“Reforma do n-octano sobre catalisadores bifuncionais Pt-Ni/Mordenita”

B.V. SOUSA; A.S. ARAÚJO; G.S.V. MARTINS; J.M. GRAU; M.G.F. RODRIGUES

Gramado, Brasil

Simposio; XX Simposio Ibero Americano de Catalisis; 2006

Sociedad Brasilera de Catálisis

In this work it was prepared monometallic catalysts with Ni, Pt and bimetallic with Ni-Pt, supported in the HMOR zeolite, keeping constant the content of metallic atoms, using 180x10-6 atg metal/g of catalyst. The catalysts were obtained by competitive ionic exchange, utilizing solutions of [Ni(NH3)6]Cl2 and [Pt(NH3)4]Cl2 complexs. The samples were charaterized by XRD, dehydrogenation of cyclohexane and n-octane reforming at 450oC at atmospheric pressure. In the results of XRD, was not identified any new phase or displacement of their picks after the competitive ionic exchange and calcinations. The dehydrogenation of the ciclo-hexane showed that de catalysts developed a high acidic activity. In the n-octane reforming, it was observed a low conversion for Ni, while the series of mono and bimetallic of Pt leaded high conversions. Although it low quantities of isomerization and aromatic compounds were obtained, the cracking products were obtained in great amounts for all catalysts. The performance for products of cracking was obtained in a great portion for all the catalysts.-6 atg metal/g of catalyst. The catalysts were obtained by competitive ionic exchange, utilizing solutions of [Ni(NH3)6]Cl2 and [Pt(NH3)4]Cl2 complexs. The samples were charaterized by XRD, dehydrogenation of cyclohexane and n-octane reforming at 450oC at atmospheric pressure. In the results of XRD, was not identified any new phase or displacement of their picks after the competitive ionic exchange and calcinations. The dehydrogenation of the ciclo-hexane showed that de catalysts developed a high acidic activity. In the n-octane reforming, it was observed a low conversion for Ni, while the series of mono and bimetallic of Pt leaded high conversions. Although it low quantities of isomerization and aromatic compounds were obtained, the cracking products were obtained in great amounts for all catalysts. The performance for products of cracking was obtained in a great portion for all the catalysts.