Abstract:
A process in which the viscosity of an ionic liquid catalyst used in a continuous reaction is measured in order to determine the amount of conjunct polymer associated with the ionic liquid catalyst. The viscosity may be used to control: an amount of spent ionic liquid catalyst passed back to the reaction zone; an amount of spent ionic liquid catalyst passed to a regeneration zone; an amount of spent ionic liquid catalyst removed from the continuous reaction process; an amount of fresh ionic liquid catalyst passed to the reaction zone; an amount of regenerated ionic liquid catalyst passed to the reaction zone; or combinations thereof.
Abstract:
An alkylation process system uses an ionic liquid as a catalyst which undergoes an interruption in normal operating condition. A method of maintaining the alkylation process system during the interruption of the normal operating condition requires maintaining a circulation of the ionic liquid through the alkylation process system without interruption.