Hydrochloric acid stripping process for ionic liquid regeneration process

A method for regenerating deactivated acidic ionic liquid comprising:

• reducing a level of free hydrochloric acid in the deactivated acidic ionic liquid in a removal zone using at least one of heat, a stripping fluid, reduced pressure, and liquid-liquid extraction to form a deactivated acidic ionic liquid having a reduced level of free hydrochloric acid;
• withdrawing a stream comprising removed hydrochloric acid from the removal zone;
• contacting the deactivated acidic ionic liquid having the reduced level of free to hydrochloric acid with at least one silane or borane compound, the conjunct polymer reacting with the at least one silane or borane compound resulting in a catalyst phase comprising ionic liquid and an organic phase containing the conjunct polymer and at least one silyl or boryl compound;
• and
• separating the catalyst phase from the organic phase.