Process for producing gasoline of high octane number and particularly lead free gasoline, from olefininc C.sub.3 -C.sub.4 cuts
US4268700A · kind A · utility
3Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1979 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Sep 28, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Lead free gasoline of high octane number is obtained from C.sub.3 and C.sub.4 olefinic cuts as follows: propylene contained in the C.sub.3 cut is oligomerized, at least 80% of the isobutene and less than 40% of the n-butenes of the C.sub.4 cut are oligomerized to form an oligomerizate distilling in the gasoline range, which is separated from the unreacted C.sub.4 hydrocarbons, the latter are subsequently alkylated to form a gasoline fraction which can be admixed with the oligomerizates of the C.sub.3 and the C.sub.4 cuts to produce the desired high octane gasoline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.