“Esterifikasi Minyak Jelantah Menggunakan Katalis Cangkang Karetâ€
Abstract
Abstract
Rubber shells is an abundant agricultural waste in Indonesia but is not utilized as good as other waste, such as biomass feedstock. This material has a high carbon content. To increase the economic value of rubber shell, it can be used as raw material of catalyst to growing fast the esterification/transesterification reaction of free fatty acids or triglycerides. The catalyst preparation was done by combustion and without combustion then continue with immersion process by using H2SO4 and KOH. Futhermore, this mixture was calcined at 430 oC for 1 hour. The performance of catalyst was tested by esterification proces with cooking oil waste . The optimum performance was obtained by H2SO4 without combustion immersion, whereas the condition optimum was 1 % catalyst (W/V), 1: 1.5(V /V) oil : methanol ratio , 1 hour reaction time. The result showed 88.89% conversion and 93.33% yield.
Keywords: Rubber shells, biomass catalyst, Esterification
