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US 2003/0188992 A1Published application
Selective hydroprocessing and mercaptan removal
AssigneeExxonMobil Research and Engineering Company
InventorsThomas R. Halbert, Craig A. McKnight, John P. Greeley, Bruce R. Cook, Garland B. Brignac, Mark A. Greaney, Robert C. Welch
Life of this patent
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Abstract
A process for decreasing the amount of sulfur in a petroleum stream.
Claims13
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 to produce a first naphtha product comprising mercaptan reversion sulfur species having at least 5 carbon atoms, and olefins wherein said hydroprocessing results in the conversion of greater than 95% of the organic sulfur species in said petroleum feedstream;
- and
- b) removing or converting said mercaptan reversion sulfur species from said first product to obtain a second product having a decreased amount of mercaptan reversion sulfur species.
Dependencies are inferred from the claim text.