrocracking; coconout oil; Ni/Al2O3-bentonite, biogasoline
