Patent ID: 7244352

Claim:
A method for producing a naphtha having a decreased amount of sulfur comprising the steps of: a) selectively hydroprocessing a petroleum feedstream comprising cracked naphtha and sulfur-containing species said hydroprocessing performed at selective hydroprocessing conditions effective to convert greater than 95% of the organic sulfur species in said petroleum feedstream to produce a first naphtha product, said first naphtha product containing mercaptan reversion sulfur species having more than 5 carbon atoms, olefins, and non-mercaptan sulfur, wherein said mercaptan reversion sulfur species having more than 5 carbon atoms are produced during said selective hyproprocessing; and b) removing or converting said mercaptan reversion sulfur species with the use of a phase transfer catalyst from said first naphtha product to obtain a second product having a decreased amount of mercaptan reversion sulfur species.