Method of processing heavy sulfur-bearing petroleum residues into low-sulfur motor and boiler plant fuels

Abstract

Abstract A METHOD OF PROCESSING HEAVY SULFUR-BEARING PETROLEUM RESIDUES INTO LOW-SULFUR MOTOR AND BOILER PLANT FUELS, RESIDING IN THAT SAID PERTOLEUM RESIDUES ARE DEASPHALTIZED BY BEING TREATED WOTH SOLVENTS WHICH ARE PARAFFIN HYDROCARBONS WITH THE NUMBER OF CARBON ATOMS FROM 4 TO 8, OR WITH MIXTURES STHEREOF, AT A TEMPERATURE HIGHER THAN THE SOFTENING POINT OF THE ASPHALTENE CONCENTRATE AND UNDER A PRESSURE EXCEEDING THAT OF THE SOLVENT VAPORS AT SAID TEMPERATURE, UNDER LIQUID-LIQUID EXTRACTION CONDITIONS, THE DEASPHALTIZATE COMPRISING RESINS AND OILS CONSTITUTING AN EXTRACT PHASE AND THE CONCENTRATE COMPRISING ASPHALTENES, METALLIFEROUS COMPOUNDS AND ASH-FORMING COMPONENTS WITH ADMIXTURES OF RESINS AND OILS CONSTITUTING A RAFFINATE PHASE. THE RESULTING DEASPHATIZATE IS SUBJECTED TO CATALYTIC DESTRUCTIVE HYDROGENATION ON A CATALYST, FOR WHICH PURPOSE USE IS MADE OF OXIDES OF METALS BELONGING TO GROUPS VI AND VIII OF THE PERIODIC SYSTEM, OF ALUMINUM OXIDE AS A CARRIER, AT A TEMPERATURE OF 350-450* C., UNDER A PRESSURE OF 100-300 ATM., WITH A SPACE VELOCITY OF 0.2-5HR.-1 AND AT A VOLUME RATIO OF HYDROGEN TO THE DEASPHALTIZATE OF 200-2000:1. THE HIGH-QUALITY LOW-SULFUR MOTOR FUELS OBTAINED BY SAID PROCESSING OF PERTOLEUM RESIDUES CAN BE USED, E.G., FOR DIESEL AND CARBURETOR ENGINES, AND LOW-SULFUR BOILER PLANT FUELS CAN BE USED IN VARIOUS POWER-GENERATING PLANTS, E.G., SUCH AS BOILER PLANTS.

Inventors

• 👤 A Aigenson
• 👤 Y Cir
• 👤 R Kubicka
• 👤 Y Veprek
• 👤 B Ezhov
• 👤 G Vorms
• 👤 N Dobrozrakova
• 👤 G Berg
• 👤 J Sabadash
• 👤 V Akimov
• 👤 V Fryazinov
• 👤 F Malikov

Bibliographic Details