PENGARUH KONSENTRASI PREKURSOR PADA PREPARASI DAN KARAKTERISASI KATALIS MONOMETAL Ni/ZEOLIT Y DAN Mo/ZEOLIT Y

Oleh :
MULYANI - M0302004 -

ABSTRACT Mulyani, 2008. THE EFFECT OF PRECURSOR CONCENTRATIONS ON THE PREPARATION AND CHARACTERIZATION OF Ni/ZEOLITE Y AND Mo/ZEOLITE Y MONOMETALLIC CATALYSTS. Thesis. Department of Chemistry. Mathematic and Science Faculty. Sebelas Maret University Preparation of Ni/Zeolite Y and Mo/Zeolite Y monometallic catalyst to study the effect of precursor concentrations toward the catalyst characters and to compare the characters of Ni/Zeolit Y and Mo/Zeolit Y catalysts had been conducted. The aim of this study is to produce more effisient hidrocracking catalysts. Preparation process was carried out on 2, 6, 10, 14 (% w/w) concentrations of metallic precursor Ni(NO3)2.6H2O and (NH4)6Mo7O24.4H2O. The effect of the precursor concentrations toward the characters of catalysts such as metal content, total acidity, spesific suface area, average pore radius and total pore volume was obtained by the characterization for each precursor concentrations. The characterization of Ni/Zeolite Y and Mo/Zeolite Y catalysts were analysed by XRD to know the crystalinity stabilization and mineral composition of catalysts. The purpose of SSA analysis was used to know Ni and Mo metal content on the zeolite Y. These data were supported by total acidity with the gravimetri method; spesific suface area, average pore radius and total pore volume with BET method. The characters of both catalysts, then, were compared in the same methods and concentrations. The result showed that the increasing of precursor concentrations produced the increasing of metal contents, total acidity, spesific suface area, average pore radius and total pore volume of Ni/Zeolite Y and Mo/Zeolite Y catalysts until the optimum concentration. It was up to 6 (%w/w) in Ni/Zeolit Y and 10 (%w/w) in Mo/Zeolit Y catalyst. Ni/Zeolite Y showed better characters than Mo/Zeolite Y as a catalyst. Key words : nikel-molibdenum, zeolite Y, impregnation, precursor concentration, catalyst characters