Method for making a process oil by using aromatic enrichment and two pass hydrofinishing
US6024864A · kind A · utility
8Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1998 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Dec 17, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G65/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for producing a process oil is provided in which an aromatic extract oil is added to a paraffinic rich feed to provide a blended feed. The blended feed is then hydrotreated in a first hydrotreating stage to convert at least a portion of sulfur and nitrogen in the feed to hydrogen sulfide and ammonia. After stripping, the feed is subjected to a second hydrotreating stage to provide a process oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.