Precious metal and silica-alumina based catalyst and hydroisomerisation treatment process for heavy feeds
US5879539A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1996 |
| Grant date | Mar 9, 1999 |
| Priority date | — |
| Expiry date | Apr 3, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J21/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns a catalyst for conversion of hydrocarbon feeds. The catalyst is essentially constituted by 0.05% to 10% by weight of a precious metal and a silica (5-70%)/alumina support with a specific surface area of 100-500m.sup.2 /g. The catalyst has an average pore diameter of 1-12 nm, the pore volume of pores with diameters between the average diameter.+-.3 nm being more than 40% of the total pore volume. The dispersion of the precious metal is 20-100% and the distribution coefficient for the precious metal is greater than 0.1. The invention also concerns a process for the hydroisomerization of feeds with boiling points of more than 350.degree. C. using this catalyst. The process is operated between 200.degree. C. and 450.degree. C. at 2-25 MPa with a VVH of 0.1-10 h.sup.-1 and a hydrogen/feed volume ratio of 100-2000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.