Catalyst for the hydrodealkylation of alkylaromatic compounds
US4451687A · kind A · utility
15Cited by
9References
10Claims
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Key dates
| Filing date | Oct 7, 1983 |
| Grant date | May 29, 1984 |
| Priority date | — |
| Expiry date | Oct 7, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An alkylaromatic hydrocarbon feed stream is hydrodealkylate in the presence of a catalyst having a reduced rate of deactivation, or a lower coking tendency. The catalyst comprises a gamma-alumina support containing 8 to 12 wt. % Cr.sub.2 O.sub.3 and 0.2 to 0.7 wt. % Na.sub.2 O and having a surface area from 175 to 275 m.sup.2 /g and a pore volume from 0.5 to 1.2 cc/g. The catalyst is also useful in the hydrodesulfurization of thiophene containing hydrocarbon streams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.