Hydrotreating catalysts
AssigneeCatalysts & Chemicals Industries Co., Ltd.
InventorsTetsuji Hirano, Goro Sato, Hidehiro Higashi, Teruo Migita, Yoshio Eto
Life of this patent
Estimating the term…
Abstract
A catalyst comprising metal components selected from Group VIA and Group VIII of the Periodic Table on a carrier comprising an alumina-containing inorganic oxide and a faujasite type Y zeolite having a specified particle size distribution, can exhibit a superior desulfurizing activity and produce an middle distillate such as kerosene and light gas oil in a high yield.
Claims10
A hydrotreating catalyst comprising a hydrogenation component supported on a carrier, said hydrogenation component being composed of metals selected from Group VIA and Group VIII of the Periodic Table, said carrier consisting essentially of a blend of an alumina-containing inorganic oxide and a faujasite Y zeolite, said carrier having been prepared by mixing (1) a precursor of said alumina-containing inorganic oxide and (2) particles of said faujasite Y zeolite having a unit lattice constant of 24.25 to 24.50 .ANG. and a particle size distribution consisting of
- up to 20 wt.% of particles having particle diameters of 3 microns or smaller,
- from 50 to 70 wt.% of particles having particle diameters of from 3 to 12 microns,
- and from 10 to 40 wt.% of particles having particle diameters of from 12 to 30 microns,
- and forming the mixtures into particles having desired shape and dimensions, and then drying and calcining the particles, said catalyst having at least 0.1 ml/g of pore volume of pores having a pore diameter of 600 Angstrom units or larger.
Dependencies are inferred from the claim text.