Hydrocracking catalyst comprising a zeolite Y specific for the production of naphtha
AssigneeIfp Energies Nouvelles
InventorsMathias Dodin, Antoine Daudin, Mickael Rivallan
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Abstract
The invention describes a hydrocracking catalyst which is selective towards the naphtha cut and the hydrocracking process using said catalyst, said catalyst comprising at least one hydrogenating-dehydrogenating element chosen from the group formed by the elements of group VIB and the non-noble elements of group VIII of the Periodic Table, taken alone or as a mixture, and a support comprising at least one porous mineral matrix, a zeolite Y having an initial lattice parameter a0 of the unit cell of greater than 24.42 Å, and a zeolite beta, in which the weight ratio of said zeolite Y to said zeolite beta in the catalyst is strictly greater than 12.
Claims20
A hydrocracking catalyst comprising at least one hydrogenating-dehydrogenating element selected from the group consisting of elements of group VIB, non-noble elements of group VIII of the Periodic Table and mixtures thereof,
- and a support consisting of
- 15 to 80 wt % relative to the total weight of said support of a Y zeolite having an initial crystal lattice parameter a0 of a unit cell of strictly less than 24.40 Å, a BET specific surface area of between 700 and 1000 m2/g, a microporous volume determined by nitrogen adsorption of greater than 0.28 ml/g and a Bronsted acidity of greater than 300 micromols/g,
- 2 to 40 wt % relative to the total weight of said support of a Beta zeolite having an overall silica/alumina atomic ratio of between 20 and 50, and
- 5 to 83 wt % relative to the total weight of said support of at least one porous mineral matrix,
- said catalyst having a weight ratio of zeolite Y to zeolite beta in the catalyst of between 1-40.
Dependencies are inferred from the claim text.