Synthesis and characterization of catalysts V-Cr supported on Nb-Al and catalytic evaluation in the isopropanol decomposition

• Grant number: 14/13765-8
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: September 01, 2014
• End date: July 31, 2015
• Field of knowledge: Engineering - Chemical Engineering - Chemical Technology
• Principal Investigator: Gilberto Garcia Cortez
• Grantee: Maria Carolina de Almeida Monteiro
• Host Institution: Escola de Engenharia de Lorena (EEL). Universidade de São Paulo (USP). Lorena , SP, Brazil

Abstract

Catalysts based on metal oxides have been extensively used in recent years for the oxidative dehydrogenation of light alkanes. Among the main catalysts , there are the systems containing V2O5, Nb2O5 e Al2O3. The process of oxidative dehydrogenation of propane provides a potential low-temperature route for the synthesis, but its practice has been limited by a market decrease in propene selectivity with increasing conversion of reactant. The considered project has as major objective create a new synthesis methodology of Nb2O5-Al2O3 supports and CrO3-V2O5-Nb2O5-Al2O3 catalysts to be used in petrochemical processes for the production of light olefins. For in such a way, the following characterization techniques will be used: N2 volumetry, X-ray diffractometry and temperature programmed reduction. The properties acid and/or basic and the catalytic activity of supports and catalysts will be evaluated by the isopropanol decomposition.