CN115228269A - Water-soluble biomass SNCR (selective non-catalytic reduction) denitration agent as well as preparation method and application thereof - Google Patents
Water-soluble biomass SNCR (selective non-catalytic reduction) denitration agent as well as preparation method and application thereof Download PDFInfo
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- 238000010438 heat treatment Methods 0.000 claims description 14
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 16
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- 125000003277 amino group Chemical group 0.000 description 1
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
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Abstract
The invention discloses a water-soluble biomass SNCR (selective non-catalytic reduction) denitration agent as well as a preparation method and application thereof, wherein the method comprises the following steps: adding 5-10 parts of concentrated sulfuric acid into 5-10 parts of biomass material for sulfonation reaction; filtering to remove biomass residues after the sulfonation reaction to obtain water-soluble biomass sulfonation liquid; adding 2-5 parts of organic acid into the water-soluble biomass sulfonation liquid, and uniformly mixing to obtain a mixed solution; and adding 28-65 parts of water into the mixed solution for dilution to obtain the water-soluble biomass SNCR denitration agent. The process is high in safety, safe and controllable; the method is simple to operate and easy to operate, can achieve the effect of quick and simple construction, not only can greatly reduce the process cost, but also can not cause secondary pollution to the environment.
Description
Technical Field
The invention relates to the technical field of coal flue gas denitration, and particularly relates to a water-soluble biomass SNCR (selective non-catalytic reduction) denitration agent as well as a preparation method and application thereof.
Background
The combustion of fossil energy such as coal and the like can generate a large amount of SO 2 And NO x And various harmful gases not only pollute the ecological environment, but also cause great harm to human bodies, so the research on the flue gas denitration technology is continuously explored and advanced. Nitrogen oxides NO in coal combustion products x Mainly NO and NO 2 The NO content of the bituminous coal gas is about more than 90%, so that the NO content is mainly reduced in the denitration treatment of the bituminous coal gas at present. The well-established Selective Catalytic Reduction (SCR) and selective non-catalytic reduction (SNCR) technologies are widely used at present. The principle of the Selective Catalytic Reduction (SCR) technology is to make NH under the action of a catalyst under the temperature condition of 310-420 DEG C 3 Preferably and NO x Reduction is carried out to remove and generate N 2 And water, thereby reducing ammonia consumption. The principle of selective non-catalytic reduction (SNCR) technology is to incorporate NH 3 The reducing agent is directly sprayed into the flue gas with the temperature of 800-1000 ℃ in the environment without catalyst to react NO x Reduction to N 2 And H 2 O。
The application of the ammonia water SNCR denitration technology in a circulating fluidized bed boiler, which is published in journal of Zhongnitrogenous fertilizer in 2107 by Guangdong-Wei-Dynasty and the like, is recorded in the text: the denitration device operates until now after the denitration of the boiler is improved, the reducing agent adopts self-produced ammonia water, and the denitration rate of the denitration device is only 61.2% on average; in journal of energy science and technology, chaihei et al published in 2022, records "application of urea hydrolysis ammonia production in flue gas denitration system of coal-fired power plant" that: the test results of the ammonia preparation denitration performance of No. 13 two units of urea in a certain plant can respectively reach 83.9 percent and 82.6 percent. In 2022, tangjinlong et al, recorded in "contrastive analysis of SCR denitration ammonia gas preparation supply system" published in Guangdong chemical journal: by comparing the processes of preparing ammonia from liquid ammonia, ammonia water and urea and analyzing respective advantages and disadvantages of the processes, the process for preparing ammonia from ammonia water still has certain dangers, needs to specially consider the safety of the process, has no advantages in equipment investment and occupied area, has the highest comprehensive combination of raw material cost and running cost, and is gradually replaced at present. The liquid ammonia scheme has the advantages of simple equipment, small floor area, lower investment and operation cost than the urea scheme, high transportation and storage cost and high requirements on the safety and arrangement of the process because the liquid ammonia is used as a dangerous chemical with extremely high volatility. As a common chemical, the urea has no special requirements on transportation and storage, the economical efficiency and safety of the urea ammonia production process are high, and the denitration efficiency is still to be improved.
Although the SNCR denitration efficiency in the prior art meets the current environmental protection emission standard, the future environmental protection standard can be improved along with the technical progress, and the SNCR denitration efficiency in the prior art cannot always reach the standard; meanwhile, SNCR denitration in the prior art has high cost, and the used reducing agent is NH 3 Or amino group-containing substances or other substances harmful to the environment, and thus development of new denitration techniques is required.
Disclosure of Invention
The invention aims to provide a water-soluble biomass SNCR (selective non-catalytic reduction) denitration agent as well as a preparation method and application thereof.
In order to achieve the purpose, the invention provides the following technical scheme:
a preparation method of a water-soluble biomass SNCR denitration agent comprises the following steps:
adding 5-10 parts of concentrated sulfuric acid into 5-10 parts of biomass material for sulfonation reaction;
filtering to remove biomass residues after the sulfonation reaction to obtain water-soluble biomass sulfonation liquid;
adding 2-5 parts of organic acid into the water-soluble biomass sulfonation liquid, and uniformly mixing to obtain a mixed solution;
and adding 28-65 parts of water into the mixed solution for dilution to obtain the water-soluble biomass SNCR denitration agent.
Preferably, the method further comprises the steps of: before adding 28-65 parts of water to the mixed solution for dilution,
5-10 parts of urea, 5-10 parts of urotropine, 10-20 parts of ammonium carbonate, 2-5 parts of sodium carbonate and 1-2 parts of sodium hydroxide are added into the mixed solution.
Preferably, the organic acid is a biomass organic acid, including but not limited to one of tannic acid, oxalic acid and tartaric acid;
the biomass material includes, but is not limited to, one or more of wood, bark, vines, starch, wheat straw, and humus.
Preferably, the sulfonation reaction of adding 5-10 parts of concentrated sulfuric acid to 5-10 parts of biomass material comprises the following steps,
taking 5-10 parts of biomass material, adding 5-10 parts of concentrated sulfuric acid, heating at 80 ℃, reacting for 6 hours, and filtering to remove biomass residues after sulfonation reaction to obtain water-soluble biomass sulfonation liquid.
Preferably, the water-soluble biomass SNCR denitration agent is a liquid denitration agent.
A water-soluble biomass SNCR denitration agent comprises, by weight, 5-10 parts of a biomass material, 5-10 parts of concentrated sulfuric acid, 2-5 parts of an organic acid and 28-65 parts of water.
Preferably, the raw material components further comprise: 5-10 parts of urea, 5-10 parts of urotropine, 10-20 parts of ammonium carbonate, 2-5 parts of sodium carbonate and 1-2 parts of sodium hydroxide.
Preferably, the organic acid is a biomass organic acid, including but not limited to one of tannic acid, oxalic acid and tartaric acid; the biomass material includes, but is not limited to, one or more of wood, bark, vines, starch, wheat straw, and humus.
Preferably, the water-soluble biomass SNCR denitration agent is a liquid denitration agent.
The water-soluble biomass SNCR denitration agent is applied to the denitration of bituminous coal gas.
The invention has the technical effects and advantages that:
1. the research direction provided by the invention is novel, and the researched water-soluble biomass SNCR denitration agent converts insoluble biomass materials into water-soluble biomass materials by a sulfonation method, so that the water-soluble biomass materials have good denitration performance.
2. The invention not only can greatly reduce the process cost, but also can not cause secondary pollution to the environment.
3. Has delicate formula and simple preparation process. The raw materials used in the formula are all biomass materials, the materials are nontoxic and environment-friendly, and the pollution of smoke emission such as wheat straw combustion to the atmosphere can be reduced.
4. The process is high in safety and is safe and controllable; the method is simple to operate and easy to operate, and can achieve the effect of quick and simple construction.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
FIG. 1 shows the denitration of NO by different reaction conditions in the embodiment of the present invention x Removing the efficiency map;
FIG. 2 shows NO after denitration in optimal conditions and in various proportions x The efficiency map is removed.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In order to solve the defects of the prior art, the invention discloses a water-soluble biomass SNCR (selective non-catalytic reduction) denitration agent, which comprises the raw material components of 5-10 parts of a biomass material, 5-10 parts of concentrated sulfuric acid, 2-5 parts of organic acid, 5-10 parts of urea, 5-10 parts of urotropine, 10-20 parts of ammonium carbonate, 2-5 parts of sodium carbonate, 1-2 parts of sodium hydroxide and 28-65 parts of water.
In one embodiment of the present invention, the organic acid is a biomass organic acid including, but not limited to, one of tannic acid, oxalic acid, and tartaric acid; the biomass material includes, but is not limited to, one or more of wood, bark, vines, starch, wheat straw, and humus.
In a specific embodiment of the invention, the water-soluble biomass SNCR denitration agent is a liquid-state denitration agent.
In order to further explain the water-soluble biomass SNCR denitration agent, the invention also discloses a preparation method of the water-soluble biomass SNCR denitration agent, which comprises the following steps: adding 5-10 parts of concentrated sulfuric acid into 5-10 parts of biomass material for sulfonation reaction; filtering to remove biomass residues after the sulfonation reaction to obtain water-soluble biomass sulfonation liquid; adding 2-5 parts of organic acid into the water-soluble biomass sulfonation liquid, and uniformly mixing to obtain a mixed solution; adding 5-10 parts of urea, 5-10 parts of urotropine, 10-20 parts of ammonium carbonate, 2-5 parts of sodium carbonate and 1-2 parts of sodium hydroxide into the mixed solution to obtain a new mixed solution;
and adding 28-65 parts of water into the new mixed solution for dilution to obtain the water-soluble biomass SNCR denitration agent.
Further, adding 5-10 parts of concentrated sulfuric acid into 5-10 parts of the biomass material for sulfonation reaction comprises the following steps of taking 5-10 parts of the biomass material, adding 5-10 parts of concentrated sulfuric acid into the biomass material, heating at 80 ℃, reacting for 6 hours, filtering and removing biomass residues after sulfonation reaction to obtain water-soluble biomass sulfonation liquid.
Meanwhile, the invention also discloses an SNCR (selective non-catalytic reduction) denitrifying agent for water-soluble biomass, which is applied to the denitrification of bituminous coal gas.
The technical effects of the technical solution of the present invention will be further described with reference to specific examples.
In one embodiment of the invention, 10 parts of concentrated sulfuric acid is added into 10 parts of biomass material for sulfonation reaction; filtering to remove biomass residues after the sulfonation reaction to obtain water-soluble biomass sulfonation liquid; adding 5 parts of organic acid into the water-soluble biomass sulfonation liquid, and uniformly mixing to obtain a mixed solution; adding 10 parts of urea, 10 parts of urotropine, 20 parts of ammonium carbonate, 5 parts of sodium carbonate and 2 parts of sodium hydroxide into the mixed solution to obtain a new mixed solution; and adding 28 parts of water into the new mixed solution for dilution to obtain the water-soluble biomass SNCR denitration agent.
Denitration tests performed by using the denitration agent in the above examples prove that the specific scheme and results are as follows.
Example 1
A flue gas simulation test device is adopted for simulation experiment, and the flue gas simulation test device mainly comprises a gas control device, a denitration reaction device and a flue gas analysis device. The gas control device adopts the purchased standard gases NO and N 2 、O 2 And (3) as a gas source, introducing the gas into the denitration reaction device according to a certain gas proportion and a certain flow rate to form simulated flue gas. A programmable high-temperature heating furnace and a reaction tube are used as a denitration reaction device, and a water-soluble biomass SNCR denitration agent is added into the denitration reaction device through a liquid flowmeter. The smoke analysis device uses a Testo350 smoke analyzer to analyze the components of the smoke after reaction.
The method comprises the following specific steps:
heating the reaction tube to 1000 ℃;
introducing standard NO and N at the gas speed of 5L/min 2 And O 2 (wherein the initial concentration of NO is 300ppm 2 15% by weight);
adding a water-soluble biomass SNCR denitration agent at the flow rate of 0.10 mL/min;
detecting NO in the smoke through a smoke analyzer after 120min x The content of gas.
Example 2
A flue gas simulation test device is adopted to carry out simulation experiment, and the device mainly comprises a gas control device, a denitration reaction device and a flue gas analysis device. The gas control device adopts the purchased standard gases NO and N 2 、O 2 And (3) as a gas source, introducing the gas into the denitration reaction device according to a certain gas proportion and a certain flow rate to form simulated flue gas. A programmable high-temperature heating furnace and a reaction tube are used as a denitration reaction device, and a water-soluble biomass SNCR denitration agent is added into the denitration reaction device through a liquid flowmeter. The smoke analysis device uses a Testo350 smoke analyzer to analyze the components of the smoke after reaction.
The method comprises the following specific steps:
heating the reaction tube to 1000 ℃;
introducing standard NO and N at the gas speed of 2L/min 2 And O 2 (wherein the initial concentration of NO was 300ppm 2 15% by weight);
adding a water-soluble biomass SNCR denitration agent at the flow rate of 0.10 mL/min;
detecting NO in the smoke through a smoke analyzer after 120min x The content of gas.
Example 3
A flue gas simulation test device is adopted for simulation experiment, and the flue gas simulation test device mainly comprises a gas control device, a denitration reaction device and a flue gas analysis device. The gas control device adopts the purchased standard gases NO and N 2 、O 2 And as a gas source, introducing the gas into the denitration reaction device according to a certain gas proportion and a certain flow rate to form simulated flue gas. A programmable high-temperature heating furnace and a reaction tube are used as a denitration reaction device, and a water-soluble biomass SNCR denitration agent is added into the denitration reaction device through a liquid flowmeter. The smoke analysis device uses a Testo350 smoke analyzer to analyze the components of the smoke after reaction.
The method comprises the following specific steps:
heating the reaction tube to 1000 ℃;
introducing standard NO and N at the gas speed of 2L/min 2 And O 2 (wherein the initial concentration of NO is 300ppm 2 15% by weight);
adding a water-soluble biomass SNCR denitration agent at the flow rate of 0.20 mL/min;
detecting NO in the smoke through a smoke analyzer after 120min x The content of gas.
Comparative example 1
A flue gas simulation test device is adopted to carry out simulation experiment, and the device mainly comprises a gas control device, a denitration reaction device and a flue gas analysis device. The gas control device adopts purchased standard gases NO and N 2 、O 2 And (3) as a gas source, introducing the gas into the denitration reaction device according to a certain gas proportion and a certain flow rate to form simulated flue gas. Using programmable high temperature furnace and reactionThe pipe is used as a denitration reactor, and a denitration agent which is commonly used in the market and takes urea as a main component is added into the denitration reactor through a liquid flowmeter. The smoke analysis device uses a Testo350 smoke analyzer to analyze the components of the smoke after reaction.
The method comprises the following specific steps:
heating the reaction tube to 1000 ℃;
introducing standard NO and N at the gas speed of 2L/min 2 And O 2 (wherein the initial concentration of NO is 300ppm 2 15% by weight).
Adding a denitration agent commonly used in the prior art at a flow rate of 0.20mL/min, wherein the denitration agent commonly used in the prior art takes urea as a main component, or takes ammonia water as a main component, or commonly takes ammonium carbonate as a main component.
The invention adopts the denitration agent which takes urea as the main component in the comparative example 1, and tests and verifications are carried out. Detecting NO in the smoke through a smoke analyzer after 120min x The content of gas.
Comparative example 2
A flue gas simulation test device is adopted for simulation experiment, and the flue gas simulation test device mainly comprises a gas control device, a denitration reaction device and a flue gas analysis device. The gas control device adopts the purchased standard gases NO and N 2 、O 2 And (3) as a gas source, introducing the gas into the denitration reaction device according to a certain gas proportion and a certain flow rate to form simulated flue gas. A programmable high-temperature heating furnace and a reaction tube are used as a denitration reaction device, and a denitration agent which is commonly used in the market and takes ammonia water as a main component is added into the denitration reaction device through a liquid flowmeter. The smoke analysis device uses a Testo350 smoke analyzer to analyze the components of the smoke after reaction.
The method comprises the following specific steps:
heating the reaction tube to 1000 ℃;
introducing standard NO and N at the gas speed of 2L/min 2 And O 2 (wherein the initial concentration of NO is 300ppm 2 15% by weight);
adding a denitration agent commonly used in the prior art at a flow rate of 0.20mL/min, wherein the denitration agent commonly used in the prior art takes urea as a main component, or takes ammonia water as a main component, or commonly takes ammonium carbonate as a main component. Comparative example 2 of the present invention employs a denitration agent containing ammonia as a main component.
Detecting NO in the smoke through a smoke analyzer after 120min x The content of gas.
Comparative example 3
A flue gas simulation test device is adopted for simulation experiment, and the flue gas simulation test device mainly comprises a gas control device, a denitration reaction device and a flue gas analysis device. The gas control device adopts the purchased standard gases NO and N 2 、O 2 And as a gas source, introducing the gas into the denitration reaction device according to a certain gas proportion and a certain flow rate to form simulated flue gas. A programmable high-temperature heating furnace and a reaction tube are used as a denitration reaction device, and a denitration agent which is commonly used in the market and takes ammonium carbonate as a main component is added into the denitration reaction device through a liquid flowmeter. The smoke analysis device uses a Testo350 smoke analyzer to analyze the components of the smoke after reaction.
The method comprises the following specific steps:
heating the reaction tube to 1000 ℃;
introducing standard NO and N at the gas speed of 2L/min 2 And O 2 (wherein the initial concentration of NO is 300ppm 2 15% by weight);
adding a denitration agent commonly used in the prior art at a flow rate of 0.20mL/min, wherein the denitration agent commonly used in the prior art takes urea as a main component, or the denitration agent takes ammonia water as a main component, or the denitration agent commonly used takes ammonium carbonate as a main component. Comparative example 3 of the present invention employs a denitration agent containing ammonium carbonate as a main component;
detecting NO in the smoke through a smoke analyzer after 120min x The content of gas.
As can be seen from FIG. 1, FIG. 1 shows the results of the test using the above-mentioned example NO x The removal efficiency is in a time-varying graph, the gas temperature in the reaction tube is increased along with the reduction of the gas flow velocity, and the nitrogen oxide NO can be increased by the water-soluble biomass SNCR denitration agent x The effect of the treatment of (1). Increasing water solubilityThe dosage of the SNCR denitrifying agent can improve the NO of the water-soluble biomass SNCR denitrifying agent to nitrogen oxides x The effect of the treatment of (1). The optimal experimental conditions of the invention are as follows: the temperature of the reaction tube is 1000 ℃, the airflow speed of the simulated bituminous coal is 2L/min, the flow speed of the water-soluble biomass SNCR denitration agent is 0.2mL/min, and under the condition, the water-soluble biomass SNCR denitration agent can be used for treating nitrogen oxide NO x The optimal treatment effect of the method can reach 95.67 percent.
As can be seen from fig. 2, under the same conditions: the temperature of the reaction tube is 1000 ℃, the airflow speed of the simulated bituminous coal is 2L/min, the flow speed of the denitrifier is 0.2mL/min, and the same initial NO is obtained x In concentration, the denitration agent disclosed by the invention and the denitration agents in the prior art (example 3 and comparative examples 1-3) are used for preparing nitrogen oxide NO by using the SNCR denitration agent for water-soluble biomass x The optimal treatment effect can reach 95.67%, while the highest efficiency of the denitrifier in the prior art can reach 77.67%.
TABLE 1 comparison of the test results of the specific examples of the present invention and the comparative examples
With reference to table 1, it is understood from the results of examples 1 and 2 that the gas flow rate is reduced to increase the temperature of the gas in the reaction tube, thereby increasing the content of nitrogen oxides NO in the water-soluble biomass SNCR denitration agent x The effect of the treatment of (1).
From the results of example 2 and example 3, it is understood that the amount of the water-soluble biomass SNCR denitration agent can be increased to increase the amount of the water-soluble biomass SNCR denitration agent to nitrogen oxide NO x The effect of the treatment of (1).
From the results of example 3 and comparative example 1, it can be seen that the water-soluble biomass SNCR denitration agent can be used for treating nitrogen oxide NO x The treatment effect of the denitration agent is obviously better than that of the denitration agent taking urea as a main component on the market.
From the results of example 3 and comparative example 2, it can be seen that the water-soluble biomass SNCR denitration agent can be used for treating nitrogen oxide NO x The treatment effect of the denitration agent is obviously better than that of the denitration agent taking ammonia water as a main component on the market.
From the results of example 3 and comparative example 3, it can be seen that the water-soluble biomass SNCR denitrifying agent is used for treating nitrogen oxides NO x The treatment effect of the denitration agent is obviously better than that of the denitration agent taking ammonium carbonate as a main component on the market.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. A preparation method of a water-soluble biomass SNCR denitration agent is characterized by comprising the following steps:
adding 5-10 parts of concentrated sulfuric acid into 5-10 parts of biomass material for sulfonation reaction;
filtering to remove biomass residues after the sulfonation reaction to obtain water-soluble biomass sulfonation liquid;
adding 2-5 parts of organic acid into the water-soluble biomass sulfonation liquid, and uniformly mixing to obtain a mixed solution;
and adding 28-65 parts of water into the mixed solution for dilution to obtain the water-soluble biomass SNCR denitration agent.
2. The preparation method of the water-soluble biomass SNCR denitration agent according to claim 1, characterized by further comprising the following steps: before adding 28-65 parts of water to the mixed solution for dilution,
5-10 parts of urea, 5-10 parts of urotropine, 10-20 parts of ammonium carbonate, 2-5 parts of sodium carbonate and 1-2 parts of sodium hydroxide are added into the mixed solution.
3. The preparation method of the SNCR denitration agent for water-soluble biomass according to claim 1, characterized in that,
the organic acid is biomass organic acid, including but not limited to one of tannic acid, oxalic acid and tartaric acid;
the biomass material includes, but is not limited to, one or more of wood, bark, vines, starch, wheat straw, and humus.
4. The preparation method of the SNCR denitration agent for the water-soluble biomass according to claim 1, wherein the step of adding 5-10 parts of concentrated sulfuric acid to 5-10 parts of the biomass material for sulfonation comprises the following steps,
taking 5-10 parts of biomass material, adding 5-10 parts of concentrated sulfuric acid, heating at 80 ℃, reacting for 6 hours, and filtering to remove biomass residues after sulfonation reaction to obtain water-soluble biomass sulfonation liquid.
5. The preparation method of the SNCR denitration agent for the water-soluble biomass according to any one of claims 1 to 4,
the water-soluble biomass SNCR denitration agent is a liquid-state denitration agent.
6. The SNCR denitration agent for the water-soluble biomass is characterized by comprising the following raw materials of 5-10 parts of biomass material, 5-10 parts of concentrated sulfuric acid, 2-5 parts of organic acid and 28-65 parts of water.
7. The SNCR denitration agent for water-soluble biomass according to claim 6, wherein the raw material components further comprise: 5-10 parts of urea, 5-10 parts of urotropine, 10-20 parts of ammonium carbonate, 2-5 parts of sodium carbonate and 1-2 parts of sodium hydroxide.
8. The preparation method of the SNCR denitration agent for the water-soluble biomass according to claim 7,
the organic acid is biomass organic acid, including but not limited to one of tannic acid, oxalic acid and tartaric acid; the biomass material includes, but is not limited to, one or more of wood, bark, vines, starch, wheat straw, and humus.
9. The preparation method of the SNCR denitration agent for water-soluble biomass according to claim 7, characterized in that,
the water-soluble biomass SNCR denitration agent is a liquid-state denitration agent.
10. The application of the water-soluble biomass SNCR denitration agent as set forth in any one of claims 1 to 5, wherein the water-soluble biomass SNCR denitration agent is applied to denitration of bituminous coal gas.
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