Process of desulfurizing hydrocarbons with a boron fluoride coordination compound followed by hydrofining with a hydrogen donor

Claim 1

A PROCESS OF TREATING CRUDE OIL, RESIDUA AND LIKE HEAVY HYDROCARBON OIL STOCKS CHARACTERIZED BY A SIGNIFICANT CONTENT OF SULFUR COMPOUNDS TO REDUCE THE QUANTITY OF SAID SULFUR COMPOUNDS IN SAID STOCKS WHICH COMPRISES, INTIMATELY MIXING THE HEAVY HYDROCARBON OIL STOCK AT SUBSTANTIALLY ATMOSPHERIC PRESSURE WITH A COALESCING AGENT COMPRISING A COORDINATION COMPOUND OF BORON FLUORIDE, SAID COALESCING AGENT BEING EMPLOYED IN A QUANTITY OF AT LEAST ABOUT 0.1% BY VOLUME BY SUBSTANTIALLY LESS THAN THE QUANTITY REQUIRED FOR SOLVENT SEPARATION OF SAID SULFUR COMPOUNDS FROM SAID HEAVY HYDROCARBON OIL STOCK, CAUSING THE INTIMATELY MIXED STOCK TO SEPARATE INTO A COALESCED PHASE AND A PURIFIED PHASE, SEPARATING SAID PURIFIED PHASE FROM SAID COALESCED PHASE, MIXING SAID PURIFIED PHASE WITH A HYDRO-AROMATIC COMPOUND AND INTRODUCING THE MIXTURE INTO A HYDROGENATION ZONE MAINTAINED AT A PRESSURE RANGING FROM ATMOSPHERIC PRESSURE TO 700 P.S.I.G. IN THE PRESENCE OF A HYDROGENATION-DEHYDROGENATION CATALYST, MAINTAINING A TEMPERATURE OF 650 TO 1,000*F. IN SAID HYDROGENATION ZONE TO EFFECT HYDROGENATION OF SAID PURIFIED PHASE, WITHDRAWING THE HYDROGENATED PURIFIED PHASE FROM SAID HYDROGENATION ZONE IN ADMIXTURE WITH THE DEHYDROGENATION PRODUCT OF THE HYDRO-AROMATIC COMPOUND, AND SEPARATING SAID DEHYDROGENATION PRODUCT FROM THE HYDROGENATED PURIFIED PHASE.