FIELD: chemistry.
SUBSTANCE: present invention relates to the integration of vacuum distillation and solvent deasphalting to increase fuel production. Described is a method of recycling unconverted oil obtained at the output of a hydrocracking unit, comprising: supplying atmospheric residues, which are residues from the distillation unit, to a vacuum distillation unit at 370-520°C; obtaining vacuum residues, which are hydrocarbons, the boiling points of which exceed the range of boiling points of gas oil obtained at the output of the vacuum distillation unit; supplying vacuum residues to the solvent deasphalting unit and obtaining deasphalted hydrocarbon products; supplying deasphalted hydrocarbon products to a hydrocracking unit to obtain unconverted oil and hydrocarbon products; supplying unconverted oil to the vacuum fractionating evaporator and obtaining a vacuum distillate and a bottom fraction of the vacuum distillate; and supplying the lower fraction of the vacuum distillate to the solvent deasphalting unit.
EFFECT: technical result is an increase in the overall yield of valuable motor fuels derived from residues, and an increase in the profitability of the entire production.
5 cl, 2 tbl, 5 dwg
| Title |
Year |
Author |
Number |
| METHOD FOR UPGRADING PARTIALLY CONVERTED VACUUM RESIDUE |
2015 |
- Greene, Marvin, I.
- Baldassari, Mario, C.
- Mukherjee, Ujjal, K.
|
RU2673803C1 |
| COMBINING DEASPALTIZATION STAGES AND HYDRAULIC PROCESSING OF RESIN AND SLOW COKING IN ONE PROCESS |
2013 |
|
RU2634721C2 |
| HYDROCRACKING METHOD COMBINED WITH VACUUM DISTILLATION AND SOLVENT DEASPHALTING TO REDUCE ACCUMULATION OF HEAVY POLYCYCLIC AROMATIC COMPOUNDS |
2015 |
|
RU2695381C2 |
| METHOD OF THE HEAVY HYDROCARBON RAW MATERIAL PROCESSING INCLUDING SELECTIVE DE-ASPHATIZATION WITH THE DE-ASPHALTED OIL RECYCLING |
2013 |
- Mazhshe Zherom
- Merdrinyak Izabell
- Fene Frederik
- Verstrate Yan
- Le Ko Zhan-Fransua
|
RU2662437C2 |
| MULTISTAGE HYDROCRACKING OF STILL RESIDUE |
2017 |
- Mukherjee, Ujjal K.
- Greene, Marvin I
- Baldassari, Mario C.
|
RU2722644C1 |
| UTILISATION OF GAS FROM RESERVOIR FOR PRELIMINARY PROCESSING NATURAL CRUDE OIL INTO PRELIMINARY REFINED RAW MATERIAL NOT CONTAINING PYROBITUMENS FOR PROCESSING P OIL AND LIQUID RESIDUAL RAW MATERIAL FOR PROCESSING OIL P
|
2005 |
- Lengle Ehrik
- Rozhej Aleksandr
|
RU2360948C2 |
| IMPROVED METHOD FOR CONVERSION OF RESIDUES, INCLUDING STAGES OF HYDROCONVERSION IN MOVABLE LAYER AND DEASPHALTING STAGE |
2018 |
- Marques, Joao
- Dreillard, Matthieu
- Feugnet, Frederic
- Verstraete, Jan
- Le Coz, Jean-Francois
|
RU2804466C2 |
| MULTISTAGE HYDROCRACKING OF REFINING RESIDUES |
2010 |
- Baldassari Mario S.
- Mukerdzhi Udzhal K.
- Gupta Avinash
|
RU2495911C2 |
| MULTI-STAGE HYDROCRACKING OF DISTILLATION RESIDUES |
2010 |
- Baldassari Mario S.
- Mukerdzhi Udzhal K.
- Gupta Avinash
|
RU2538961C1 |
| RESIDUE HYDROCRACKING PROCESSING |
2014 |
- Baldassari Mario S.
- Mukerdzhi Udzhal K.
- Grin Marvin I.
- Olsen Ann-Mari
|
RU2663896C2 |
