Hydrogenation Characteristics of Aromatics in Residue Oil of Naphtha Cracking on Pt/Pd Impregnated Mesoporous Molecular Sieve

s − Al containing mesoporous molecular sieve (Al-MMS) was synthesized by hydrolysis of H 2 SiF 6 and Al(NO 3 ) 3 ·9H 2 O. The material obtained was characterized by XRD, N 2 -physisorption. The specific surface area was 981 m/g, and the average pore size was uniformity 39 A. It was confirmed that the acidity of Al-MMS was milder than that of zeolite Y based on the results of NH 3 -TPD. Active materials, Pt and Pd, were loaded on Al-MMS in order to examine the feasibility of using Al-MMS as a catalyst support in the hydrogenation of aromatic compounds included in the residue oil of a naphtha cracker. The hydrogenation activity of PtPd/Al-MMS has been studied by following the kinetics of the hydrogenation of naphthalene, and by comparing the kinetic parameters obtained with Pt and Pd catalysts supported on the other mesoporous material support and commercial conventional support materials. PtPd/Al-MMS catalyst shows the highest activity of hydrogenation and sulfur resistance. The high activity of PtPd/Al-MMS was confirmed again in the hydrogenation of PGO (pyrolized gas oil), which is residue oil obtained from a naphtha cracker. Therefore, PtPd/Al-MMS can be applied to the hydrogenation of aromatic compounds included in the residue oil of a commercial naphtha cracker commericially.