Patent ID: 8906227

Claim:
A method of processing a hydrocarbon feed to remove undesired organosulfur compounds comprising: a. subjecting the hydrocarbon feed to a hydrodesulfurizing process to produce a hydrotreated effluent; b. flashing the hydrotreated effluent to provide a low boiling temperature fraction that contains a reduced level of organosulfur compounds and a high boiling temperature fraction having refractory organosulfur compounds; c. separating the high and low boiling temperature fractions; and d. contacting the high boiling temperature fraction with a gaseous oxidizing agent and an oxidizing catalyst having a formula Cu x Zn 1-x Al 2 O 4 wherein x ranges from 0 to 1 to convert refractoryorganosulfur compounds including dibenzothiophenes, alkyl derivatives of dibenzothiophenes and long-chain alkylated derivatives of benzothiophene having a boiling point in the range of the high boiling temperature fraction, to SO x by breaking the C—S bonds.