Regeneration of acidic ionic liquid catalysts
AssigneeChevron U.S.A. Inc.
InventorsSaleh Ali Elomari, Thomas Van Harris
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Abstract
We provide a process for regenerating a used acidic ionic liquid catalyst which has been deactivated by conjunct polymers in a reactor, by removing at least 57 wt % of the conjunct polymers originally present in the used acidic ionic liquid catalyst in a separate regeneration reactor, so as to increase the activity of the catalyst. We also provide a regenerated used acidic ionic liquid catalyst having increased activity.
Claims9
A process for regenerating an acidic ionic liquid catalyst which has been used to catalyze a reaction in a reaction zone and which has been deactivated during the reaction by a formation of complexes of conjunct polymers with an anion of the acidic ionic liquid catalyst, comprising removing the acidic ionic liquid catalyst from the reaction zone and breaking up the complexes of the conjunct polymers in the acidic ionic liquid catalyst in a separate regeneration zone to increase a catalytic activity of the acidic ionic liquid catalyst for the reaction;
- wherein the acidic ionic liquid catalyst is a fused salt ionic liquid composed of organic-based cations and inorganic anions.
Dependencies are inferred from the claim text.