Regeneration of acidic catalysts
AssigneeChevron U.S.A. Inc.
InventorsSaleh Elomari, Thomas V. Harris
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Abstract
A process for regenerating a used acidic catalyst which has been deactivated by conjunct polymers by removing the conjunct polymers so as to increase the activity of the catalyst is disclosed. Methods for removing the conjunct polymers include addition of a basic reagent and alkylation. The methods are applicable to all acidic catalysts and are described with reference to certain ionic liquid catalysts.
Claims20
A process for regenerating a used acidic catalyst which has been deactivated by conjunct polymers in a reactor, comprising removing the conjunct polymers by an alkylation in a separate regeneration reactor so as to increase the activity of the catalyst.
A regenerated used acidic catalyst, which has been regenerated by a process, comprising:
- removing conjunct polymers from a used acidic catalyst, which has been deactivated by conjunct polymers in a reactor, by an addition of a basic reagent or an alkylation, in a separate regeneration reactor, so as to increase an activity of the catalyst.
A process for regenerating a used acidic catalyst which has been deactivated by complexation with conjunct polymers by freeing the conjunct polymers from complexation by an addition of a basic reagent or an alkylation in a regeneration zone so as to increase the activity of the catalyst.
Dependencies are inferred from the claim text.