Method of enhancing finished catalysts

摘要

A method of enhancing the activity of a catalyst for the hydroprocessing of hydrocarbons, comprising: (a) applying a modifying element dissolved in a solvent onto the surface of a finished catalyst; (b) drying said modified finished catalyst to remove all free solvent from said catalyst; (c) optionally, heating said dried, modified finished finished catalyst at a temperature of about 120 DEG C. to about 1000 DEG C. at a rate of 1 DEG -20 DEG C. per minute, and holding said dried catalyst at a temperature of about 120 DEG C. to about 1000 DEG C. up to 48 hours to provide an enhanced finished catalyst; and (d) recovering said enhanced finished catalyst.