Process for the conversion of olefinic C.sub.4 cuts from steam cracking to high octane gasoline and butane
US4197185A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1978 |
| Grant date | Apr 8, 1980 |
| Priority date | — |
| Expiry date | Aug 25, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Process for producing butane and gasoline of high isooctane content, from a C.sub.4 olefin cut issued from a steam cracking unit, comprising the steps of: PA1 polymerizing at least 90% of the isobutene of the cut mainly to dimers and trimers thereof, PA1 hydrogenating the resulting polymerization mixture to normal butane, isooctane and isododecane, PA1 supplying the effluent from the hydrogenation unit to a separation zone to recover a gaseous fraction and a liquid mixture, and PA1 fractionating the liquid mixture to separate gasoline of high isooctane content, a C.sub.3.sup.- fraction and a butane fraction which is recycled to the steam cracking unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.