Process for the further processing of the vacuum distillation residue in a crude oil refinery
US4925558A · kind A · utility
2Cited by
1References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 16, 1987 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | Jul 16, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D3/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The residue or residue fraction left behind during vacuum distillation in a crude oil refinery is further processed, in that it undergoes thin-film short-path distillation at a higher temperature and under a fine vacuum. Raising the temperature leads to a rise in the feed rate and to an improvement in the distillate/residue ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.