METHOD FOR TREATMENT OF SYNTHETIC OIL, PROCESS FOR PRODUCTION OF HYDROCARBON OIL, HYDROCARBON OIL FOR HYDROGEN PRODUCTION, HYDROCARBON OIL FOR THE SMOKE POINT IMPROVER FOR KEROSENE, AND HYDROCARBON OIL FOR DIESEL FUEL BASE

摘要

THE METHOD FOR PROCESSING SYNTHETIC OIL OF THE PRESENT INVENTION IS CHARACTERIZED IN THAT IT INCLUDES: A FIRST FRACTIONAL-DISTILLATION STEP OF SUBJECTING A MATERIAL TO BE PROCESSED, WHICH COMPRISES SYNTHETIC OIL OBTAINED BY FISCHER TROPSCH SYNTHESIS, TO FRACTIONAL DISTILLATION TO OBTAIN A MIDDLE DISTILLATE, WHICH CONTAINS A FRACTION HAVING A BOILING POINT OF 150 TO 360oC AT 90% BY MASS OR MORE, AND A WAX DISTILLATE WHICH IS HEAVIER THAN THE MIDDLE DISTILLATE; A HYDROTREATING STEP OF SUBJECTING THE MIDDLE DISTILLATE OBTAINED IN THE FIRST FRACTIONAL-DISTILLATION STEP TO HYDROTREATING BY BRINGING THE SAME INTO CONTACT WITH HYDROTREATING CATALYST IN THE PRESENCE OF HYDROGEN SO THAT A FRACTION HAVING A BOILING POINT OF 150°C OR LOWER OF THE MIDDLE DISTILLATE HAS A CONTENT (% BY MASS) WITH AN INCREASE RATE OF 9% BY MASS OR LESS AFTER THE CONTACT WITH THE CATALYST; A SECOND FRACTIONAL-DISTILLATION STEP OF SUBJECTING THE MIDDLE DISTILLATE HAVING PASSED THROUGH THE HYDROTREATING STEP TO FRACTIONAL DISTILLATION TO OBTAIN A FIRST FRACTION, WHICH CONTAINS A FRACTION HAVING A BOILING POINT OF 150 TO 250°C AT 90% BY MASS OR MORE, AND A SECOND FRACTION, WHICH IS HEAVIER THAN THE FIRST FRACTION; A HYDROCRACKING STEP OF SUBJECTING THE WAX DISTILLATE OBTAINED IN THE FIRST FRACTIONAL-DISTILLATION STEP TO HYDROCRACKING BY BRINGING THE SAME INTO CONTACT WITH HYDROCRACKING CATALYST IN THE PRESENCE OF HYDROGEN; A THIRD FRACTIONAL-DISTILLATION STEP OF SUBJECTING THE WAX DISTILLATE HAVING PASSED THROUGH THE HYDROCRACKING STEP TO FRACTIONAL DISTILLATION TO OBTAIN A THIRD FRACTION, WHICH CONTAINS A FRACTION HAVING A BOILING POINT OF 150 TO 360°C AT 90% BY MASS OR MORE; AND A MIXING STEP OF MIXING THE SECOND FRACTION AND THE THIRD FRACTION.