SINTESIS KATALIS NiMCM-41 DAN Ni/NiMCM-41 SERTA UJI APLIKASINYA UNTUK PERENGKAHAN MINYAK KELAPA; SYNTHESES OF NiMCM-41 AND Ni/NiMCM-41 CATALYSTS AND THEIR APPLICATION TESTING FOR CRACKING OF COCONUT OIL

IMACULADA CONCEIÇÃO HENRIQUES BAPTISTA, Iip Izul Falah

2015 | Skripsi | FMIPA

The syntheses of material of NiMCM-41 and Ni/NiMCM-41, and their application testing for conversion of coconut oil into biofuel have been performed. The synthesis of material NiMCM-41 used cetyltrimethylammonium bromide (CTAB) and tetramethyl-ammonium hydroxide (TMAOH) as a template, sodium silicate and sodium alumina as the sources of silica and aluminium, respectively. The mixture was processed by hydrothermal methode at 100 oC for 12 hours, washed until neutral, and it was then dried. The template was eliminated from the material by calcination at 540 oC. NiMCM-41 was then modified as Ni/NiMCM-41 by impregnation method. The products were then characterized by Forier Transform Infrared (FTIR), X-ray Difraction (XRD), Atomic Absorption Spectrophotometer (AAS), Transmision Electron Microscope (TEM) and nitrogen gas adsorpition by methode of Brunauer-Emmet-Tailor (BET), while product of cracking was characterized by using Gas Liquid Chromatography – Mass Spectrometer (GC-MS). The TEM and XRD analyses results showed that in NiMCM-41, Ni was incorporated in the porous heksagonal framework. The diameter, pore size, surface area and acidity of NiMCM-41 were higher than that of Ni/NiMCM-41. Yield of the cracking of coconut oil using NiMCM-41 catalyst showed that total conversion was 63,833%, and selectivy to biogasoline was 43,816%, while using Ni/NiMCM-41, total conversion and selectivity were 60,862% and 30,405%, respectively.

Kata Kunci : NiMCM-41; Ni/NiMCM-41; cracking; biofuel; coconut oil