Alkylation process using chloroaluminate ionic liquid catalysts
US7432409B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2004 |
| Grant date | Oct 7, 2008 |
| Priority date | — |
| Expiry date | Jun 4, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G50/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for the production of a high quality gasoline blending components from refinery process streams by the alkylation of light isoparaffins with olefins using an ionic liquid catalyst is disclosed. The process includes reacting a refinery stream containing isopentane and/or isobutane with a refinery stream containing ethylene and/or propylene and butylenes under alkylation conditions in the presence of a chloroaluminate ionic liquid catalyst comprising a hydrocarbyl substituted pyridinium chloroaluminate or a hydrocarbyl substituted imidazolium chloroaluminate of the general formulas A and B, respectively.Where R═H, methlyl, ethyl, propyl, butyl, pentyl or hexyl group and X is a chloroaluminate, and R1 and R2=H, methyl, ethyl, propyl, butyl, pentyl or hexyl group and where R1 and R2 may or may not be the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.