Decreasing bi-reactive contaminants
US6368496B1 · kind B1 · utility
17Cited by
19References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1998 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Feb 3, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G53/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Bromine reactive hydrocarbon contaminants are removed from aromatic streams by first providing an aromatic feedstream having a negligible diene level. The feedstream is contacted with an acid active catalyst composition under conditions sufficient to remove mono-olefins. An aromatic stream may be pretreated to remove dienes by contacting the stream with clay, hydrogenation or hydrotreating catalyst under conditions sufficient to substantially remove dienes but not mono-olefins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.