SHALE OIL DESULFURIZATION METHOD AND CATALYTIC OXIDATIVE DESULFURIZATION COMPOSITION FOR SHALE OIL Russian patent published in 2017 - IPC C10G55/04 C10G53/14 B01J31/34 B01J31/36 

FIELD: chemistry.

SUBSTANCE: method involves oil shale mixing in an organic solvent. At least 9 parts of an organic solvent are taken per one part of shale oil, the resulting mixture is oxidized by a catalytic oxidizing composition comprising hydrogen peroxide at a concentration of at least 50%, a salt selected from sodium molybdate, sodium tungstate, vanadyl sulfate, and an acid for oxidation reaction at the following ratio in molar proportions: salt selected from sodium molybdate, sodium tungstate, vanadyl sulfate:sulfur in oil = 1:500 to 1:50, hydrogen peroxide:sulfur in oil = 2:1 to 6:1, acid:sulfur in oil = 1:5 to 5:1. At that, 10 to 500 parts of the obtained mixture are taken per one part of the catalytic oxidizing composition, and the resulting mixture is treated at constant sonication power of 300 W for 2-6 hours, after which the solvent is removed and thermal cracking of the obtained mixture is carried out at 300-350°C for 3 to 6 hours.

EFFECT: objects allow to achieve a higher degree of sulfur removal.

12 cl, 3 ex