Zeolite Y catalyst containing silicon useful for hydrocracking
US6171474A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1999 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | May 5, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/22
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
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 SiO.sub.2 /Al.sub.2 O.sub.3 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.times.M.sup.n+)/Al is less than 0.8, the specific surface area, determined using the BET method, is more than 400 m.sup.2 /g, and the water adsorption capacity is more than 6% by weight for P/P.sub.0 =0.2 at 25.degree. C., said catalyst also comprising silicon deposited on the catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.