Nitrile removal in an etherification process
US5847230A · kind A · utility
3Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1997 |
| Grant date | Dec 8, 1998 |
| Priority date | — |
| Expiry date | May 20, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C41/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
In an etherification process that uses an FCC effluent as a source of isoolefins, the buildup of nitrites in an alcohol-containing stream that is recycled to the etherification zone is prevented by dragging at least a portion of a water-containing stream produced by a water washing of the FCC effluent and returning the water-containing stream to the FCC gas concentration zone. As a result, the etherification catalyst deactivation rate is reduced and without increasing the net amount of fresh water employed by the process combination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.