Hydroprocessing in a countercurrent reaction vessel
US5985131A · kind A · utility
17Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1996 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Aug 23, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G65/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for upgrading a liquid petroleum or chemical stream wherein said stream flows countercurrent to the flow of a treat gas, such as a hydrogen-containing gas, in at least one reaction zone. The reaction vessel used in the practice of the present invention contains vapor and optionally liquid passageway means to bypass one or more catalyst beds. This permits more stable and efficient reaction vessel operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.