Chemistry of hydrocarbon compounds – Saturated compound synthesis – By condensation of a paraffin molecule with an olefin-acting...
Reexamination Certificate
2006-03-24
2009-02-24
Dang, Thuan Dinh (Department: 1797)
Chemistry of hydrocarbon compounds
Saturated compound synthesis
By condensation of a paraffin molecule with an olefin-acting...
C585S725000, C585S727000, C585S728000
Reexamination Certificate
active
07495144
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 alkylation process comprises contacting a hydrocarbon mixture comprising at least one olefin having from 2 to 6 carbon atoms and at least one isoparaffin having from 3 to 6 carbon atoms under alkylation conditions, said catalyst comprising a mixture of at least one acidic ionic liquid and at least one alkyl halide. In one embodiment, the acidic ionic liquid is chloroaluminate ionic liquid prepared by mixing aluminum trichloride (AlCl3) and a hydrocarbyl substituted pyridinium halide, a hydrocarbyl substituted imidazolium halide, trialkylammonium hydrohalide or tetraalkylammonium halide of the general formulas A, B, C and D, respectively,where R=H, methyl, ethyl, propyl, butyl, pentyl or hexyl group and X is a halide and preferably a chloride, and R1and R2=H, methyl, ethyl, propyl, butyl, pentyl or hexyl group and where R1and R2may or may not be the same, and R3, R4, and R5and R6=methyl, ethyl, propyl, butyl, pentyl or hexyl group and where R3, R4, R5and R6may or may not be the same.
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Abernathy Susan M.
Chevron U.S.A. Inc.
Dang Thuan Dinh
Roth Steven H.
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