Reactivation of hydrofinishing catalyst for color removal activity
AssigneeMobil Oil Corporation
InventorsCostandi A. Audeh, Robert F. Bridger
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Abstract
A method is provided for reactivation of color removal activity of hydrofinishing catalyst which comprises contacting aged hydrofinishing catalyst exhibiting degraded color removal activity with a small amount of added elemental sulfur dissolved in hydrocarbon oil under mild contact conditions for a time sufficient to reactivate the color removal activity of the catalyst.
Claims10
A method for reactivating color removal activity of aged hydrofinishing catalyst which comprises contacting said catalyst with from about 0.05 to about 2 weight percent of added elemental sulfur dissolved in hydrocarbon oil for from about 2 to about 48 hours while maintaining method conditions at a temperature of from about 80.degree. C to about 200.degree. C, a pressure of from about 100 psig to about 300 psig, a liquid hourly space velocity of from about 0.1 hr.sup.-1 to about 10 hr.sup.-1 and a hydrogen circulation rate of from about 100 scf/bbl to about 1500 scf/bbl.
Dependencies are inferred from the claim text.