Para-selective aromatization process with ex situ selectivated zeolite catalyst
US5574199A · kind A · utility
23Cited by
25References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1995 |
| Grant date | Nov 12, 1996 |
| Priority date | — |
| Expiry date | Jan 13, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2529/70
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for shape selective hydrocarbon aromatization that involves contacting a hydrocarbon feedstream, under aromatization conditions, with a catalytic molecular sieve which has been modified by being ex situ selectivated with a silicon compound. The ex situ selectivation involves exposing the catalytic molecular sieve to at least two selectivation sequences, each sequence comprising contacting the catalytic molecular sieve with a silicon compound followed by calcination. Optionally, the modified catalytic molecular sieve may be further selectivated in situ.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.