RU2023118213A - Closed gas-tight system and method for producing commercial pieces of petroleum coke from hardened petroleum coke in a coke drum plant - Google Patents

Claims (70)

1. A closed, gas-tight system for producing commercial pieces of petroleum coke from solidified petroleum coke in a coke drum unit, adapted for connection to a coke drum unit (X) containing solidified petroleum coke, and comprising: a coke crusher (C) that crushes petroleum coke to obtain commercial pieces of petroleum coke and is adapted for connection to a coke drum unit (X), in particular, by means of a flexible adapter (A); a pipeline, in particular a closed lock channel (D), through which oil coke sludge is directed to a closed sludge pond; closed sludge pond (E); a dewatering bunker unit (G) adapted to receive petroleum coke sludge coming from a sludge basin (E) and to accumulate marketable pieces of petroleum coke, and also performing a filtering function for removing filtered drainage water and petroleum coke fines from the bottom section of the dewatering bunker unit; a closed tank (I) for drainage water, remote from the sludge basin (E) and adapted to receive filtered water and petroleum coke fines coming from the dewatering bunker plant (G); a single water tank (L) adapted to receive filtered water discharged from a drainage water tank (I); a discharge pipeline (2) for heated quenching water, designed to direct heated quenching water coming from the coke drum plant (X) to a closed sludge pond (E); and a pipeline (3) for cooling water, passing from the water tank (L), in particular from the middle section of said tank, to the branch pipeline (2) for the heated extinguishing water and connecting with the branch pipeline (2) for the heated extinguishing water, in particular at the point (JP) of connection of the pipelines, located above the closed sludge basin (E), for feeding cooling water from the water tank (L) to the branch pipeline (2) for the heated extinguishing water for the purpose of cooling the heated extinguishing water, so as to prevent the formation of steam in the sludge basin (E). 2. The system according to item 1, in which the sludge pond (E) is an environmentally safe closed sludge pond (E) that eliminates emissions into the environment; and/or The tank (I) for drainage water is an environmentally safe closed tank (I) for drainage water, which eliminates emissions into the environment. 3. The system according to item 1 or 2, in which a mixer (B), in particular a static mixer, is provided in the pipeline (3) for cooling water, in particular at the point (JP) of connection of the pipeline (3) for cooling water with the branch pipeline (2) for heated quenching water or at the rear of the point (JP) of connection of the pipelines, but at the front of the inlet opening of the closed sludge basin (E). 4. A system according to any of the preceding claims, in which in the pipeline (3) for cooling water, a heat exchanger (N) is provided, designed with the possibility of reducing the temperature of the cooling water passing through the pipeline (3) for cooling water opposite to the flow of the secondary heat exchange medium, in particular, the flow of ambient air. 5. A system according to any of the preceding paragraphs, in which The pump (M) for the transport water is provided in the pipeline (3) for the cooling water, in particular at the front along the heat exchanger (N). 6. A system according to any of the preceding paragraphs, further comprising a pipeline (1) for supplying quenching water, continuing from the single water tank (L) to the coke drum unit (X) for filling the coke drum unit (X) with water for the purpose of hardening and cooling the hardened petroleum coke; moreover, a pump S is installed in the pipeline (1) for supplying extinguishing water. 7. A system according to any of the preceding paragraphs, additionally containing a control unit, in this case, when the system is operating, the temperature of the hardened petroleum coke reaches 550°C, and the temperature of the water in the only water tank (L) and entering the pipeline (3) for cooling water can be from 60 to 80°C; wherein the control unit is configured to supply quenching water to the coke drum unit (X) via a quenching water pipeline in which the water is at a height of up to 60 m, wherein the water in the coke drum unit (X) is heated to a temperature of up to 165°C, the pressure of said quenching water increases to 6 bar, and there is no steam formation; wherein the control unit is further configured to regulate the pump (M) for the transport water and the heat exchanger (N) in such a way that after mixing the flow of cooling water with the flow of heated quenching water in the outlet pipe (2) for the heated quenching water, the temperature of the water is reduced to approximately 85-95°C before entering the sludge pond (E); wherein the control unit is, in particular, additionally configured to regulate the heat exchanger (N) in the pipeline (3) for cooling water in such a way that the temperature of the cooling water passing through the pipeline (3) for cooling water opposite to the flow of the secondary heat exchange medium, in particular the flow of ambient air, is reduced to approximately 50-70°C. 8. A system according to any of the preceding paragraphs, in which a drain pipe (7) is provided for drainage water, connecting a closed container (I) for drainage water with a water reservoir (L); wherein the drainage water outlet pipe (7) is provided with a drainage water pump (P) and a centrifugal separator, in particular a hydrocyclone (Q), for separating sludge particles from the drainage water coming from the drainage water tank (I); and/or a settling tank (O) for contaminated water is provided, remote from the tank (I) for drainage water, and also remote from the sludge basin (E) and intended to receive sludge particles separated by the centrifugal separator (Q); and/or a waste water/slurry pipeline (11) is provided, continuing from the waste water settling tank (O) to the dewatering bin plant (G); and/or a pump (P) for contaminated water is provided, installed on or in a sump (O) for contaminated water, or in a pipeline (11) for supplying contaminated water. 9. The system according to item 8, in which a single water tank (L) comprises a settling compartment adapted to separate solid particles in the bottom section, in particular at the lowest point of said tank; and/or a discharge pipeline (10) for solid particles is provided, connecting the only water tank (L), in particular the bottom section of said tank, with a settling tank (O) for contaminated water; wherein The water tank (L) is the only water tank (L), eliminating the need for a second separation tank. 10. A system according to any of the preceding paragraphs, additionally containing at least one of the following components: a slurry pipeline (5) connecting the slurry pond (E) to the dewatering bunker plant (G), in particular to the upper section of said plant, for pumping oil coke slurry to the dewatering bunker plant (G); and/or a slurry pump (F) provided in the slurry pipeline (5); and a flushing pipeline (4) branching off from the pipeline (3) for cooling water and passing to the lock channel (D) to increase the efficiency of flushing and pumping the oil coke sludge into the sludge basin (E); moreover, a valve (V3) is provided in the specified flushing pipeline (4). 11. A system according to any of the preceding paragraphs, containing one or more of the following components: a first gas venting pipeline (15a) extending from the upper section of the closed sludge pond (E) to the clean water tank (L), in particular to the upper section of said tank, for venting excess gas from the sludge pond (E) and for feeding it to the clean water tank (L); and/or a second gas bleed pipe (15b) extending from the dewatering bin plant (G), in particular from the upper section of said plant, to the clean water tank (L), in particular to the upper section of said tank, for bleed off excess gas from the dewatering bin plant (G) and for feeding into the clean water tank (L); and/or a third gas outlet pipe (15c) extending from the closed container (I) for drainage water, in particular from the upper section of said container, to the tank (L) for clean water, in particular to the upper section of said tank, for removing excess gas from the closed container (I) for drainage water and for feeding it to the tank (L) for clean water; and a fourth gas bleed pipe (15d) extending from the water reservoir (L), in particular from the upper section of said reservoir, to a device for treating the bleed gas, for example to a device for burning the bleed gas. 12. A method for producing commercial pieces of petroleum coke from hardened petroleum coke in a coke drum plant (X), in particular using a system according to any of the preceding claims, comprising the following steps: quenching of coke for the purpose of hardening and cooling the solidified petroleum coke by "flooding" the coke drum unit (X) with quenching water supplied through a pipeline (1) for supplying quenching water from a single water tank (L) to the coke drum unit (X); discharging for cooling the heated quenching water into a sludge pond (E) through a pipeline (2) for heated quenching water; wherein the flow of cooling water from the water tank (L), in particular from the bottom section of said tank, is fed through the pipeline (3) for cooling water into the branch pipeline (2) for heated quenching water, in particular at the point (JP) of connection of the pipeline (3) for cooling water with the branch pipeline (2) for heated quenching water, located above the sludge basin (E), for the purpose of cooling the heated quenching water in the branch pipeline (2) for heated quenching water and, accordingly, for preventing steam formation in the sludge basin (E). 13. The method according to claim 12, in which during operation of the system, the water in the single water tank (L) and entering the cooling water pipeline (3) has a temperature of about 70°C; at the beginning of the process of extinguishing and cooling the quenching water, the hardened petroleum coke has a temperature of up to 550°C, and at the "flooding" stage, quenching water is supplied to the coke drum unit (X) via the quenching water pipeline (1), whereby the water is located in the coke drum unit (X) at a height of up to 60 m, the pressure of the said quenching water increases to 6 bar and the water is heated to a temperature of up to 165°C, while there is no steam formation; wherein, at the drainage stage, the pump (M) for the transport water and, in particular, the heat exchanger (N) operate in such a way that, after mixing the flow of cooling water with the flow of heated quenching water in the discharge pipeline (2) for heated quenching water, the temperature of the water is reduced to approximately 85-95°C before entering the sludge pond (E); and/or at the drainage stage, the heat exchanger (N) in the cooling water pipeline (3) operates in such a way that the temperature of the cooling water passing through the cooling water pipeline (3) opposite to the flow of the secondary heat exchange medium, in particular the flow of ambient air, is reduced to approximately 50-70°C. 14. A method for producing commercial pieces of petroleum coke from hardened petroleum coke in a coke drum plant (X), in particular using a system according to any of the preceding claims, carrying out a water purification process comprising the following steps: feeding, by means of a pump (P), drainage water from a closed container (I) for drainage water to a water reservoir (L) via a drainage water outlet pipe (7) connecting the closed container (I) for drainage water to a single water reservoir (L), in particular to the upper section of said reservoir; separating, using a centrifugal separator, in particular a hydrocyclone (Q), sludge from drainage water supplied through a drainage water outlet pipe (7) from a drainage water tank (I); the entry of sludge particles separated by the centrifugal separator (Q) into a sedimentation tank (O) for contaminated water, remote from the tank (I) for drainage water, and also remote from the sludge basin (E); and/or moving the contaminated water from the contaminated water settling tank (O) to the dewatering bin (G) via the contaminated water supply pipeline (11) by means of a contaminated water pump (P) installed on or in the contaminated water settling tank (O) or in the contaminated water supply pipeline (11); and/or separation of solid particles in the bottom section, in particular at the lowest point of a single water reservoir (L); and/or removing solid particles from the bottom section, in particular from the lower point of the single water reservoir (L), via a discharge pipe (10) for solid particles into a settling tank (O) for contaminated water, wherein the discharge pipe (10) for solid particles connects the single water reservoir (L), in particular the bottom section of said reservoir, with the settling tank (O) for contaminated water. 15. A method for producing commercial pieces of petroleum coke from hardened petroleum coke in a coke drum plant (X), in particular using a system according to any of the preceding claims, carrying out a water purification process comprising at least one of the first three and the fourth of the following stages: removing excess gas from the sludge pond (E) and feeding it to the clean water tank (L) by means of a first gas venting pipeline (15a) extending from the upper section of the closed sludge pond (E) to the clean water tank (L), in particular to the upper section of said tank; and/or removing excess gas from the dewatering bin plant (G) and feeding it to the clean water tank (L) by means of a second gas venting pipeline (15b) extending from the dewatering bin plant (G), in particular from the upper section of said plant, to the clean water tank (L), in particular to the upper section of said tank; and/or removing excess gas from the closed container (I) for drainage water and feeding it to the tank (L) for clean water by means of a third gas venting pipeline (15c) extending from the closed container (I) for drainage water, in particular from the upper section of said container, to the tank (L) for clean water, in particular to the upper section of said tank; and removing excess gas from the clean water tank (L) and feeding it to a device for treating the diverted gas, such as a device for burning the diverted gas, by means of a fourth gas vent pipe (15d) extending from the clean water tank (L), in particular from the upper section of said tank, to a device for treating the diverted gas, such as a device for burning the diverted gas.