CN115228269B - 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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- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 5
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- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 claims description 5
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Abstract
The invention discloses a water-soluble biomass SNCR denitration agent and 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 materials for sulfonation reaction; filtering to remove biomass residues after sulfonation reaction, and obtaining water-soluble biomass sulfonation liquid; adding 2-5 parts of organic acid into the water-soluble biomass sulfonated solution, 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 invention has high process safety and is safe and controllable; the method is simple to operate and easy to operate, can achieve the effect of rapid, simple and convenient construction, can greatly reduce the process cost, and can not cause secondary pollution to the environment.
Description
Technical Field
The invention relates to the technical field of coal flue gas denitration, in particular to a water-soluble biomass SNCR denitration agent, a preparation method and application thereof.
Background
Fossil energy combustion such as coal can generate a large amount of SO 2, NO x and other harmful gases, SO that the ecological environment is polluted, and the human body is greatly harmed, and the research on flue gas denitration technology is continuously explored and advanced. Nitrogen oxides NO x in the coal combustion products are mainly NO and NO 2, wherein the NO content is about 90% or more, so the NO content is mainly reduced for the flue gas denitration treatment at present. The more sophisticated technologies that are currently in widespread use are Selective Catalytic Reduction (SCR) and selective non-catalytic reduction (SNCR). The principle of the Selective Catalytic Reduction (SCR) technology is that under the temperature condition of 310-420 ℃, NH 3 and NO x are subjected to reduction and removal preferentially under the action of a catalyst to generate N 2 and water, so that the consumption of ammonia is reduced. The principle of the selective non-catalytic reduction (SNCR) technology is that a reducing agent containing NH 3 groups is directly sprayed into flue gas with the temperature of 800-1000 ℃ in the environment without a catalyst to reduce NO x into N 2 and H 2 O.
Ren Weian et al, 2107, published in journal of "medium nitrogen fertilizer", describe the application of ammonia SNCR denitration technology in circulating fluidized bed boilers: the denitration device operates until now after the boiler denitration is modified, the reducing agent adopts self-produced ammonia water, and the denitration rate of the denitration device is only 61.2% on average; chai Wei et al 2022, journal on energy science and technology, states that "application of urea hydrolysis ammonia production in flue gas denitration system of coal-fired power plant" is as follows: the test results of ammonia production and denitration performance of two sets of urea of No. 13 of a certain plant can reach 83.9% and 82.6% respectively. Shang Jinlong et al 2022, journal in Guangdong chemical industry, describe "comparative analysis of SCR denitration Ammonia preparation and supply System": by comparing the processes of preparing ammonia from liquid ammonia, ammonia water and urea and analyzing the advantages and disadvantages of the processes, the process of preparing ammonia from ammonia water is considered to have certain dangers, the safety of the process needs to be considered, the process has no advantages in equipment investment and occupation area, the raw material cost and the operation cost are the highest in comprehensive view, and the process is gradually replaced at present. The liquid ammonia scheme has simple equipment, small occupied area and lower investment and operation cost than the urea scheme, but liquid ammonia is used as dangerous chemical with extremely strong volatility, so that the transportation and storage costs are high, and the requirements on the safety and arrangement of the process are high. Urea is used as a common chemical, no special requirements are required for transportation and storage, and the economy and safety of the urea ammonia production process are high, but the denitration efficiency still needs to be improved.
Although SNCR denitration efficiency in the prior art meets the current environmental protection emission standard, with the progress of the technology, the future environmental protection standard can be improved, and the SNCR denitration efficiency in the prior art can not reach the standard; meanwhile, SNCR denitration in the prior art has high cost, and the used reducing agent is NH 3 or substances containing amino or other substances harmful to the environment, so that new denitration technology needs to be developed.
Disclosure of Invention
The invention aims to provide a water-soluble biomass SNCR denitration agent, a preparation method and application thereof.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A method for preparing a water-soluble biomass SNCR denitration agent, comprising the following steps:
Adding 5-10 parts of concentrated sulfuric acid into 5-10 parts of biomass materials for sulfonation reaction;
Filtering to remove biomass residues after sulfonation reaction, and obtaining water-soluble biomass sulfonation liquid;
Adding 2-5 parts of organic acid into the water-soluble biomass sulfonated solution, 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 28-65 parts of water is added to the mixed solution for dilution,
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.
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 is carried out by adding 5-10 parts of concentrated sulfuric acid into 5-10 parts of biomass material,
Taking 5-10 parts of biomass material, adding 5-10 parts of concentrated sulfuric acid into the biomass material, heating the mixture at 80 ℃, reacting the mixture for 6 hours, and filtering the mixture to remove biomass residues after sulfonation reaction to obtain the water-soluble biomass sulfonated liquid.
Preferably, the water-soluble biomass SNCR denitration agent is a liquid denitration agent.
The water-soluble biomass SNCR denitration agent comprises, by weight, 5-10 parts of biomass materials, 5-10 parts of concentrated sulfuric acid, 2-5 parts of organic acids and 28-65 parts of water.
Preferably, the raw material component further comprises: 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 application of the water-soluble biomass SNCR denitration agent in bituminous coal gas denitration.
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 can greatly reduce the process cost and can not cause secondary pollution to the environment.
3. The formula is exquisite, and the preparation process is simple. The raw materials used in the formula are all biomass materials, the materials are nontoxic and environmentally friendly, and the pollution to the atmosphere caused by the smoke emission of wheat straw combustion and the like can be reduced.
4. The process safety is high and the safety is controllable; the operation is simple, the operation is easy to get on the hand, and the effect of rapid and simple construction can be achieved.
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 practice of the invention. The objectives and other advantages of the invention may 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 is a graph showing NO x removal efficiency after denitration using different reaction conditions in the embodiment of the invention;
FIG. 2 is a graph showing NO x removal efficiency after denitration under optimal conditions and in each comparative example.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the 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 following raw material components of 5-10 parts of biomass materials, 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 denitration agent.
In order to further illustrate 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 materials for sulfonation reaction; filtering to remove biomass residues after sulfonation reaction, and obtaining water-soluble biomass sulfonation liquid; adding 2-5 parts of organic acid into the water-soluble biomass sulfonated solution, 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 biomass material for sulfonation reaction, wherein the steps comprise taking 5-10 parts of biomass material, adding 5-10 parts of concentrated sulfuric acid into the biomass material, heating the biomass material at 80 ℃, reacting the biomass material for 6 hours, and filtering to remove biomass residues after the sulfonation reaction to obtain the water-soluble biomass sulfonation liquid.
Meanwhile, the invention also discloses an application of the water-soluble biomass SNCR denitration agent in bituminous coal gas denitration.
The technical effects of the technical scheme 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 to carry out sulfonation reaction; filtering to remove biomass residues after sulfonation reaction, and obtaining water-soluble biomass sulfonation liquid; adding 5 parts of organic acid into the water-soluble biomass sulfonated solution, 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 experiments were performed using the denitration agent in the above examples, and specific schemes and results are as follows.
Example 1
A flue gas simulation test device is adopted for simulation experiments, and 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、O2 as gas sources, and the purchased standard gases NO and N 2、O2 are introduced into the denitration reaction device according to a certain gas proportion and flow rate to form simulated flue gas. The method is characterized in that a programmable high-temperature heating furnace and a reaction tube are adopted 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 flue gas analysis device uses a Testo350 flue gas analyzer to analyze the components of the reacted flue gas.
The method comprises the following specific steps:
heating the reaction tube to 1000 ℃;
standard NO, N 2 and O 2 (wherein the initial concentration of NO is 300ppm and the O 2 ratio is 15%) were fed at a gas rate of 5L/min;
adding a water-soluble biomass SNCR denitration agent at a flow rate of 0.10 mL/min;
And detecting the content of NO x gas in the flue gas by a flue gas analyzer after 120 min.
Example 2
A flue gas simulation test device is adopted for simulation experiments, and 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、O2 as gas sources, and the purchased standard gases NO and N 2、O2 are introduced into the denitration reaction device according to a certain gas proportion and flow rate to form simulated flue gas. The method is characterized in that a programmable high-temperature heating furnace and a reaction tube are adopted 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 flue gas analysis device uses a Testo350 flue gas analyzer to analyze the components of the reacted flue gas.
The method comprises the following specific steps:
heating the reaction tube to 1000 ℃;
Standard NO, N 2 and O 2 (wherein the initial concentration of NO is 300ppm and the ratio of O 2 is 15%) are introduced at the gas speed of 2L/min;
adding a water-soluble biomass SNCR denitration agent at a flow rate of 0.10 mL/min;
And detecting the content of NO x gas in the flue gas by a flue gas analyzer after 120 min.
Example 3
A flue gas simulation test device is adopted for simulation experiments, and 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、O2 as gas sources, and the purchased standard gases NO and N 2、O2 are introduced into the denitration reaction device according to a certain gas proportion and flow rate to form simulated flue gas. The method is characterized in that a programmable high-temperature heating furnace and a reaction tube are adopted 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 flue gas analysis device uses a Testo350 flue gas analyzer to analyze the components of the reacted flue gas.
The method comprises the following specific steps:
heating the reaction tube to 1000 ℃;
Standard NO, N 2 and O 2 (wherein the initial concentration of NO is 300ppm and the ratio of O 2 is 15%) are introduced at the gas speed of 2L/min;
adding a water-soluble biomass SNCR denitration agent at a flow rate of 0.20 mL/min;
And detecting the content of NO x gas in the flue gas by a flue gas analyzer after 120 min.
Comparative example 1
A flue gas simulation test device is adopted for simulation experiments, and 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、O2 as gas sources, and the purchased standard gases NO and N 2、O2 are introduced into the denitration reaction device according to a certain gas proportion and flow rate to form simulated flue gas. The denitration device adopts a programmable high-temperature heating furnace and a reaction tube as a denitration reaction device, and a denitration agent which is commonly used in the market and takes urea as a main component is added into the denitration reaction device through a liquid flowmeter. The flue gas analysis device uses a Testo350 flue gas analyzer to analyze the components of the reacted flue gas.
The method comprises the following specific steps:
heating the reaction tube to 1000 ℃;
Standard NO, N 2 and O 2 (wherein the initial concentration of NO is 300ppm and the O 2 ratio is 15%) were fed at a gas velocity of 2L/min.
The denitration agent commonly used in the prior art is added at the flow rate of 0.20mL/min, wherein the denitration agent commonly used in the prior art and taking urea as a main component, or the denitration agent using ammonia water as a main component, or the denitration agent commonly used and taking ammonium carbonate as a main component.
In comparative example 1, a denitration agent containing urea as a main component was used, and test verification was performed. And detecting the content of NO x gas in the flue gas by a flue gas analyzer after 120 min.
Comparative example 2
A flue gas simulation test device is adopted for simulation experiments, and 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、O2 as gas sources, and the purchased standard gases NO and N 2、O2 are introduced into the denitration reaction device according to a certain gas proportion and flow rate to form simulated flue gas. The denitration device adopts a programmable high-temperature heating furnace and a reaction tube 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 flue gas analysis device uses a Testo350 flue gas analyzer to analyze the components of the reacted flue gas.
The method comprises the following specific steps:
heating the reaction tube to 1000 ℃;
Standard NO, N 2 and O 2 (wherein the initial concentration of NO is 300ppm and the ratio of O 2 is 15%) are introduced at the gas speed of 2L/min;
the denitration agent commonly used in the prior art is added at the flow rate of 0.20mL/min, wherein the denitration agent commonly used in the prior art and taking urea as a main component, or the denitration agent using ammonia water as a main component, or the denitration agent commonly used and taking ammonium carbonate as a main component. The present invention of comparative example 2 uses a denitration agent containing ammonia as a main component.
And detecting the content of NO x gas in the flue gas by a flue gas analyzer after 120 min.
Comparative example 3
A flue gas simulation test device is adopted for simulation experiments, and 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、O2 as gas sources, and the purchased standard gases NO and N 2、O2 are introduced into the denitration reaction device according to a certain gas proportion and flow rate to form simulated flue gas. The denitration device adopts a programmable high-temperature heating furnace and a reaction tube 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 flue gas analysis device uses a Testo350 flue gas analyzer to analyze the components of the reacted flue gas.
The method comprises the following specific steps:
heating the reaction tube to 1000 ℃;
Standard NO, N 2 and O 2 (wherein the initial concentration of NO is 300ppm and the ratio of O 2 is 15%) are introduced at the gas speed of 2L/min;
the denitration agent commonly used in the prior art is added at the 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 used denitration agent taking ammonium carbonate as a main component. In comparative example 3, a denitration agent containing ammonium carbonate as a main component was used;
And detecting the content of NO x gas in the flue gas by a flue gas analyzer after 120 min.
As a specific test result, as can be seen from fig. 1, fig. 1 shows a time-dependent graph of the removal efficiency of NO x in the above embodiment, and the effect of the water-soluble biomass SNCR denitration agent on the treatment of nitrogen oxide NO x can be improved as the gas flow rate is reduced to facilitate the temperature rise of the gas in the reaction tube. The use amount of the water-soluble biomass SNCR denitration agent is increased, so that the treatment effect of the water-soluble biomass SNCR denitration agent on nitrogen oxide NO x can be improved. The optimal experimental conditions of the invention are: the temperature of the reaction tube is 1000 ℃, the flow rate of simulated smoke gas is 2L/min, the flow rate of the water-soluble biomass SNCR denitration agent is 0.2mL/min, and under the condition, the treatment effect of the water-soluble biomass SNCR denitration agent on nitrogen oxide NO x can reach 95.67 percent optimally.
As can be seen from fig. 2, under the same conditions: the temperature of the reaction tube is 1000 ℃, the flow rate of simulated flue gas is 2L/min, the flow rate of the denitrifying agent is 0.2mL/min, and when the initial NO x concentration is the same, the denitrifying agent has the optimal treatment effect of the water-soluble biomass SNCR denitrifying agent on nitrogen oxide NO x of 95.67% compared with the prior art (example 3 and comparative examples 1-3), and the highest efficiency of the prior art denitrifying agent can reach 77.67%.
TABLE 1 comparison of test results for specific examples of the invention and comparative examples
As is clear from the results of examples 1 and 2, in combination with table 1, the reduction of the gas flow rate is advantageous for the temperature increase of the gas in the reaction tube, and the treatment effect of the water-soluble biomass SNCR denitration agent on the nitrogen oxide NO x can be improved.
From the results of example 2 and example 3, it is understood that the treatment effect of the water-soluble biomass SNCR denitration agent on the nitrogen oxide NO x can be improved by increasing the amount of the water-soluble biomass SNCR denitration agent.
As is clear from the results of example 3 and comparative example 1, the treatment effect of the water-soluble biomass SNCR denitration agent on nitrogen oxide NO x is significantly better than that of the denitration agent using urea as the main component on the market.
As is clear from the results of example 3 and comparative example 2, the treatment effect of the water-soluble biomass SNCR denitration agent on nitrogen oxide NO x is significantly better than that of the denitration agent using ammonia water as the main component on the market.
As is clear from the results of example 3 and comparative example 3, the treatment effect of the water-soluble biomass SNCR denitration agent on the nitrogen oxide NO x is significantly better than that of the denitration agent using ammonium carbonate as the main component on the market.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and 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 described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (5)
1. A method for preparing a water-soluble biomass SNCR denitration agent, which is characterized by comprising the following steps of:
Adding 5-10 parts of concentrated sulfuric acid into 5-10 parts of biomass materials for sulfonation reaction;
Filtering to remove biomass residues after sulfonation reaction, and obtaining water-soluble biomass sulfonation liquid;
Adding 2-5 parts of organic acid into the water-soluble biomass sulfonated solution, and uniformly mixing to obtain a mixed solution;
Adding 28-65 parts of water into the mixed solution for dilution to obtain a water-soluble biomass SNCR denitration agent;
Before 28-65 parts of water is added to the mixed solution for dilution,
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;
the organic acid is a biomass organic acid including, but not limited to, one of tannic acid, oxalic acid, and tartaric acid;
The water-soluble biomass SNCR denitration agent is a liquid denitration agent.
2. The method for preparing the SNCR denitration agent for water-soluble biomass, as claimed in claim 1, is characterized in that,
The biomass material includes, but is not limited to, one or more of wood, bark, vines, starch, wheat straw, and humus.
3. The method for preparing a water-soluble biomass SNCR denitration agent as claimed in claim 1, wherein the step of adding 5-10 parts of concentrated sulfuric acid to 5-10 parts of biomass material to carry out sulfonation reaction comprises the following steps,
Taking 5-10 parts of biomass material, adding 5-10 parts of concentrated sulfuric acid into the biomass material, heating the mixture at 80 ℃, reacting the mixture for 6 hours, and filtering the mixture to remove biomass residues after sulfonation reaction to obtain the water-soluble biomass sulfonated liquid.
4. The water-soluble biomass SNCR denitration agent is characterized by comprising the following raw material components of 5-10 parts of biomass materials, 5-10 parts of concentrated sulfuric acid, 2-5 parts of organic acid, 28-65 parts of water, 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; wherein,
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;
The water-soluble biomass SNCR denitration agent is a liquid denitration agent.
5. The use of the water-soluble biomass SNCR denitration agent according to claim 4, wherein the water-soluble biomass SNCR denitration agent is used for denitration of bituminous coal gas.
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| CN105854542A (en) * | 2016-05-23 | 2016-08-17 | 天津市思茂阁科技有限责任公司 | Method for purifying nitrogen-containing oxide tail gas |
| CN107794099A (en) * | 2017-11-23 | 2018-03-13 | 邓丽珍 | A kind of biomass denitrfying agent |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105854542A (en) * | 2016-05-23 | 2016-08-17 | 天津市思茂阁科技有限责任公司 | Method for purifying nitrogen-containing oxide tail gas |
| CN107794099A (en) * | 2017-11-23 | 2018-03-13 | 邓丽珍 | A kind of biomass denitrfying agent |
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