CN114713252A - Desulfurization and denitrification carbon-based catalyst and preparation method thereof - Google Patents
Desulfurization and denitrification carbon-based catalyst and preparation method thereof Download PDFInfo
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- CN114713252A CN114713252A CN202210270240.8A CN202210270240A CN114713252A CN 114713252 A CN114713252 A CN 114713252A CN 202210270240 A CN202210270240 A CN 202210270240A CN 114713252 A CN114713252 A CN 114713252A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 239000003054 catalyst Substances 0.000 title claims abstract description 32
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 30
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 30
- 230000023556 desulfurization Effects 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000003245 coal Substances 0.000 claims abstract description 32
- 239000011230 binding agent Substances 0.000 claims abstract description 20
- 239000002893 slag Substances 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 238000004939 coking Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 8
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 7
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003830 anthracite Substances 0.000 claims abstract description 7
- 239000010426 asphalt Substances 0.000 claims abstract description 7
- 239000011734 sodium Substances 0.000 claims abstract description 7
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 230000003213 activating effect Effects 0.000 claims abstract description 3
- 239000000571 coke Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 229910052720 vanadium Inorganic materials 0.000 claims description 8
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 7
- 230000004913 activation Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical group [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 239000005539 carbonized material Substances 0.000 claims description 4
- 238000010000 carbonizing Methods 0.000 claims description 4
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 4
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical group C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 239000004021 humic acid Substances 0.000 claims description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical group [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 2
- 239000005751 Copper oxide Substances 0.000 claims description 2
- 229920000881 Modified starch Polymers 0.000 claims description 2
- 239000004368 Modified starch Substances 0.000 claims description 2
- 239000010883 coal ash Substances 0.000 claims description 2
- 229910000431 copper oxide Inorganic materials 0.000 claims description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000004898 kneading Methods 0.000 claims description 2
- 235000019426 modified starch Nutrition 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- -1 oxide Substances 0.000 claims description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 2
- 239000012257 stirred material Substances 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 125000000524 functional group Chemical group 0.000 abstract description 3
- 239000012855 volatile organic compound Substances 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 abstract description 2
- 239000003344 environmental pollutant Substances 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000011280 coal tar Substances 0.000 description 3
- 239000011269 tar Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J27/195—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with vanadium, niobium or tantalum
- B01J27/198—Vanadium
-
- 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
-
- 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
The invention belongs to the technical field of catalysts and production, and particularly relates to a desulfurization and denitrification carbon-based catalyst and a preparation method thereof. The carbon-based catalyst comprises the following main raw materials in percentage by mass: anthracite or weakly caking coal: 40-70 parts of; 25-35 parts of coking coal; 0-20 parts of coke powder; 4-10 parts of asphalt; 2-5 of coal gangue or converter steel slag; 0-3 of oxide; 1-10 parts of a binder; 8-35 parts of water. The preparation method comprises the following steps: grinding, proportioning, stirring, shaping, drying, charring and activating. The organic binder is added to replace tar, so that the discharge of VOCs gas in the preparation process is reduced, and the environmental pollution is reduced; and reduces the harm to the body of the worker during the processing. The added sodium humate has a complex structure and multiple functional groups, so that the formed carbon-based catalyst has high reaction activity and strong adsorption performance, and has stronger adsorption capacity. The addition of the coal gangue or the converter steel slag saves energy and improves the strength and the denitration value of the carbon-based catalyst.
Description
Technical Field
The invention belongs to the technical field of catalysts and production, and particularly relates to a desulfurization and denitrification carbon-based catalyst and a preparation method thereof.
Background
SO emitted during combustion of fossil fuels2And Nitrogen Oxides (NO)x) Is the main reason of acid rain and photochemical smog in journey, the discharge amount of the waste water is seriously beyond the bearing limit value of the atmospheric environment, thereby causing serious damage to the ecological environment and bringing huge economic damage to human beings. Since the seventies of the last century, researchers began to research SO in industrial flue gas on the basis of the control technology of flue gas pollutants discharged by fossil fuel combustion for many years2And NOxAnd simultaneously, researching a removal technology.
The technology for integrally removing various pollutants in the flue gas by using the active coke drying method is a flue gas pollutant treatment technology which is widely popularized by the state at present, as the resource utilization of SO2 can be realized, no water is consumed in the whole process, and no secondary pollutants exist.
The activated coke is an adsorbing material with high comprehensive strength (pressure resistance, abrasion resistance and impact resistance) and small specific surface area than the activated carbon. Compared with activated carbon, the activated coke has better desulfurization and denitration performances, and in the using process, the heating regeneration is equivalent to the reactivation of the activated coke, and the desulfurization and denitration performances are increased. The active coke is a novel adsorption material produced by taking coal as a raw material. At present, the industrially applicable active coke is columnar active coke with the diameter of 8mm, and the production process comprises the following steps: raw material coal → grinding → stirring → shaping → carbonization → activation → product. The patent application No. 200610017059.7 discloses a production method of desulfurization denitration dedusting active coke, which is to process the active coke according to 70-82% of coal powder, 15-25% of coal tar and 3-5% of water-based emulsifier.
At present, coal tar is still generally adopted as a forming binder for preparing activated coke, and the coal tar is listed as a dangerous chemical, so that the problem of serious VOCS pollution exceeding standard in the production and use processes is solved.
China is under pressure to simultaneously reduce the emission of various pollutants such as sulfur dioxide, nitrogen oxides, dioxin, heavy metals and the like. The dry method integrated method of the active coke/carbon-based catalyst can simultaneously remove various pollutants, and can be widely applied to the steel and coking industries as by-product of sulfuration chemical products. The desulfurization and denitrification rate of the carbon-based catalyst is higher than that of common active coke.
Disclosure of Invention
The invention aims to provide a desulfurization and denitrification carbon-based catalyst which has good denitrification performance and is beneficial to environmental protection.
The invention also aims to provide a preparation method of the desulfurization and denitrification carbon-based catalyst, which contributes to environmental protection, energy conservation and emission reduction and can improve desulfurization and denitrification performances.
The invention is realized by the following technical scheme:
the desulfurization and denitrification carbon-based catalyst provided by the invention comprises the following main raw materials in percentage by mass: anthracite or weakly caking coal: 40-70 parts of; 25-35 parts of coking coal; 0-20 parts of coke powder; 4-10 parts of asphalt; 2-5 of coal gangue or converter steel slag; 0 to 3 of oxide; 1-10 parts of a binder; 8-35 parts of water.
The content of vanadium in the coal gangue is 0.2-2%. The main component of the coal gangue is Al2O3、SiO2And in addition, Fe in different quantities2O3、CaO、MgO、Na2O、K2O、P2O5、SO3And trace rare elements (gallium, vanadium, titanium, cobalt). Wherein P is2O5Has the advantages of high denitration activity, high stability and the like. The coal gangue can also improve the strength of the desulfurization and denitrification carbon-based catalyst.
The converter steel slag contains 0.1-3% of vanadium. The converter steel slag with 0.1-3% of vanadium content can also improve the denitration rate. The converter slag is one of three wastes in the steel industry, the utilization rate of the converter slag is only 50 percent in China, and the difference with developed countries is large2O51-3% of vanadium content (V) in the vanadium-containing coal gangue2O5About 1%) is high, and if the slag is directly treated in a mode of treating common converter slag, a great resource waste is caused.
In order to avoid pollution to the environment and harm to the body caused by adding tar in the preparation process of the desulfurization and denitrification carbon-based catalyst, the binder is modified starch, and the adding amount is 1-10 of the mass ratio of the raw materials.
The binder can also be sodium humate, and the addition amount is 2-6 of the mass ratio of the raw materials.
The binder is humic acid which is prepared from 1-2 parts by weight: adding 100-200 mass solid-liquid ratio into 1-3% alkali liquor, reacting at 80-100 deg.C to obtain liquid binder, wherein the addition amount is 10-30 mass ratio of raw materials. Therefore, the cost is lower, and can be reduced by more than 50% compared with the cost of directly adding sodium humate.
The oxide is zinc oxide or ferric oxide.
The oxide is copper oxide or manganese oxide.
The caking index of the coking coal is 55-95; the smokeless coal ash is 4-12 wt%.
The preparation method of the desulfurization and denitrification carbon-based catalyst comprises the following steps of A grinding: grinding anthracite fine powder or weakly sticky fine powder, coking coal, coke powder, asphalt, coal gangue or converter steel slag to powder with the particle size of 150-mesh and 200-mesh; b, stirring: according to the following mass ratio: (40-70): (25-35): (0-20): (4-10): (2-5): (0-3): (1-10): (8-35) uniformly stirring anthracite or weakly caking coal, coking coal, coke powder, asphalt, coal gangue or converter steel slag, oxide, binder and water in a kneading machine; c, forming: molding the uniformly stirred material by using an oil press or a granulator to obtain material strips; d, drying: drying the formed material strips in a drying furnace until the moisture is 3-4; e, carbonizing: carbonizing at 600-800 deg.c for 0.5-2 hr to obtain carbonized material; f, activation: directly feeding the carbonized material into an activation furnace, activating for 0.5-3 hours at the temperature of 800-950 ℃ by using water vapor as an activation medium, and obtaining the desulfurization and denitrification carbon-based catalyst.
According to the invention, the organic binder is added to replace tar, so that the discharge of VOCs gas in the preparation process is reduced, and the environmental pollution is reduced; and the harm of the active coke to the body of a worker in the processing process is reduced. The sodium humate is a relatively stable natural macromolecular organic matter with an aromatic structure, is connected by sparse aromatic rings to form a sparse network structure, has a plurality of void pores with different sizes, has high reaction activity and strong adsorption performance due to a complex structure and a plurality of functional groups, and enables the formed desulfurization and denitrification carbon-based catalyst to have stronger adsorption capacity. The invention saves energy by adding the coal gangue or the converter steel slag and improves the denitration rate.
Detailed Description
The technical solution and effects of the present invention will be further described below by specific examples.
Examples
The list of 8 examples is as follows:
TABLE 1
Table 1 shows the composition ratios of the raw materials.
The liquid binder in the table is humic acid according to the proportion of 1-2: 100-200 mass solid-liquid ratio is added into 1-3% alkali liquor to react for 30-60 minutes at 80-100 ℃ to generate liquid binder. According to the invention, tar is not added, so that the discharge of VOCs gas in the preparation process is reduced, and the environmental pollution is reduced; the harm to the body of a worker in the production process is reduced. The sodium humate has a complex structure and multiple functional groups, so that the sodium humate has high reaction activity and strong adsorption performance, and the formed desulfurization and denitrification carbon-based catalyst has stronger adsorption capacity. Liquid binders are less costly than other solid binders. The coal gangue or the converter steel slag is added into the raw materials, so that the activity and the strength of the desulfurization and denitrification carbon-based catalyst are improved. The waste is utilized, and the energy is saved.
TABLE 2
TABLE 3
Claims (10)
1. The desulfurization and denitrification carbon-based catalyst is characterized in that the main raw materials of the carbon-based catalyst comprise the following components in percentage by mass: anthracite or weakly caking coal: 40-70 parts of; 25-35 parts of coking coal; 0-20 parts of coke powder; 4-10 parts of asphalt; 2-5 of coal gangue or converter steel slag; 0-3 of oxide; 1-10 parts of a binder; 8-35 parts of water.
2. The desulfurization and denitrification carbon-based catalyst according to claim 1, wherein the coal gangue contains vanadium in an amount of 0.2-2%.
3. The carbon-based catalyst for desulfurization and denitrification according to claim 1, wherein the content of vanadium in the converter steel slag is 0.1-3%.
4. The desulfurization and denitrification carbon-based catalyst according to claim 1, wherein the binder is modified starch, and the addition amount is 1-10 of the mass ratio of the raw materials.
5. The desulfurization and denitrification carbon-based catalyst according to claim 1, wherein the binder is sodium humate, and the addition amount is 2-6 of the mass ratio of the raw materials.
6. The carbon-based catalyst for desulfurization and denitrification according to claim 1, wherein the binder is humic acid (1-2): adding 100-200 mass solid-liquid ratio into 1-3% alkali liquor to react to generate liquid binder, wherein the addition amount is 10-30 mass ratio of the raw materials.
7. The carbon-based catalyst for desulfurization and denitrification according to claim 1, wherein the oxide is zinc oxide or ferric oxide.
8. The carbon-based catalyst for desulfurization and denitrification according to claim 1, wherein the oxide is copper oxide or manganese oxide.
9. The desulfurization and denitrification carbon-based catalyst according to claim 1, wherein the coking coal has a caking index of 55 to 95; the smokeless coal ash is 4-12 wt%.
10. The method for preparing a carbon-based catalyst for desulfurization and denitrification according to claim 1 or 10, comprising the steps of: a, grinding: crushing the anthracite fine powder or weakly sticky fine powder, coking coal, coke powder, asphalt, coal gangue or converter steel slag to powder with the granularity of 150 meshes and 200 meshes; b, stirring: according to the following mass ratio: (40-70): (25-35): (0-20): (4-10): (2-5): (0-3): (1-10): (8-35) uniformly stirring anthracite or weakly caking coal, coking coal, coke powder, asphalt coal gangue or converter steel slag, oxide, binder and water in a kneading machine; c, forming: molding the uniformly stirred material by using an oil press or a granulator to obtain material strips; d, drying: drying the formed material strips in a drying furnace until the moisture content is 3-4; e, carbonizing: carbonizing at 600-800 deg.C for 0.5-2 hr to obtain carbonized material, activating: the carbonized material is directly put into an activation furnace to be activated at the temperature of 800-950 ℃, the medium is water vapor, and the activation lasts for 0.5-3 hours, so that the desulfurization and denitrification active coke is obtained.
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| CN102674341A (en) * | 2012-05-14 | 2012-09-19 | 李钱胜 | Columnar activated carbon based on coal pitch binders and preparation method of columnar activated carbon |
| CN109499332A (en) * | 2018-12-05 | 2019-03-22 | 萍乡市华星环保工程技术有限公司 | Industrial smoke dry type high efficiency desulfurization denitration method |
| CN109966853A (en) * | 2019-04-04 | 2019-07-05 | 安徽工业大学 | A kind of compound solid waste matrix activated carbon and preparation method thereof for flue gas desulfurization and denitrification |
| CN112408388A (en) * | 2020-11-11 | 2021-02-26 | 中冶南方都市环保工程技术股份有限公司 | Preparation method of activated coke with high denitration performance |
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2022
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Patent Citations (7)
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|---|---|---|---|---|
| JPH11555A (en) * | 1997-06-11 | 1999-01-06 | Sumitomo Heavy Ind Ltd | Desulfurizing and denitrating agent |
| CN101993066A (en) * | 2010-02-11 | 2011-03-30 | 赵建勋 | Desulfurated and denitrated activated coke and preparation method thereof |
| CN102085476A (en) * | 2011-01-13 | 2011-06-08 | 中国海洋大学 | Shaped coal-based SO2 and NO adsorption catalyst and preparation method thereof |
| CN102674341A (en) * | 2012-05-14 | 2012-09-19 | 李钱胜 | Columnar activated carbon based on coal pitch binders and preparation method of columnar activated carbon |
| CN109499332A (en) * | 2018-12-05 | 2019-03-22 | 萍乡市华星环保工程技术有限公司 | Industrial smoke dry type high efficiency desulfurization denitration method |
| CN109966853A (en) * | 2019-04-04 | 2019-07-05 | 安徽工业大学 | A kind of compound solid waste matrix activated carbon and preparation method thereof for flue gas desulfurization and denitrification |
| CN112408388A (en) * | 2020-11-11 | 2021-02-26 | 中冶南方都市环保工程技术股份有限公司 | Preparation method of activated coke with high denitration performance |
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