Catalytic composition for the dehydrogenation of alkanes and alkenes, and preparation and use of the same

摘要

New catalytic compositions for the dehydrogenation of alkanes to alkenes and H2, which comprise a non-acidic microporous silicalite support, a Pt metal, a Ge-based compound and a compound based on Sn or In. In the silicalite network, ther is no substitution of Si by Ge. Also claimed is the preparation of the compositions. Preferably the content of Pt metal is 0.01-5% (more preferably 0.01-2%), and the content of Ge is 0.01-5% (more preferably 0.01-2%). The Sn or In content is 0.01-10% (more preferably 0.01-2%).