METHOD OF HYDROCONVERSION OF HEAVY PART OF MATRIX OIL Russian patent published in 2017 - IPC C10G47/26 

FIELD: petroleum industry.

SUBSTANCE: invention refers to the method of hydroconversion of the heavy part of the matrix oil with recovery of liquid hydrocarbon mixtures in the presence of distributed molybdenum-based catalyst in raw materials at the excessive temperature and pressure of hydrogen. The method is characterized by the fact that the water solution of the precursor of the molybdenum-based catalyst is administered into the raw material, the heavy part of the matrix oil with the boiling temperature over 350°C; the obtained mixture is being dispersed until formation of the stable inverted emulsion, heated up to the temperature of reaction of 380-460°C, and hydrogenated in a reactor with the rising current at the said temperature and the pressure of 7-10 MPa in the presence of the catalyst formed from the precursor. Then, the distillate fractions with the boiling temperature up to 250°C and the residue with the temperature of above 250°C are delineated from the reaction products. And the said residue in the amount of 20-80% considering the concentration fractions of above 520°C in the initial heavy part of the matrix oil is returned to the stage of raw material treatment as recycle, the rest of the said residue is brought to the atmosphere and vacuum distillation with delineation of the residue with the boiling temperature of above 520°C directed to the stage of metal recovery, the recycle at the temperature of 60-95°C is mixed with the said heavy part of the matrix oil, where the water solution of the said precursor is administered, and the following stages are repeated.

EFFECT: usage of proposed method allows excluding administration of outside modifiers, increasing the depth of conversion of raw materials, and reducing the cox output.

6 cl, 11 ex, 1 tbl