Regeneration of an acidic catalyst by silane addition

摘要

A method of regenerating an acidic catalyst is described. A silane 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 silane compound, and the silane compound can be recycled.

主权项

1. A method for regenerating deactivated acidic catalyst containing conjunct polymer comprising:
contacting the deactivated acidic catalyst containing the conjunct polymer with at least one silane 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 at least one silane compound resulting in a catalyst phase and an organic phase containing the conjunct polymer and at least one silyl compound.