Alkylation with separate butene streams including isobutylene
US3998903A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 12, 1976 |
| Grant date | Dec 21, 1976 |
| Priority date | — |
| Expiry date | Jan 12, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S585/91
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for producing an alkylation reaction product from an isoparaffin and an olefinic reactant containing 1-butene, 2-butene and isobutylene by fractionating the olefinic reactant into a 2-butene fraction and a separate 1-butene and isobutylene fraction. The 2-butene is charged to an HF alkylation reaction zone with isobutane. The mixture is heated by the endothermic reaction, and the fraction comprising 1-butene and isobutylene is then added to the unitary reaction zone. It is possible to alkylate these olefins at conditions which are close to the optimum conditions, using a single reactor vessel, which operates at different temperatures without the necessity for heat exchange means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.