FIELD: refinery industry. SUBSTANCE: tar is treated with propane at the top temperature of 90 C and the bottom temperature of 70 C at a propane to feed stock ratio of 300:100 to obtain deasphaltisate, asphalt and a residue, the deasphaltisate is hydrogenated at 330-380 C and a pressure of 8 to 10 MPa and the residue is once again treated with propane at the top temperature of 70 C and the bottom temperature of 55 C. The propane to feed stock ratio is 250:100. The hydrocracking of deasphaltisate is effected at a pressure of 13 to 17 MPa. The hydrogenisates resulting from hydrogenation and hydrocracking are distilled into three oil fractions. The oil fractions identical in fractionation composition are mixed and subjected to deparaffination and hydrorefining. EFFECT: greater production of oils. 1 tbl
Title | Year | Author | Number |
---|---|---|---|
0 |
|
SU1567602A1 | |
METHOD FOR PRODUCTION OF LUBRICATING OIL | 0 |
|
SU1825815A1 |
METHOD OF PRODUCING BASE OIL | 1995 |
|
RU2115695C1 |
METHOD FOR DEASPHALTING PETROLEUM RESIDUES | 0 |
|
SU1006479A1 |
METHOD FOR DEMETALLIZATION OF HIGH-VISCOSITY OILS | 2022 |
|
RU2803037C2 |
OIL RESIDUE DEASPHALTING PROCESS | 2001 |
|
RU2218379C2 |
0 |
|
SU1778148A1 | |
METHOD OF RESIDUAL OIL DEASPHALTIZATION | 0 |
|
SU1675319A1 |
METHOD OF DEASPHALTING TAR | 2006 |
|
RU2326154C2 |
METHOD OF BITUMEN DEASPHALTING | 0 |
|
SU1147736A1 |
Authors
Dates
1995-11-20—Published
1989-12-11—Filed