“Reforma do n-Octano sobre Catalisadores do Tipo Pt /USY”

A.S. ARAUJO; A.C.C. ANDRADE; J.M. GRAU; M.G.F. RODRIGUES

Gramado, Brasil

Simposio; XX Simposio Ibero Americano de Catalisis; 2006

Sociedad Brasilera de Catálisis

The aromatic compounds contribute for the increasing of octane number of the gasoline and, consequently, the antidetonate action. In this manner, the process of reforming objective transforms n-paraffns and ciclo-hexanes, the most important components of the gasoline, in these aromatic compounds, through the arrangement of their molecular structures. In this work, some bifunctional catalysts supported in the Y zeolite were prepared. It was prepared samples with 0.3, 0.5, 1.0and 2.0% contents of platinum, which tested in the reforming of n-octane (450oC, 1 atm, WSHV = 3,4 h-1, H2/nC8 = 7,3). The catalysts were obtained by competitive ionic exchange using aqueous solution of platinum complex [Pt(NH3)4]Cl2. The samples were characterized by XRD, dehydrogenation of the ciclo-hexane and TPR, observing that the reduction of the species of platinum begins in 230oC and have a maximum of consume of hydrogen in 580oC. The reaction of reforming produced predominantly aromatic compounds.