Catalyst comprising a zeolite Y globally non-dealuminated and containing boron and/or silicon
US6420296B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1999 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | May 5, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J29/166
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A catalyst comprising 0.1-99.7% by weight of at least one alumina matrix; 0.1-80% by weight of at least one globally non dealuminated Y zeolite with a lattice parameter of more than 2.438 nm, a global SiO2/Al2O3 mole ratio of less than 8, and a framework SiO2/Al2O3 mole ratio of less than 21 and more than the global SiO2/Al2O3 mole ratio; 0.1-30% by weight of at least one group VIII metal and/or 1-40% by weight of at least one group VIB metal (% oxide); 0.1-20% by weight of at least one promoter element selected from the group formed by boron and silicon (% oxide); 0-20% by weight of at least one group VIIA element; 0-20% by weight of phosphorous (% oxide); 0.1-20% by weight of at least one group VIIB element, useful for hydrocracking processes, especially at low pressures of 7.5 to 11 MPa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.