Regeneration of hydrotreating catalyst
US4975399A · kind A · utility
24Cited by
9References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1988 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Nov 21, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G45/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A spent hydrotreating catalyst composition is regenerated by a two-step heating process under such conditions as to substantially remove all carbonaceous deposits therefrom and to increase the average pore diameter of the catalyst composition. The thus-prepared regenerated catalyst composition is employed in a process for hydrotreating metal-containing oils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.