CN111303668A - Low-energy-consumption high-pigment carbon black production method and production equipment thereof - Google Patents
Low-energy-consumption high-pigment carbon black production method and production equipment thereof Download PDFInfo
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- CN111303668A CN111303668A CN202010135801.4A CN202010135801A CN111303668A CN 111303668 A CN111303668 A CN 111303668A CN 202010135801 A CN202010135801 A CN 202010135801A CN 111303668 A CN111303668 A CN 111303668A
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/50—Furnace black ; Preparation thereof
Abstract
The invention relates to a low-energy-consumption high-pigment carbon black production method and production equipment thereof, which can spray an active catalyst in a quenching stage in the existing carbon black production process, adjust the flow of the active catalyst according to the characteristics of a product, realize the processing of the high-pigment carbon black, do not need to adopt modes of oxidation modification and the like, carry out secondary processing on finished carbon black to produce the high-pigment carbon black, can meet the use requirements of customers, save the operation procedures of carbon black production, reduce the energy consumption, avoid the resource waste caused by the secondary processing, simultaneously ensure that the existing carbon black production equipment can be utilized to the maximum extent in the high-pigment carbon black production process, effectively reduce the investment cost of enterprises, have the technical scheme provided by the embodiment of the application, have low operation cost, can realize the preparation of high-quality carbon black, and have simple structure, easy operation and industrial production.
Description
Technical Field
The application belongs to the industrial field of pigment carbon black, and more particularly relates to a low-energy-consumption high-pigment carbon black production method and production equipment thereof.
Background
The pigment carbon black as a special carbon black is an important black pigment for coloring black printing ink, paint and plastics, has the characteristics of small particle size, high blackness and the like, is easy to disperse in materials such as ink, paint, plastics and the like, and is a high-performance chemical raw material with good blackness, strong tinting strength and stable hue.
At present, most of high-grade pigment carbon black produced in China is obtained by oxidation modification or other subsequent processing methods, and oxidation treatment of the carbon black needs to perform oxidation treatment on the surface of the produced carbon black in a set of special oxidation treatment device by adding a strong oxidant, so that the content of acidic oxygen-containing groups on the surface of the carbon black is increased to enhance the dispersion performance of the carbon black in ink, paint and water-based solvents.
For example, patent No. CN102585565B discloses a method and an apparatus for producing carbon black pigment, the apparatus comprises a mixing device and a driving device thereof, the mixing device is provided with a mixer material inlet, a mixer waste gas outlet, a mixer material outlet and a mixer ozone inlet, the mixer material outlet is communicated with an exhaust gas treatment device through a pipeline, and the mixer ozone inlet is communicated with an ozone generator through a pipeline. The method comprises the following steps: the carbon black raw material is filled into a mixing device, the temperature in the mixing device is controlled to be 40-50 ℃, and simultaneously ozone is input into the mixing device under the condition of continuous stirring, so that the carbon black is fully oxidized to form pigment carbon black. This is typically done by oxidative modification to produce pigment carbon blacks.
The applicant finds in the course of implementing the present application that the above-mentioned prior art treatment solutions have at least the following problems:
firstly, the introduction of substances with strong oxidizing property has high requirements on equipment, and has the defects of unstable product quality, increased production cost due to later oxidation treatment, unfavorable industrial production and the like.
Furthermore, the produced carbon black product is difficult to avoid absorbing moisture in air in the oxidation modification process, so that the heating decrement (mainly moisture) index exceeds the standard, and in addition, the oxidation treatment process can also cause great damage to the particle structure of the granulated carbon black, so that the storage, transportation and application of the product can be adversely affected.
Therefore, how to put forward a production mode for replacing the traditional oxidation modification in the production process of producing the pigment carbon black, the product stability is improved, the device construction investment is reduced, the production cost is reduced, and the problem to be solved urgently in the carbon black industry is formed.
Disclosure of Invention
The application aims to provide a low-energy-consumption high-pigment carbon black production method and production equipment thereof, and adopts an oil furnace carbon black production process, so that the defects of unstable quality, high production cost and the like of pigment carbon black in the prior art are overcome, and the high-pigment carbon black production device provided by the application does not need to greatly adjust a carbon black reaction furnace in the existing enterprise, so that the equipment investment is reduced, the energy consumption increase caused by secondary processing is also avoided, and the production cost of the enterprise is greatly reduced.
In order to achieve the above technical objective, an embodiment of the present application provides a low-energy-consumption high-pigment carbon black production apparatus, including: in horizontal position, air rectifier 1, combustion chamber 2, throat 3, reaction chamber 4 and quench zone 5, and air heater 7 that connect in order still include:
the vertical quenching section 6 is vertically connected to the tail end of the quenching section 5 which is positioned at the horizontal position, and the outlet of the vertical quenching section 6 is connected with the air preheater 7 through a flue gas conveying pipe 8;
wherein, a plurality of spray guns are arranged in the vertical quenching section 6 and are used for spraying active catalyst and/or quenching water into the furnace.
Preferably, the air rectifier 1, the combustion chamber 2, the throat 3, the reaction chamber 4 and the quenching section 5 which are in horizontal positions are sequentially connected in a closed manner;
the vertical quenching section 6 is vertically connected with the tail end of the quenching section 5 in a horizontal position in a sealing mode;
and the two ends of the flue gas conveying pipe 8 are respectively connected with the outlet of the vertical quenching section 6 and the inlet of the air preheater 7 in a closed mode.
Preferably, the sealing manner specifically includes:
one or more of flange connection, threaded connection, welding and ferrule connection.
Preferably, the number of lances, and the mounting location of each lance within the vertical quench section 6, is adjusted according to the specifications of the high color carbon black product.
Preferably, the active catalyst is specifically:
the carbon black may be subjected to an oxidative treatment under conditions of elevated temperature and pressure to produce more surface functional groups and an agent, or combination of agents, that increases the nitrogen adsorption surface area.
On the other hand, the embodiment of the application also provides a low-energy-consumption high-pigment carbon black production method, which is applied to the low-energy-consumption high-pigment carbon black production equipment, and the method comprises the following steps:
the mixed gas flow composed of the raw oil and the high-temperature combustion gas flow reacts in the reaction chamber 4 to start the carbon black conversion;
spraying quenching water on the reacted mixed gas stream in the quenching section 5 and/or the vertical quenching section 6;
in the vertical quenching section 6, spraying an active catalyst to the gas flow sprayed with quenching water through a spray gun;
the air flow sprayed with the active catalyst is subjected to heat energy recovery through an air preheater 7 to generate high-pigment carbon black.
Preferably, the number of the spray guns and the installation position of each spray gun in the vertical quenching section 6 are adjusted according to the technical index requirement of the high-color carbon black product.
Preferably, in the vertical quenching section 6, the spraying of the active catalyst to the gas flow after the spraying of the quenching water by a spray gun specifically comprises:
and adjusting the spraying flow and/or pressure of the active catalyst according to the requirement of the technical index of the high-pigment carbon black product so as to realize that the technical index of the high-pigment carbon black product meets the requirement.
Preferably, the active catalyst is specifically:
the carbon black may be subjected to an oxidative treatment under conditions of elevated temperature and pressure to produce more surface functional groups and an agent, or combination of agents, that increases the nitrogen adsorption surface area.
Preferably, the heat energy recovery is carried out on the airflow sprayed with the active catalyst through an air preheater 7, which specifically comprises:
the gas flow sprayed with the active catalyst enters an air preheater 7 from the outlet of the vertical quenching section 6 through a flue gas conveying pipe 8 for heat energy recovery.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the beneficial technical effects that:
by applying the low-energy-consumption high-pigment carbon black production method and the production equipment thereof, the spraying of the active catalyst can be carried out in the quenching stage in the existing carbon black production process, the flow of the active catalyst is adjusted according to the characteristics of the product, the processing of the high-pigment carbon black is realized, the modes of oxidation modification and the like are not needed, the secondary processing is carried out on the finished product carbon black to produce the high-pigment carbon black, the use requirement of customers can be met, the operation procedure of carbon black production is saved, the energy consumption is reduced, the resource waste caused by the secondary reaction is avoided, meanwhile, the existing carbon black production equipment can be utilized to the maximum extent in the high-pigment carbon black production process, the investment cost of enterprises is effectively reduced, the technical scheme provided by the embodiment of the application is simple and easy to operate, the operation cost is low, and the preparation of the high-quality pigment carbon black can be realized, and the device has simple structure, is easy to operate and realizes industrial production.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a low energy consumption high pigment carbon black production facility according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of a method for producing high-pigment carbon black with low energy consumption according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As described in the background art, in the existing production scheme of high-pigment carbon black, oxidation modification of the finished carbon black product needs to be performed by using a strong oxide, oxidation treatment of carbon black needs to be performed on the produced carbon black product in a set of special oxidation treatment device, so that cost investment for construction of oxidation treatment equipment is increased, and later oxidation treatment further increases production cost, which is not beneficial to industrial production construction. Furthermore, the produced carbon black product is difficult to avoid absorbing moisture in air in the oxidation modification process, so that the heating decrement (mainly moisture) index exceeds the standard, and in addition, the oxidation treatment process can also cause great damage to the particle structure of the granulated carbon black, so that the storage, transportation and application of the product can be adversely affected.
In order to solve the above problems, the embodiment of the present application provides a low-energy consumption high-color carbon black production apparatus, which adopts an oil furnace carbon black production process, and sprays an active catalyst at a quenching stage in the existing carbon black production process, so that the processing of the high-color carbon black can be realized in the carbon black generation process, and the effects of reducing the cost and improving the quality of the high-color carbon black product are achieved.
FIG. 1 is a schematic diagram of a low energy consumption high pigment carbon black production facility according to the present invention. The production equipment specifically comprises:
the air rectifier 1, the combustion chamber 2, the throat 3, the reaction chamber 4 and the quenching section 5, which are connected in sequence in the horizontal position, and the air preheater 7 are all consistent with the existing carbon black production equipment, and are assembled in a mode of horizontal sequence in consideration of air flow.
In order to perform the above-mentioned active catalyst spraying operation, the above-mentioned production apparatus further comprises a vertical quenching section 6 vertically connected to the end of the quenching section 5 in a horizontal position, and the outlet of the vertical quenching section 6 is connected to an air preheater 7 through a flue gas duct 8.
Wherein, a plurality of spray guns are arranged in the vertical quenching section 6 and are used for spraying active catalyst and/or quenching water inwards.
In order to realize the air flow transmission in the carbon black production, the air rectifier 1, the combustion chamber 2, the throat 3, the reaction chamber 4 and the quenching section 5 which are in the horizontal positions are sequentially connected in a closed manner;
the vertical quenching section 6 is vertically connected with the tail end of the quenching section 5 in a horizontal position in a sealing mode;
and two ends of the flue gas conveying pipe 8 are respectively connected with an outlet of the vertical quenching section 6 and an air preheater 7 in a closed mode.
In a specific application scenario, the sealing manner is one or more of flange connection, threaded connection, welding and ferrule connection.
It should be further noted that, in a specific application, the above connection mode may be selected according to needs, and if necessary, a sealing gasket, a sealing glaze, or other auxiliary materials with a sealing function may be further adopted, so as to further enhance the sealing effect of the connection portion. In practical application, no matter which connection mode is adopted or whether the sealing auxiliary material is adopted or not, the protection range of the embodiment of the application cannot be affected on the premise of ensuring the sealing performance of the equipment.
In order to realize the spraying of the active catalyst, spray guns are arranged in the vertical quenching section 6, and the number of the spray guns and the installation positions of the spray guns in the vertical quenching section 6 can be adjusted according to the technical index requirements of high-color carbon black products. In a specific application scenario, the selection of the spraying position and the flow rate can be determined according to the transmission characteristics of the air flow and the product performance requirements, and the adjustment does not affect the protection scope of the application.
It should be further noted that, in order to enable the vertical quenching section 6 and the spray gun arranged therein to perform the same functional operation as the quenching section 5, i.e. to perform the quenching treatment on the high-temperature gas stream in which the reaction occurs, the spray gun of the vertical quenching section 6 may be arranged to have the spraying function of the quenching water and the active catalyst, and of course, the quenching water and the active catalyst may be independently sprayed or may be mixed to be sprayed. It is of course also possible to provide different spray functions for the different spray guns, i.e. a part of the spray guns being used for spraying the quench water and another part of the spray guns being used for spraying the active catalyst.
Specifically, what setting method and what spraying method of the quenching water and the active catalyst are adopted can be set according to actual needs, and such changes do not affect the protection scope of the embodiment of the present application.
It should be noted that the specific structure of the quenching section 5 and the vertical quenching section 6 may be the same or different, and will not affect the protection scope.
To achieve the production of high color carbon black, the above-described active catalyst, specifically, a reagent or a combination of reagents that can oxidize carbon black under high temperature and high pressure conditions to generate more surface functional groups and increase the nitrogen adsorption surface area.
On the premise of achieving the corresponding technical effects, the specific components of the material do not affect the protection scope of the embodiment of the application.
On the other hand, the embodiment of the present application further provides a low-energy-consumption high-color carbon black production method, which is applied to the aforementioned low-energy-consumption high-color carbon black production equipment, as shown in fig. 2, and is a schematic flow chart of the method. Specifically, the method comprises the following steps:
in step S201, the mixed gas stream composed of the feedstock oil and the high-temperature combustion gas stream reacts in the reaction chamber 4, and the carbon black conversion is started.
In step S202, quenching water is sprayed to the reacted mixed gas stream in the quenching section 5 and/or the vertical quenching section 6.
In the vertical quenching section 6, an active catalyst is sprayed to the gas stream after the quenching water is sprayed through a spray gun in step S203.
The number of the spray guns and the installation positions of the spray guns in the vertical quenching section 6 are adjusted according to the requirements of the technical indexes of high-color carbon black products.
Furthermore, according to the technical index requirements of the high-pigment carbon black product, the spraying flow and/or pressure of the active catalyst are/is adjusted so as to meet the technical index requirements of the high-pigment carbon black product.
To achieve the production of high color carbon black, the above-described active catalyst, specifically, a reagent or a combination of reagents that can oxidize carbon black under high temperature and high pressure conditions to generate more surface functional groups and increase the nitrogen adsorption surface area. On the premise of achieving the corresponding technical effects, the specific components of the material do not affect the protection scope of the embodiment of the application.
And S204, after the air flow sprayed with the active catalyst is subjected to heat energy recovery through an air preheater 7, generating the high-pigment carbon black.
Specifically, the gas flow sprayed with the active catalyst enters an air preheater 7 from the outlet of the vertical quenching section 6 through a flue gas conveying pipe 8 for heat energy recovery.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the beneficial technical effects that:
by applying the low-energy-consumption high-pigment carbon black production method and the production equipment thereof, the spraying of the active catalyst can be carried out at the quenching stage in the existing carbon black production process, thereby realizing the processing of the high-pigment carbon black in the process of generating the carbon black without adopting modes such as oxidation modification and the like, the secondary processing is carried out on the finished product carbon black to produce the high-pigment carbon black, so the operation procedure is saved, the energy consumption is reduced, the technical scheme provided by the embodiment of the application is simple, convenient and easy to implement, low in operation cost, and capable of realizing preparation of high-quality pigment carbon black, and the device is simple in structure and easy to operate and implement industrial production.
In a specific application scenario, in order to describe the technical solution of the present application in more detail, the present application further provides specific examples as follows:
referring to the foregoing fig. 1, the apparatus proposed in the embodiment of the present application includes: the device comprises an air rectifier 1, a combustion chamber 2, a throat 3, a reaction chamber 4 and a quenching section 5, wherein the front part and the rear part of each part are connected by flanges, and a vertical quenching section 6 is further added at the tail part of the quenching section 5.
In this embodiment, the vertical quenching section 6 has the same structure as the quenching section 5, and includes a plurality of rows of lances, each row including a plurality of lances, and the positions of the lances in different rows may be the same or different.
The vertical quenching section 6 is connected with the quenching section 5 by flanges, and the vertical quenching section 6 is connected with the air preheater 7 by stainless steel pipes with flanges at two ends.
In the production process of the carbon black, active catalyst is injected in the vertical quenching section 6, and the injected active catalyst is used for carrying out oxidation treatment on the carbon black under the conditions of high temperature and high pressure to generate more surface functional groups and increase the nitrogen adsorption surface area, so that the activation energy and the specific surface area of the surface of the carbon black are increased. Thereby improving the specific surface area, the coloring strength, the blackness and the blue phase of the product.
Based on the device, the flow and the pressure of the injected active catalyst are adjusted according to the characteristics of the product and the requirements of customers, thereby improving the quality of the product,
by the treatment, the quenching position for stopping the carbon black reaction can be moved backwards (on the premise of the same quality requirement), the yield of the product is improved, and the production cost is reduced.
Further, the effect of the technical scheme provided by the application is further explained by comparing data in three production scenes
Comparison table of process and quality
Comparing the data of the above tables with the data of the scene 1 and the scene 2, it can be seen that under the condition that the air volume and temperature of the air entering the furnace, the flow rate, pressure and temperature of the raw oil entering the furnace, the flow rate of the coal entering the furnace, the position of the water gun and the oil absorption value and iodine absorption value of the carbon black are basically kept unchanged, the unit usage amount of the active catalyst is increased by improving the flow rate and pressure of the active catalyst, namely the flow rate of the active catalyst is from 0Nm3The/h is increased to 900Nm3After the pressure increased from 0MPa to 1.2MPa, the total surface area of the finally produced high-pigment carbon black increased from 187.7 to 206.3, which increased by 18.6%, while the blackness of the high-pigment carbon black increased by 8 points.
Therefore, the total surface area and the blackness of the finally obtained high-pigment carbon black product are obviously improved by spraying the active catalyst by adopting the technical scheme provided by the embodiment of the application compared with the condition of not spraying the active catalyst.
Comparing the scenes 2 and 3, it can be seen that under the condition that the air volume and temperature of the air entering the furnace, the flow rate, pressure and temperature of the raw oil entering the furnace, the flow rate of the gas entering the furnace and the oil absorption value and iodine absorption value of the carbon black are basically kept unchanged, the unit usage amount of the active catalyst is increased by increasing the flow rate of the active catalyst, namely the flow rate of the active catalyst is increased from 900Nm3The/h is increased to 1500Nm3The pressure is not changed at 1.2Mpa, and the quenching position for stopping the carbon black reaction is moved backwards by moving the spray gun backwards, namely after the water gun position is moved from the 3 rd row to the 6 th row, the total surface area of the high-color carbon black is increased from 206.3 to 209.4 by 3.1 percent, the blackness of the high-color carbon black is increased by 2 percent, and meanwhile, the tinting strength of the high-color carbon black is increased by 5 percent.
Therefore, the total surface area and the blackness of the finally obtained high-pigment carbon black product are obviously improved after the flow of the sprayed active catalyst is improved and the quenching position for stopping the carbon black reaction is moved backwards by adopting the technical scheme provided by the embodiment of the application.
In conclusion, after the active catalyst and the proper flow rate and pressure are injected into the vertical quenching section, the quality of the finally obtained high-pigment carbon black product is improved, and the operation process of carrying out secondary processing on the finished carbon black product to carry out oxidation modification is reduced.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the beneficial technical effects that:
by applying the low-energy-consumption high-pigment carbon black production method and the production equipment thereof, the spraying of the active catalyst can be carried out at the quenching stage in the existing carbon black production process, thereby realizing the processing of the high-pigment carbon black in the process of generating the carbon black without adopting modes such as oxidation modification and the like, the secondary processing is carried out on the finished carbon black product to produce the high-pigment carbon black, so the operation procedure is saved, the energy consumption is reduced, the technical scheme provided by the embodiment of the application is simple, convenient and easy to implement, low in operation cost, capable of realizing preparation of high-quality pigment carbon black, simple in structure and easy to operate and implement industrial production.
In the description of the embodiments of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Of course, those skilled in the art will appreciate that the drawings are merely schematic representations of one preferred implementation scenario and that the blocks or processes in the drawings are not necessarily required to practice embodiments of the present application.
Those skilled in the art will appreciate that the modules in the devices in the implementation scenario may be distributed in the devices in the implementation scenario according to the description of the implementation scenario, or may be located in one or more devices different from the present implementation scenario with corresponding changes. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A low energy consumption high pigment carbon black production facility includes: be in horizontal position, air rectifier (1), combustion chamber (2), throat (3), reacting chamber (4) and quench zone (5) that connect in order to and air heater (7), its characterized in that still includes:
the vertical quenching section (6) is vertically connected to the tail end of the quenching section (5) in the horizontal position, and the outlet of the vertical quenching section (6) is connected with the air preheater (7) through a flue gas conveying pipe (8);
wherein, a plurality of spray guns are arranged in the vertical quenching section (6) and are used for spraying active catalyst and/or quenching water into the furnace.
2. The low-energy-consumption high-pigment carbon black production apparatus according to claim 1,
the air rectifier (1), the combustion chamber (2), the throat (3), the reaction chamber (4) and the quenching section (5) which are positioned at the horizontal positions are connected in sequence in a closed mode;
the vertical quenching section (6) is vertically connected to the tail end of the quenching section (5) in a horizontal position in a sealing mode;
the two ends of the flue gas conveying pipe (8) are respectively connected with the outlet of the vertical quenching section (6) and the inlet of the air preheater (7) in a closed mode.
3. The low energy consumption high pigment carbon black production apparatus according to claim 2, wherein said closed manner is specifically:
one or more of flange connection, threaded connection, welding and ferrule connection.
4. The low energy consumption, high color carbon black production facility of claim 1 wherein the number of lances, and the location of each lance within the vertical quench section (6), is adjusted according to the specifications of the high color carbon black product.
5. The low energy consumption, high pigment carbon black production plant according to claim 1, characterized in that said active catalyst, in particular:
the carbon black may be subjected to an oxidative treatment under conditions of elevated temperature and pressure to produce more surface functional groups and an agent, or combination of agents, that increases the nitrogen adsorption surface area.
6. A low-energy-consumption high-pigment carbon black production method, which is applied to the low-energy-consumption high-pigment carbon black production apparatus of claims 1 to 4, comprising the steps of:
the mixed gas flow composed of the raw oil and the high-temperature combustion gas flow reacts in the reaction chamber (4) to start the carbon black conversion;
spraying quenching water on the reacted mixed gas stream in the quenching section (5) and/or the vertical quenching section (6);
in the vertical quenching section (6), spraying active catalyst to the gas flow sprayed with quenching water through a spray gun;
the airflow sprayed with the active catalyst is subjected to heat energy recovery through an air preheater (7) to generate high-pigment carbon black.
7. The low energy consumption, high pigment carbon black production process according to claim 6,
the number of the spray guns and the installation positions of the spray guns in the vertical quenching section (6) are adjusted according to the requirements of the technical indexes of high-color carbon black products.
8. The method for producing carbon black with low energy consumption and high color of claim 7, wherein the spraying of the active catalyst to the gas stream after the spraying of the quenching water in the vertical quenching section (6) through a spray gun comprises:
and adjusting the spraying flow and/or pressure of the active catalyst according to the requirement of the technical index of the high-pigment carbon black product so as to realize that the technical index of the high-pigment carbon black product meets the requirement.
9. The process for the production of high-pigment carbon black with low energy consumption according to any one of claims 6 to 8, characterized in that the active catalyst is in particular:
the carbon black may be subjected to an oxidative treatment under conditions of elevated temperature and pressure to produce more surface functional groups and an agent, or combination of agents, that increases the nitrogen adsorption surface area.
10. The method for producing carbon black with low energy consumption and high pigment content according to claim 6, wherein the gas stream sprayed with the active catalyst is subjected to heat energy recovery by an air preheater (7), and comprises the following specific steps:
and the gas flow sprayed with the active catalyst enters an air preheater (7) from an outlet of the vertical quenching section (6) through a flue gas conveying pipe (8) for heat energy recovery.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112358747A (en) * | 2020-11-09 | 2021-02-12 | 江西省永固新能源炭黑有限公司 | Low-energy-consumption high-pigment carbon black production method and production equipment thereof |
| CN113122027A (en) * | 2021-03-24 | 2021-07-16 | 茂名环星新材料股份有限公司 | Carbon black and preparation method and application thereof |
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