Desulfurization and conversion of hydrocarbonaceous black oils with maximum production of distillable hydrocarbons

Abstract

Abstract A PROCESS FOR CONVERTING ASPHALTENE-CONTAINING HYDROCARBONACEOUS BLACK OILS INTO LOWER-BOILING, NORMALLY LIQUID HYDROCARBON PRODUCTS WITHOUT SUBSTANTIAL YIELD LOSS TO ASPHALTIC RESIDUUM. THE PROCESS INVOLVES THE INTEGRATION OF A THERMAL CRACKING COIL AND FIXED-BED CATALYTIC HYDROGENATION AND DESULFURIZATION, AND IS ESPECIALLY APPLICABLE TO SULFUROUS CHARGE STOCKS CONTAINING LESS THAN 150 P.P.M. OF METALLIC CONTAMINANTS, AND MORE THAN ABOUT 10.0% BY VOLUME OF NON-DISTILLABLES. THE CHARGE STOCK IS INITIALLY SUBJECTED TO FIXED-BED CATALYTIC DESULFURIZATION AND HYDROGENATION. A HIGH-BOILING CONCENTRATE IS THEN SUBJECTED TO A NON-CATALYTIC, THERMAL CRACKING REACTION ZONE OR COIL, AND UNCONVERTED ASPHALTICS ARE RECYCLED TO THE FIXED-BED REACTION ZONE FOR HYDROGENATION.

Inventors

• 👤 Frank Stolfa

Bibliographic Details