Patent ID: 6171474
Filing Date: 2001-01-09
Classification: B01J,C10G

Abstract:
A catalyst comprising a matrix, a hydro-dehydrogenating metal, at least one Y zeolite which is dealuminated and has a lattice parameter in the range 2.424 nm to 2.455 nm, a global SiO.sub.2 /Al.sub.2 O.sub.3 mole ratio of more than 8, an atomic ratio of the sum of alkaline-earth metal cations, alkali metal cations and rare earth metal cations to Al corresponding to the ratio (n.times.M.sup.n+)/Al, wherein n is the charge of cation M, bless than 0.8, a specific surface area, determined using the BET method, of more than 400 m.sup.2 /g, and a water adsorption capacity of more than 6% by weight for P/P.sub.0 = 0.2 at 25 .degree. C., said catalyst also comprising silicon deposited principally on the matrix.