Hydrocracking catalyst having a unique silica-alumina substrate
US6733657B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2002 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Apr 20, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J37/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A hydrocarbon conversion catalyst contains at least one silica-alumina having the following characteristics: A content by weight of silica SiO2 of between 10 and 60% by weight; an Na content less than 300 ppm by weight; a total pore volume of between 0.5 and 1.2 m/g measured by mercury porosimetry; a porosity of said silica-alumina wherein: the volume of mesopores whose diameter is between 40 å and 150 å, and whose mean diameter varies between 80 and 120 å represents between 30 and 80% of the total pore volume, and (ii) the volume of macropores, whose diameter is greater than 500 å and preferably between 1000 å and 10,000 å represents between 20 and 80% of the total pore volume; a specific surface area greater than 200 m2/g, and at least one hydro-dehydrogenating element selected metals of group VIB and group VIII, and optionally phosphorus, boron, silicon, or elements of group VIIA, VIIB or VB.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.