Reactivation of partially deactivated catalyst employing ultrasonic energy
AssigneeMobil Oil Corporation
InventorPaul G. Rodewald
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Abstract
A solid catalyst composition which has undergone a partial loss of catalytic activity due to the accumulation of reaction product residue is treated in a chemical conversion process reaction zone in the presence of feedstock(s) with ultrasonic energy of a magnitude and a duration sufficient to restore at least a significant percentage of the lost activity.
Claims35
In a catalyzed isoparaffin-olefin alkylation process employing a solid particulate catalyst composition which undergoes a loss of activity due to accumulation of solid contaminant, the improvement which comprises subjecting the catalyst after it has undergone a partial but less than complete loss of activity due to solid contaminant accumulation with ultrasonic energy within a chemical conversion zone containing a liquid feed stock, the catalyst being present therein, the magnitude of such ultrasonic energy and its duration being sufficient to restore a substantial percentage of the lost activity of the catalyst.
Dependencies are inferred from the claim text.