PLANT FOR THE PRODUCTION OF GAS OIL AND BITUMEN FROM WAX FUEL OIL AND HAVING OIL Russian patent published in 2023 - IPC C10G7/06 C10G32/02 C10C3/04 

FIELD: gas oil production.

SUBSTANCE: invention relates to a plant for the production of gas oil and bitumen from waxy fuel oil and heavy oil. The plant includes a fractionation unit equipped with lines for supplying heavy fraction and total thermal conversion vapors, lines for gas, naphtha, light gas oil and bottoms output, as well as a line for outputting heavy gas oil with adjoining lines for supplying circulating thermal reforming residue and naphtha output, on which cracking is located - a furnace with a line for the output of cracking products. In addition, the first evaporator, equipped with a line for supplying the first thermal reforming vapor and a line for supplying the first thermal reforming residue to the second evaporator, which is equipped with a supply line for the second thermal reforming vapor, and the line for supplying the balance residue of thermal reforming is connected to a line for discharging the bottom residue, which is connected to a mixer, a third evaporator, which is equipped with a line for supplying the third thermal reforming vapor and a line for supplying the second thermal reforming residue to the thermal reforming vacuum separator, equipped with a thermal reforming vacuum residue output line and a thermal reforming vacuum vapor supply line, while the first, second and third the thermal reforming vapors are connected to the total thermal reforming vapor supply line. The plant is characterized in that the plant is additionally equipped with a heavy oil vacuum residue production unit, equipped with a heavy oil supply line, on which the first refrigerator-condenser, an electric desalination plant, the second and third refrigerator-condensers, the first heating furnace and a separator equipped with an output line are located in series. separation residue and a wide hydrocarbon fraction vapor outlet line, which branches into two lines, with the first refrigerator-condenser located on the first line. On the second line there is a second refrigerator-condenser, after which the lines are combined into one line, connected to the fractionation unit, on the line for the output of the separation residue there is a second heating furnace and the first vacuum separator, equipped with a line for the output of the first vacuum residue and a line for the output of the first vacuum vapors, on which the third refrigerator-condenser is located, the junction of the supply line of vacuum vapors of thermal conversion and the second vacuum separator, connected by the supply line of heavy gas oil fraction with the line of output of heavy gas oil in front of the cracking furnace and connected to the line of gas output by the supply line of the second separation vacuum vapors, equipped with a vacuum-creating device equipped with lines for supplying the working fluid from the line for the output of a wide hydrocarbon fraction and the output of the spent working fluid to the line for the output of a wide hydrocarbon fraction, in addition, a pipe separator equipped with a line output of the cracked residue to the first evaporator and a cracking vapor output line equipped with a mixer to the third evaporator, connected to the vacuum separator by a supply line for the third thermal conversion residue, while the second evaporator is equipped with a second thermal reformation residue output line, which is divided into a circulating the thermal conversion residue and the thermal conversion balance residue, and the first recuperative heat exchanger is installed on the thermal conversion vacuum vapor output line from the thermal conversion vacuum separator, in addition, the first vacuum residue output line is connected to the thermal conversion vacuum residue output line to form a line of bitumen raw materials, on which houses the second recuperative heat exchanger and the oxidation unit with an air supply line, an exhaust gas outlet line and a bitumen outlet line, on which the third recuperative heat exchanger is installed.

EFFECT: obtaining high-quality bitumen during the processing of paraffinic fuel oil and heavy oil by reducing the content of paraffins in the bituminous raw material, achieved by increasing the degree of conversion of heavy paraffins in the third evaporator by eliminating the supply of heavy oil asphaltenes and increasing the temperature.

1 cl, 1 dwg