CN109453591B - Carbon black waste gas treatment process - Google Patents

Carbon black waste gas treatment process Download PDF

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Publication number
CN109453591B
CN109453591B CN201811101549.4A CN201811101549A CN109453591B CN 109453591 B CN109453591 B CN 109453591B CN 201811101549 A CN201811101549 A CN 201811101549A CN 109453591 B CN109453591 B CN 109453591B
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carbon black
conveying
gas
tail gas
waste gas
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CN109453591A (en
Inventor
孟奎
张书坡
李孝军
刘雅军
石磊峰
王延坤
李伟科
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Longxing Chemical Stock Co ltd
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Longxing Chemical Stock Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of devices for separating particles from gases or vapours
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/54Nitrogen compounds
    • B01D53/56Nitrogen oxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75Multi-step processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/76Gas phase processes, e.g. by using aerosols
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8621Removing nitrogen compounds
    • B01D53/8625Nitrogen oxides
    • B01D53/8631Processes characterised by a specific device
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases

Abstract

The invention discloses a carbon black waste gas treatment process, which comprises the following steps: s1, putting the mixture into a carbon black reaction furnace for reaction to obtain carbon black smoke; s2, conveying the obtained carbon black flue gas into an air preheater to exchange heat with cold air, and conveying the carbon black flue gas into a main bag filter to separate tail gas from carbon black after passing through a series of heat exchange devices; and S3, conveying one part of the carbon black tail gas separated by the main bag filter to a power generation boiler, and conveying the other part of the carbon black tail gas to a tail gas combustion furnace to provide heat for carbon black drying. The invention effectively treats different types of tail gas in the carbon black waste gas, and simultaneously thoroughly treats the tail gas with different flow directions, thereby greatly reducing the pollution of harmful gas to the surrounding environment, realizing energy conservation and consumption reduction of production and comprehensive treatment of the waste gas to reach the standard and meet the standard, promoting the transformation and upgrading of the carbon black production process and realizing good social and environmental benefits.

Description

Carbon black waste gas treatment process
Technical Field
The invention relates to the technical field of carbon black, in particular to a carbon black waste gas treatment process.
Background
Carbon black is an amorphous carbon, light, loose and extremely fine black powder, has a very large surface area, and is a product obtained by incomplete combustion or thermal decomposition of carbonaceous substances (coal, natural gas, heavy oil, fuel oil, etc.) under conditions of insufficient air. The specific gravity is 1.8-2.1. Gas black, which is made of natural gas, lamp black, which is made of oils, and acetylene black, which is made of acetylene. In addition, "channel black" and "furnace black" are also included. According to the properties of carbon black, there are "reinforcing carbon black", "conductive carbon black", "wear-resistant carbon black", etc. The carbon black oil can be used as black dye for manufacturing Chinese ink, printing ink, paint and the like, and also can be used as a reinforcing agent of rubber, and is a high boiling point fraction of coal tar. The main component is generally filtered anthracene oil, which has a very low sulfur content (equal to or less than 1%), can form carbon black with a high quality in the event of incomplete combustion, and can be used in the ink industry and the rubber industry. The method is mainly used for producing carbon black, the carbon black is used as a reinforcing agent of rubber, and carbon black tail gas is gas obtained by separating carbon black from carbon black flue gas. The tail gas contains a small amount of combustible gas components besides trace carbon black. The fuel is not allowed to be directly discharged into the atmosphere, and can be reused as secondary energy, such as boiler fuel or power generation. The carbon black waste gas treatment is characterized in that: the waste gas has various types, including waste gas discharged by a carbon black tail gas power generation boiler, waste gas discharged by a carbon black tail gas drying furnace, waste gas collected by carbon black conveying and the like, and the components and the properties of the waste gases are different and need to be treated respectively; the second waste gas has more discharge points and difficult centralized treatment; the tail gas amount of the three-carbon black greatly fluctuates along with the change of the production conditions of the carbon black.
At present, when carbon black tail gas waste gas treatment is carried out, waste gases from different sources cannot be treated respectively, the discharged tail gas still causes serious pollution to the environment, and the carbon black tail gas and the waste gas in different flow directions cannot be thoroughly treated in the process of treating the carbon black tail gas and the waste gas.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a carbon black waste gas treatment process.
In order to achieve the purpose, the invention adopts the following technical scheme:
a carbon black waste gas treatment process comprises the following steps:
s1, putting the mixture into a carbon black reaction furnace for reaction to obtain carbon black smoke;
s2, conveying the obtained carbon black flue gas into an air preheater to exchange heat with cold air, and conveying the carbon black flue gas into a main bag filter to separate tail gas from carbon black after passing through a series of heat exchange devices;
s3, conveying one part of the carbon black tail gas separated by the main bag filter to a power generation boiler, and conveying the other part of the carbon black tail gas to a tail gas combustion furnace to provide heat for carbon black drying;
s4, combusting the carbon black tail gas conveyed into the power generation boiler, and simultaneously performing LNB low-nitrogen combustion and SCR catalytic reduction denitration treatment;
s5, conveying the denitrated waste gas into a desulfurization tower for desulfurization to generate a byproduct ammonium sulfate;
s6, carrying out wet electric dust removal treatment on the desulfurized waste gas, and then discharging the waste gas into the atmosphere;
s7, treating the carbon black tail gas conveyed into the tail gas combustion furnace by adopting an LNB low-nitrogen combustion method and an SNCR method, reducing nitrogen oxides in the waste gas, and then exchanging heat with a carbon black dryer;
s8, conveying the waste gas subjected to heat exchange by the dryer into a desulfurizing tower for desulfurization treatment;
s9, conveying the carbon black separated by the main bag filter into a collection bag filter by air for filtering;
s10, conveying the filtered carbon black into a granulator for granulation;
s11, conveying the granulated carbon black into a dryer for drying treatment;
s12, conveying the waste gas obtained by filtering the collection bag filter into a tail gas combustion furnace to replace part of combustion air, and performing LNB low-nitrogen combustion and SNCR non-catalytic reduction denitration treatment during combustion;
and S13, exchanging heat between the hot gas generated by the tail gas combustion furnace and the wet carbon black in a drier, and then conveying the obtained waste gas into a desulfurizing tower for desulfurization treatment.
Preferably, the reaction temperature of the carbon black reaction furnace is 1200-1800 ℃.
Preferably, an air conveying pipe is connected between the air preheater and the carbon black reaction furnace.
Preferably, the carbon black tail gas and the waste gas are both conveyed through a conveying pipeline and a fan.
Preferably, the conveying pipeline is made of stainless steel.
Preferably, the dryer is a rotary dryer.
Preferably, in S1, the mixture includes fuel, air and raw materials.
In the invention, when carbon black waste gas treatment is carried out, combustion raw materials are firstly put into a carbon black reaction furnace for reaction to obtain carbon black after the reaction, then the carbon black is conveyed into an air preheater for heating, the carbon black is conveyed into a main bag filter after the heating is finished, one part of carbon black tail gas in the main bag filter is conveyed into a power generation boiler, the other part of the tail gas is conveyed into a tail gas combustion furnace, the carbon black tail gas conveyed into the power generation boiler is denitrated, the obtained waste gas is conveyed into a desulfurization tower for desulfurization to generate a by-product ammonium sulfate, the desulfurized waste gas is subjected to wet electric dust removal treatment and finally discharged into the atmosphere, then the carbon black tail gas conveyed into the tail gas combustion furnace is dried by a rotary flash evaporation dryer, the treated waste gas is also conveyed into the desulfurization tower for desulfurization, the carbon black obtained by the main bag filter is conveyed into a collection bag filter for filtration, and conveying the filtered carbon black into a granulator for treatment, conveying the carbon black into a rotary flash evaporation dryer for drying treatment, conveying the waste gas obtained by filtering the waste gas by a collecting bag filter into a tail gas combustion furnace for treatment, drying the product obtained by treating the tail gas combustion furnace, and conveying the obtained waste gas into a desulfurization tower for desulfurization treatment.
Compared with the prior art, the invention has the beneficial effects that:
1. by carrying out denitration and desulfurization treatment on the carbon black tail gas and the waste gas, the problem that different types of tail gas cannot be respectively treated is solved, the function of thoroughly treating the tail gas is realized, and the surrounding environment is protected from being polluted;
2. through the matching among the dryer, the tail gas combustion furnace and the desulfurizing tower, the problem that tail gases with different flow directions cannot be treated is solved, the treatment efficiency of the tail gases and the waste gases is improved, and the discharge amount of harmful gases is greatly reduced;
to sum up, the process effectively treats different types of tail gas in the carbon black waste gas, and simultaneously thoroughly treats the tail gas in different flow directions, thereby greatly reducing the pollution of harmful gas to the surrounding environment, realizing energy conservation and consumption reduction of production and comprehensive treatment of waste gas to reach the standard and meet the standard and discharge, promoting the improvement and upgrading of the carbon black production process, and realizing good social and environmental benefits.
Detailed Description
The invention will be further illustrated with reference to specific embodiments.
A carbon black waste gas treatment process comprises the following steps:
s1, putting fuel, air and raw materials into a carbon black reaction furnace for reaction, wherein the reaction temperature of the carbon black reaction furnace is 1200-1800 ℃, and obtaining carbon black smoke after the reaction;
s2, conveying the obtained carbon black flue gas into an air preheater to exchange heat with cold air, and conveying the carbon black flue gas into a main bag filter to separate tail gas from carbon black after passing through a series of heat exchange devices;
s3, conveying one part of the carbon black tail gas separated by the main bag filter to a power generation boiler, and conveying the other part of the carbon black tail gas to a tail gas combustion furnace to provide heat for carbon black drying;
s4, combusting the carbon black tail gas conveyed into the power generation boiler, and simultaneously performing LNB low-nitrogen combustion and SCR catalytic reduction denitration treatment;
s5, conveying the denitrated waste gas into a desulfurization tower for desulfurization to generate a byproduct ammonium sulfate;
s6, carrying out wet electric dust removal treatment on the desulfurized waste gas, and then discharging the waste gas into the atmosphere;
s7, treating the carbon black tail gas conveyed into the tail gas combustion furnace by adopting an LNB low-nitrogen combustion method and an SNCR method, reducing nitrogen oxides in the waste gas, and then exchanging heat with a carbon black dryer;
s8, conveying the waste gas subjected to heat exchange by the dryer into a desulfurizing tower for desulfurization treatment;
s9, conveying the carbon black separated by the main bag filter into a collecting bag filter by air for filtering, aiming at the aspect of collecting the waste gas of the bag filter, because the waste gas contains a small amount of carbon black tail gas, the carbon black tail gas has lower utilization value, and the carbon black tail gas is introduced into a tail gas combustion furnace through a fan to replace part of air, so that the purpose of utilizing the heat value of the carbon black tail gas can be achieved, and the emission of pollutants is avoided;
s10, conveying the filtered carbon black into a granulator for granulation;
s11, conveying the granulated carbon black into a dryer for drying treatment;
s12, conveying the waste gas obtained by filtering the collection bag filter into a tail gas combustion furnace to replace part of combustion air, performing LNB low-nitrogen combustion and SNCR non-catalytic reduction denitration treatment during combustion, and controlling the NOx content of the waste gas of the drying furnace in a mode of combining LNG and SNCR in the tail gas combustion furnace of the rotary dryer;
and S13, exchanging heat between the hot gas generated by the tail gas combustion furnace and the wet carbon black in a drier, and then conveying the obtained waste gas into a desulfurizing tower for desulfurization treatment.
In the invention, the carbon black tail gas and the waste gas are both conveyed by a conveying pipeline and a fan, and the conveying pipeline is made of stainless steel.
In the invention, when carbon black waste gas treatment is carried out, combustion raw materials are firstly put into a carbon black reaction furnace for reaction to obtain carbon black after the reaction, then the carbon black is conveyed into an air preheater for heating, the carbon black is conveyed into a main bag filter after the heating is finished, one part of carbon black tail gas in the main bag filter is conveyed into a power generation boiler, the other part of the tail gas is conveyed into a tail gas combustion furnace, the carbon black tail gas conveyed into the power generation boiler is denitrated, the obtained waste gas is conveyed into a desulfurization tower for desulfurization to generate a by-product ammonium sulfate, the desulfurized waste gas is subjected to wet electric dust removal treatment and finally discharged into the atmosphere, then the carbon black tail gas conveyed into the tail gas combustion furnace is dried by a rotary flash evaporation dryer, the treated waste gas is also conveyed into the desulfurization tower for desulfurization, the carbon black obtained by the main bag filter is conveyed into a collection bag filter for filtration, and conveying the filtered carbon black into a granulator for treatment, conveying the carbon black into a rotary flash evaporation dryer for drying treatment, conveying the waste gas obtained by filtering the waste gas by a collecting bag filter into a tail gas combustion furnace for treatment, drying the product obtained by treating the tail gas combustion furnace, and conveying the obtained waste gas into a desulfurization tower for desulfurization treatment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (5)

1. A carbon black waste gas treatment process is characterized by comprising the following steps:
s1, putting the mixture into a carbon black reaction furnace for reaction to obtain carbon black smoke; the reaction temperature of the carbon black reaction furnace is 1200-1800 ℃;
s2, conveying the obtained carbon black flue gas into an air preheater to exchange heat with cold air, and conveying the carbon black flue gas into a main bag filter to separate tail gas from carbon black after passing through a series of heat exchange devices;
s3, conveying one part of the carbon black tail gas separated by the main bag filter to a power generation boiler, and conveying the other part of the carbon black tail gas to a tail gas combustion furnace to provide heat for carbon black drying;
s4, combusting the carbon black tail gas conveyed into the power generation boiler, and simultaneously carrying out LNB low-nitrogen combustion method and SCR catalytic reduction denitration treatment;
s5, conveying the denitrated waste gas into a desulfurization tower for desulfurization to generate a byproduct ammonium sulfate;
s6, carrying out wet electric dust removal treatment on the desulfurized waste gas, and then discharging the waste gas into the atmosphere;
s7, carrying out LNB low-nitrogen combustion method and SNCR non-catalytic reduction denitration treatment on the carbon black tail gas conveyed into the tail gas combustion furnace to reduce nitrogen oxides in the waste gas, and then carrying out heat exchange with a carbon black dryer; the dryer is a rotary dryer;
s8, conveying the waste gas subjected to heat exchange by the dryer into a desulfurizing tower for desulfurization treatment;
s9, conveying the carbon black separated by the main bag filter into a collection bag filter by air for filtering;
s10, conveying the filtered carbon black into a granulator for granulation;
s11, conveying the granulated carbon black into a dryer for drying treatment;
s12, conveying the waste gas obtained by filtering the collection bag filter into a tail gas combustion furnace to replace part of combustion air, and performing LNB low-nitrogen combustion method and SNCR non-catalytic reduction denitration treatment during combustion;
and S13, exchanging heat between the hot gas generated by the tail gas combustion furnace and the wet carbon black in a drier, and then conveying the obtained waste gas into a desulfurizing tower for desulfurization treatment.
2. The carbon black waste gas treatment process according to claim 1, wherein a wind pipe is connected between the air preheater and the carbon black reaction furnace.
3. The carbon black waste gas treatment process according to claim 1, wherein the carbon black tail gas and the waste gas are both conveyed by a conveying pipeline and a fan.
4. A carbon black exhaust gas treatment process according to claim 1, wherein the transfer pipe is made of stainless steel.
5. The carbon black off-gas treatment process as claimed in claim 1, wherein in S1, the mixture includes fuel, air and raw materials.
CN201811101549.4A 2018-09-20 2018-09-20 Carbon black waste gas treatment process Active CN109453591B (en)

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CN111117300B (en) * 2020-01-19 2021-06-18 山西三强新能源科技有限公司 Production process of pigment carbon black for spraying film
CN112679996A (en) * 2021-01-15 2021-04-20 无锡东恒新能源科技有限公司 Carbon black production method capable of recycling resources

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106110863A (en) * 2016-08-08 2016-11-16 中昊黑元化工研究设计院有限公司 A kind of boiler with tailed method of denitration
WO2017135811A1 (en) * 2016-02-05 2017-08-10 Black Bear Carbon B.V. Method for treatment of a hot pyrolysis gas
CN108295565A (en) * 2017-12-22 2018-07-20 萍乡市德润科技有限责任公司 The method and system of flue gas desulfurization and denitrification

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9108155B2 (en) * 2011-10-10 2015-08-18 Hyundai Motor Company Non-PGM catalyst for burning carbon soot, and filtration filter and exhaust gas post-processing apparatus using the same
CN105597501B (en) * 2016-01-04 2019-01-01 中橡集团炭黑工业研究设计院 A kind of method of exhuast gas desulfurization, denitration in carbon black process
CN106957541A (en) * 2017-03-24 2017-07-18 中昊黑元化工研究设计院有限公司 The carbon black energy-saving production method and device of a kind of outer pre-heating technique air of line
CN108434876A (en) * 2018-03-16 2018-08-24 茂名环星新材料股份有限公司 The flue gas open circuit carrying method of collection carbon black is flutterred in a kind of production of carbon black

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017135811A1 (en) * 2016-02-05 2017-08-10 Black Bear Carbon B.V. Method for treatment of a hot pyrolysis gas
CN106110863A (en) * 2016-08-08 2016-11-16 中昊黑元化工研究设计院有限公司 A kind of boiler with tailed method of denitration
CN108295565A (en) * 2017-12-22 2018-07-20 萍乡市德润科技有限责任公司 The method and system of flue gas desulfurization and denitrification

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