Process for the production of hydrocarbons with a high octane number by the selective dimerization of isobutene
US6433238B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 4, 2000 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Aug 4, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process is described for the production of hydrocarbons with a high octane number starting from hydrocarbon cuts containing isobutene by selective dimerization with acid catalysts, characterized in that the dimerization reaction is carried out in the presence of tertiary alcohols, alkyl ethers and primary alcohols in such a quantity as to have, in the feeding, a molar ratio tertiary alcohols+alkyl ethers+primary alcohols/isobutene higher than 0.1, a molar ratio tertiary alcohols/isobutene lower than 0.2 and a molar ratio primary alcohols/isobutene lower than 0.2, preferably operating at a reaction temperature ranging from 30 to 120° C., at a pressure lower than 5 MPa and feeding space velocities of less than 30 h−1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.