The present disclosure is directed to a multi-stage system and a process utilizing said system with the design of reducing the sulfur-content in a liquid comprising hydrocarbons and organosulfur compounds. The process comprising at least one of the following states: (1) an oxidation stage; (2) an extraction state; (3) a raffinate washing stage; (4) a raffinate polishing stage; (5) a solvent recovery stage; (6) a solvent purification stage; and (7) a hydrocarbon recovery stage. The process for removing sulfur-containing hydrocarbons from gas oil, which comprises oxidizing gas oil comprising hydrocarbons and organosulfur compounds to obtain a product gas oil.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH
This invention was made with support from the U.S. Government under Cooperative Agreement No. DE-FC26-01BC15281; W(A)-02-003, CH-1087 awarded by the Department of Energy. The U.S. Government has certain rights in this invention.