Naphtha upgrading using solid superacid catalysts comprising platinum metal
US5494571A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1994 |
| Grant date | Feb 27, 1996 |
| Priority date | — |
| Expiry date | Jan 21, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J27/053
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A naphtha upgrading process is provided which process utilizes a sulfated solid catalyst comprising (1) oxide or hydroxide of Group III or Group IV element, e.g. zirconium, and (2) a first metal comprising a metal or combination of metals selected from the group consisting of platinum, palladium, nickel, platinum and rhenium, and platinum and tin. The sulfated support is calcined prior to incorporation of the first metal and subsequent to said incorporation. The catalyst may further comprise (3) a second metal selected from the group consisting of Group VIII elements, e.g. iron. One embodiment of the invention further comprises (4) a third metal selected from the group consisting of Group V, VI and VII elements, e.g. manganese. Said second and third metals are added prior to the first calcination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.