Hydrogenation of high boiling hydrocarbons
US4411768A · kind A · utility
74Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1982 |
| Grant date | Oct 25, 1983 |
| Priority date | — |
| Expiry date | Apr 21, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B3/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In a hydrogenation operation employing an ebullated catalytic bed, recycle is recovered from the hydrogenated product with at least 25%, by volume, of the recycle boiling above 950.degree. F. The recycle is cooled to a temperature of from 350.degree. to 600.degree. F. to separate coke precursors, prior to recycle to the hydrogenation. Higher conversion levels can be achieved by effecting recycle in such manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.