CN115160830A - Production method of fine grinding carbon black with low content of polycyclic aromatic hydrocarbon - Google Patents
Production method of fine grinding carbon black with low content of polycyclic aromatic hydrocarbon Download PDFInfo
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- CN115160830A CN115160830A CN202210935063.0A CN202210935063A CN115160830A CN 115160830 A CN115160830 A CN 115160830A CN 202210935063 A CN202210935063 A CN 202210935063A CN 115160830 A CN115160830 A CN 115160830A
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- Prior art keywords
- carbon black
- polycyclic aromatic
- aromatic hydrocarbon
- carbon
- temperature
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- 239000006229 carbon black Substances 0.000 title claims abstract description 69
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 241000872198 Serjania polyphylla Species 0.000 title claims abstract description 9
- 238000000227 grinding Methods 0.000 title abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 14
- 238000002485 combustion reaction Methods 0.000 claims abstract description 14
- 239000000654 additive Substances 0.000 claims abstract description 11
- 238000010791 quenching Methods 0.000 claims abstract description 11
- 239000000779 smoke Substances 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 10
- 230000000996 additive effect Effects 0.000 claims abstract description 9
- 230000000171 quenching effect Effects 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000295 fuel oil Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000008187 granular material Substances 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 6
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 238000007670 refining Methods 0.000 claims abstract description 4
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 238000004806 packaging method and process Methods 0.000 claims abstract description 3
- 239000002245 particle Substances 0.000 claims description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical group [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 239000004071 soot Substances 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 14
- 230000007613 environmental effect Effects 0.000 description 5
- 239000000567 combustion gas Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- 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
- C09C1/54—Acetylene black; thermal black ; Preparation thereof
-
- C—CHEMISTRY; METALLURGY
- 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
- C09C1/56—Treatment of carbon black ; Purification
- C09C1/58—Agglomerating, pelleting, or the like by wet methods
Abstract
The invention relates to the technical field of carbon black production, in particular to a production method of fine grinding carbon black with low content of polycyclic aromatic hydrocarbon. The method comprises the following steps: the method comprises the following steps: adding fuel oil, high-temperature preheated air and an additive into a combustion chamber for combustion to generate high-temperature hot gas with the temperature of more than 1900 ℃, enabling the hot gas to pass through a throat at a high speed and enter a reaction chamber for reaction, and pyrolyzing the fuel oil and the additive to generate powdered carbon black: the method comprises the following steps: carrying out quenching and cooling on the powdered carbon black in a mode of spraying quenching cold water, and converting carbon black smoke into carbon black powder smoke; step two: introducing carbon black soot into a main bag filter, and performing blowing separation to settle the soot; step three: processing and treating the powdered carbon by an iron remover, conveying the powdered carbon into a collecting system by a fan, and granulating the collected powdered carbon into a granulating system; step four: and drying and refining the carbon black granules granulated by the granulating system, and then packaging and storing. The productivity of the carbon black is improved, the content of polycyclic aromatic hydrocarbon is effectively reduced, and the pollution to the environment is reduced.
Description
Technical Field
The invention relates to the technical field of carbon black production, in particular to a production method of refined carbon black with low polycyclic aromatic hydrocarbon content.
Background
After a series of regulations about 'environmental protection laws' are successively set out in 2015, the carbon black industry faces the problem of environmental dilemma. The national association of rubber industry made and proposed "the admission technical specification of carbon black industry" in 2016, which perfected the rules and requirements in the aspects of safety rope and environmental protection in carbon black industry. In the next half year of 2016, the environmental protection department develops great investigation activities on the environmental pollution of China, and most carbon black enterprises do not reach the environmental protection standard and face the shutdown situation. According to related researches, the carbon black enterprises cause environmental pollution, so that the annual operating rate of the carbon black industry is low, and particularly, the capacity of enterprises in the north of Hei, shandong and the like is only kept about 50%. Carbon black products are often in a state of shortage, and enterprise inventory is also insufficient. Therefore, the environment-friendly carbon black which can reduce the content of the polycyclic aromatic hydrocarbon in the carbon black and produce low-content polycyclic aromatic hydrocarbon is lacking in the market. Thereby reducing the environmental pollution problem and ensuring the productivity.
Disclosure of Invention
Technical problem to be solved
In order to solve the problems in the prior art, the invention provides a production method of finely ground carbon black with low content of polycyclic aromatic hydrocarbon, which improves the productivity of the carbon black, effectively reduces the content of the polycyclic aromatic hydrocarbon and reduces the pollution to the environment.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that: the method comprises the following steps: the method comprises the following steps: adding fuel oil, high-temperature preheated air and an additive into a combustion chamber for combustion to generate high-temperature hot gas above 1900 ℃, enabling the hot gas to pass through a throat at a high speed and enter a reaction chamber for reaction, and pyrolyzing the fuel oil and the additive to generate powdery carbon black:
the method comprises the following steps: carrying out quenching and cooling on the powdered carbon black in a mode of spraying quenching cold water, and converting carbon black smoke into carbon black powder smoke;
step two: introducing carbon black soot into a main bag filter, and performing blowing separation to settle the soot;
step three: processing and treating the powdered carbon by an iron remover, conveying the powdered carbon into a collecting system by a fan, and granulating the collected powdered carbon into a granulating system;
step four: and drying and refining the carbon black granules granulated by the granulating system, and then packaging and storing.
Preferably, in the fourth step, the tail gas generated in the production of carbon black and hot air are mixed and combusted, and sufficient hot air is added into the combusted high-temperature gas to dry the carbon black particles, so that the polycyclic aromatic hydrocarbon is oxidized at high temperature.
Preferably, the additive is sodium carbonate.
Preferably, the quench water is added in a spray in step one.
(III) advantageous effects
The invention provides a production method of refined carbon black with low polycyclic aromatic hydrocarbon content. The method has the following beneficial effects:
(1) The carbon black produced and prepared by the method has high purity, and the content of low-content polycyclic aromatic hydrocarbon is effectively reduced.
(2) The produced tail gas of carbon black production can be subjected to secondary combustion, the heat produced by the secondary combustion is used as the drying heat of the carbon black particles, the gas is uniformly discharged, the acquisition cost of the drying heat of the carbon black particles is reduced, and the drying of the carbon black particles and the uniform discharge of the tail gas are realized.
Drawings
FIG. 1 is a production flow chart of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
Example 1:
as shown in fig. 1, the invention provides a technical solution: a production method of fine grinding carbon black with low polycyclic aromatic hydrocarbon content is characterized in that fuel oil, high-temperature preheated air and additives are added into a combustion chamber for combustion, high-temperature hot gas above 1900 ℃ is generated to provide hot combustion gas flow, the combustion gas flow has enough energy, liquid hydrocarbon raw materials for generating the carbon black can be converted into the carbon black, the liquid hydrocarbon raw materials reach the maximum flow rate in the combustion gas flow in a manner of a large amount of solid particle flow, the liquid hydrocarbon raw materials are sprayed into the combustion gas flow, the required penetration degree is reached under enough pressure, so that the raw materials are properly sheared and mixed, the high-temperature hot gas passes through a throat (front section of the reaction chamber) at high speed and enters the reaction chamber for reaction, and the fuel oil and the additives are cracked to generate powdery carbon black under the high-temperature condition: the powdery carbon black is subjected to quenching and cooling by a method of spraying quenching cold water, and carbon black smoke is converted into carbon black powder smoke; introducing carbon black soot into a main bag filter, and performing blowing separation to settle the soot; processing and treating the settled powdered carbon by an iron remover, conveying the powdered carbon into a collection system by a fan, and granulating the collected powdered carbon into a granulation system; the carbon black particles are then dried and refined, and then packaged and stored.
The production and manufacturing process of the carbon black particles is standardized, and compared with the parameters in the prior art, the production efficiency of the carbon black produced by adopting the process is improved by 18.35 percent.
Example 2:
as a specific embodiment of the present invention, in the process of drying carbon black particles, tail gas generated in the production of carbon black is mixed with hot air for combustion, the carbon black particles are dried by adding sufficient hot air into the high-temperature gas after combustion, the high-temperature gas realizes the drying of the carbon black particles, the sufficient hot air oxidizes polycyclic aromatic hydrocarbons at high temperature, and the oxidation equation of the polycyclic aromatic hydrocarbons at high temperature is as follows: cnHm + O → CO + HO. The unified treatment of tail gas is realized, provides the heat source for the drying of carbon black granule simultaneously, has reduced the obtaining cost of the dry heat of carbon black granule, also realizes the drying of carbon black granule simultaneously and discharges in unison the tail gas.
As a specific embodiment of the present invention, the additive is sodium carbonate.
In one embodiment of the present invention, the quench water is added by spraying in the first step. The temperature drop rate is ensured, and the conversion rate of converting the carbon black smoke into the carbon black powder smoke is further improved.
Compared with the parameters of the embodiment 1, the embodiment 2 of the invention has the advantages that the content of PAHs (polycyclic aromatic hydrocarbons) in the carbon black produced by the process of the invention is 6ppm, and the content of PAHs is reduced by 75 percent.
Claims (4)
1. A production method of refined carbon black with low polycyclic aromatic hydrocarbon content is characterized in that: the method comprises the following steps: the method comprises the following steps: adding fuel oil, high-temperature preheated air and an additive into a combustion chamber for combustion to generate high-temperature hot gas with the temperature of more than 1900 ℃, enabling the hot gas to pass through a throat at a high speed and enter a reaction chamber for reaction, and pyrolyzing the fuel oil and the additive to generate powdered carbon black:
the method comprises the following steps: carrying out quenching and cooling on the powdered carbon black in a mode of spraying quenching cold water, and converting carbon black smoke into carbon black powder smoke;
step two: introducing carbon black powder smoke into a main bag filter, and performing blowing separation to settle the carbon powder;
step three: processing and treating the powdered carbon by an iron remover, conveying the powdered carbon into a collecting system by a fan, and granulating the collected powdered carbon into a granulating system;
step four: and drying and refining the carbon black granules granulated by the granulating system, and then packaging and storing.
2. The process of claim 1 for the production of low polyaromatic content carbon refiner's black, wherein: in the fourth step, tail gas generated in carbon black production is mixed with hot air for combustion, and sufficient hot air is added into the high-temperature gas after combustion to dry carbon black particles, so that polycyclic aromatic hydrocarbon is oxidized at high temperature.
3. The process of claim 1 for the production of low polyaromatic content carbon refiner's black, wherein: the additive is sodium carbonate.
4. The process according to claim 1, wherein the refining carbon black with low content of polycyclic aromatic hydrocarbon is prepared by the following steps: and adding quenching water in a spraying manner in the first step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210935063.0A CN115160830A (en) | 2022-08-05 | 2022-08-05 | Production method of fine grinding carbon black with low content of polycyclic aromatic hydrocarbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210935063.0A CN115160830A (en) | 2022-08-05 | 2022-08-05 | Production method of fine grinding carbon black with low content of polycyclic aromatic hydrocarbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115160830A true CN115160830A (en) | 2022-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210935063.0A Withdrawn CN115160830A (en) | 2022-08-05 | 2022-08-05 | Production method of fine grinding carbon black with low content of polycyclic aromatic hydrocarbon |
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| Country | Link |
|---|---|
| CN (1) | CN115160830A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358043A (en) * | 2008-07-29 | 2009-02-04 | 陈智贤 | Carbon black products and preparation technique thereof |
| CN102618095A (en) * | 2012-03-07 | 2012-08-01 | 无锡双诚炭黑有限公司 | Production method of environmentally-friendly carbon black |
| CN104672954A (en) * | 2015-02-10 | 2015-06-03 | 安徽黑钰颜料新材料有限公司 | Production method of furnace carbon black with low polyaromatic hydrocarbon content and pigment carbon black product thereof |
| CN106947299A (en) * | 2017-05-03 | 2017-07-14 | 四川博蓝科新材料有限公司 | A kind of impurity content low colour carbon black production system and its production technology |
| CN107304308A (en) * | 2016-04-19 | 2017-10-31 | 天津市朗瑞化工炭黑工贸有限公司 | A kind of production method of low content polycyclic aromatic hydrocarbon carbon black |
| CN111117300A (en) * | 2020-01-19 | 2020-05-08 | 山西三强新能源科技有限公司 | Production process of pigment carbon black for spraying film |
| CN113637339A (en) * | 2021-07-06 | 2021-11-12 | 万达集团股份有限公司 | Production method of carbon black for high-wear-resistance low-rolling-resistance green tire |
| CN115491053A (en) * | 2022-10-12 | 2022-12-20 | 苏州宝化炭黑有限公司 | Method for producing carbon black of low polycyclic aromatic hydrocarbon |
-
2022
- 2022-08-05 CN CN202210935063.0A patent/CN115160830A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358043A (en) * | 2008-07-29 | 2009-02-04 | 陈智贤 | Carbon black products and preparation technique thereof |
| CN102618095A (en) * | 2012-03-07 | 2012-08-01 | 无锡双诚炭黑有限公司 | Production method of environmentally-friendly carbon black |
| CN104672954A (en) * | 2015-02-10 | 2015-06-03 | 安徽黑钰颜料新材料有限公司 | Production method of furnace carbon black with low polyaromatic hydrocarbon content and pigment carbon black product thereof |
| CN107304308A (en) * | 2016-04-19 | 2017-10-31 | 天津市朗瑞化工炭黑工贸有限公司 | A kind of production method of low content polycyclic aromatic hydrocarbon carbon black |
| CN106947299A (en) * | 2017-05-03 | 2017-07-14 | 四川博蓝科新材料有限公司 | A kind of impurity content low colour carbon black production system and its production technology |
| CN111117300A (en) * | 2020-01-19 | 2020-05-08 | 山西三强新能源科技有限公司 | Production process of pigment carbon black for spraying film |
| CN113637339A (en) * | 2021-07-06 | 2021-11-12 | 万达集团股份有限公司 | Production method of carbon black for high-wear-resistance low-rolling-resistance green tire |
| CN115491053A (en) * | 2022-10-12 | 2022-12-20 | 苏州宝化炭黑有限公司 | Method for producing carbon black of low polycyclic aromatic hydrocarbon |
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Application publication date: 20221011 |
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