Catalyst modification for shape selective hydrocarbon conversions
US5552357A · kind A · utility
17Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1994 |
| Grant date | Sep 3, 1996 |
| Priority date | — |
| Expiry date | Aug 25, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for shape selective hydrocarbon conversion involves contacting a hydrocarbon feedstream under conversion conditions with a catalytic molecular sieve which has been modified by treatment with an amino silane polymer while molecular sieve acid sites are protected. When the process is toluene disproportionation, a toluene feedstream may also contain a second silicon source which is a high p-xylene selectivating agent. The invention also includes the modification method and the shape selective catalyst which results from the modification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.