CN116899403A - Polymer amino denitration agent and preparation method thereof - Google Patents
Polymer amino denitration agent and preparation method thereof Download PDFInfo
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- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 title claims abstract description 36
- 229920000642 polymer Polymers 0.000 title claims description 19
- 238000002360 preparation method Methods 0.000 title abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 45
- -1 amino compound Chemical class 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000008213 purified water Substances 0.000 claims abstract description 13
- 239000003054 catalyst Substances 0.000 claims abstract description 9
- 239000003112 inhibitor Substances 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 230000004913 activation Effects 0.000 claims abstract description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 12
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000011734 sodium Substances 0.000 claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 7
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 6
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 6
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 6
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 6
- 239000004359 castor oil Substances 0.000 claims description 5
- 235000019438 castor oil Nutrition 0.000 claims description 5
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 5
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 4
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 4
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 4
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical group [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 4
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 4
- 229940071160 cocoate Drugs 0.000 claims description 4
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical group [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 4
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 4
- 150000003462 sulfoxides Chemical class 0.000 claims description 4
- 150000003568 thioethers Chemical class 0.000 claims description 4
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 229920002521 macromolecule Polymers 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000004480 active ingredient Substances 0.000 abstract description 3
- 230000007935 neutral effect Effects 0.000 abstract description 3
- 231100000956 nontoxicity Toxicity 0.000 abstract description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 239000003546 flue gas Substances 0.000 description 7
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000003756 stirring Methods 0.000 description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- 230000003213 activating effect Effects 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 238000010531 catalytic reduction reaction Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000001099 ammonium carbonate Substances 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 description 1
- 239000005695 Ammonium acetate Substances 0.000 description 1
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229940043376 ammonium acetate Drugs 0.000 description 1
- 235000019257 ammonium acetate Nutrition 0.000 description 1
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 229940088990 ammonium stearate Drugs 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- JPNZKPRONVOMLL-UHFFFAOYSA-N azane;octadecanoic acid Chemical compound [NH4+].CCCCCCCCCCCCCCCCCC([O-])=O JPNZKPRONVOMLL-UHFFFAOYSA-N 0.000 description 1
- PPBAJDRXASKAGH-UHFFFAOYSA-N azane;urea Chemical compound N.NC(N)=O PPBAJDRXASKAGH-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003339 best practice Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003920 environmental process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8628—Processes characterised by a specific catalyst
-
- 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
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
-
- 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
-
- 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
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
A high molecular amino-denitrifying agent and a preparation method thereof belong to the technical field of denitrifying agent preparation. The denitration catalyst comprises a denitration amino component and is characterized by comprising the following components in parts by weight: 70 to 90 parts of amino compound, 4.5 to 7.5 parts of catalyst, 3 to 5 parts of glidant, 3.8 to 6.2 parts of solubilizer and 3.8 to 6.2 parts of inhibitor; wherein the amino complex is NH 4 HCO 3 、Na 2 CO 3 、NH 4 Cl、V 2 O 5 、CuSO 4 And KMnO 4 Is a complex of (a) and (b). The invention is prepared by adding various amino active ingredients into purified water for reaction and activation, and is colorless and transparent liquid and non-volatile. No toxicity, no harm to environment and no pollution to water. When exposed to fire and high heat, the material is incombustible and explosion-proof, and the pH value is neutral.
Description
Technical Field
A high molecular amino-denitrifying agent and a preparation method thereof belong to the technical field of denitrifying agent preparation.
Background
Denitration is an important field in the direction of environmental protection of the atmosphere in China all the time, and a large amount of denitration agents are required for a selective catalytic reduction method and a selective non-catalytic reduction method which are applied to large-scale industry at present. Typical selective non-catalytic environmental process denitration agents include liquid ammonia, ammonia water and urea. However, liquid ammonia requires high-pressure equipment for storage and is highly toxic. For ammonia water, the advantages are low running cost, but high transportation cost. Urea has obvious advantages in the aspect of safety and storage and transportation. But at a higher cost. So the polymer denitration agent which can integrate various advantages of the traditional denitration agent at present is an advantageous direction of active research of people. The polymer denitration process has the advantages of simple structure, small equipment floor area, low maintenance and overhaul cost, low equipment noise, stable operation and the like. The molecular denitration process is similar to the traditional denitration process, and the powdery high-molecular denitration agent needs to be sprayed to the smoke in the optimal temperature area, namely, the higher denitration rate can be realized.
Chinese patent CN106621782B discloses a polymer denitration agent, which comprises three components: (1) At least one of urea, ammonium carbonate, ammonium bicarbonate, ammonium acetate, ammonium sulfate, melamine, benzomelamine as an ammonium/amine source. 99.0 to 30.0 parts by mass of the ammonium/amine source; (2) 1.0 to 70.0 parts by mass of synergistic polymer which consists of polyacrylate and/or polyalkylacrylate and/or polyacrylamide and copolymer high molecular carrier and/or high molecular filler thereof; (3) 0 to 10.0 parts by mass of other components. The other components at least comprise powder with one of the following components: ammonium stearate; magnesium stearate; calcium stearate; a mildew inhibitor; precipitation of calcium carbonate; magnesium oxide; a zeolite. The denitration agent is a high-efficiency polymer denitration agent formed by compounding any two or three of polyacrylic acid, polyalkyl acrylic acid, polyacrylamide and acrylic acid/alkyl acrylic acid/acrylamide with an ammonium/amine source, and the denitration rate can reach 82.3% -99.3% under the condition of 800-1050 ℃. However, the anti-sales agent contains a plurality of toxic components, which can cause harm to operators and the environment during the actual application process or after the application.
Disclosure of Invention
The invention aims to solve the technical problems that: overcomes the defects of the prior art and provides a polymer amino denitration agent which is non-volatile, nontoxic and harmless to the environment and a preparation method thereof.
The technical scheme adopted for solving the technical problems is as follows: the high molecular amino denitration agent comprises a denitration amino component and is characterized by comprising the following components in parts by weight: 70 to 90 parts of amino compound, 4.5 to 7.5 parts of catalyst, 3 to 5 parts of glidant, 3.8 to 6.2 parts of solubilizer and 3.8 to 6.2 parts of inhibitor;
wherein the amino complex is NH 4 HCO 3 、Na 2 CO 3 、NH 4 Cl、V 2 O 5 、CuSO 4 And KMnO 4 Is a complex of (a) and (b).
The product is developed to obtain the additive aiming at the defects of low efficiency, high temperature area requirement, high ammonia escape and the like of urea solution in denitration. The invention adopts various amino raw materials, and the amino raw materials react to generate various active elements and ammonia under the drive of temperature. The urea ammonia and the nitrogen oxides fully react, thereby playing a role of catalytic reduction. The method can be applied to power plants, thermal power plants, steel plants, chemical plants, cement plants and the like, and flue gas SNCR and SCR denitration can be obtained in the field of fuel coal and gas. The ratio can be adjusted according to the furnace type and the smoke composition during specific application.
The invention is prepared by adding various amino active ingredients into purified water for reaction and activation, and is colorless and transparent liquid and non-volatile. No toxicity, no harm to environment and no pollution to water. When exposed to fire and high heat, the material is incombustible and explosion-proof, and the pH value is neutral.
Preferably, in the polymer amino denitration agent, the denitration amino component comprises the following components in parts by weight: 78 to 82 parts of amino compound, 5.5 to 6.5 parts of catalyst, 3.5 to 4.5 parts of glidant, 4.6 to 5.4 parts of solubilizer and 4.8 to 5.6 parts of inhibitor. Under the preferable proportion, the matching among materials is more reasonable, and the out-of-stock effect is better.
Preferably, in the polymer amino denitration agent, the catalyst is potassium persulfate, ammonium persulfate or benzoyl peroxide. The catalyst can better promote the activity of the denitration agent and has higher catalytic efficiency.
Preferably, in the polymer amino denitration agent, the glidant is sodium carboxymethyl cellulose, potassium carboxymethyl cellulose, ammonium carboxymethyl cellulose or polymerized acrylamide. The preferred glidants promote flowability of the material. Better guarantees the uniformity of the components of the stripping agent in the preparation process.
Preferably, in the polymer amino denitration agent, the solubilizer is hydrogenated castor oil or glycerol cocoate. After the optimized solubilizer is used, the uniform dispersion of the pin removing agent is facilitated when the pin removing agent is used, so that the pin removing agent can be uniformly sprayed into small liquid drops, and the contact of flue gas is facilitated.
Preferably, in the polymer amino denitration agent, the inhibitor is organic sulfoxide, organic thioether or methyl silicone oil.
Preferably, in the polymer amino denitration agent, the NH 4 HCO 3 、Na 2 CO 3 、NH 4 Cl、V 2 O 5 、CuSO 4 And KMnO 4 The molar ratio of (2) is 30-40:25-35:1-5:0.5-2:2-6:2-7. The preferred amino complex denitration is inefficient and accommodates a wider warm zone.
A process for preparing the high-molecular amino denitrifying agent includes such steps as adding purified water to raw materials of high-molecular amino denitrifying agent, and reaction. The preparation process of the invention is simple, easy to realize, has low requirements on equipment, and can be directly used by being uniformly mixed with purified water at normal temperature.
Preferably, in the preparation method of the polymer amino denitration agent, the mass ratio of the total mass of the denitration amino component to purified water is 4-6:4-6.
Compared with the prior art, the high molecular amino denitration agent and the preparation method thereof have the beneficial effects that: the invention is prepared by adding various amino active ingredients into purified water for reaction and activation, and is colorless and transparent liquid and non-volatile. No toxicity, no harm to environment and no pollution to water. When exposed to fire and high heat, the material is incombustible and explosion-proof, and the pH value is neutral. The invention greatly reduces the comprehensive denitration cost: the denitration efficiency is improved from 40-50% to 70-90% (SNCR), and the consumption is reduced by about 20%. The polymer amino denitration agent is sprayed in a temperature range of 700-1100 ℃ in a boiler, and the polymer amino denitration agent is rapidly decomposed to generate a large number of reducing high-activity free radicals to react with NOx in a reduction way, so that the NOx is reduced into N 2 And H 2 O is removed, and other side reactions do not occur.The additive can spontaneously obtain ammonia gas and various active elements in certain quantity, and the additive reacts with nitrogen oxides in the flue gas to generate no toxic secondary products.
Detailed Description
The invention will be further described with reference to specific examples, of which example 1 is the best practice.
Example 1
NH is added to 4 HCO 3 、Na 2 CO 3 、NH 4 Cl、V 2 O 5 、CuSO 4 And KMnO 4 The amino compound is prepared by the preparation method according to the molar ratio of 35:30:3:1.5:4.5; then 80 parts of amino compound, 6.0 parts of ammonium persulfate, 4.0 parts of sodium carboxymethyl cellulose, 5.0 parts of hydrogenated castor oil and 5.2 parts of organic sulfoxide are prepared according to parts by weight; adding purified water at a mass ratio of 5:5 at normal temperature, stirring for 35min, and activating.
Example 2
NH is added to 4 HCO 3 、Na 2 CO 3 、NH 4 Cl、V 2 O 5 、CuSO 4 And KMnO 4 The amino compound is prepared by the preparation method according to the molar ratio of 32:32:2:1.7:3:5.5; 78 parts of amino compound, 6.5 parts of potassium persulfate, 3.5 parts of sodium carboxymethyl cellulose, 5.4 parts of glycerol cocoate and 4.8 parts of organic thioether are prepared according to parts by weight; adding purified water at a mass ratio of 5:4 at normal temperature, stirring for 37min, and activating.
Example 3
NH is added to 4 HCO 3 、Na 2 CO 3 、NH 4 Cl、V 2 O 5 、CuSO 4 And KMnO 4 The amino compound is prepared by the preparation method according to the molar ratio of 37:28:4:1.0:5:3.5; then 82 parts of amino compound, 5.5 parts of benzoyl peroxide, 4.5 parts of carboxymethyl cellulose ammonium, 4.6 parts of hydrogenated castor oil and 5.6 parts of organic thioether are prepared according to parts by weight; adding purified water at normal temperature according to the mass ratio of 4:5, stirring for 33min, and completing the reaction and activation.
Example 4
NH is added to 4 HCO 3 、Na 2 CO 3 、NH 4 Cl、V 2 O 5 、CuSO 4 And KMnO 4 Pre-preparing an amino compound according to a molar ratio of 30:35:1:2:2:7; then 70 parts of amino compound, 7.5 parts of potassium persulfate, 3 parts of carboxymethyl cellulose ammonium, 6.2 parts of hydrogenated castor oil and 3.8 parts of organic sulfoxide are prepared according to parts by weight; adding purified water at a mass ratio of 4:6 at normal temperature, stirring for 30min, and activating.
Example 5
NH is added to 4 HCO 3 、Na 2 CO 3 、NH 4 Cl、V 2 O 5 、CuSO 4 And KMnO 4 The amino compound is prepared by the preparation method according to the molar ratio of 40:25:5:0.5:6:2; then 90 parts of amino compound, 4.5 parts of benzoyl peroxide, 5 parts of polymerized acrylamide, 3.8 parts of glycerol cocoate and 6.2 parts of methyl silicone oil are prepared according to parts by weight; adding purified water at a mass ratio of 6:4 at normal temperature, stirring for 40min, and activating.
Denitration performance test: before denitration effect test, a test device (comprising a 800-1050 ℃ reactor, an NO steel cylinder, a reactor inlet pipeline system, a denitration agent bin, a double-screw feeding system entering the reactor, a flue gas outlet pipeline in the reactor and a flue gas analyzer) is assembled.
Opening an NO steel bottle, connecting a flue gas analyzer at a flue gas outlet pipeline of the reactor at the flow rate of 5L/min, and measuring the concentration of NO; after the concentration of NO in the smoke analyzer is stable, adding the polymer denitration agent of the embodiment, and measuring the concentration of NO at the flow rate of 5 g/min; the denitration efficiency was calculated from the two NO concentrations. The test results of each example are shown in Table 1.
Table 1 denitration performance of examples
The above description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (9)
1. The high molecular amino denitration agent comprises a denitration amino component and is characterized by comprising the following components in parts by weight: 70 to 90 parts of amino compound, 4.5 to 7.5 parts of catalyst, 3 to 5 parts of glidant, 3.8 to 6.2 parts of solubilizer and 3.8 to 6.2 parts of inhibitor;
wherein the amino complex is NH 4 HCO 3 、Na 2 CO 3 、NH 4 Cl、V 2 O 5 、CuSO 4 And KMnO 4 Is a complex of (a) and (b).
2. A polymeric amino-denitration agent according to claim 1, wherein: the composition of the weight portion is as follows: 78 to 82 parts of amino compound, 5.5 to 6.5 parts of catalyst, 3.5 to 4.5 parts of glidant, 4.6 to 5.4 parts of solubilizer and 4.8 to 5.6 parts of inhibitor.
3. A polymeric amino-denitration agent according to claim 1 or 2, characterized in that: the catalyst is potassium persulfate, ammonium persulfate or benzoyl peroxide.
4. A polymeric amino-denitration agent according to claim 1 or 2, characterized in that: the glidant is sodium carboxymethyl cellulose, potassium carboxymethyl cellulose, ammonium carboxymethyl cellulose or polymerized acrylamide.
5. A polymeric amino-denitration agent according to claim 1 or 2, characterized in that: the solubilizer is hydrogenated castor oil or glycerol cocoate.
6. A polymeric amino-denitration agent according to claim 1 or 2, characterized in that: the inhibitor is organic sulfoxide, organic thioether or methyl silicone oil.
7. A polymeric amino-denitration agent according to claim 1, wherein: said NH 4 HCO 3 、Na 2 CO 3 、NH 4 Cl、V 2 O 5 、CuSO 4 And KMnO 4 The molar ratio of (2) is 30-40:25-35:1-5:0.5-2:2-6:2-7.
8. A method for preparing the polymer amino denitration agent as claimed in any one of claims 1 to 7, characterized by comprising the steps of: adding purified water into the raw materials of the macromolecule amino denitration agent comprising the denitration amino component, and performing reaction and activation.
9. The method for preparing the macromolecular amino denitration agent according to claim 8, which is characterized by comprising the following steps: the mass ratio of the total mass of the denitrated amino component to the purified water is 4-6:4-6.
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