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US 9,221,043 B2Granted
Regeneration of an acidic catalyst by borane addition
AssigneeUop LLC
InventorsErin M. Broderick, Alakananda Bhattacharyya, Susie C. Martins, Kaitlin M. DeSalvo, Douglas A. Nafis
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Abstract
A method of regenerating an acidic catalyst is described. A borane compound is contacted with an acidic catalyst that contains conjunct polymer, which releases the conjunct polymer from the acidic catalyst. The acidic catalyst can then be re-activated with acid. The conjunct polymer can be separated from the borane compound, and the borane compound can be recycled.
Claims16
A method for regenerating deactivated acidic catalyst containing conjunct polymer comprising:
- contacting the deactivated acidic catalyst containing the conjunct polymer with at least one borane compound in a regeneration zone under regeneration conditions, the acidic catalyst selected from the group consisting of sulfuric acid, hydrofluoric acid, trifluoromethanesulfonic acid, phosphoric acid, boron trifluoride, and acidic ionic liquids, the conjunct polymer reacting with the borane compound resulting in a catalyst phase and an organic phase containing the conjunct polymer and at least one boryl compound.
Dependencies are inferred from the claim text.