Method for starting-up a naphtha hydrorefining process
US4149965A · kind A · utility
23Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1978 |
| Grant date | Apr 17, 1979 |
| Priority date | — |
| Expiry date | Jun 27, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/4031
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A naphtha hydrorefining process is initiated by contacting an olefinic naphtha feed at hydrorefining conditions including a pressure below about 200 psig, with hydrogen and a catalyst that has been partially deactivated by treating a fresh or a regenerated catalyst with a substantially non-metals containing hydrocarbonaceous oil in the presence of hydrogen under conditions sufficient to decrease the hydrogenation activity of the catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.