Desulfurization and aromatic saturation of feedstreams containing refractory organosulfur heterocycles and aromatics
 A process for the hydrodesulfurization (HDS) of multiple condensed ring heterocyclic organosulfur compounds present in petroleum and petrochemical streams and the saturation of aromatics over noble metal-containing catalysts under relatively mild conditions. The noble metal is selected from Pt, Pd, Ir, Rh and polymetallics thereof. The catalyst system also contains a hydrogen sulfide sorbent material. 
Exxon Research and Engineering Co.
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inventional inventional
Jingguang G. Gary B. Carl W. Michele S. Michel Darryl P. James J. William C. David E. W. Edward S. Sylvain
Chen McVicker Hudson Touvelle Daage Klein Schorfheide Baird, Jr. Vaughan Ellis Hantzer