Xylene producing process having staged catalytic conversion of ethylbenzene
US4697039A · kind A · utility
18Cited by
18References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 9, 1987 |
| Grant date | Sep 29, 1987 |
| Priority date | — |
| Expiry date | Feb 9, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C15/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process is disclosed for the production of a desired xylene isomer, preferably paraxylene, and high quality benzene. The desired isomer is recovered from the feed and recycle streams in a xylene separation zone. The net effluent or raffinate from the separation zone is passed into a catalytic xylene isomerization zone. The isomerization zone effluent stream is passed into a high severity transalkylation zone. Ethylbenzene in the feed stream is subjected to staged conversion in the two catalytic reaction zones and thereby converted to both xylenes and benzene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.