High conversion hydrocracking process
US4961839A · kind A · utility
13Cited by
18References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 1988 |
| Grant date | Oct 9, 1990 |
| Priority date | — |
| Expiry date | May 23, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G49/22
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Potential problems associated with the formation of polynuclear aromatic compounds during hydrocracking of residual oils are eliminated by operating at high conversion rates with a high hydrogen concentration followed by a unique separation method. The feed to the final product recovery column is highly vaporized. All of the net bottoms stream of the product recovery column, which is equal to less than 5 vol. percent of the feed, is withdrawn from the process. Only PNA free distillate is recycled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.