Closed airtight system and method for obtaining marketable petroleum coke pieces from solidified petroleum coke in coke tower plant

Abstract

A closed gas-tight system for obtaining marketable petroleum coke pieces from solidified petroleum coke in a coke tower plant, where the system is configured to be connected to a coke tower plant comprising solidified petroleum coke, and the system comprises: a coke crushing plant for crushing petroleum coke into marketable petroleum coke pieces, the coke crushing device is configured to be connected with the coke tower device, and particularly connected with the coke tower device through a flexible transition connecting piece; the closed drainage channel is used for guiding the petroleum coke slurry to the closed slurry tank; a closed slurry tank; the dewatering bin device is configured to receive the petroleum coke slurry from the slurry pool, collect marketable petroleum coke blocks and serve as a filter to discharge runoff drainage from the lower area of the dewatering bin device as filtered water and petroleum coke fines from the dewatering bin device; the closed drainage tank is separated from the slurry tank and is configured to receive filtered water and petroleum coke fine materials from the dewatering bin device; and a water tank configured to receive the filtered water from the drain tank.

Description

Technical Field

[0001] The present invention relates to a closed airtight system for obtaining marketable petroleum coke lumps from solidified petroleum coke in a coke drum unit, and a method for obtaining marketable petroleum coke lumps from solidified petroleum coke in a coke drum unit. Such a system and method may also be referred to as an environmental coke handling operation, or ECHO. Background Art

[0002] EP 2707458B1 discloses a closed slurry system and a method for obtaining marketable petroleum coke lumps from solidified petroleum coke in a coke drum unit. However, the system is not emission-free, because during the operation of the system, a large amount of steam and coke fines are still released into the environment. In addition, the cost needs to be further reduced.

[0003] WO 2018 / 001462 A1 discloses an arrangement of a coke drum unit and a coke crushing unit, which is used in a closed airtight system for obtaining marketable petroleum coke lumps from solidified petroleum coke in a coke drum unit, and includes the features of the preamble of independent claim 1.

[0004] A cold coke wastewater treatment method is known from US2007 / 262032 A1, which includes the following steps:

[0005] (a) Cooling the cold coke wastewater generated during the delayed coking process to 5 - 55°C under an absolute pressure of 0.1 - 0.25 MPa to obtain the cooled cold coke wastewater;

[0006] (b) Performing solid-liquid separation on the cooled cold coke wastewater to obtain a coke fines phase and a liquid phase;

[0007] (c) Further separating the obtained liquid phase to obtain an oil phase and a water phase; and

[0008] (d) Further discharging water from the obtained oil phase to obtain a separated oil phase. Summary of the Invention

[0009] Therefore, the object of the present invention is to provide a system and method with almost no steam and coke fines discharged into the environment and with reduced installation and operation costs.

[0010] This object is fully solved by the subject matter of independent claim 1 appended hereto. Advantageous embodiments are defined in the dependent claims.

[0011] According to an embodiment of the present invention not covered by the appended claims, there is provided a closed and airtight system for obtaining marketable petroleum coke lumps from solidified petroleum coke in a coke drum unit, the system being configured to be connected to a coke drum unit containing solidified petroleum coke, and the system comprising:

[0012] A coke crushing device for crushing petroleum coke into marketable petroleum coke lumps, the coke crushing device being configured to be connected to the coke drum unit, in particular by means of a flexible transition piece;

[0013] A pipeline, in particular a closed drain for guiding a petroleum coke slurry to a closed slurry tank;

[0014] A closed slurry tank;

[0015] A dewatering bin device configured to receive a petroleum coke slurry from the above-mentioned slurry tank, collect marketable petroleum coke lumps, and serve as a filter to guide runoff drain water from its lower region out as filtered water and guide petroleum coke fines out therefrom;

[0016] A closed drainage tank separated from the slurry tank, configured to receive filtered water and petroleum coke fines from the above-mentioned dewatering bin device;

[0017] A single water tank configured to receive filtered water from the above-mentioned drainage tank;

[0018] A hot quench water discharge pipeline configured to receive hot quench water from the coke drum unit and guide it to the above-mentioned closed slurry tank (E); and

[0019] A cooling water pipeline leading from the above-mentioned water tank, in particular from its middle part, to the above-mentioned hot quench water discharge pipeline, in particular to a junction point in the above-mentioned hot quench water discharge pipeline at a position above the above-mentioned closed slurry tank, the cooling water pipeline being configured to supply cooling water from the above-mentioned water tank to the hot water in the above-mentioned hot quench water discharge pipeline to prevent steam generation in the slurry tank.

[0020] The inventors of the present invention have found that in the conventional coke slurry system of EP 2707458B1, a large amount of steam and coke fines are discharged into the atmosphere because the water including coke fines discharged from the coke drum into the slurry tank during or after the quench operation evaporates in the slurry tank and is discharged into the environment via one or more vents.

[0021] The present inventor has further found that in the coke drum, the temperature of the coke that has solidified or is in the process of solidifying at the start of the quenching operation is as high as 550 °C. The quenching water added to the coke drum is up to 60 meters inside the coke drum. The pressure of this quenching water increases to 6 bar and it is heated to a temperature of up to 165 °C. However, since the coke drum, the coke crushing device, and the hot water discharge pipeline leading from the coke drum device to the closed slurry pit form a closed system, this quenching water does not evaporate before entering the slurry pit.

[0022] Therefore, the present inventor has determined that before this quenching water can enter the slurry pit, it is necessary to effectively cool this quenching water (including coke powder as well) to a temperature far below 100 °C under atmospheric conditions.

[0023] According to the above-described embodiment of the present invention, this is achieved by providing a cooling water pipeline that leads from a water tank, particularly from the middle part of the water tank, to the hot quenching water discharge pipeline, particularly to a junction point in the hot quenching water discharge pipeline at a position above the closed slurry pit. This cooling water pipeline supplies cooling water from the water tank to the hot water in the hot quenching water discharge pipeline to prevent the generation of steam in the slurry pit.

[0024] By this measure, the generation of steam in the closed slurry pit is reliably prevented, and the discharge of water is reliably avoided. More importantly, the discharge of coke powder and volatile organic compounds (VOCs) into the atmosphere is avoided. By this effective cooling and steam generation prevention measure, the hydrocarbon steam discharge is reliably prevented.

[0025] Through the cooling water pipeline, the amount of cooling water required to cool the hot quenching water can be individually adapted to the respective needs.

[0026] By the system according to the above-described embodiment of the present invention, the solidified coke inside the coke drum device can be effectively cooled.

[0027] In addition, the cooling water pipeline downstream of the above-mentioned junction point is under a lower pressure level, which avoids damage and enables the use of pipes with less material strength, which also helps to reduce costs.

[0028] In addition, since the temperature and pressure inside the hot quenching water discharge pipeline have been significantly reduced, the fire hazard is minimized.

[0029] According to an embodiment of the present invention, the system according to the present invention is configured to be connected to a coke drum unit, which is not part of the system. Thus, a coke crushing device for crushing petroleum coke into marketable pieces of petroleum coke is configured to be connected to the coke drum unit, in particular via a flexible transition connection member, and a hot quench water pipeline is configured to be connected to the coke drum unit, in particular to the bottom of the coke drum. In addition, a quench water pipeline can be provided, which is configured to be connected to the coke drum unit.

[0030] According to another embodiment of the system, the coke drum unit is part of the system.

[0031] According to an embodiment of the present invention, the above-mentioned slurry pond is configured as a closed, non-discharging slurry pond, which does not discharge into the environment.

[0032] According to another embodiment, the above-mentioned drainage pond is configured as a closed, non-discharging drainage pond, which does not discharge into the environment.

[0033] According to another embodiment, a mixing device, in particular a static mixer, is provided in the hot quench water discharge pipeline, in particular at the position of the junction of the cooling water pipelines, or at a position downstream of the junction of the cooling water pipelines but upstream of the inlet of the closed slurry pond.

[0034] The above-mentioned mixing device is in particular configured to mix cooling water with the hot quench water supplied from the coke drum unit through the hot quench water discharge pipeline in the pipeline.

[0035] By such a mixing device, the water flow of the cooling water added to the hot drainage flow and / or the generated flow of the cooled quench water downstream of the mixing device can be effectively controlled. Through such flow control, the temperature of the generated flow of the cooled quench water downstream of the mixing device can also be very effectively controlled. Therefore, precise temperature and pressure control can be achieved.

[0036] The above-mentioned mixing device can in particular be configured to adjust the flow rate of the cooling water from the cooling water pipeline to achieve the desired target temperature of the cooled quench water leaving the mixing device.

[0037] According to another embodiment, a heat rejection heat exchanger is provided in the cooling water pipeline, which is configured to reduce the temperature of the cooling water flowing through the cooling water pipeline with a second heat exchange medium, in particular ambient air.

[0038] With such a heat rejection heat exchanger, the temperature of the cooling water can be significantly improved, thereby significantly enhancing the cooling efficiency of the hot quench water flowing through the hot quench water discharge pipeline. This enables a reduction in the amount of cooling water flow mixed with the hot quench water flow. Such a heat rejection heat exchanger can achieve continuous cooling of the cooling water flowing through the cooling water pipeline. Such a heat rejection heat exchanger can be particularly configured as an air cooler.

[0039] According to another embodiment, a transfer water pump is provided in the cooling water pipeline, particularly at a position upstream of the heat rejection heat exchanger. Such a transfer water pump ensures stable cooling operation.

[0040] According to another embodiment, the system further includes a quench water pipeline leading from the above-mentioned single water tank to the coke drum unit for filling the coke drum unit with water to harden and cool the solidified petroleum coke. In particular, a quench water pump can be provided in the quench water pipeline.

[0041] According to another embodiment, the system further includes a control unit. During the operation of the system, the temperature of the solidified petroleum coke is as high as 550 °C, and the temperature of the water in the above-mentioned single water tank and flowing into the cooling water pipeline is 60 to 80 °C.

[0042] The above-mentioned control unit can be configured to supply quench water to the coke drum unit through the quench water pipeline, and the quench water is heated to a temperature as high as 165 °C in the coke drum unit, such that the water in the coke drum unit is up to 60 m high and the pressure level is up to 6 bar without evaporation.

[0043] The above-mentioned control unit can be further configured to operate the transfer water pump and the heat rejection heat exchanger such that the cooling water flow is mixed with the hot water in the hot quench water discharge pipeline, such that the temperature of the hot discharge water is reduced to a temperature of approximately 85 - 95 °C before reaching the slurry pond.

[0044] This embodiment provides particularly effective control and reliably prevents the generation of steam in the slurry pond.

[0045] At the start of the quench operation / quench step / quench cycle, particularly when adding quench water from the water tank to the coke drum through the quench water pipeline, the temperature of the solidified petroleum coke in the coke drum is as high as 550 °C. During this quench operation, the quench water at a temperature of about 70 °C in the water tank is used to cool the solidified coke drum, and this quench water is heated to a temperature as high as 165 °C relative to the hot solidified coke, thereby correspondingly reducing the temperature of the solidified petroleum coke.

[0046] At the end of the quenching operation, the temperature of the solidified petroleum coke can be reduced to about 100 °C. During the quenching operation, the coke drum can be repeatedly flooded with quenching water from the water tank and drained from the water, thereby hardening and cooling the coke and the coke drum. After the quenching operation, the upper and lower coke drum heads can be opened to allow the coke pieces to leave the coke drum.

[0047] According to another embodiment, the control unit is further configured to operate the heat rejection heat exchanger in the cooling water pipeline such that the temperature of the cooling water flowing through the cooling water pipeline is cooled to a temperature of about 50 to 70 °C by the secondary heat exchange medium, particularly ambient air. Through this embodiment, particularly effective cooling of the hot quenching water flowing through the hot quenching water discharge pipeline is achieved.

[0048] According to another embodiment, a drain discharge pipeline connecting the closed sump to the water tank is provided.

[0049] According to another embodiment, a drain pump and a centrifugal separation device, particularly a hydrocyclone device, are provided in the drain discharge pipeline for separating slurry particles from the drain in the sump.

[0050] According to another embodiment, a sump separated from the sump and separated from the slurry tank is provided, and the sump is configured to receive the slurry particles separated by the centrifugal separation device.

[0051] According to another embodiment, a sewage supply pipeline leading from the sump to the dehydration bin is provided.

[0052] According to another embodiment, a sewage pump is provided at or in the sump or in the sewage supply pipeline.

[0053] Water and coke powder enter the sump together from the dehydration bin. From the sump, the drain pump pumps the water together with the petroleum coke powder through the drain discharge pipeline in the direction of the water tank.

[0054] The centrifugal separation device, particularly the hydrocyclone device, separates the slurry particles and coke powder from the drain in the sump and transports them to a separate dedicated sump, which is separated from the sump and separated from the slurry tank. The sump receives the slurry particles and petroleum coke powder separated from the drain by the centrifugal separation device.

[0055] The drain from which the slurry particles and petroleum coke powder are separated in the centrifugal separation device is guided to the water tank through the clean water supply pipeline.

[0056] This embodiment / these embodiments provide for the effective removal of petroleum coke powder from the water downstream of the drainage pond, the effective and reliable separation of slurry particles and petroleum coke powder from the drainage, and the availability of the drainage for other purposes, particularly as quench water, cutting water, and conveying water in a closed coke slurry system.

[0057] Such a centrifugal separation device, particularly such a hydrocyclone, can further improve the separation of solids and can further accelerate the overall process.

[0058] Providing such a centrifugal separation device and such a sump eliminates the need for a separate tank (such as a water settling tank), which helps to reduce the overall cost of the system.

[0059] The sewage containing the slurry particles and petroleum coke powder separated from the drainage by the centrifugal separation device and collected in the sump can be returned to the dehydration bin through a separate sewage supply pipeline and a sewage pump. The sewage including these separated slurry particles and petroleum coke powder is pumped by the sewage pump through the sewage supply pipeline to the dehydration bin device, where they are captured in the coke filter bed and effectively removed from the process.

[0060] According to another embodiment, the above-mentioned single tank includes a settling stage, which is configured to separate solid particles at its bottom part, particularly at its low point.

[0061] According to another embodiment, a solid particle discharge pipeline is provided, which connects the above-mentioned single tank, particularly its bottom, to the sump.

[0062] According to the present invention, the above-mentioned single tank is configured as a single tank without a separate second tank. Therefore, compared with the traditional coke processing system, the floor area of the system according to the present invention is significantly reduced.

[0063] The tank serves as a water reservoir for the entire process. The settling stage of the single tank separates solid particles at the bottom, particularly at the low point of the single tank. This bottom, particularly the low point, can be drained to the sump as needed, particularly at regular intervals. This two-stage drainage purification (the first stage is the centrifugal separation device, and the second stage is the settling stage of the tank) allows for particularly effective purification of the drainage from the drainage pond.

[0064] According to another embodiment, a slurry pipeline is provided, which connects the slurry pond to the dehydration bin device, particularly to its top, for pumping the petroleum coke slurry to the dehydration bin device. A slurry pump can be provided in the slurry pipeline.

[0065] According to another embodiment, the flushing pipeline branches off from the cooling water pipeline and leads to the drain channel for supporting the flushing of the petroleum coke slurry and pumping it to the slurry pond. A valve can be provided in the flushing pipeline.

[0066] Through this flushing pipeline, it is possible to effectively support the flushing and pumping of the petroleum coke slurry from the outlet of the coke crusher through the drain channel.

[0067] By providing a valve in this flushing pipeline, the flushing pipeline can be opened as needed and cooling water / transport water can be supplied from the cooling water pipeline, and if there is no petroleum coke slurry to be transported to the slurry tank, the pipeline can be closed.

[0068] According to another embodiment, a sewage supply pipeline / sludge pipeline is provided leading from the sump to the dehydration bin device. A sewage pump can be provided in this sludge pipeline.

[0069] According to the present invention, the above system includes at least one of the first three and the fourth of the following elements:

[0070] A first exhaust gas collection pipeline that extends from the top of the enclosed slurry tank to the clear water tank, particularly to its top, for collecting excess gas phase from the slurry tank and supplying it to the clear water tank; and / or

[0071] A second exhaust gas collection pipeline that extends from the dehydration bin device, particularly its top, to the clear water tank, particularly to its top, for collecting excess gas phase from the dehydration bin device and supplying it to the said clear water tank; and / or

[0072] A third exhaust gas collection pipeline that extends from the enclosed drainage tank, particularly its top, to the clear water tank, particularly to its top, for collecting excess gas phase from the enclosed drainage tank and supplying it to the said clear water tank; and

[0073] A fourth exhaust gas collection pipeline that extends from the water tank, particularly the top of the water tank, to the exhaust gas treatment device, particularly the exhaust gas incineration device.

[0074] Through these exhaust gas collection pipelines, it is possible to reliably prevent the gas phase / vapor containing coke particles from entering the environment. Instead, the gas phase / vapor that usually contains coke particles is collected from the slurry tank / from the dehydration bin device / from the drainage tank and supplied to the clear water tank. From the clear water tank, the gas phase of the water / vapor that usually contains coke particles collected therein is not released into the environment through one or more vents (as is the case with other systems), but is supplied to the exhaust gas treatment device, for example, the exhaust gas incineration device.

[0075] The present invention also relates to a method for obtaining marketable petroleum coke lumps from solidified petroleum coke in a coke drum unit using the system according to any one of claims 3 to 11, including the following steps:

[0076] In the quenching and quench water cooling operations, the coke drum unit is filled with water through a quench water supply line leading from a single water tank to the coke drum unit, and hot quench water is discharged into a slurry tank through a hot quench water line, thereby hardening and cooling the solidified petroleum coke;

[0077] Among them, the cooling water flow is supplied from the water tank, especially from the bottom of the water tank, through a cooling water line to the hot quench water discharge line, especially to the junction point in the hot quench water discharge line at a position above the slurry tank, to cool the hot water in the hot quench water discharge line and prevent steam generation in the slurry tank.

[0078] The advantages and implementation embodiments of the system are also applicable to this method and will not be repeated here for the sake of brevity.

[0079] The above-mentioned quenching and quench water cooling operations can be repeated as often as needed. For this purpose, the coke drum can be closed at its bottom, for example, at its transition connection, which can be located between the coke drum unit and the coke crushing unit.

[0080] Quench water can be supplied from the water tank through the quench water supply line until there is enough quench water in the coke drum unit. Thereafter, the coke drum can be opened at its bottom, and the hot quench water flowing through the hot quench water discharge line is effectively cooled in the hot quench water discharge line by the cooling water flow from the water tank before reaching the slurry tank to prevent steam generation in the slurry tank. This can be repeated as often as needed, especially until the solidified coke in the coke drum unit is cooled to a target value, for example, about 100 °C.

[0081] According to the first implementation embodiment of this method, during the operation of the system, the temperature of the water in the above-mentioned single water tank and flowing into the cooling water line is about 70 °C; at the beginning of the above-mentioned quenching and quench water cooling operations, the temperature of the solidified petroleum coke is as high as 550 °C.

[0082] In the water filling step, quench water can be supplied to the coke drum unit through a quench water line, where the water is up to 60 m in the coke drum unit, so that it is heated up to 165 °C and the pressure level is up to 6 bar without evaporation.

[0083] In the water drainage step, the transfer water pump and especially the heat rejection type heat exchanger can be operated so that the cooling water flow is mixed with the hot water in the hot quench water discharge line, so that the temperature of the hot quench water is reduced to about 85 - 95 °C in the hot quench water discharge line before reaching the slurry tank.

[0084] In the water drainage step, the heat rejection type heat exchanger in the cooling water line can be operated so that the temperature of the cooling water flowing through the cooling water line is cooled to a temperature of about 50 to 70 °C relative to the secondary heat exchange medium (especially ambient air).

[0085] This provides particularly effective control.

[0086] The present invention also relates to a method for obtaining marketable petroleum coke lumps from solidified petroleum coke in a coke drum unit using a system according to any one of claims 9 to 11, the method comprising a water treatment operation, the water treatment operation comprising:

[0087] Using a drain pump, guiding the drain from a closed drain sump to a water tank through a drain discharge pipeline connecting the closed drain sump to the single water tank (particularly its upper part);

[0088] Using a centrifugal separation device, particularly a hydrocyclone device, in the drain discharge pipeline to separate slurry particles from the drain from the drain sump;

[0089] Receiving the slurry particles separated by the centrifugal separation device in a sewage sump, the sewage sump being separated from the drain sump and from the slurry sump;

[0090] Using a sewage pump provided at or in the sewage pit or in the sewage supply pipeline, guiding the sewage from the sewage pit to a dewatering bin unit through a sewage supply line.

[0091] Solid particles are separated at the bottom of the single water tank, at its low point.

[0092] Solid particles are discharged from the bottom of the single water tank, particularly the low point of the single water tank, to the sewage pit through a solid particle discharge pipeline, wherein the solid particle discharge line connects the single water tank, particularly its bottom, to the sewage pit.

[0093] Through this embodiment, particularly effective and relatively inexpensive purification of the drain in the drain sump is achieved, and the need for a second water tank (e.g., a water settling tank) other than the single water tank is eliminated. Through the high-performance water separation according to the present invention, the amount of water that must be added to the system, such as the amount of makeup water to be supplied to the water tank, is significantly reduced, which helps to save water and reduce costs.

[0094] The present invention also relates to a method for obtaining marketable petroleum coke lumps from solidified petroleum coke in a coke drum unit using a system according to any one of claims 1 to 11, the method comprising a water treatment operation having at least one of the first three of the following steps and the fourth:

[0095] Collecting excess gas phase from the slurry sump and supplying it to the clear water tank through a first exhaust gas collection pipeline extending from the top of the closed slurry sump to the clear water tank, particularly its top; and / or

[0096] Collect the excess gas phase from the above-described dewatering bin device, and supply the gas phase to the clear water tank through a second exhaust gas collection pipeline extending from the dewatering bin device, particularly from its top, to the clear water tank, particularly to its top; and / or

[0097] Collect the excess gas phase from the above-described enclosed drainage pond, and supply the gas phase to the clear water tank through a third exhaust gas collection pipeline extending from the enclosed drainage pond, particularly from its top, to the clear water tank, particularly to its top; and

[0098] Collect the excess gas phase from the clear water tank, and supply it to an exhaust gas treatment device, particularly an exhaust gas incineration device, through a fourth exhaust gas collection pipeline extending from the clear water tank, particularly from its top, to the exhaust gas treatment device, particularly to the exhaust gas incineration device.

[0099] Through these exhaust gas collection pipelines, it is possible to reliably prevent the gas phase / vapor containing coke particles from entering the environment. Instead, the gas phase / vapor that usually contains coke particles is collected as shown and supplied to an exhaust gas treatment device (not shown), for example, an exhaust gas incineration device.

[0100] The coke crushing device allows for in-line coke crushing during the hydraulic decoking operation, and the particle size can be reduced to 100 mm. It has a wide crushing capacity. The system and method according to the present invention are capable of handling any type of coke from sponge coke to shot coke.

[0101] The slurry pump can continuously transport the coke / water mixture from the slurry tank to the dewatering bin device, particularly during hydraulic decoking.

[0102] The system and method according to an embodiment of the present invention that are not covered by the appended claims achieve full automation and only require low operation and maintenance costs. They provide a water circulation system without the need to transport to a slurry system and without additional sewage treatment and wastewater discharge.

[0103] The water from the water tank can be used for various purposes within this system and other associated systems, such as, for example, the cold air for hydraulic cutting and solidifying petroleum coke, and for example, dilution or flushing.

[0104] The system of the present invention may further include at least one of the following elements / features:

[0105] A coke cutting device configured to cut solidified petroleum coke from the coke drum device;

[0106] Wherein, the above-mentioned coke cutting device is a water drill / cutting tool configured to drill a vertical channel into the solidified petroleum coke in the coke drum device and slice the solidified petroleum coke in the coke drum device. And

[0107] A removal device, particularly a vibrating feeder, which is configured to remove marketable petroleum coke pieces from a dehydration bin device.

[0108] Wherein, the above-mentioned diamond drill / cutting tool operates by using water from the water tank.

[0109] Wherein, the above-mentioned coke crushing device is formed as a corresponding coke crusher installed below the corresponding coke tower of the coke tower device.

[0110] Wherein, the above-mentioned coke crusher includes crushing rolls with teeth patterns.

[0111] Wherein, the above-mentioned coke crusher is used to grind the coke pieces cut from the solidified petroleum coke by the above-mentioned coke cutting device into marketable petroleum coke pieces of a size capable of pumping a petroleum coke slurry.

[0112] Wherein, for each pair of coke towers and coke crushers, a flexible transition connecting member is provided to connect the corresponding coke crusher to the corresponding coke tower.

[0113] Wherein, the dehydration bin of the above-mentioned dehydration bin device includes an upper cylindrical part and a lower conical part. A filtering channel, particularly an inner screen, is provided in the upper part of the upper cylindrical part and the lower conical part, and / or a perforation pattern is provided in the lower part of the lower conical part for removing accumulated water from the dehydration bin.

[0114] Wherein, a pipeline is provided to connect the above-mentioned filtering channel and the above-mentioned perforation pattern to a pipeline leading to the above-mentioned drainage pond.

[0115] Wherein, the number of coke towers corresponds to the number of dehydration bins, and one pair of coke towers and dehydration bins can be connected to other components at a time.

[0116] In one embodiment, the method may further include at least one of the following steps / cycles:

[0117] A second tower decoking and dehydration cycle, wherein the solidified petroleum coke is cut out from the coke tower device by a coke cutting device, the larger petroleum coke chunks are broken into marketable petroleum coke pieces by a coke crushing device, the marketable petroleum coke pieces are guided to a closed slurry pond through a closed water discharge channel with the help of conveying water (thus forming a petroleum coke slurry), the petroleum coke slurry is pumped from the slurry pond to a dehydration bin device, the marketable petroleum coke pieces are collected in the dehydration bin device, the filtered water and petroleum coke fines (or called petroleum coke powder) are guided to a drainage pond, which is separated from the slurry pond;

[0118] A third dehydration cycle, in which the filtered water and fine petroleum coke are guided from the dehydration bin device to a drainage pond, the filtered water and fine petroleum coke are pumped from the drainage pond to the above-mentioned single water tank, in which the petroleum coke powder is separated from the water and collected at its bottom, and the petroleum coke powder is guided to a sump; and

[0119] A fourth removal step, in which salable petroleum coke lumps are taken out from the dehydration bin device.

[0120] According to an embodiment of the present invention not covered by the appended claims, the system includes the features of original claim 1, without including the cooling water pipeline feature, but includes the first feature of original claim 8 and at least one of the second and third features, as follows:

[0121] A closed airtight system for obtaining salable petroleum coke lumps from solidified petroleum coke in a coke drum device, wherein the system is configured to be connected to a coke drum device containing solidified petroleum coke, and the system includes:

[0122] A coke crushing device for crushing petroleum coke into salable petroleum coke lumps, the coke crushing device being connected to a coke drum device containing solidified petroleum coke, and the coke crushing device being configured to be connected to the coke drum device especially through a flexible transition connection member;

[0123] A pipeline, especially a closed drain for guiding a petroleum coke slurry to a closed slurry pond;

[0124] A closed slurry pond;

[0125] A dehydration bin device configured to receive a petroleum coke slurry from the above-mentioned slurry pond, collect the above-mentioned salable petroleum coke lumps, and serve as a filter to guide the runoff drainage from its lower region as filtered water and petroleum coke powder out therefrom;

[0126] A closed drainage pond separated from the above-mentioned slurry pond, configured to receive filtered water and petroleum coke powder from the above-mentioned dehydration bin device;

[0127] A single water tank configured to receive filtered water from the above-mentioned drainage pond;

[0128] A hot quench water discharge pipeline leading from the above-mentioned coke drum to the above-mentioned closed slurry pond;

[0129] A drain discharge pipeline connecting the above-mentioned closed sump to the above-mentioned water tank;

[0130] Wherein, a drain pump and a centrifugal separation device, especially a hydrocyclone device, are provided in the above-mentioned drain discharge pipeline for separating slurry particles from the drainage from the drainage pond; and / or

[0131] Among them, a sump is provided that is separated from the above-mentioned drainage pond and the above-mentioned slurry, and is configured to receive the slurry particles separated by the centrifugal separation device.

[0132] The applicant expressly reserves the right to file a divisional application for such a combination of features at a later stage of the procedure.

[0133] The present claim may be followed by dependent claims directed to at least one of the following features:

[0134] Among them, a sewage supply pipeline is provided that leads from the above-mentioned sump to the above-mentioned dehydration bin;

[0135] Among them, a sewage pump is provided at or in the above-mentioned sump, or in the above-mentioned sewage supply pipeline.

[0136] Among them, the above-mentioned single water tank includes a sedimentation stage, which is configured to separate solid particles at its bottom, especially at its low point;

[0137] Among them, a solid particle discharge pipeline is provided that connects the above-mentioned single water tank, especially its bottom, to the above-mentioned sump;

[0138] Among them, the above-mentioned single water tank is configured as a single water tank without a separate second water tank;

[0139] And, it may additionally refer to the cooling water pipeline feature (the last feature of the original independent claim 1) and the features of the original claims 2-7 and 9-11.

[0140] The present invention relates to a system that includes the features of the original claim 1, does not include the cooling water pipeline feature, but includes at least one of the first three features and the fourth feature of the original claim 11, as follows:

[0141] A closed airtight system for obtaining marketable petroleum coke lumps from solidified petroleum coke in a coke drum unit, wherein the system is configured to be connected to a coke drum unit containing solidified petroleum coke, and includes:

[0142] A coke crushing device for crushing petroleum coke into marketable petroleum coke lumps, the coke crushing device being connected to a coke drum unit containing solidified petroleum coke, and the coke crushing device being configured to be connected to the coke drum unit especially through a flexible transition connector;

[0143] A closed waterway for guiding the petroleum coke slurry to a closed slurry pond;

[0144] A closed slurry pond;

[0145] A dewatering bin device configured to receive the petroleum coke slurry from the above-mentioned slurry sump, collect salable petroleum coke lumps, and act as a filter to lead the runoff drainage water from its lower area out as filtered water and fine petroleum coke;

[0146] A closed drainage sump separated from the above-mentioned slurry sump, configured to receive the filtered water and fine petroleum coke from the above-mentioned dewatering bin device;

[0147] A single clean water tank configured to receive the filtered water from the above-mentioned drainage sump;

[0148] A hot quench water discharge pipeline leading from the coke drum device to the closed slurry sump;

[0149] A first exhaust gas collection pipeline extending from the top of the closed slurry sump to the clean water tank, especially to its top, for collecting excess gas phase from the slurry sump and supplying it to the clean water tank; and / or

[0150] A second exhaust gas collection pipeline extending from the above-mentioned dewatering bin device, especially from its top, to the clean water tank, especially to its top, for collecting excess gas phase from the above-mentioned dewatering bin device and supplying it to the above-mentioned clean water tank; and / or

[0151] A third exhaust gas collection pipeline extending from the above-mentioned closed drainage sump, especially from its top, to the above-mentioned clean water tank, especially to its top, for collecting excess gas phase from the above-mentioned closed drainage sump and supplying it to the above-mentioned clean water tank; and

[0152] A fourth exhaust gas collection pipeline extending from the water tank, especially from the top of the water tank, to an exhaust gas treatment device, especially an exhaust gas incineration device.

[0153] The system includes at least one of the first, second, and third exhaust gas collection pipelines and the fourth exhaust gas collection pipeline.

[0154] After this claim are the appended dependent claims, wherein dependent claim 3 additionally addresses the cooling water pipeline feature (the last feature of the original independent claim 1), and wherein the other dependent claims include the features of the original claims 2 - 10.

[0155] The present invention will be further described below with reference to the accompanying drawings through embodiments.

[0156] Brief Description of the Drawings

[0157] Figure 1 A schematic connection diagram of a closed airtight system for obtaining salable petroleum coke pieces from solidified petroleum coke in a coke drum device according to an embodiment of the present invention.

[0158] Explanation of Reference Numerals

[0159] ECHO - system; X - coke drum unit; A - transition piece; B - mixing unit; C - coke crushing unit; D - enclosed sluice way; E - slurry basin; F - slurry pump; G - dewatering bin unit; H - vibrating feeder; I - drainage pond; K - drainage pump; Q - hydrocyclone; O - sump; P - sewage pump; L - fresh water tank; M - transfer water pump; N - air cooler; R - cutting pump; S - quench water pump; V1, V2, V3, V4 - valves; 1 - quench water supply line; 2 - hot quench water draining line; JP - joint point; 3 - cooling water line; 4 - flushing line; 5 - slurry line; 6 - drainage supply line; 7 - drainage discharge line; 8 - fresh water supply line; 9 - sewage supply line; 10 - solid particle discharge line; 11 - sludge / sewage supply line; 12 - cooling water return line; 13 - make - up water supply line; 14 - cutting pump water line; 15, 15a - d - exhaust gas collection lines. Detailed implementation mode

[0160] Figure 1 Schematic connection diagram of a closed and airtight system for obtaining marketable petroleum coke pieces from solidified petroleum coke in a coke drum unit according to an embodiment of the present invention.

[0161] This system can also be referred to as an environmental coke handling operation, or ECHO.

[0162] System ECHO includes a coke crushing unit C, which is installed below the bottom outlet of the coke drum unit X and is connected to the bottom outlet of the coke drum unit X through a transition piece a.

[0163] The bottom outlet of the coke crushing unit C is connected to a slurry basin E through an enclosed sluice way D.

[0164] The hot quench water draining line 2 extends from the coke drum unit X to the slurry basin E, and a mixing unit B is arranged in the hot quench water draining line 2, especially downstream of the joint point JP of the cooling water line 3 (which will be further explained below).

[0165] The slurry pipeline 5 extends from the slurry tank E to the dewatering bin unit G, particularly to its top, and a slurry pump F is arranged within the slurry pipeline 5.

[0166] The low point of the dewatering bin unit G is connected to a vibration feeder H, which in turn leads to a closed coke conveyor and / or to a coke storage device (not shown).

[0167] A drain water supply line 6 is attached to the middle height portion of the dewatering bin unit 6 and leads to a drain water basin I.

[0168] A drain water discharge line 7 extends between the drain water basin I and a hydrocyclone Q, and a drain pump K is arranged within the drain water discharge line 7.

[0169] A clean water supply line 8 extends from the hydrocyclone Q, particularly from its upper part, to a single water tank L.

[0170] A dirty water supply line 9 extends from the hydrocyclone Q, particularly from its bottom, to a dirty water pit O.

[0171] A sewage pump P is arranged within the sewage pit O and is connected to a dirty water supply line / sludge line 11, which extends from the sewage pit O to the dewatering bin unit G, particularly to its top.

[0172] An emergency cooling water supply line 1 is attached to the water tank L, particularly to the middle height portion of the water tank, and extends to a coke tower unit X. An emergency cooling water pump S is arranged within the emergency cooling water supply line 1.

[0173] A cutting pump water line 14 is attached to the water tank L, particularly to the middle height portion of the water tank L, and it also extends to the coke tower unit X, particularly to its top (not shown). A cutting pump R is arranged within the cutting pump water line 14.

[0174] A make-up water supply line 13 is shown as being attached to the upper part of the water tank L. The make-up water supply line 13 is connected to a water source (not shown) and includes a valve V4 through which the make-up water supply line 13 can be opened or closed or the amount of make-up water flowing into the water tank L can be adjusted.

[0175] The cooling water pipeline 3 is connected to the middle height part of the water tank L and extends to the joint point JP at the hot and cold water discharge pipeline 2. The transport water pump M and the heat rejection heat exchanger / air cooler N are arranged in the cooling water pipeline 3.

[0176] The solid particle discharge pipeline 10 is attached to the low point of the water tank L and leads to the sump O.

[0177] The cooling water backflow line 12 is attached to the cooling water pipeline 3 at a position downstream of the air cooler N and is attached to the water tank L, particularly to the middle height part of the water tank. A valve V2 is provided in the cooling water backflow line 12, through which the pipeline can be opened or closed, or the flow rate through the pipeline can be adjusted.

[0178] A valve V1 is provided in the cooling water pipeline 3, particularly at its end, just upstream of the joint point JP. Through the valve V1, the cooling water pipeline 3 can be opened or closed and / or the amount of cooling water flow can be adapted to respective needs.

[0179] The flushing line 4 branches off from the cooling water pipeline 3, particularly at its end part, and is connected to the drain channel D, particularly to its upper part. A valve V3 is provided in the flushing line 4, which can open or close the flushing line 4 and / or adjust the flushing water flow rate through the flushing line.

[0180] The first vent collection line 15a is connected to the top of the closed slurry tank E and leads to the clear water tank L, particularly to its top. The first vent collection line 15a is configured to collect the excess gas phase from the slurry tank E and supply it to the clear water tank L.

[0181] The second vent collection line 15b is connected to the top of the dehydration bin G and leads to the clear water tank L, particularly to its top. The second vent collection line 15b is configured to collect the excess gas phase from the dehydration bin device G and supply it to the clear water tank L.

[0182] The third vent collection line 15c is connected to the top of the closed drainage tank I and leads to the clear water tank L, particularly to its top. The third vent collection line 15c is configured to collect the excess gas phase from the drainage tank I and supply it to the clear water tank L.

[0183] In this figure, the first, second, and third exhaust gas collection pipelines 15a, 15b, and 15c are formed by the first exhaust gas collection pipeline 15a leading from the slurry tank E to the clear water tank L, and by separate second and third exhaust gas collection pipelines 15b and 15c joined to the first exhaust gas collection pipeline 15a, thus forming a joint collection pipeline 15.

[0184] In an alternative embodiment not shown here, the three exhaust gas collection pipelines 15a, 15b, and 15c can be formed as independent exhaust gas collection pipelines leading from the slurry tank E / from the dewatering bin device G / from the drainage tank E to the clear water tank L respectively.

[0185] The fourth exhaust gas collection pipeline 15d is connected to the water tank L, particularly to its top, and leads to an exhaust gas treatment device (not shown), for example, a vent incineration unit. The fourth exhaust gas collection pipeline 15d is configured to collect the excess gas phase from the clear water tank L and supply it to the exhaust gas treatment device (not shown), for example, an exhaust gas incineration device.

[0186] Through these exhaust gas collection pipelines 15a - 15d, it is possible to reliably prevent the gas phase / vapor containing coke particles from entering the environment. The gas phase / vapor usually containing coke particles is collected from the slurry tank E / from the dewatering bin device G / from the drainage tank E and supplied to the clear water tank L. From the clear water tank L, the gas phase of the water / vapor usually containing coke particles collected therein is not released into the environment through one or more exhaust holes (as is the case with other systems), but is supplied to an exhaust gas treatment device (not shown), for example, an exhaust gas incineration device.

[0187] The operation of the coke drum device X is typically a cyclic operation of 18 to 24 hours of coking, followed by a stage called "decoking".

[0188] During the coking stage, so-called petroleum coke is produced, which settles in the coke drum device X in the form of solid agglomerates, while the other products of the process leave the coke drum device at the top for further processing. This continues until the coke drum device X is filled with solid petroleum coke to a defined level.

[0189] In the next stage, namely the decoking stage, this solid / cured petroleum coke needs to be removed from the coke drum device X.

[0190] During the decoking stage, the agglomerated and cured petroleum coke is cut by high-pressure cutting water taken from the water tank L and supplied to the coke drum device X through the cutting pump water pipeline 14 and the cutting pump R.

[0191] As Figure 1 The ECHO system shown is designed to process coke as a zero - emission, reliable and safe system. The ECHO system can crush petroleum coke through the coke crushing device C and then convey it as a slurry to the dehydration bin device G. The slurry is understood to be a mixture of crushed coke particles and water that comes from the coke drum device X through the transition connector A, through the coke crushing device C and through the closed water channel D to the slurry sump E. Finally, the marketable coke lumps are discharged from the dehydration bin device G to the vibrating feeder H and from there to the coke storage area.

[0192] The system ECHO described here provides efficient separation of coke and water and produces clean water for reuse in the decoking process.

[0193] The system ECHO is generally a batch process and operates in four process stages, namely:

[0194] 1. Quench water cooling;

[0195] 2. Coke crushing and slurry transportation;

[0196] 3. Dehydration; and

[0197] 4. Dry coke discharge.

[0198] 1. Quench water cooling

[0199] First, through the operation of the quench water pump S, quench water is supplied from the water tank L through the quench water supply line 1 to the coke drum device X (the coke drum device X is closed at its bottom) until the quench water reaches a height of 40 meters in the coke drum device. The temperature of the hot - cured petroleum coke in the coke drum device is usually as high as 550 °C before quenching starts. The water cools the coke, and then the water gets hot and partially evaporates. The hydrostatic pressure inside the coke drum (up to 60 meters high) can result in a pressure of up to 6 bar, which can cause the water temperature to reach up to 165 °C without evaporation.

[0200] Then, the coke drum device X drains through a header (not shown) so that the hot quench water flows into the hot water discharge line 2. Through the operation of the transfer water pump M, cooling water is supplied from the water tank L to the junction point JP inside the hot water discharge line 2. For this purpose, the valve V1 is opened.

[0201] The water in the water tank L is usually at a temperature of about 60 °C to 80 °C. Through the air cooler N installed in the cooling water line 3, the temperature of the cooling water flow can be reduced to a range of about 50 °C to 70 °C.

[0202] The mixing device B provides a constant flow rate downstream thereof and can be controlled such that the temperature of the water flow leaving the mixing device at its downstream end is below 100 °C at atmospheric level, in particular at a temperature of 85 - 95 °C or lower, so that the cooled quench water reaching the slurry tank E remains in a liquid state and does not evaporate, thereby reliably preventing the generation of steam in the slurry tank E.

[0203] 2. Coke Crushing and Slurry Transportation

[0204] The operation stage of hydraulically drilling / cutting coke begins with drilling a pilot whole (drilling / cutting means not shown) in the solidified petroleum coke. High-pressure water supplied by the cutting pump R through the cutting water pipeline 14 is used for the drilling step and for cutting the coke in the coke tower device X. The cut coke falls through the transition connector A and is crushed by the coke crushing device C to a maximum particle size of 100 mm. Then, the crushed coke / water mixture flows through the enclosed water channel into the slurry tank E. The highly specialized slurry pump F transports the mixture of coke and water through the slurry pipeline 5 to the dehydration bin G.

[0205] The coke particles in the mixture will be trapped and retained in the coke bed in the dehydration bin device G, while the drained water is discharged from the dehydration bin device G to the drainage pond I through the drainage supply pipeline 6. The slurry pump F is configured to be able to transport a slurry with a coke / water ratio of 1 to 2 without clogging.

[0206] The main function of the dehydration bin G is to separate coke from water through a filtration process.

[0207] 3. Dehydration

[0208] In the dehydration stage, a coke bed is formed inside the dehydration bin device G, and the coke bed retains the coke powder in the slurry, while the clear water is discharged to the drainage pond I through the drainage supply pipeline 6. In particular, the water is discharged through the filter elements attached to the upper and lower collection rings of the dehydration bin device G. The dehydration bin device G is usually equipped with filter meshes, which are evenly placed along its inner wall.

[0209] Once there is enough coke in the dehydration bin device G to form a filter bed, the quality of the filtrate will improve, and the drained water flows from the dehydration bin device G to the drainage pond I through the drainage supply pipeline 6 until the end of the dehydration stage.

[0210] The lower part of the dehydration bin device G can be equipped with a conical screen, which is connected to the lower dehydration annular pipeline (which can also be referred to as the core dewatering line).

[0211] The hydraulic head generated between the outlet of the drainage supply pipeline 6 of the dehydration bin device G and the drainage pond I causes a negative pressure in the core dewatering pipeline, which supports the flow of water through the voids of the coarse coke material.

[0212] 4. Dry coke discharge

[0213] Once the coke cutting is completed and the slurry pump F stops, the drainage flow rate will decrease over time and approach a flow rate of 0 m 3 / h. When no more water is discharged through the drainage supply pipeline 6, the coke can be considered dry and ready for discharge.

[0214] During the dry coke discharge phase, the coke product will be discharged from the dehydration bin device G to the coke conveying system through the unloading vibrating feeder H, and then discharged to a storage facility (not shown) for marketable petroleum coke.

[0215] Water treatment

[0216] During all phases, water treatment is carried out continuously, which will be explained below.

[0217] The drainage water from the dehydration bin device G, especially during the start of the dehydration phase, contains a large amount of coke powder, which needs to be removed through further water treatment before the water can be reused.

[0218] The drainage water including coke powder from the dehydration bin device G is received in the drainage pond I. From there, the drainage pump K pumps it through the hydrocyclone Q, which is a centrifugal separation device, and reaches the water tank L via the clean water supply pipeline 8. In this hydrocyclone Q, the coke powder and solids from the drainage water are separated and led to the sewage sump O through the sewage supply pipeline 9.

[0219] From the sewage sump O, the sludge contained therein is pumped by the sewage pump P through the sludge / sewage supply pipeline 11 to the dehydration bin device G, where the coke powder and solids are captured and retained in the coke filter bed and effectively removed from the process.

[0220] The water filtered / purified by the hydrocyclone Q is received in the water tank L, and the water tank L serves as the water inventory for this process. During the sedimentation phase of the water tank L, the solid particles still contained in the water are collected at its bottom, especially at its low point. This low point is drained to the sewage sump O through the solid particle discharge pipeline 10, for example, at regular intervals.

[0221] The water from the water tank L can be used as high-pressure cutting water (pipeline 14), quench water (pipeline 1), or cooling and conveying water (cooling pipeline 3).

[0222] For the system ECHO described above with reference to the accompanying drawings, all of the above advantages and embodiments explained in the general part of this description apply, and, for the sake of brevity, they are not repeated here.

[0223] In other embodiments, the coke drum unit X includes two or more sets of coke drums X, transition connectors a, coke crushing device C, enclosed water discharge channel D, and hot quench water discharge pipeline 2.

[0224] In another embodiment, the dehydration bin unit G may include two or more dehydration bins G.

Claims

1. A closed airtight system for obtaining marketable petroleum coke lumps from solidified petroleum coke in a coke drum unit, wherein, The system is configured to be connected to a coke drum unit (X) containing solidified petroleum coke, and the system includes: A coke crushing device (C) for crushing the petroleum coke into marketable petroleum coke lumps, the coke crushing device (C) being configured to be connected to the coke drum unit (X), in particular connected to the coke drum unit (X) through a flexible transition connection member (a); A closed drain channel (D) for guiding the petroleum coke slurry to a closed slurry tank; A closed slurry tank (E); A dehydration bin device (G) configured to receive the petroleum coke slurry from the slurry tank (E), collect the marketable petroleum coke lumps, and serve as a filter to discharge the runoff drainage water from its lower region as filtered water and fine petroleum coke; A closed drainage tank (I) separated from the slurry tank (E), configured to receive the filtered water and fine petroleum coke from the dehydration bin device (G); A water tank (L) configured to receive the filtered water from the drainage tank (I); A hot quench water discharge pipeline (2) configured to receive the hot quench water from the coke drum unit (X) and guide it to the closed slurry tank (E); and It is characterized in that: The water tank (L) is configured as a single water tank (L) without a separate second water tank; and The system includes one or more of the following components: A first exhaust gas collection pipeline (15a) extending from the top of the closed slurry tank (E) to the clean water tank (L), in particular to its top, for collecting excess gas phase from the slurry tank (E) and supplying it to the clean water tank (L); A second exhaust gas collection pipeline (15b) extending from the dehydration bin device (G), in particular its top, to the clean water tank (L), in particular to its top, for collecting excess gas phase from the dehydration bin device (G) and supplying it to the clean water tank (L); and A third exhaust gas collection pipeline (15c) extending from the closed drainage tank (I), in particular its top, to the clean water tank (L), in particular to its top, for collecting excess gas phase from the closed drainage tank (I) and supplying it to the clean water tank (L); And the system includes a fourth exhaust gas collection pipeline (15d) extending from the water tank (L), in particular its top, to an exhaust gas treatment device, in particular an exhaust gas incineration device.

2. The system according to claim 1, characterized in that: The slurry tank (E) is configured as a closed, non-emission slurry tank (E) that does not discharge to the environment; and / or The drainage tank (I) is configured as a closed, non-emission drainage tank (I) that does not discharge to the environment.

3. The system according to claim 1 or 2, characterized in that, It further includes a cooling water pipeline (3), which leads from the water tank (L), i.e., from its middle part, to the hot quench water discharge pipeline (2), i.e., to a junction point (JP) in the hot quench water discharge pipeline (2) at a position above the enclosed slurry pond (E). The cooling water pipeline (3) is configured to supply cooling water from the water tank (L) to the hot quench water in the hot quench water discharge pipeline (2) to prevent steam generation in the slurry pond (E).

4. The system according to claim 3, wherein A mixing device (B), particularly a static mixer, is provided in the hot quench water discharge pipeline (2), particularly at the position of the junction point (JP) of the cooling water pipeline (3), or at a position downstream of the junction point (JP) of the cooling water pipeline (3) but upstream of the inlet of the enclosed slurry pond (E).

5. The system according to any one of the preceding claims, characterized in that, A heat rejection heat exchanger (N) is provided in the cooling water pipeline (3), which is configured to reduce the temperature of the cooling water flowing through the cooling water pipeline (3) against a second heat exchange medium, particularly ambient air.

6. The system according to any one of the preceding claims, wherein A transfer water pump (M) is provided in the cooling water pipeline (3), particularly at an upstream position of the heat rejection heat exchanger (N).

7. The system according to any one of the preceding claims, characterized in that, It further includes a quench water pipeline (1) leading from the single water tank (L) to the coke drum unit (X) for filling the coke drum unit (X) with water to harden and cool the solidified petroleum coke; and / or, a quench water pump (S) is provided in the quench water pipeline (1).

8. The system (2) according to any one of the preceding claims, characterized in that, It further includes a control unit. During the operation of the system, the temperature of the solidified petroleum coke is up to 550 °C, and the temperature of the water in the single water tank (L) and flowing into the cooling water pipeline (3) is 60 to 80 °C; The control unit is configured to supply quench water to the coke drum unit (X) through the quench water pipeline, where the water is up to 60 m, such that the water is heated to a temperature up to 165 °C and has a pressure level up to 6 bar inside the coke drum unit (X) without evaporation; The control unit is further configured to operate the transfer water pump (M) and the heat rejection heat exchanger (N) such that the cooling water flow mixes with the hot water in the hot quench water discharge pipeline (2), so that the temperature of the hot drain water is reduced to a temperature of about 85 - 95 °C before reaching the slurry pond (E); The control unit is particularly further configured to operate the heat rejection heat exchanger (N) in the cooling water pipeline (3) such that the cooling water flowing through the cooling water pipeline (3) is cooled to a temperature of about 50 to 70 °C by the second heat exchange medium, particularly ambient air.

9. The system according to any one of the preceding claims, characterized in that, A drain discharge pipeline (7) is provided, which connects the enclosed drain pond (I) to the water tank (L); A drain pump (P) and a centrifugal separation device, particularly a hydrocyclone device (Q), are provided in the drain discharge pipeline (7). The centrifugal separation device is used to separate slurry particles from the drain water from the drain pond (I); and / or A sump (O) is provided that is separated from the drainage tank (I) and from the slurry tank (E), and the sump is configured to receive the slurry particles separated by the centrifugal separation device (Q); and / or A sewage supply line / sludge line (11) is provided that leads from the sump (O) to the dehydration bin device (G); and / or A sewage pump (P) is provided at or in the sump (O) or in the sewage supply line (11).

10. The system according to claim 9, wherein The single tank (L) includes a sedimentation stage that is configured to separate solid particles at its bottom, particularly at its low point; and / or A solid particle discharge line (10) is provided that connects the single tank (L), particularly its bottom, to the sump (O); and / or The single tank (L) is configured as a single tank (L) without a separate second tank.

11. The system according to any one of the preceding claims, characterized in that, It further includes at least one of the following elements: A slurry line (5) that connects the slurry tank (E) to the dehydration bin device (G), particularly to its top, for pumping the petroleum coke slurry to the dehydration bin device (G); and / or A slurry pump (F) is provided in the slurry line (5); and A flushing line (4) branches off from the cooling water line (3) and leads to the drain channel (D) for supporting the flushing and pumping of the petroleum coke slurry to the slurry tank (E); and / or A valve (V3) is provided in the flushing line (4).

12. A method for obtaining marketable petroleum coke lumps from solidified petroleum coke in a coke drum unit (X) using the system according to any one of claims 3 to 11, the method comprising the following steps: In a quenching and quench water cooling operation, the coke drum unit (X) is filled with water through a quench water supply line (1) leading from the single tank (L) to the coke drum unit (X), and the hot quench water is discharged into the slurry tank (E) through a hot quench water line (2), thereby hardening and cooling the solidified petroleum coke; wherein, cooling water flows from the tank (L), particularly from its bottom, through a cooling water line (3) to the hot quench water discharge line (2), particularly to a junction point (JP) in the hot quench water discharge line (2) at a position above the slurry tank (E), to cool the hot water in the hot quench water discharge line (2) to prevent steam generation in the slurry tank (E).

13. The method according to claim 12, wherein During operation of the system, the temperature of the water in the single tank (L) and flowing into the cooling water line (3) is approximately 70 °C; At the start of the quenching and quench water cooling operation, the temperature of the solidified petroleum coke is as high as 550 °C; and In the filling step, quench water is supplied to the coke drum unit (X) through the quench water line (1), and the quench water reaches up to 60 m in the coke drum unit, such that the water is heated to a temperature of up to 165 °C and has a pressure level of up to 6 bar in the coke drum unit (X) without evaporating; In the drainage step, the transfer water pump (M) and in particular the heat rejection heat exchanger (N) are operated such that the cooling water stream is mixed with the hot water in the hot quench water discharge line (2) so that the temperature of the hot drainage is reduced to about 85 - 95 °C in the hot quench water discharge line (2) before reaching the slurry tank (E); and / or In the drainage step, the heat rejection heat exchanger (N) in the cooling water line (3) is operated such that the cooling water flowing through the cooling water line (3) is cooled to a temperature of about 50 to 70 °C by a second heat exchange medium, in particular ambient air.

14. A method for obtaining marketable petroleum coke lumps from solidified petroleum coke in a coke drum unit (X) using the system of any one of claims 9 to 11, the method comprising a water treatment operation, the water treatment operation comprising: Using a drainage pump (P), guiding drainage from the closed drainage tank (I) to the water tank (L) through a drainage discharge line (7) connecting the closed drainage tank (I) to a single water tank (L), in particular to its upper part; Using a centrifugal separation device, in particular a hydrocyclone device (Q), in the drainage discharge line (7) to separate slurry particles from the drainage from the drainage tank (I); Receiving the slurry particles separated by the centrifugal separation device (Q) in a sump (O) separated from the drainage tank (I) and separated from the slurry tank (E); Using a sump pump (P) provided at or in the sump (O) or in the sewage supply line (11), guiding sewage from the sump (O) to the dewatering bin device (G) through a sewage supply line (11); Separating solid particles at the bottom at the low point of the single water tank (L); and Discharging the solid particles from the bottom of the single water tank (L), in particular the low point of the single water tank (L), to the sump (O) through a solid particle discharge line (10), wherein the solid particle discharge line (10) connects the single water tank (L), in particular its bottom, to the sump (O).

15. A method for obtaining marketable petroleum coke lumps from solidified petroleum coke in a coke drum unit (X) using the system of any one of claims 1 to 11, the method comprising a water treatment operation, the water treatment operation comprising at least one of the first three and the fourth of the following steps: Collecting excess gas phase from the slurry tank (E) and supplying it to the water tank (L) by means of a first exhaust gas collection line (15a) extending from the top of the closed slurry tank (E) to the water tank (L), in particular to its top; and / or Collecting excess gas phase from the dewatering bin device (G) and supplying it to the water tank (L) through a second exhaust gas collection line (15b) extending from the dewatering bin device (G), in particular its top, to the water tank (L), in particular to its top; and / or Collect the excess gas phase from the enclosed drainage tank (I) and supply it to the clean water tank (L) through a third exhaust gas collection pipeline (15c) extending from the enclosed drainage tank (I), particularly from its top, to the clean water tank (L), particularly to its top; and Collect the excess gas phase from the clean water tank (L) and supply it to the exhaust gas treatment device, particularly to the exhaust gas incineration device, by means of a fourth exhaust gas collection pipeline (15d) extending from the clean water tank (L), particularly from its top, to the exhaust gas treatment device, particularly to the exhaust gas incineration device.

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