Two-stage process for producing diamondoid hydrocarbons
US5498812A · kind A · utility
24Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1994 |
| Grant date | Mar 12, 1996 |
| Priority date | — |
| Expiry date | Aug 4, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G65/043
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a hydrogenation process for producing diamondoid compounds from a petroleum feedstream containing multiple ring naphthenes comprising the steps of: PA1 (a) converting multiple ring naphthenes to alkyl substituted adamantanes in the presence of a zeolite catalyst having a Constraint Index of less than 1 in a first stage to form an intermediate product stream; and PA1 (b) selectively cracking non-diamondoid components of said intermediate product stream in the presence of a zeolite having a CI less than or equal to 2 to evolve a final product stream enriched in alkyl substituted adamantanes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.