CN104334689A - Process and apparatus for producing metallurgical coke from petroleum coke obtained in mineral oil refineries by coking in ''non-recovery'' or ''heat-recovery'' coking ovens - Google Patents
Process and apparatus for producing metallurgical coke from petroleum coke obtained in mineral oil refineries by coking in ''non-recovery'' or ''heat-recovery'' coking ovens Download PDFInfo
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- CN104334689A CN104334689A CN201380024822.7A CN201380024822A CN104334689A CN 104334689 A CN104334689 A CN 104334689A CN 201380024822 A CN201380024822 A CN 201380024822A CN 104334689 A CN104334689 A CN 104334689A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B15/00—Other coke ovens
- C10B15/02—Other coke ovens with floor heating
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B45/00—Other details
- C10B45/02—Devices for producing compact unified coal charges outside the oven
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
- C10B57/045—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition containing mineral oils, bitumen, tar or the like or mixtures thereof
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Abstract
The invention relates to a process for producing metallurgical coke from petroleum coke produced in mineral oil refineries by coking in ''heat-recovery'' coking ovens, which proceeds from petroleum coke which is obtained or produced in mineral oil refineries and which from the outset has a volatiles content of 15 to 19 per cent by weight and an ash content of up to 2 per cent by weight, and which, for cyclical coking, is introduced compressed into a coking oven of the ''non-recovery'' or ''heat-recovery'' design equipped with at least one externally heated burner, such that the primary heating space or the secondary heating space below the coking oven chamber is, or both are, heated to a temperature of 1000 degree to 1550 degree, and, within a period of time of less than 120, the volatiles component present in the petroleum coke outgases completely, giving a metallurgical coke having a CSR strength of at least 44% and a CRI reactivity of less than 33%, which is suitable for use as metallurgical coke. The invention also relates to a coking oven constructed according to the principle of the ''non-recovery'' or ''heat-recovery'' coking ovens, comprising a primary heating space, and equipped with burners which heat the primary heating space.
Description
The present invention relates to a kind of method passing through the petroleum coke production metallurgy coke that the coking in " non-recycled " or " recovery of heat " coking furnace obtains from crude oil refineries, the method is from the petroleum coke produced in crude oil refineries or obtain, initially there is the volatiles of 15-19% weight percent and the grey mark up to 2% weight percent, this petroleum coke is introduced in the coking furnace constructed for the coking that circulates " non-recycled " or " recovery of heat " with the form of densification, described coking furnace is equipped with the burner of at least one indirect heating, thus the secondary heating space of coking furnace chamber bottom or main heating space or the two within the time cycle being less than 120h, be heated to the temperature of 1000 DEG C-1550 DEG C, volatiles in petroleum coke is discharged completely, obtain having at least 44%CSR intensity and be less than the reactive metallurgical coke of 33%CRI, be suitable for use as metallurgical coke.The invention still further relates to a kind of coking furnace, it according to " non-recycled " or " recovery of heat " coking furnace principles of construction, and comprises main heating space, and wherein this main heating space is equipped with the burner heated this main heating space.
The product that the product obtained mineral oil and crude Treatment in refinery not only comprises expection also comprises the product being called as petroleum coke, and it is formed by high boiling residue in crude oil refineries in distillation procedure, reforming step, hydrotreatment and cleansing operation.This petroleum coke typically comprises the carbon more than 88% weight percent, the volatile component (VOC) of 8-12% weight percent.This petroleum coke economic worth is low, and have and increase non-hope characteristic the operation that is worth relative to numerous, such as low CSR intensity and high CRI are reactive, do not find suitable consumer market for this reason.
Petroleum coke is applied, such as, for the production of the metallurgy industry of electrode through being usually used in segmentation.In steel industry, using petroleum coke in blast furnace operating, be such as used as reductive agent produce the pig iron, is infeasible, because the undercapacity of petroleum coke to use in blast furnace.In addition it is known that be mixed in Coal pitch mixture by small part petroleum coke, but the combined amount of petroleum coke is limited in being less than below the magnitude of 10% weight percent, and this is because the inferior quality of its blast-furnace coke produced causes.
Another problem of petroleum coke is the impurity from process crude oil, and impurity is accumulated in its removal process in petroleum coke.The impurity often run in petroleum coke such as has vanadium, nickel, sulphur, silicon, iron or titanium.Such as, content of vanadium in petroleum coke can up to 0.17wt%, and nickel content is up to 0.04wt%, and sulphur content is up to 5wt%.The consequence of these impurity is that petroleum coke cannot be directly used in heating, because do contaminate environment like this.Another characteristic of petroleum coke is that its flame temperature is lower than blast-furnace coke or coal.Be used as fuel and its operation for it, this is undesirable feature, this eliminates the possibility using it for multiple further process operation.Therefore need to find the economic possibility using petroleum coke.
By obtaining the substantive obstacle of metallurgical coke according to the characteristic adjustment coking process of refinery coke (petcoke), except product lacks intensity and impurity, be also the rate fluctuations of volatile component.The consequence of the rate fluctuations of volatile component is that the use in coking furnace is difficult to control, because the thermal characteristics of volatile component cannot calculate in fact.Generally speaking, the major portion of the petroleum coke produced in refinery has the volatile component of much lower amounts, be less than 19% weight percent, result is if used in " non-recycled " or " recovery of heat " coking furnace, coke be not suitable for maintain self-supporting burning and and then coking process.In coking furnace, only use refinery coke as in the situation of raw material, coking operation will almost pause after the coking cycle of some amount because the heat that produces of the volatile component that burns between coking period and the heat that stores in the refractory materials of stove be no longer enough to furnace temperature to be remained on more than 1000 DEG C at subsequent batches needed under high temperature.
The further difficulty affecting its coking is that refinery coke shows the very high swelling pressure during coking, and this is attributable to the volatile component of the low bursting point wherein existed.These compositions cause the substance of coke cake volume to increase during coking, are almost equivalent to inflation.Therefore be infeasible to petroleum coke coking in traditional coking furnace because the result increased as petroleum coke cake volume, the locular wall of coking furnace during coking by damaged.The increase of the petroleum coke cake volume caused because of the attribute of described petroleum coke cake also has following consequence, and the coke product namely using the refinery coke part in Coal pitch mixture to produce is very difficult to discharge from traditional coking furnace chamber.
WO0010914 A1 gives processing and uses the one possibility of refinery coke further.Which teach a kind of technique for the refinery coke (it obtains from the refinery coke precursor material of mineral oil) from crude oil refineries being imposed under high enough temp the pyrolysis operations sufficiently long time period under sufficient pressure, with obtain comprise reduction and the refinery coke of the volatile component of accurately adjustable 13-15% weight percent.In addition this technique also disclose to refinery coke desalt operation possibility, to remove the metallic impurity that it contains.Finally, it also teaches such as by sweetening agent being added to the possibility in fluidized-bed, the sulphur impurity in refinery coke being reduced to environmentally acceptable amount.Process provides following may, namely provide that a kind of have can the refinery coke of exactly determined volatile component and foreign matter content.The refinery coke here with 15-25% weight percent volatile matter is referred to as petroleum coke, is also referred to as " oil coal ", because their property class is similar to traditional pitch or calcining coal.
Have and the petroleum coke of amount of exactly determined volatile constituent and impurity can open the chance of the petroleum coke production metallurgy coke using gained.Crude oil processing creates a high proportion of petroleum coke with 15-19% weight percent volatile constituent.Up to the present this product not yet industrially carries out large-scale processing, because existing coking process not yet can solve the associated problem of this product: the swelling pressure dangerous between low energy content, low economic benefit, coking period, substantial pollution and high igniting loss.But, its high quality is demonstrated to the laboratory study of the metallurgical coke produced from this refinery coke.Stukov et al., " Increasing the Strength of Metallurgical Petroleum Coke to the Coking Batch ", Coke and Chemistry, 2009, the example of these researchs is given in the article of Vol.52, No.8, pp.349-352.Owing to cannot guarantee at present from the technical feasibility of petroleum coke production metallurgy coke, therefore need to obtain and a kind ofly produce the viable process of metallurgical coke by coking petroleum coke in coking furnace.
Therefore, the object of this invention is to provide a kind of technique, this technique can use the petroleum coke with the volatile component of 15-19% weight percent and the impurity level of increase for the coking under technical scale, and thus provide there is the intensity of enhancing and the coke of low reactivity, it is suitable for use as metallurgical coke.
The present invention achieves above-mentioned purpose by following method, the method provides the petroleum coke of the known volatile component with 15-19% weight percent and the known ash content up to 2% weight percent, then in " non-recycled " or " recovery of heat " coking furnace, coking is carried out under normal conditions with the form of densification to this petroleum coke, temperature wherein in heating chamber is between 1000 DEG C-1550 DEG C, time cycle is 120 hours, thus acquisition metallurgical coke, coking furnace is equipped with for heating main heating space or secondary heating space or both at least one burners, wherein main heating space is formed by the gas space be present in above petroleum coke cake in operation, secondary heating space is in the below of coking furnace chamber.
Ash oontent and the volatile component content of refinery coke were determined by analysis before coking, and this analysis carries out at coking furnace factory site or carries out unimportant in petroleum coke supplier part.Importantly for the performance of present invention process, known volatile component content should between 15% weight percent and 19% weight percent.
In order to the energy content with the reduction in the petroleum coke of described characteristic that the volatile component compensated because of low ratio causes, need to use indirect heating gas to heat main heating space or secondary heating space, because wish only to use this low-energy petroleum coke to be further processed to obtain metallurgical coke in non-recycled or recovery of heat coking reactor.Otherwise consequence is out-of-proportion length and uneconomic scorch time, because the low energy content of raw material is not enough to necessary temp temperature as one man remained on higher than 1000 DEG C, and be not enough to compensate and the high waste gas loss of operative association and radiation loss.
By using the coking furnace of non-recycled or heat recovery configurations, can to mainly comprising petroleum coke and the incoming mixture with described characteristic carries out coking, because this kind of structure of coking furnace reserves the gas space freely in operational conditions above petroleum coke, this gas space catches the high swelling pressure that petroleum coke produces.In the context of the present invention, determined the coke grade so obtained have higher than 44%CSR intensity and be less than the reactivity of 33%CRI, thus the metallurgical coke allowing them to be used as in such as iron and steel operation or blast furnace operating.If this coke is used in blast furnace operating, the above-mentioned numerical value of coke is useful concerning blast furnace operating.
The present invention be more particularly directed to a kind of method of the petroleum coke production metallurgy coke for obtaining from crude oil processing factory, wherein
. carried out the analysis of volatile content and ash oontent from the refinery coke of petrochemical processing, thus it can be categorized into batch of material according to known volatile constituent content and ash oontent, and
. by classification obtain based on anhydrous ashless petroleum coke batch of material the volatile content with 15-19% weight percent and be less than the petroleum coke batch of material of ash oontent of 2% weight percent, and to be placed in coke storage bunker or coke storage vessel, and
. be first filled in the compacting equipment that machine is placed into for densification from the petroleum coke of coke storage bunker or coke storage vessel, and be placed into subsequently and there is " non-recycled " or " recovery of heat " designs in the coking furnace of dimension, for the coking that circulates,
Further, it is characterized in that
. coking furnace is equipped with the burner for heating of at least one outside, for both the secondary heating space below the main heating space above heat oil coke cake or heating coking furnace chamber or heating, petroleum coke thus in coking furnace chamber by the temperature of the heated gas heats to 1000 of heat DEG C-1550 DEG C, and then obtains the metallurgical coke that CSR intensity at least 44% and CRI reactivity be less than 33% within the time period being less than 120 hours.
The coking furnace of the non-recycled or recovery of heat type with main and secondary heating space is the known technology in coking field.Walter Buss et al., " Thyssen Still Otto/PACTI Non-recovery coke making system ", Iron and Steel Engineer, Association of Iron and Steel Engineers, Pittsburgh, USA, Volume 76, describe the structure of the type in an illustrative manner in the article of No.1, January 1999, pages33-38 comprehensively.WO2011107198A1 describes the coking furnace group being suitable for the carbon raw material with the high swelling pressure being carried out to the coking furnace of coking in an illustrative manner.In heat-processed, the cake of petroleum coke reaches the temperature of 900-1100 DEG C of estimation.
As the result occurring to heat above the densification cake of petroleum coke, petroleum coke is heated to produce the coke of desired qualities by this way, and the some volatile compounds namely in petroleum coke lifts away from this batch of material with the form of crude oil coking gas.These compositions of discharging of a part burn for producing heat at least occasionally in substoichiometric mode in main heating space, and it is added with air at first.Partially combusted exhaust-gas mixture is exported via the lateral gas passage of coking furnace chamber subsequently, and is completely burned by burning further in secondary heating space.Therefore, as the result that there is volatile component in petroleum coke, petroleum coke is also heated from bottom, and result is except side door region, and petroleum coke cake is heated by from all sides, and obtains uniform coking quality.
The coke quality obtained can be determined as described, and CSR intensity at least 44%, CRI reactivity is less than 33%.Prerequisite is the petroleum coke batch of material using the volatile content with 15-19% weight percent and the ash oontent being less than 2% weight percent, and above-mentioned numerical value is based on anhydrous ashless petroleum coke batch of material.
Volatile component content can also be used by more exactly determined petroleum coke.In one embodiment of the invention, the volatile content of petroleum coke is 16-18% weight percent.As a result, can red-tape operati more effectively.
In order to realize the present invention, petroleum coke cake can heat from all sides in principle, thus reaches the temperature of expectation.In a preferred embodiment of the invention, heating is carried out in coking furnace, thus burner flame is introduced the gas space (being called as main heating space) above petroleum coke batch of material by level.For this purpose, in a preferred embodiment, at least one burner tube is positioned at the wall above coking furnace chamber door, the hot gas of this pipe feeding burner or combustion gases, and by opening in the gas space of opening above petroleum coke, thus heat this space with hot gas.The horizontally disposed main heating chamber that ensure that incoming gas inflow petroleum coke cake above of burner tube above batch of material, and as a result, directly contact between coke surface and combustion gases, thus decrease the burning consumption that undesired feed coke burns consumption and product coke.Meanwhile, between burner tube and the upper limb of batch of material, establish the vertical range more than 100mm, thus the top layer of petroleum coke can not burn.
In the context of the present invention, such as can also by being arranged in burner heat oil coke other in the secondary heating space below petroleum coke.In another embodiment, arrange at least one burner individually or simultaneously at the side end face opening part of secondary heating space, thus also improve the temperature of this heating space, and then strengthen the heating to batch of material from below.Finally, top ceiling opening can also be used in the coking furnace chamber for heating.It is also contemplated that the wall heating configuration realizing the coking furnace described in such as US4045299A, although the present invention does not attempt this way.
Can such as be regulated heating in the following manner by the ventilation of coking furnace chamber and stress management: the superpressure setting up 0.01-20mbar in coking furnace indoor.This can be realized by adjustment burner and trapdoor.In a preferred embodiment of the invention, in the following manner heating is regulated by ventilation and stress management: the superpressure setting up 0.1-10mbar in coking furnace indoor.
Sweet natural gas such as can be used to heat coking furnace chamber as heated air.Certainly in order to heat coking furnace chamber, liquefied gas, coke-oven gas, top gas or coal gas of converter can also be used as heated air.In order to realize method of the present invention, can also use from least two kinds of gas arbitrary proportions in following gas group mixture for heating: Sweet natural gas, liquefied gas, coke-oven gas, top gas or coal gas of converter.Suitable heated air is selected to depend on many factors, such as availability.
The content arranging the volatile component in petroleum coke is important, to realize expectation CSR intensity and the CRI reactivity of coke product, and can heating property in order to ensure the expectation of the heating properties by exhaust constituent.In one embodiment of the invention, before the grinding, petroleum coke mixture is mixed into bituminous coal as subsidiary, thus based on siccative mixture, volatile content is between 19-25% weight percent.In another embodiment, before the grinding, petroleum coke mixture is mixed into pitch as subsidiary, thus based on siccative mixture, volatile content is between 19-25% weight percent.In another embodiment, before the grinding, petroleum coke mixture is mixed into grade oil (oil grade) as subsidiary, thus based on siccative mixture, volatile content is between 19-25% weight percent.As a result, the coke product of acquisition have CSR intensity more than 44% and CRI reactivity be less than 33%.
In addition, as the result of method steps, the petroleum coke of employing has the ash oontent lower than 2% weight percent.Generally speaking this just enough protects and prevents from being burnt consumption by transition between the main combustion period of petroleum coke in coking.But, in order to ensure enough economy of method, often need to take extra measure to prevent the useless burning consumption of refinery coke.For this purpose, higher volatile component content can also be selected, if the burning of subsidiary to petroleum coke of petroleum coke mixing has retarding effect.
If the subsidiary of petroleum coke mixing exists impact for the burning consumption behavior of petroleum coke, the ash oontent of higher category also can be selected.The function of ash oontent is the useless burning preventing petroleum coke.In one embodiment of the invention, petroleum coke mixture is mixed with ash content as subsidiary, thus ash oontent is arranged between 2-12% weight percent based on dry total mixture, be preferably 2-6% weight percent, and this mixture is polished and is classified, the particle size d obtained is distributed as 0.5<d<3mm, and is placed in coke storage bunker or coke storage vessel for the classification mixture of further coking.Grinding and classification are that to guarantee that ash content distributes in the product in the following manner necessary: namely ash content does not damage obtained CSR intensity and CRI is reactive.
In another embodiment, petroleum coke mixture is mixed with coal containing ash content as subsidiary, thus ash oontent is arranged on 2-12% weight percent based on dry total mixture, be preferably 2-6% weight percent, and this mixture is polished and is classified, the particle size d obtained is distributed as 0.5<d<3mm, and is placed in coke storage bunker or coke storage vessel for the classification mixture of further coking.Petroleum coke mixture can also mixing subsidiary before or after all or part of grinding in grinding plant, be less than 3mm with the average particle size particle size obtaining lingering section.Grinding operation can also be carried out to a part for total mixture.In this situation, this part is preferably 70-95% weight percent, and more excellent is 80-90% weight percent.
In the context of the present invention, the water-content of used petroleum coke can also be changed by adding water.Add the stability that water can improve petroleum coke cake.In one embodiment of the invention, the overall water content of incoming mixture is adjusted to 7-11.5% weight percent by adding liquid water, and is placed in coke storage bunker or coke storage vessel for this mixture of further coking.Water directly can be added or can by spraying or flooding interpolation.
In the context of the present invention, incoming mixture can carry out compacting with densification facility or any equipment before charging, thus the density of incoming mixture is 0.8t/m
3to 1.225t/m
3.Densification operations usually can by pressing, clashing into, knock or the step of vibration processes is carried out, and these steps also can combine execution.Preferably, before charging, incoming mixture percussion device carries out compacting, makes the density of incoming mixture be 1.0t/m
3to 1.150t/m
3.
In order to affect coking operation, before starting heating, the separate layer (parting layer) of burning inertia can be applied to the surface of stove load.This layer is such as made up of coke.In another embodiment, this burning inertia separate layer is made up of coal.Secondly, this burning inertia separate layer can also be made up of ash content or sand.Finally, this burning inertia separate layer can be made up of the block such as having granularity and be less than the lump coal of 25mm or the carbon containing of lump coke form.
In one embodiment of the invention, the thickness of separate layer is 0.2cm to 25cm.Separate layer can apply in any way.Therefore, such as, separate layer can be applied on the coke of compacting with coke compacting machine, wherein coke compacting machine at percussion hammer (ram) upper or between be furnished with interpolation opening.This coke compacting equipment requiring to include at least one percussion hammer has interpolation equipment on batch of material.Be provided with percussion hammer or for the knocking of compacting operation, to vibrate and the coke compacting machine of presses is prior art, and to be described by way of example in WO2010102714A2.
In another embodiment, subsidiary is stored in coke storage bunker in a special axostylus axostyle, and during loading compact, subsidiary is introduced in coke compacting machine in the opening of this object from this axostylus axostyle.Subsidiary can be added in coke compacting machine in the opening of this object by spiral conveyer.Therefore, subsidiary can also pass through sliding system, chain conveyor system, and free-falling equipment or sliding apparatus are added in coke compacting machine in the opening of this object.Separate layer also can be placed on the surface of batch of material subsequently outside compacting equipment.
In another embodiment of the invention, incoming mixture mixes with subsidiary in four continuous print mixing bunkers, and the mixing of grinding and abrasive substance wherein occurs.Grinding and mixing can also occur in multiple stage.Incoming mixture can also be preheated.Therefore, such as can by carrying out preheating and the temperature of incoming mixture is adjusted to 120-250 DEG C in heatable container before incoming mixture is filled into coking furnace.
The metallurgical coke obtained from petroleum coke can carry out any further use.It can be used as blast-furnace coke especially.Or it can be used for nonferrous metallurgy and manufactures metal or for the manufacture of electrode.
The invention still further relates to a kind of device that can realize the inventive method, specifically a kind of petroleum coke for obtaining from crude oil source mill produces the coking furnace of coke, wherein
. coking furnace is with the principles of construction of " non-recycled " or " recovery of heat " coking furnace group, and it has the coking width of furnace of 2-6 rice and the coking furnace chamber length of 10-20 rice, thus for the height of 2 meters, the volume of coking furnace chamber is 40-240m
3, and
. coking furnace has brick roof apex, and it is present in the gas space above coke cake under can being formed in occupied state with coking furnace chamber below, as main heating space, and
. coking furnace is equipped with side direction exhaust steam passage and is positioned at the secondary heating space below coke, and
. coking furnace chamber is provided with coke storage bunker or coke storage vessel and filling machine, and filling machine can fill coking furnace chamber from coke storage bunker or coke storage vessel,
It is characterized in that
. coking furnace chamber external burner heats, and external burner heats main heating space, and burner is via the collection main on front side of coking furnace chamber and the adjustable arm entering burner, is provided with heated air and oxygen-containing gas.
External burner can be taken up an official post to anticipate at coking furnace chamber and be arranged, to allow the main heating space of heating.They can arrange separately or arrange multiple on each coking furnace chamber.But, in a preferred embodiment, a burner or multiple burner are positioned at least side of coking furnace chamber, in the wall comprising coking furnace chamber door, above coking furnace chamber door, and heat main heating space by the opening being arranged in the wall comprising coking furnace chamber door.By this opening, the ozzle section of burner tubes is directed in the gas space.
For this purpose, a burner or multiple burner are positioned at least side of coking furnace chamber, in the wall comprising coking furnace chamber door, above coking furnace chamber door, and heat main heating space by the opening being arranged in the wall comprising coking furnace chamber door.In a preferred embodiment, between burner tubes outlet and the top of petroleum coke batch of material, establish the vertical range more than 100mm.Further, on the top ceiling of coking furnace chamber, by burner arrangement be joint space-efficient.
In one embodiment of the invention, one or more burner tubes outlet is made up of high temperature steel.In another embodiment, one or more burner tubes outlet is made up of refractory ceramic material.If installed multiple burner, this may reside on one or more burner.
In a preferred embodiment of the invention, coking furnace of the present invention is associated with other multiple coking furnaces, to form coking furnace group, and collects main and extends on front side of the coking furnace chamber of coking furnace group.It is familiar that non-recycled or recovery type heat coking furnace are gathered into coking furnace group concerning coke-oven plant's technical field those of ordinary skill.
Secondary heating space also can heat by one or more external burner, and wherein one or more external burner, via the collection main on front side of coking furnace chamber and the adjustable arm entering burner, are provided with heated air and oxygen-containing gas.In one embodiment of the invention, burner is the form of blower fan burner.In order to implement, collect main and exemplarily can be positioned on coking furnace chamber top ceiling.Collection main can also be installed under coking furnace service-delivery machine platform or along anchor rack to be installed.Finally, collect main can arrange arbitrarily, to guarantee the supply to burner.
Arm exemplarily can be regulated by tap, slide block, nozzle, flap valve or shield.In one embodiment of the invention, coking furnace group comprises pressure regulating platform, and wherein heated air is restricted to required pressure, and heated air is passed to burner from pressure regulating platform via collection main, and provides correct pressure directly to burner.
The invention still further relates to a kind of compacting equipment for compacting coal, it is suitable for being applied in coke compact by separate layer during production compact.WO2010102714A2 describes the appropriate compacting equipment that can be used in producing this equipment.This equipment has 6 percussion hammers, and it is used as side during forming compact by presses.In one embodiment of the invention, percussion hammer is hydraulically operated.Suitable compacting equipment can also be formed by vibration device.In order to form compacting equipment of the present invention, in WO2010102714A2, the upper plate of the vibration device of compacting equipment or upper percussion hammer are provided with tipper, can be placed on the surface of compact by tipper subsidiary, thus in compacting operation, the other auxiliary nitride layer of being added by tipper is formed on the surface of the incoming mixture of compacting.
The invention still further relates to a kind of coking furnace group, it is made up of coking furnace of the present invention, and is equipped with above-mentioned compaction apparatus.
Method of the present invention mainly adopts in the coking furnace group formed by coking furnace chamber of the present invention, and coking furnace group also has the slave belonging to prior art.These slaves such as comprise 1-10 type storehouse, wherein store different coke feed mixtures.Such as also comprise 1-4 grinding plant, a 1-4 screening plant or 1-4 mixing bunker, wherein petroleum coke, subsidiary or combined feed total feed mixture are stored, classify or mix.Coking furnace group can also be provided with compacting equipment.
Tool of the present invention has the following advantages, which provide and use economic equipment, petroleum coke (it has the volatile content of 15-19% weight percent) for obtaining from original refinery and mineral oil source mill is produced to be had more than 44%CSR intensity and is less than the reactive coke of 33%CRI, thus makes it possible to the coke using gained in raw metalliferous smelting operation or blast furnace operating.Example
Described below is the analytical procedure of refinery coke, is used to provide the petroleum coke of the raw material petroleum coke as the inventive method.
1. volatile content.The volatile content of refinery coke is exemplarily determined according to DIN 51720.The amount measured is the remnant parts be heated to by coke in 7 minutes at reduced pressure conditions after 900 DEG C.Determine that the method for the volatile content of coke provides in US6074205A fast.
2. ash oontent.Ash oontent is exemplarily determined according to DIN 51719.The amount measured is the remnant parts of coke in stove at 815 DEG C after burning.Determine that in coke, the method for ash oontent provides in DE3120064A1 fast.
3. coke strenth.The intensity of coke is determined by the test being called as CSR test.CSR represents here " after reaction coke strenth ".The amount measured is that the test block of 200g coke is at 1100 DEG C of carbonic acid gas (CO at 1bar
2) under heating 2 hours and the weight percent of residue that obtains after 30 minutes with the velocity process of per minute 600 turns in rotary drum subsequently.This testing method at present by likewise known, and is standardized, and exemplarily it is described in EP0738780B2.
4. coke reactivity.The reactivity of coke is determined by the test being called as CRI test.CRI represents here " coke reactivity index ", and describes the chemical reactivity of coke.The amount measured is that the test block of 200g coke is at 1100 DEG C of carbonic acid gas (CO at 1bar
2) under the weight percent of residue that obtains after 2 hours of heating.The value of gained is referred to as CRI reactivity.The value of gained is less, and reactivity is lower.The method is simple and execution is quick, and the behavior in blast furnace operating of characteristic CRI value and coke has good correlation.The method is at present by likewise known, and by ISO 18894 stdn, exemplarily it is described in EP1142978A1.
Claims (51)
1. the method for petroleum coke production metallurgy coke for obtaining from crude oil processing industry, wherein
. carried out the analysis of volatile content and ash oontent from the refinery coke of petrochemical processing, thus it can be categorized into batch of material according to known volatile constituent content and ash oontent, and
. obtained by classification and based on anhydrous ashless petroleum coke batch of material, there is the volatile content of 15-19% weight percent and be less than the petroleum coke batch of material of ash oontent of 2% weight percent, and described petroleum coke batch of material is placed in coke storage bunker or coke storage vessel, and
. be first filled in the compacting equipment that machine is placed into for densification from this petroleum coke of coke storage bunker or coke storage vessel, and be placed into subsequently and there is " non-recycled " or " recovery of heat " designs in the coking furnace of dimension, for the coking that circulates,
It is characterized in that
. described coking furnace is equipped with the burner for heating of at least one outside, for both the secondary heating space below the main heating space above heat oil coke cake or heating coking furnace chamber or heating, petroleum coke thus in coking furnace chamber by the temperature of heated gas heats to 1000 DEG C-1550 DEG C, and then obtains having at least 44%CSR intensity and is less than the reactive metallurgical coke of CRI of 33% within the time period being less than 120 hours.
2. method according to claim 1, is characterized in that, before coking, the volatile content of petroleum coke is 16-18% weight percent.
3. method according to claim 1 and 2, is characterized in that, heating is the burner flame in the gas space by being incorporated into above petroleum coke batch of material, carries out in coking furnace.
4. the method according to claim arbitrary in claims 1 to 3, is characterized in that, coking furnace is equipped with at least one indirect heating burner, and for the secondary heating space below heat oil coke cake, petroleum coke cake is heated thus.
5. method according to claim 4, is characterized in that, heating is the burner flame in the gas space by being incorporated into below petroleum coke cake, carries out in coking furnace.
6. the method according to claim arbitrary in claim 1 to 5, is characterized in that, is regulated in the following manner by ventilation and stress management to heating: the superpressure setting up 0.01-20mbar in coking furnace indoor.
7. the method according to claim arbitrary in claim 1 to 5, is characterized in that, is regulated in the following manner by ventilation and stress management to heating: the superpressure setting up 0.1-10mbar in coking furnace indoor.
8. the method according to claim arbitrary in claim 1 to 7, is characterized in that, Sweet natural gas is used as the heated air heated.
9. the method according to claim arbitrary in claim 1 to 7, is characterized in that, liquefied gas is used as the heated air heated.
10. the method according to claim arbitrary in claim 1 to 7, is characterized in that, coke-oven gas is used as the heated air heated.
11. methods according to claim arbitrary in claim 1 to 7, is characterized in that, top gas is used as the heated air heated.
12. methods according to claim arbitrary in claim 1 to 7, is characterized in that, coal gas of converter is used as the heated air heated.
Method in 13. according to Claim 8 to 12 described in arbitrary claim, it is characterized in that, use from least two kinds of gas arbitrary proportions in following gas group mixture for heating: Sweet natural gas, liquefied gas, coke-oven gas, top gas or coal gas of converter.
14. methods according to claim arbitrary in claim 1 to 13, it is characterized in that, before the grinding, petroleum coke mixture is mixed with the bituminous coal as subsidiary, thus volatile content based on siccative mixture between 19-25% weight percent.
15. methods according to claim arbitrary in claim 1 to 13, it is characterized in that, before the grinding, petroleum coke mixture is mixed with the pitch as subsidiary, thus volatile content based on siccative mixture between 19-25% weight percent.
16. methods according to claim arbitrary in claim 1 to 13, is characterized in that, before the grinding, petroleum coke mixture is mixed with the grade oil as subsidiary, thus volatile content based on siccative mixture between 19-25% weight percent.
17. methods according to claim arbitrary in claim 1 to 16, it is characterized in that, petroleum coke mixture is mixed with the ash content as subsidiary, thus ash oontent is arranged between 2-12% weight percent based on dry total mixture, and this mixture was polished and is classified before coking, what obtain the particle size d of part is distributed as 0.5<d<3mm, and is placed in coke storage bunker or coke storage vessel for the classification mixture of further coking.
18. methods according to claim arbitrary in claim 1 to 16, it is characterized in that, petroleum coke mixture is mixed with coal containing ash content as subsidiary, thus ash oontent is arranged between 2-12% weight percent based on dry total mixture, and this mixture was polished and is classified before coking, what obtain the particle size d of part is distributed as 0.5<d<3mm, and is placed in coke storage bunker or coke storage vessel for the classification mixture of further coking.
19. methods according to claim 18, it is characterized in that, petroleum coke mixture is mixed with coal containing ash content as subsidiary, thus ash oontent is arranged between 2-6% weight percent based on dry total mixture, and this mixture was polished and is classified before coking, what obtain the particle size d of part is distributed as 0.5<d<3mm, and is placed in coke storage bunker or coke storage vessel for the classification mixture of further coking.
20., according to claim 14 to the method described in arbitrary claim in 19, is characterized in that, petroleum coke mixture is all or part of grinding in grinding plant before or after mixing subsidiary also, is less than 3mm with the average particle size particle size obtaining lingering section.
21. methods according to claim arbitrary in claim 1 to 20, it is characterized in that, the overall water content of incoming mixture is adjusted to 7-11.5% weight percent by adding liquid water, and is placed in coke storage bunker or coke storage vessel for this mixture of further coking.
22. methods according to claim arbitrary in claim 1 to 21, it is characterized in that, incoming mixture carries out compacting with densification facility before charging, thus the density of incoming mixture is 0.8t/m
3to 1.225t/m
3.
23. methods according to claim arbitrary in claim 1 to 21, it is characterized in that, incoming mixture carries out compacting with percussion device before charging, thus the density of incoming mixture is 1.0t/m
3to 1.150t/m
3.
24. methods according to claim arbitrary in claim 1 to 23, is characterized in that, before starting heating, the separate layer of burning inertia are applied to the surface of stove load.
25. method according to claim 24, is characterized in that, the separate layer of burning inertia is made up of coke.
26. method according to claim 24, is characterized in that, the separate layer of burning inertia is made up of coal.
27. methods according to claim 24, is characterized in that, the separate layer of burning inertia is formed by having the carbon containing block being less than 25mm granularity.
28. methods according to claim 24, is characterized in that, the separate layer of burning inertia is made up of ash content or sand.
29. methods according to claim arbitrary in claim 24 to 28, it is characterized in that, the thickness of separate layer is 0.2cm to 25cm.
30. methods according to claim arbitrary in claim 24 to 29, it is characterized in that, be applied on the coke of compacting with coke compacting machine by separate layer, wherein coke compacting machine comprises the interpolation opening for this object on upper plate or patrix.
31. methods according to claim arbitrary in claim 24 to 30, it is characterized in that, subsidiary is stored in coke storage bunker in a special axostylus axostyle, and at loading duration, subsidiary is introduced in coke compacting machine in the opening of this object from this axostylus axostyle.
32. methods according to claim 31, is characterized in that, subsidiary is added in coke compacting machine in the opening of this object by spiral conveyer.
33. methods according to claim 31, is characterized in that, subsidiary is added in coke compacting machine in the opening of this object by sliding system.
34. methods according to claim 31, is characterized in that, subsidiary is added in coke compacting machine in the opening of this object by chain conveyor system.
35. methods according to claim arbitrary in claim 24 to 34, is characterized in that, incoming mixture mixes with subsidiary in nearly four continuous print mixing bunkers, and the mixing of multistage grinding and abrasive substance wherein occurs.
36. methods according to claim arbitrary in claims 1 to 35, is characterized in that, before incoming mixture is filled into coking furnace in heatable container by the preheating temperature of incoming mixture to 120-250 DEG C.
The coking furnace of coke is produced for 37. 1 kinds, wherein for the petroleum coke obtained from crude oil processing industry
. coking furnace is with the principles of construction of " non-recycled " or " recovery of heat " coking furnace group, and it has the coking width of furnace of 2-6 rice and the coking furnace chamber length of 10-20 rice, thus for the height of 2 meters, the volume of coking furnace chamber is 40-240m
3, and
. coking furnace has brick roof apex, and it is present in the gas space above coke cake under can being formed in occupied state with coking furnace chamber below, as main heating space, and
. coking furnace is equipped with the secondary heating space of side direction exhaust steam passage and below, and
. coking furnace chamber is provided with coke storage bunker or coke storage vessel and filling machine, and filling machine can fill coking furnace chamber from coke storage bunker or coke storage vessel,
It is characterized in that
. coking furnace chamber external burner heats, and external burner heats main heating space, and burner is via the collection main on front side of coking furnace chamber and the adjustable arm entering burner, is provided with heated air and oxygen-containing gas.
38. according to coking furnace according to claim 37, it is characterized in that, a burner or multiple burner are positioned at least side of coking furnace chamber, in the wall comprising coking furnace chamber door, above coking furnace chamber door, and heat main heating space by the opening being arranged in the wall comprising coking furnace chamber door, between burner tubes outlet and the top of petroleum coke batch of material, establish the vertical range more than 100mm.
39. coking furnaces according to claim 37 or 38, is characterized in that, burner tubes outlet is made up of high temperature steel.
40. coking furnaces according to claim 37 or 38, is characterized in that, burner tubes outlet is made up of refractory ceramic material.
41. coking furnaces according to claim arbitrary in claim 37 to 40, it is characterized in that, coking furnace is associated with other multiple coking furnaces, to form coking furnace group, and collects main and extends on front side of the coking furnace chamber of coking furnace group.
42. coking furnaces according to claim arbitrary in claim 37 to 41, it is characterized in that, secondary heating space also heats by external burner, wherein external burner is provided with heated air and oxygen-containing gas via the collection main on front side of coking furnace chamber, described main via adjustable tube opening in burner.
43. coking furnaces according to claim arbitrary in claim 37 to 42, it is characterized in that, burner is the form of blower fan burner.
44. coking furnaces according to claim arbitrary in claim 37 to 43, is characterized in that, collect main and are positioned on coking furnace chamber top ceiling.
45. coking furnaces according to claim arbitrary in claim 37 to 44, is characterized in that, collect main and are positioned under the platform of coking furnace service-delivery machine.
46. coking furnaces according to claim arbitrary in claim 37 to 45, it is characterized in that, arm is regulated by tap, slide block, nozzle, flap valve or shield.
47. coking furnaces according to claim arbitrary in claim 37 to 45, it is characterized in that, coking furnace group comprises pressure regulating platform, and wherein heated air is restricted to required pressure, and heated air is passed to burner from pressure regulating platform via collection main.
48. 1 kinds of compacting equipments for compacting coal, it comprises up to 8 percussion hammers, percussion hammer is used to form compact by densification facility, it is characterized in that, described compacting equipment comprises tipper, can be placed on the surface of compact by tipper subsidiary, thus in compacting operation, the other auxiliary nitride layer of being added by tipper is formed on the surface of the incoming mixture of compacting.
49. compacting equipments for compacting coal according to claim 48, it is characterized in that, compacting equipment comprises the hydraulic efficiency installation for the formation of compact.
50. compacting equipments for compacting coal according to claim 48, it is characterized in that, the compacting equipment for the formation of compact is formed by vibration device.
51. coking furnace groups according to claim arbitrary in claim 37-50, it is characterized in that, it is equipped with the compacting equipment as described in claim arbitrary in claim 48-50.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012004667A DE102012004667A1 (en) | 2012-03-12 | 2012-03-12 | Process and apparatus for producing metallurgical coke from petroleum coals produced in petroleum refineries by coking in non-recovery or heat-recovery coke ovens |
| DE102012004667.7 | 2012-03-12 | ||
| PCT/EP2013/000694 WO2013143653A1 (en) | 2012-03-12 | 2013-03-08 | Process and apparatus for producing metallurgical coke from petroleum coke obtained in mineral oil refineries by coking in "non-recovery" or "heat-recovery" coking ovens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104334689A true CN104334689A (en) | 2015-02-04 |
Family
ID=48047961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380024822.7A Pending CN104334689A (en) | 2012-03-12 | 2013-03-08 | Process and apparatus for producing metallurgical coke from petroleum coke obtained in mineral oil refineries by coking in ''non-recovery'' or ''heat-recovery'' coking ovens |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20150041304A1 (en) |
| CN (1) | CN104334689A (en) |
| AR (1) | AR090314A1 (en) |
| DE (1) | DE102012004667A1 (en) |
| RU (1) | RU2616473C9 (en) |
| TW (1) | TW201406945A (en) |
| WO (1) | WO2013143653A1 (en) |
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| US9359554B2 (en) | 2012-08-17 | 2016-06-07 | Suncoke Technology And Development Llc | Automatic draft control system for coke plants |
| US10883051B2 (en) | 2012-12-28 | 2021-01-05 | Suncoke Technology And Development Llc | Methods and systems for improved coke quenching |
| CA2896478C (en) | 2012-12-28 | 2016-06-07 | Suncoke Technology And Development Llc. | Vent stack lids and associated systems and methods |
| CN104902984B (en) | 2012-12-28 | 2019-05-31 | 太阳焦炭科技和发展有限责任公司 | System and method for removing the mercury in emission |
| US9273250B2 (en) | 2013-03-15 | 2016-03-01 | Suncoke Technology And Development Llc. | Methods and systems for improved quench tower design |
| DE102013113660A1 (en) * | 2013-12-06 | 2015-06-11 | Thyssenkrupp Ag | Process and coke recovery plant for the treatment of sulfur-containing process residues from petroleum processing; Petroleum coke formed from sulfur-containing process residues |
| EA023461B1 (en) * | 2014-03-31 | 2016-06-30 | Открытое Акционерное Общество "Губахинский Кокс" | Method for production of metallurgical coke |
| CN104140831B (en) * | 2014-08-08 | 2016-04-20 | 赵昱 | A kind of method of low-disintegration coal destructive distillation upgrading |
| CA2961207C (en) | 2014-09-15 | 2023-04-18 | Suncoke Technology And Development Llc | Coke ovens having monolith component construction |
| KR102531894B1 (en) | 2015-01-02 | 2023-05-11 | 선코크 테크놀러지 앤드 디벨로프먼트 엘엘씨 | Integrated coke plant automation and optimization using advanced control and optimization technology |
| US10335845B2 (en) * | 2016-04-20 | 2019-07-02 | Ford Global Technologies, Llc | Hot-stamping furnace and method of hot stamping |
| BR112019024618B1 (en) | 2017-05-23 | 2022-05-03 | Suncoke Technology And Development Llc | System and method for repairing a coke oven |
| US11021655B2 (en) | 2018-12-28 | 2021-06-01 | Suncoke Technology And Development Llc | Decarbonization of coke ovens and associated systems and methods |
| CA3124590C (en) | 2018-12-28 | 2023-08-22 | Suncoke Technology And Development Llc | Systems and methods for treating a surface of a coke plant |
| WO2020140095A1 (en) | 2018-12-28 | 2020-07-02 | Suncoke Technology And Development Llc | Spring-loaded heat recovery oven system and method |
| CA3125589A1 (en) | 2018-12-31 | 2020-07-09 | Suncoke Technology And Development Llc | Methods and systems for providing corrosion resistant surfaces in contaminant treatment systems |
| CN111591986B (en) * | 2020-04-10 | 2022-03-11 | 山东大学 | Plant VOCs treatment method and system based on petrochemical enterprise byproduct petroleum coke upgrading utilization |
| KR20230004855A (en) * | 2020-05-03 | 2023-01-06 | 선코크 테크놀러지 앤드 디벨로프먼트 엘엘씨 | high quality coke products |
| RU2745787C1 (en) * | 2020-06-15 | 2021-03-31 | Публичное акционерное общество "Северсталь" (ПАО "Северсталь") | Method for producing coke for blast production |
| US11851724B2 (en) | 2021-11-04 | 2023-12-26 | Suncoke Technology And Development Llc. | Foundry coke products, and associated systems, devices, and methods |
| US11946108B2 (en) | 2021-11-04 | 2024-04-02 | Suncoke Technology And Development Llc | Foundry coke products and associated processing methods via cupolas |
| CN114989847A (en) * | 2022-05-23 | 2022-09-02 | 连云港临海新材料有限公司 | Petroleum coke calcination comprehensive utilization process |
| US20240150659A1 (en) | 2022-11-04 | 2024-05-09 | Suncoke Technology And Development Llc | Coal blends, foundry coke products, and associated systems, devices, and methods |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW201406945A (en) | 2014-02-16 |
| RU2616473C9 (en) | 2017-08-08 |
| US20150041304A1 (en) | 2015-02-12 |
| RU2014138617A (en) | 2016-04-27 |
| DE102012004667A1 (en) | 2013-09-12 |
| AR090314A1 (en) | 2014-11-05 |
| RU2616473C2 (en) | 2017-04-17 |
| WO2013143653A1 (en) | 2013-10-03 |
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