Antifoam to achieve high conversion in hydroconversion of heavy oils
US4969988A · kind A · utility
56Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1989 |
| Grant date | Nov 13, 1990 |
| Priority date | — |
| Expiry date | Apr 17, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D19/0409
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the conversion of a heavy hydrocarbon oil in the presence of hydrogen and a catalyst or additive is described. It is shown that conversion can be increased by injecting an anti-foaming agent or a solution of anti-foaming agent in light oil into the reactor. Significantly better results are obtained when the anti-foam or the solution of anti-foam is injected directly into the top section of the reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.