CN110694454A - Production process of environment-friendly flue gas denitration agent - Google Patents
Production process of environment-friendly flue gas denitration agent Download PDFInfo
- Publication number
- CN110694454A CN110694454A CN201911028695.3A CN201911028695A CN110694454A CN 110694454 A CN110694454 A CN 110694454A CN 201911028695 A CN201911028695 A CN 201911028695A CN 110694454 A CN110694454 A CN 110694454A
- Authority
- CN
- China
- Prior art keywords
- denitration agent
- flue gas
- production process
- environment
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a production process of an environment-friendly flue gas denitration agent, which is prepared from the following raw materials: 30% -50% of sodium carbonate, 10% -20% of sodium hydroxide, 10% -15% of potassium hydroxide, 5% -10% of activated carbon, 5% -20% of clay and 5% -10% of water.
Description
Technical Field
The invention relates to the technical field of flue gas treatment, in particular to a production process of an environment-friendly flue gas denitration agent.
Background
In current industrial production, too much NOx contained in flue gas generated by combustion pollutes the environment, so that it is necessary to perform denitration treatment before emission, and in general, adsorption treatment is performed by an alkaline denitration agent.
But current agent of taking off sale is mostly made the simple mixture of multiple alkaline powder, is unfavorable for preserving, and easy natural reaction is rotten, influences the efficiency of absorption denitration to also can not guarantee during the use and fully contact with the flue gas, cause the denitration thoroughly, the result of use is unsatisfactory.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a production process of an environment-friendly flue gas denitration agent.
In order to achieve the purpose, the invention adopts the following technical scheme:
a production process of an environment-friendly flue gas denitration agent comprises the following raw materials: 30-50% of sodium carbonate, 10-20% of sodium hydroxide, 10-15% of potassium hydroxide, 5-10% of activated carbon, 5-20% of clay and 5-10% of water.
Preferably, the denitration agent is denitration agent particles, and the production process comprises the following steps:
s1, weighing the raw materials according to the mass percentage for later use;
s2, respectively adding the weighed raw materials into a pulverizer to be pulverized, and sieving the pulverized raw materials through a sieve to be filtered to obtain powder raw materials;
s3, adding sodium carbonate, sodium hydroxide, potassium hydroxide and activated carbon into a stirrer, and uniformly stirring for 40 to 50 minutes at the speed of 20 to 30 revolutions per minute to obtain mixed powder;
s4, adding water into the clay, uniformly stirring, and adjusting the water content to be 20-30% to obtain pasty clay;
s5, adding the mixed powder into the pasty clay, and uniformly stirring for 30 to 40 minutes at the speed of 60 to 80 revolutions per minute to obtain a viscous material;
s6, putting the viscous material into a double-screw extruder, and extruding and granulating to obtain mixed particles;
s7, placing the mixed particles in a shade place, and airing at normal temperature to obtain the denitration agent particles.
Preferably, the size of the screen for passing through the step S2 is 120 to 130 meshes.
Preferably, the step of S4 is performed at a uniform stirring rate of 120 rpm to 130 rpm for 15 minutes to 20 minutes.
Preferably, the water content of the viscous material in the step S5 is 4-6%.
Preferably, the granulation temperature in the step S6 is normal temperature, and the granulation diameter is 4 mm to 7 mm.
Preferably, the step S7 further comprises storing in a plastic can in a sealed manner.
Preferably, the use method of the denitration agent particles comprises the following steps:
p1, taking out the sealed and stored denitration agent particles, and crushing the denitration agent particles in a crusher to obtain denitration agent powder;
p2, mixing the denitration agent powder and clear water according to a ratio of 1:10-15, and uniformly stirring for 10 to 15 minutes to form a mixed solution;
p3, standing the denitration agent solution for 30-40 minutes, extracting supernatant, and discarding bottom sediment to obtain the denitration agent solution;
p4, adding water to dilute the denitration agent solution to the concentration of 5-8% to obtain a diluted solution;
and P5, introducing the flue gas into the diluted solution, and carrying out chemical reaction dilution to obtain a nitrate and nitrite solution, thus finishing flue gas denitration.
Preferably, the step P5 further comprises continuously replenishing the solution of the agent for removing the pin.
According to the production process of the environment-friendly flue gas denitration agent, provided by the invention, multiple alkaline materials are crushed and mixed, and clay is added, so that the alkaline materials can be mixed, wrapped and granulated, the production and processing are convenient, the deterioration is reduced, the stable storage time is prolonged, and meanwhile, the alkaline materials are dissolved and diluted firstly during later use, so that the solution concentration can be adjusted, the flue gas adsorption effect and the denitration effect are ensured, the safety and stability of the production and processing can be greatly improved, the denitration efficiency is ensured, and the popularization and the use are facilitated.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A production process of an environment-friendly flue gas denitration agent comprises the following raw materials: 30-50% of sodium carbonate, 10-20% of sodium hydroxide, 10-15% of potassium hydroxide, 5-10% of activated carbon, 5-20% of clay and 5-10% of water.
Preferably, the denitration agent is denitration agent particles, and the production process comprises the following steps:
s1, weighing the raw materials according to the mass percentage for later use;
s2, respectively adding the weighed raw materials into a pulverizer to be pulverized, and sieving the pulverized raw materials through a sieve to be filtered to obtain powder raw materials;
s3, adding sodium carbonate, sodium hydroxide, potassium hydroxide and activated carbon into a stirrer, and uniformly stirring for 40 to 50 minutes at the speed of 20 to 30 revolutions per minute to obtain mixed powder;
s4, adding water into the clay, uniformly stirring, and adjusting the water content to be 20-30% to obtain pasty clay;
s5, adding the mixed powder into the pasty clay, and uniformly stirring for 30 to 40 minutes at the speed of 60 to 80 revolutions per minute to obtain a viscous material;
s6, putting the viscous material into a double-screw extruder, and extruding and granulating to obtain mixed particles;
s7, placing the mixed particles in a shade place, and airing at normal temperature to obtain the denitration agent particles.
Preferably, the size of the screen used in the step S2 is 120 to 130 meshes.
Preferably, the step of S4 is performed at a uniform stirring rate of 120 rpm to 130 rpm for 15 minutes to 20 minutes.
Preferably, the water content of the viscous material in the step S5 is 4-6%.
Preferably, in the step S6, the granulation temperature is normal temperature, and the granulation diameter is 4 mm to 7 mm.
Preferably, the S7 step further comprises hermetically storing the mixture in a plastic can.
Preferably, the use method of the denitration agent particles comprises the following steps:
p1, taking out the sealed and stored denitration agent particles, and crushing the denitration agent particles in a crusher to obtain denitration agent powder;
p2, mixing the denitration agent powder and clear water according to a ratio of 1:10-15, and uniformly stirring for 10 to 15 minutes to form a mixed solution;
p3, standing the denitration agent solution for 30-40 minutes, extracting supernatant, and discarding bottom sediment to obtain the denitration agent solution;
p4, adding water to dilute the denitration agent solution to the concentration of 5-8% to obtain a diluted solution;
and P5, introducing the flue gas into the diluted solution, and carrying out chemical reaction dilution to obtain a nitrate and nitrite solution, thus finishing flue gas denitration.
Preferably, the step P5 further comprises continuously replenishing the solution of the agent for removing the pin.
According to the production process of the environment-friendly flue gas denitration agent, provided by the invention, multiple alkaline materials are crushed and mixed, and clay is added, so that the alkaline materials can be mixed, wrapped and granulated, the production and processing are convenient, the deterioration is reduced, the stable storage time is prolonged, and meanwhile, the alkaline materials are dissolved and diluted firstly during later use, so that the solution concentration can be adjusted, the flue gas adsorption effect and the denitration effect are ensured, the safety and stability of the production and processing can be greatly improved, the denitration efficiency is ensured, and the popularization and the use are facilitated.
Example 1
A production process of an environment-friendly flue gas denitration agent comprises the following raw materials: 49% of sodium carbonate, 15% of sodium hydroxide, 12% of potassium hydroxide, 6% of activated carbon, 10% of clay and 8% of water.
Preferably, the denitration agent is denitration agent particles, and the production process comprises the following steps:
s1, weighing the raw materials according to the mass percentage for later use;
s2, respectively adding the weighed raw materials into a pulverizer to be pulverized, and sieving the pulverized raw materials through a sieve to be filtered to obtain powder raw materials;
s3, adding sodium carbonate, sodium hydroxide, potassium hydroxide and activated carbon into a stirrer, and uniformly stirring for 40 to 50 minutes at the speed of 20 to 30 revolutions per minute to obtain mixed powder;
s4, adding water into the clay, uniformly stirring, and adjusting the water content to be 20-30% to obtain pasty clay;
s5, adding the mixed powder into the pasty clay, and uniformly stirring for 30 to 40 minutes at the speed of 60 to 80 revolutions per minute to obtain a viscous material;
s6, putting the viscous material into a double-screw extruder, and extruding and granulating to obtain mixed particles;
s7, placing the mixed particles in a shade place, and airing at normal temperature to obtain the denitration agent particles.
Preferably, the size of the screen used in the step S2 is 120 to 130 meshes.
Preferably, the step of S4 is performed at a uniform stirring rate of 120 rpm to 130 rpm for 15 minutes to 20 minutes.
Preferably, the water content of the viscous material in the step S5 is 4-6%.
Preferably, in the step S6, the granulation temperature is normal temperature, and the granulation diameter is 4 mm to 7 mm.
Preferably, the S7 step further comprises hermetically storing the mixture in a plastic can.
Preferably, the use method of the denitration agent particles comprises the following steps:
p1, taking out the sealed and stored denitration agent particles, and crushing the denitration agent particles in a crusher to obtain denitration agent powder;
p2, mixing the denitration agent powder and clear water according to a ratio of 1:10-15, and uniformly stirring for 10 to 15 minutes to form a mixed solution;
p3, standing the denitration agent solution for 30-40 minutes, extracting supernatant, and discarding bottom sediment to obtain the denitration agent solution;
p4, adding water to dilute the denitration agent solution to the concentration of 5-8% to obtain a diluted solution;
and P5, introducing the flue gas into the diluted solution, and carrying out chemical reaction dilution to obtain a nitrate and nitrite solution, thus finishing flue gas denitration.
Preferably, the step P5 further comprises continuously replenishing the solution of the agent for removing the pin.
Example 2
A production process of an environment-friendly flue gas denitration agent comprises the following raw materials: 50% of sodium carbonate, 10% of sodium hydroxide, 10% of potassium hydroxide, 5% of activated carbon, 15% of clay and 10% of water.
Preferably, the denitration agent is denitration agent particles, and the production process comprises the following steps:
s1, weighing the raw materials according to the mass percentage for later use;
s2, respectively adding the weighed raw materials into a pulverizer to be pulverized, and sieving the pulverized raw materials through a sieve to be filtered to obtain powder raw materials;
s3, adding sodium carbonate, sodium hydroxide, potassium hydroxide and activated carbon into a stirrer, and uniformly stirring for 40 to 50 minutes at the speed of 20 to 30 revolutions per minute to obtain mixed powder;
s4, adding water into the clay, uniformly stirring, and adjusting the water content to be 20-30% to obtain pasty clay;
s5, adding the mixed powder into the pasty clay, and uniformly stirring for 30 to 40 minutes at the speed of 60 to 80 revolutions per minute to obtain a viscous material;
s6, putting the viscous material into a double-screw extruder, and extruding and granulating to obtain mixed particles;
s7, placing the mixed particles in a shade place, and airing at normal temperature to obtain the denitration agent particles.
Preferably, the size of the screen used in the step S2 is 120 to 130 meshes.
Preferably, the step of S4 is performed at a uniform stirring rate of 120 rpm to 130 rpm for 15 minutes to 20 minutes.
Preferably, the water content of the viscous material in the step S5 is 4-6%.
Preferably, in the step S6, the granulation temperature is normal temperature, and the granulation diameter is 4 mm to 7 mm.
Preferably, the S7 step further comprises hermetically storing the mixture in a plastic can.
Preferably, the use method of the denitration agent particles comprises the following steps:
p1, taking out the sealed and stored denitration agent particles, and crushing the denitration agent particles in a crusher to obtain denitration agent powder;
p2, filtering the denitration agent powder through a 80-mesh screen to obtain fine powder;
p3, adding fine powder into a sprayer, and blowing into a high-temperature flue gas pipeline;
p4, controlling the blowing amount and the flue gas flow rate ratio to be 1: 100-120;
p5, filtering at the outlet of the flue gas pipeline, collecting dust and utilizing the dust as waste.
Claims (9)
1. A production process of an environment-friendly flue gas denitration agent is characterized by comprising the following steps: the environment-friendly flue gas denitration agent is prepared from the following raw materials: 30-50% of sodium carbonate, 10-20% of sodium hydroxide, 10-15% of potassium hydroxide, 5-10% of activated carbon, 5-20% of clay and 5-10% of water.
2. The production process of the environment-friendly flue gas denitration agent according to claim 1, characterized in that: the denitration agent is denitration agent particles, and the production process comprises the following steps:
s1, weighing the raw materials according to the mass percentage for later use;
s2, respectively adding the weighed raw materials into a pulverizer to be pulverized, and sieving the pulverized raw materials through a sieve to be filtered to obtain powder raw materials;
s3, adding sodium carbonate, sodium hydroxide, potassium hydroxide and activated carbon into a stirrer, and uniformly stirring for 40 to 50 minutes at the speed of 20 to 30 revolutions per minute to obtain mixed powder;
s4, adding water into the clay, uniformly stirring, and adjusting the water content to be 20-30% to obtain pasty clay;
s5, adding the mixed powder into the pasty clay, and uniformly stirring for 30 to 40 minutes at the speed of 60 to 80 revolutions per minute to obtain a viscous material;
s6, putting the viscous material into a double-screw extruder, and extruding and granulating to obtain mixed particles;
s7, placing the mixed particles in a shade place, and airing at normal temperature to obtain the denitration agent particles.
3. The production process of the environment-friendly flue gas denitration agent as claimed in claim 2, characterized in that: the size of the sieving screen of the step S2 is 120 meshes to 130 meshes.
4. The production process of the environment-friendly flue gas denitration agent as claimed in claim 2, characterized in that: the step S4 is performed at a uniform stirring rate of 120 to 130 rpm for 15 to 20 minutes.
5. The production process of the environment-friendly flue gas denitration agent as claimed in claim 2, characterized in that: the water content of the viscous material in the step S5 is 4-6%.
6. The production process of the environment-friendly flue gas denitration agent as claimed in claim 2, characterized in that: and in the step S6, the granulation temperature is normal temperature, and the granulation diameter is 4 mm to 7 mm.
7. The production process of the environment-friendly flue gas denitration agent as claimed in claim 2, characterized in that: the step S7 further comprises storing the mixture in a plastic can in a sealed manner.
8. The production process of the environment-friendly flue gas denitration agent as claimed in claim 2, characterized in that: the use method of the denitration agent particles comprises the following steps:
p1, taking out the sealed and stored denitration agent particles, and crushing the denitration agent particles in a crusher to obtain denitration agent powder;
p2, mixing the denitration agent powder and clear water according to a ratio of 1:10-15, and uniformly stirring for 10 to 15 minutes to form a mixed solution;
p3, standing the denitration agent solution for 30-40 minutes, extracting supernatant, and discarding bottom sediment to obtain the denitration agent solution;
p4, adding water to dilute the denitration agent solution to the concentration of 5-8% to obtain a diluted solution;
and P5, introducing the flue gas into the diluted solution, and carrying out chemical reaction dilution to obtain a nitrate and nitrite solution, thus finishing flue gas denitration.
9. The production process of the environment-friendly flue gas denitration agent according to claim 8, characterized in that: the P5 step also includes continuous replenishment of the debonder solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911028695.3A CN110694454A (en) | 2019-10-28 | 2019-10-28 | Production process of environment-friendly flue gas denitration agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911028695.3A CN110694454A (en) | 2019-10-28 | 2019-10-28 | Production process of environment-friendly flue gas denitration agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110694454A true CN110694454A (en) | 2020-01-17 |
Family
ID=69203693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911028695.3A Pending CN110694454A (en) | 2019-10-28 | 2019-10-28 | Production process of environment-friendly flue gas denitration agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110694454A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182243A (en) * | 2013-03-25 | 2013-07-03 | 江苏中材环境工程有限公司 | Preparation and application method of smoke denitrifying agent |
| CN103232036A (en) * | 2013-05-09 | 2013-08-07 | 贺守印 | Preparation method of desulfurization and denitrification active carbon |
-
2019
- 2019-10-28 CN CN201911028695.3A patent/CN110694454A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182243A (en) * | 2013-03-25 | 2013-07-03 | 江苏中材环境工程有限公司 | Preparation and application method of smoke denitrifying agent |
| CN103232036A (en) * | 2013-05-09 | 2013-08-07 | 贺守印 | Preparation method of desulfurization and denitrification active carbon |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106734072B (en) | Treatment method of cyanogen-containing waste residue | |
| CN111960848B (en) | Calcium-based heat storage agent pellet and preparation method thereof | |
| CN108467236B (en) | A kind of stable curing continuous processing technique of heavy metal waste slag | |
| CN102491729A (en) | Method for preparing zeolite water-supply sludge ceramsite for pretreating micro-polluted water | |
| CN104773885A (en) | Comprehensive treatment method of coking desulfurization waste liquid | |
| CN109650492A (en) | A kind of iron-carbon micro-electrolysis filler and preparation method thereof | |
| CN110694454A (en) | Production process of environment-friendly flue gas denitration agent | |
| CN111747727B (en) | System and process for sintering copper-nickel-containing solid hazardous waste | |
| CN109321301A (en) | A kind of production technology of biomass granule fuel | |
| CN107552015B (en) | Modified mangosteen shell and method for reducing vanadium in water body by using same | |
| CN104841393A (en) | Adsorption filtering agent capable of efficiently adsorbing hydrogen sulfide and preparation method thereof | |
| CN107158904A (en) | A kind of particle in photochemical catalyst filter screen | |
| CN107805053A (en) | A kind of method for preparing porous ceramic grain using flyash and biomass electric power plant burnning ash | |
| KR101724168B1 (en) | Method for manufacturing granules from powder materials | |
| CN105316480A (en) | Adding method and device of inhibitor used for reducing generation of dioxin in sintering process | |
| CA2555135C (en) | Method of treatment of wood ash residue | |
| CN109694068A (en) | A kind of brominated activated carbon production method | |
| CN102179234A (en) | Production method of special active carbon for removing mercuric chloride | |
| CN212610314U (en) | Copper-nickel-containing solid hazardous waste sintering system | |
| CN107640769A (en) | Reclaim the production method of powdered carbon regenerative sulfur binding denitration activity charcoal | |
| CN208976481U (en) | Fusing fly ash device | |
| Peng et al. | Secondary leaching of vanadium from vanadium tailing intensified with CaF2 | |
| CN1263048A (en) | Carbide raw material preprocessing method capable of saving energy and reducing pollution | |
| CN110105001A (en) | A kind of preparation method of regenerated fiber composite active mineral material enhancing regeneration concrete | |
| CN115772587B (en) | Environment-friendly blast furnace injection coal multi-effect additive, preparation method and adding device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200117 |