Zeolite Y catalyst containing silicon useful for hydrocracking
AssigneeInstitut Francais du Petrole
InventorsSlavik Kasztelan, Nathalie George-Marchal, Eric Benazzi
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Abstract
Useful for example, for the hydrocracking of hydrocarbons is a catalyst comprising a matrix, 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 SiO2/Al2O3 mole ratio is more than 8, the quantity of alkaline-earth metal cations or alkali metal cations and/or rare earth metal cations is such that the atomic ratio (n×Mn+)/Al is less than 0.8, the specific surface area, determined using the BET method, is more than 400 m2/g, and the water adsorption capacity is more than 6% by weight for P/P0 =0.2 at 25° C., said catalyst also comprising silicon deposited on the catalyst.
Claims24
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 SiO2/Al2O3 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×Mn+)/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 m2/g, and a water adsorption capacity of more than 6% by weight for P/P0 =0.2 at 25 ° C., said catalyst also comprising silicon deposited principally on the matrix.
Dependencies are inferred from the claim text.