CN106000456A - Nano wide-temperature-range high-activity novel rare earth denitration catalytic honeycomb material - Google Patents
Nano wide-temperature-range high-activity novel rare earth denitration catalytic honeycomb material Download PDFInfo
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- CN106000456A CN106000456A CN201610418313.8A CN201610418313A CN106000456A CN 106000456 A CN106000456 A CN 106000456A CN 201610418313 A CN201610418313 A CN 201610418313A CN 106000456 A CN106000456 A CN 106000456A
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- 239000000463 material Substances 0.000 title claims abstract description 42
- 230000000694 effects Effects 0.000 title claims abstract description 33
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 24
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 24
- 230000003197 catalytic effect Effects 0.000 title abstract 3
- 239000003054 catalyst Substances 0.000 claims abstract description 71
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 34
- 238000001125 extrusion Methods 0.000 claims abstract description 21
- 238000001354 calcination Methods 0.000 claims abstract description 13
- 239000002808 molecular sieve Substances 0.000 claims abstract description 13
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 239000000314 lubricant Substances 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 7
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 32
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 22
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 20
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims description 18
- 230000001413 cellular effect Effects 0.000 claims description 16
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- 239000011230 binding agent Substances 0.000 claims description 14
- 239000000243 solution Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 14
- 239000011148 porous material Substances 0.000 claims description 13
- 238000002360 preparation method Methods 0.000 claims description 13
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000012752 auxiliary agent Substances 0.000 claims description 11
- 239000000395 magnesium oxide Substances 0.000 claims description 11
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 11
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 11
- 229910021529 ammonia Inorganic materials 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 239000003365 glass fiber Substances 0.000 claims description 10
- 239000004411 aluminium Substances 0.000 claims description 9
- 229920000609 methyl cellulose Polymers 0.000 claims description 9
- 239000001923 methylcellulose Substances 0.000 claims description 9
- 239000003002 pH adjusting agent Substances 0.000 claims description 9
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical group NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 7
- 239000002202 Polyethylene glycol Substances 0.000 claims description 7
- 235000021355 Stearic acid Nutrition 0.000 claims description 7
- 230000001404 mediated effect Effects 0.000 claims description 7
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 7
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 7
- 229920001223 polyethylene glycol Polymers 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 7
- 239000008117 stearic acid Substances 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229920001131 Pulp (paper) Polymers 0.000 claims description 5
- 239000003463 adsorbent Substances 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 claims description 5
- 239000006184 cosolvent Substances 0.000 claims description 4
- 235000006408 oxalic acid Nutrition 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000004480 active ingredient Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 238000004898 kneading Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000001117 sulphuric acid Substances 0.000 claims 1
- 235000011149 sulphuric acid Nutrition 0.000 claims 1
- 229910052720 vanadium Inorganic materials 0.000 abstract description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 2
- 230000032683 aging Effects 0.000 abstract 2
- 239000003546 flue gas Substances 0.000 abstract 2
- 229910000505 Al2TiO5 Inorganic materials 0.000 abstract 1
- SYFDFHQECQGEMR-UHFFFAOYSA-N [V].[W].[W] Chemical compound [V].[W].[W] SYFDFHQECQGEMR-UHFFFAOYSA-N 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 239000000428 dust Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 abstract 1
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 8
- 235000010981 methylcellulose Nutrition 0.000 description 8
- 239000004310 lactic acid Substances 0.000 description 4
- 235000014655 lactic acid Nutrition 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Inorganic materials O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- HGWOWDFNMKCVLG-UHFFFAOYSA-N [O--].[O--].[Ti+4].[Ti+4] Chemical compound [O--].[O--].[Ti+4].[Ti+4] HGWOWDFNMKCVLG-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000002779 inactivation Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- HIVLDXAAFGCOFU-UHFFFAOYSA-N ammonium hydrosulfide Chemical compound [NH4+].[SH-] HIVLDXAAFGCOFU-UHFFFAOYSA-N 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229940105329 carboxymethylcellulose Drugs 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000000415 inactivating effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WKXHZKXPFJNBIY-UHFFFAOYSA-N titanium tungsten vanadium Chemical compound [Ti][W][V] WKXHZKXPFJNBIY-UHFFFAOYSA-N 0.000 description 1
- GFNGCDBZVSLSFT-UHFFFAOYSA-N titanium vanadium Chemical compound [Ti].[V] GFNGCDBZVSLSFT-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J29/78—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J29/7807—A-type
-
- 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
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/64—Pore diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/50—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/92—Dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/92—Dimensions
- B01D2255/9207—Specific surface
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention discloses a nano wide-temperature-range high-activity novel rare earth denitration catalytic honeycomb material. When a wide-temperature-range high-activity rare earth denitration catalyst is prepared, a lubricant, an adhesive, a release agent, a high-activity 4A molecular sieve, kieselguhr, aluminum titanate and the like are added, multi-step material mixing is carried out through a power mixer in sequence, pug mixed to be uniform is subjected to aging, pre-filtering, extruding and secondary aging, and the nano wide-temperature-range high-activity novel rare earth denitration catalytic honeycomb material is prepared through vacuum extrusion molding, drying and calcining. The prepared denitration catalyst can be well suitable for denitration of fixed source boiler flue gas under the working condition of 250 DEG C to 400 DEG C, the activity of the catalyst is superior to that of a conventional vanadium tungsten tungsten denitration catalyst, the catalyst can be well suitable for application to the high-dust flue gas denitration of a current coal-fired unit, and the problem about recycling of a conventional vanadium containing dead catalyst can be reduced or solved.
Description
Technical field
The present invention relates to a kind of rare earth denitrating catalyst, particularly relate to a kind of nanometer width temperature high activity novel rare-earth denitration
Catalyzed honeycomb material.
Background technology
For reducing coal-burning power plant's pollutant discharge amount, on December 2nd, 2015 further, Executive Meeting of the State Council determines entirely
Coal-burning power plant of state implements minimum discharge.For carrying out conference key agreement, Environmental Protection Department, the National Development and Reform Commission, state
Bureau of Energy of family has printed and distributed " implementing in full coal-burning power plant's minimum discharge and reducing energy consumption programme of work ", directs coal-burning power plant concretely and surpasses
Low emission works.
In the progradation of minimum discharge, how to have made overall plans and coordinate energy-conservation, subtract carbon, water saving and other Conventional pollution
Mutual relation between control, is the key conscientiously promoting minimum discharge comprehensive benefit, but this problem the most not yet obtains system
Assessment and overall consideration.At present, the reduction NOx emission method of main flow is, increases by one layer of catalyst, and system so can be caused to hinder
Power, air preheater resistance improve, SO2To SO3Conversion ratio rise, aerosol discharge increase, cause the escaping of ammonia increase, corrosion
And clogging increase etc..Solve to reduce the discharge of nitrogen oxides, avoid the escaping of ammonia and sulfur trioxide row the most as far as possible
Put the phenomenons such as increase, consider that operating cost reduces problem the most again.
Traditional vanadium titanium system denitrating catalyst, active temperature windows narrower (320～400 DEG C), easily by SO in running2
Poisoning, under low temperature, activity is relatively low, and is easily generated sulfur ammonium, and blocking catalyst hole and air preheater and upstream device cause system pressure drop
Relatively big, increase the unfavorable factor such as electric cost of air-introduced machine.Existing patent major part is to be improved from raw material, formula,
Adjust the structural promoter in catalyst, binding agent, the aperture of regulation catalyst, improve the soot-blowing mode etc. of denitrating system, the most not
Can effectively reduce inactivation and the waste catalyst handling problems of catalyst.
Summary of the invention
It is an object of the invention to overcome above-mentioned weak point, it is provided that a kind of this nanometer width temperature high activity novel rare-earth takes off
The preparation method of nitre catalyzed honeycomb material, is particularly well-suited to boiler working condition and changes greatly, and load adjustment coal-burning boiler frequently can have
Effect eliminates the recovery of vanadium-containing wasting catalyst, disposal difficulties.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of nanometer width temperature high activity is novel dilute
Soil denitration catalyst cellular material, it is characterised in that this denitrating catalyst is by following components: nano titanium oxide, kieselguhr, metatitanic acid
Aluminum, magnesium oxide, cerous nitrate, silver nitrate, ammonium metatungstate, lanthana, 4A molecular sieve, alkali-free glass fibre, alumina fibre, help
Agent is mediated through catalyst pug, and catalyst pug is old, catalyst pug extrusion molding, and the wet base of shaping of catalyst is dried, forges
Burning operation is prepared from；In described component, the weight portion of nano titanium oxide is 50～60 parts, kieselguhr is 30～40 parts, titanium
Acid aluminum is 15～20 parts, magnesium oxide is 3～5 parts, cerous nitrate is 3～10 parts, silver nitrate is 1～2 part, ammonium metatungstate is 3～5
Part, lanthana be 3～5 parts, 4A molecular sieve be 10～15 parts, alkali-free glass fibre is 12～15 parts, and alumina fibre is 5～8
Part, auxiliary agent is 3～10 parts.
A kind of nanometer width temperature high activity novel rare-earth denitration catalyst cellular material the most according to claim 1, its
Feature is that described auxiliary agent includes that binding agent, water-retaining agent, lubricant, releasing agent, pore creating material, described binding agent are methylcellulose,
Described water-retaining agent is polyethylene glycol oxide, and described lubricant is stearic acid, and described releasing agent is monoethanolamine, and described pore creating material is wood
Slurry cotton.
As preferably, described auxiliary agent includes that binding agent, water-retaining agent, lubricant, releasing agent, pore creating material, described binding agent are
Methylcellulose, described water-retaining agent is polyethylene glycol oxide；Mean molecule quantity position 360～4,000,000,0.5% solution viscosity is 150
～mPa s, described lubricant is stearic acid, and described releasing agent is monoethanolamine, and described pore creating material is wood pulp cotton.
The preparation method of above-mentioned rare earth denitrating catalyst comprises the following steps:
(1) preparation of living solution: weigh cerous nitrate, silver nitrate in proportion, is warming up to 70～95 DEG C, by the cerous nitrate weighed,
Silver nitrate powder body is dissolved in aqueous solution, and the cerous nitrate, the silver nitrate aqueous solution concentration that are configured are 0.35～1.20g/mL, 60 DEG C of guarantors
Temperature is standby；
(2) pug is mediated: i) weighs nano titanium oxide 25～30 parts, adds lanthana, kieselguhr, aluminium titanates, 4A wherein
Molecular sieve, lubricant, adsorbent；Regulate pug pH the deionized water added with 20% ammonia, allow powder account for the ratio of gross weight
Being 0.4～0.6, about 20min is mediated in stirring, in kneading process, by adding a small amount of deionized water, pH adjusting agent, regulates mud
Material moisture target value, pH desired value；
Ii) secondary weighs 25～30 parts of TiO and adds to the pug obtained by step i), then add ammonium metatungstate, a small amount of pH adjusts
Joint agent and deionized water, regulate pug pH desired value, cover blender top cover, be heated to more than 95 DEG C while stirring, so
After open top cover, evaporation and concentration pug moisture, regulation pug moisture target value is in granular form to pug；
Add alkali-free glass fibre, alumina fibre, magnesium oxide, 1～3 part of pore creating material, step 1) institute the most successively
The living solution prepared, then add a small amount of pH adjusting agent, deionized water, regulate pug moisture target value, pH desired value, stirring
About 15min；
Iv) add a small amount of binding agent and water-retaining agent and releasing agent, then add a small amount of pH adjusting agent, deionized water, regulate pug
Moisture target value, pH desired value, stir more than 10min；
V) secondary adds binding agent and water-retaining agent, then adds a small amount of pH adjusting agent, deionized water, regulation pug moisture target value,
PH desired value, stirs more than 10min；
(3) the oldest: the pug that will mix, seal with the woven bag of band plastic lining thin film and preserve, old；
(4) pre-filtering extrusion: by old good pug, on pre-filtering extruder, filters and is extruded into adobe.
(5) secondary is old: adobe step (4) prepared, secondary is old；
(6) molding extrusion: in front end equipped with carrying out extrusion molding on the vacuum-extruder of SCR mould, obtain that there is porous
Matrix arrangement, the wet base of shaping of catalyst of elongated tubular；
(7) it is dried-calcines: the wet base of shaping of catalyst that step (6) is obtained, be transferred on aluminium alloy pallet, with band sponge
The lid of glass steel material packages, after carrying out redrying, then the calcining of row kiln.
(8) cutting, end face hardening: the finished catalyst that step (7) is calcined out is carried out measured length cutting, puts into end face
Hardening bath carries out end face hardening, finally gives nanometer width temperature high activity novel rare-earth denitration catalyst cellular material.
As preferably, described carrier nano titanium oxide is Detitanium-ore-type.
As preferably, described product physical dimension is 150x150x(500～1250) mm, aperture is 5～8mm, interior wall thickness
0.7～1.2mm, geometric proportion surface area is 360～700m2/m3。
As preferably, containing cosolvent oxalic acid in described aqueous solution.
As preferably, described pH adjusting agent is the ammonia of 20% volumetric concentration.
As preferably, the pug described in described step (2) mediates (i) pug moisture target value 38～45%, pH desired value
7.8～9.4；Described pug mediates (ii) pug moisture target value 25～28%, pH desired value 7.8～8.5；Described pug
Mediate (iii) pug moisture target value 29～34%, pH desired value 8.1～9.2；Described pug mediates (iv) pug moisture mesh
Scale value 29～34%, pH desired value 8.1～9.2.
As preferably, the pug described in described step (2) mediates (v) pug moisture target value 28～32%, pH desired value
8.1～9.0, extrusion force plasticity 1700～2200N.
As preferably, in described step (3), the oldest more than 24h.
As preferably, in described step (4), pre-filtering extruder filter screen use mesh specification be 1.0x4mm or
The stainless steel filtering net of 0.8x3mm.
As preferably, in described step (5), secondary old time more than 24h.
As preferably, in described step (6), front end equipped with the vacuum-extruder control condition of mould is: extrusion pressure
Power 3～6MPa, extrusion temperature ＜ 35 DEG C, vacuum-0.093～0.095MPa.
As preferably, in described step (7), controlling temperature and be incremented by by gradient from 25～60 DEG C, humidity presses ladder from 95～20%
Degree successively decreases and carries out primary drying；Catalyst blank through primary drying carries out redrying, and redrying temperature controls 60
～65 DEG C, arid cycle 10～24h；Catalyst blank after redrying is calcined, calcination process temperature from 110～
600 DEG C are incremented by by gradient, and calcination time is 25～34h.
As preferably, in described step (8), first the hole of catalyst two ends deformation being cut away during cutting, end face hardening bath is adopted
With aluminum sulfate, cerous nitrate, ammonium metatungstate constitute active ingredient solution soak, solution density about 1.26, immerse height 20～
25mm。
Present invention have the advantage that the porous type denitrating catalyst using the method to prepare is applicable to 250～400 DEG C
The denitration of boiler smoke, is particularly well-suited to boiler working condition and changes greatly, and load adjustment coal-burning boiler frequently, its activity is better than routine
Vanadium tungsten titanium system denitrating catalyst, can effectively eliminate the recovery of vanadium-containing wasting catalyst, dispose the unit special permission needing specialty licensed
Managing recycling disposal, the dead catalyst danger of inactivation is useless processes a difficult problem.Additionally, denitrating catalyst prepared by the present invention also may be used after inactivating
With regeneration, the operating cost of denitrating system can be significantly reduced, reduce use cost and process processing cost.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1: rare earth denitrating catalyst is prepared from by following steps:
1. raw material prepares: the present invention is with aluminium titanates, kieselguhr, nano titanium oxide as carrier, with lanthana, CeO2It is main work
Property composition, with magnesium oxide, silver nitrate, alumina fibre, ammonium metatungstate etc. for helping active component, with 4A molecular sieve, alkali-free glass
Fiber, alumina fibre etc. are structural strength reinforcing agent.Wherein the weight portion of nano titanium oxide be 60～70 parts, kieselguhr be
30～40 parts, aluminium titanates be 15～20 parts, magnesium oxide be 3～5 parts, cerous nitrate be 1～2 part, silver nitrate be 3～10 parts, inclined tungsten
Acid ammonium is 3～5 parts, lanthana is 3～5 parts, 4A molecular sieve is 10～15 parts, and alkali-free glass fibre is 12～15 parts, aluminium oxide
Fiber is 5～8 parts, and auxiliary agent is 3～10 parts.
Auxiliary agent auxiliary agent includes binding agent, water-retaining agent, lubricant, releasing agent, pore creating material, adsorbent, wherein with Methyl cellulose
Element is binding agent, with polyethylene glycol oxide as water-retaining agent, with stearic acid as lubricant, with monoethanolamine as releasing agent, with lactic acid be
Adsorbent, with wood pulp cotton as pore creating material.Methylcellulose can be carboxymethyl-cellulose ammonium salt, 1% solution viscosity be 6000～
10000 mPa s；Pore creating material is the additive making to increase in material pore space structure, is generally easily decomposed into the material of gas.As
Starch, ammonium hydrogen carbonate, PMMA microsphere etc..Releasing agent make body surface be prone to depart from, smooth and clean.Such as silicone oil, estersil, poly-second
Glycol, low molecular polyethylene etc..It addition, it is a small amount of to prepare cosolvent oxalic acid, pH adjusting agent ammonia is enough standby.
2. the preparation of living solution: weigh 7 parts of cerous nitrates, 1 part of silver nitrate, be warming up to 70～95 DEG C, add 1 part of cosolvent
Oxalic acid, is dissolved in the cerous nitrate weighed, silver nitrate powder body in aqueous solution, and the cerous nitrate, the silver nitrate solution concentration that are configured are
0.75g/mL, 60 DEG C of insulations are standby.
3. pug is mediated: weigh 25 parts of technical grade nanometer titanium dioxide titanium valves, 40 parts of kieselguhr, 20 parts of aluminium titanates, 3 parts of oxidations
Lanthanum, 10 parts of 4A molecular sieves, 1 part of lubricant stearic acid, 1 part of adsorbent lactic acid, described carrier nano titanium oxide is anatase
Type；4A molecular sieve used is spherical 4A molecular sieve；By deionized water: powder weight ratio is 0.4～0.6, add deionized water, add
Adding pH adjusting agent 20% ammonia, the amount of interpolation is advisable with pug 7.8～9.2, and about 20min is mediated in stirring, prepares pug moisture
About 42%, pH desired value 9.0；Secondary weighs 25 parts of technical grade nanometer titanium dioxide titanium valves, 5 parts of ammonium metatungstates add to preparing
In pug, add 20% ammonia, regulate pug pH value about 8.6, stir to temperature more than 95 DEG C, then evaporation and concentration pug water
Point it is in granular form to pug, pug moisture 26～27.5%, pH value about 8.2；Limit stirring stirring also adds pore creating material wood successively
Cotton 1 part of slurry, alkali-free glass fibre 13 parts, alumina fibre 8 parts, magnesium oxide 5 parts, and the living solution obtained by step 1, and
With 20% ammonia regulation pug pH, stir about 15min, pug moisture 29～32%, pH value 8.5～9.0；Add water-retaining agent polyoxy
Change ethylene 1 part, binding agent methylcellulose 1 part, releasing agent monoethanolamine 1 part, stir more than 10min, obtained pug moisture
29～32%, pH value 8.1～9.2, then add water-retaining agent polyethylene glycol oxide 1 part, binding agent methylcellulose 1 part stirring 10min with
On, obtained pug moisture 28～32%, pH desired value 8.1～9.0, extrusion force plasticity 1700～2200N.
4. pug is old: the pug that will mix, and preserves with the bag weaved sealing of plastic lining thin film, old more than 24h；
By old good pug pre-filtering extruder adobe old more than the 24h of secondary；Pre-filtering extruder filter screen uses mesh rule
Lattice are the stainless steel filtering net of 1.0x4mm or 0.8x3mm.
5. pug extrusion molding: in front end equipped with carrying out extrusion molding on the vacuum-extruder of SCR mould, obtain with
Matrix arrangement mode porous arranges, the wet base of shaping of catalyst of elongated tubular is standby.The SCR mould used is extruded in molding,
Kong Weisi square hole, aperture is 7.1mm, interior wall thickness 1.1mm, square frame wide 156～158mm, hole count 18x18；Front end is equipped with SCR
The vacuum-extruder control condition of mould is: extrusion pressure 3～6MPa, extrusion temperature ＜ 35 DEG C, vacuum-0.093～
0.095MPa。
6. formation wet blank is dried, calcines: by wet for the shaping of catalyst of forming base, is transferred on aluminium alloy pallet, with having
The fiberglass lid of sponge packages and carries out primary drying, controls temperature and is incremented by by gradient from 25～60 DEG C, and humidity is from 95～20%
Successively decrease by gradient, about 12 days primary drying cycles；Redrying temperature controls 60～65 DEG C, arid cycle 10～24h；By secondary
Dried catalyst blank is calcined, calcination process temperature from 110～600 DEG C by gradient be incremented by, calcination time be 25～
34h。
7. cutting and end face hardening: calcining finished catalyst out carries out measured length cutting, and end face hardening, hardening height
Degree 20～25mm.Finally give nanometer width temperature high activity novel rare-earth denitration catalyst cellular material.First catalyst during cutting
The hole of two ends deformation is cut away, and the active ingredient solution that end face hardening bath uses aluminum sulfate, cerous nitrate, ammonium metatungstate to constitute soaks,
Solution density about 1.26, immerses height 20～25mm.The proportioning that end face hardening bath can use is: aluminum sulfate 70～80 parts,
Cerous nitrate is 3～10 parts, ammonium metatungstate is 3～5 parts.
Obtain cavernous denitrating catalyst, the described long 150mm of denitration catalyst agent material, wide 150mm, high 800mm, aperture
For 7.3mm, interior wall thickness 1.1mm.In the stationary source boiler smoke of 250～400 DEG C, the use of 10 months shows, catalyst
Hole is without clogging, and system pressure drop is less, without SO2Intoxicating phenomenon.Under 250 DEG C of low temperature, activity is high, and denitration effect is obvious.Comprehensive meter
Calculate result display processing cost relatively prior art to be greatly lowered.
Embodiment 2
Preparation technology flow process is essentially identical with example 1, and the most each composition and proportioning thereof are as follows: the weight portion of nano titanium oxide is
60 parts, kieselguhr be 35 parts, aluminium titanates be 18 parts, magnesium oxide be 4 parts, cerous nitrate be 9 parts, silver nitrate be 1.5 parts, ammonium metatungstate
Be 5 parts, lanthana be 3 parts, 4A molecular sieve be 12 parts, alkali-free glass fibre be 15 parts, alumina fibre be 8 parts, auxiliary agent is 10
Part, wherein polyethylene glycol oxide becomes 4 parts, methylcellulose 2 parts, stearic acid 1 part, monoethanolamine 1 part, lactic acid 1 part, wood pulp cotton 1
Part, final pug moisture Control is 29～30%.
SCR mould changes circular port into, and aperture is 6.4mm, interior wall thickness 1.0mm, square frame wide 156～158mm, hole
Number 18x18, extrusion pressure 4～about 5.0MPa.
Obtain cavernous denitrating catalyst, the described long 160mm of denitration catalyst agent material, wide 160mm, high 1000mm, hole
Footpath is 6.5mm, interior wall thickness 1.1mm.In the stationary source boiler smoke of 250～400 DEG C, the use of 10 months shows, catalysis
Agent hole is without clogging, and system pressure drop is less, without SO2Intoxicating phenomenon.Under 250 DEG C of low temperature, activity is high, and denitration effect is obvious.Comprehensively
Result of calculation display processing cost relatively prior art is greatly lowered.
Embodiment 3
Preparation technology flow process is essentially identical with example 1, and the most each composition and proportioning thereof are as follows: the weight portion of nano titanium oxide is
55 parts, kieselguhr be 30 parts, aluminium titanates be 15 parts, magnesium oxide be 3 parts, cerous nitrate be 4 parts, silver nitrate be 2 parts, ammonium metatungstate be
3 parts, lanthana be 3 parts, 4A molecular sieve be 12 parts, alkali-free glass fibre 12 parts, alumina fibre be 5 parts, auxiliary agent is 5 parts, its
Middle methylcellulose 1.7 parts, polyethylene glycol oxide 1 part, stearic acid 1 part, monoethanolamine 0.5 part, lactic acid 0.3 part, wood pulp cotton 0.5
Part.
SCR mould changes six shape holes into, and aperture is 6.6mm, interior wall thickness 1.0mm, square frame wide 156～158mm, hole
Number 18x18, extrusion pressure 5.6MPa.
Obtain cavernous denitrating catalyst, the described long 139mm of denitration catalyst agent material, wide 139mm, high 1250mm, hole
Footpath is 6.7mm, interior wall thickness 1.0mm.In the stationary source boiler smoke of 250～400 DEG C, the use of 10 months shows, catalysis
Agent hole is without clogging, and system pressure drop is less, without SO2Intoxicating phenomenon.Under 250 DEG C of low temperature, activity is high, and denitration effect is obvious.Comprehensively
Result of calculation display processing cost relatively prior art is greatly lowered.
Claims (10)
1. a nanometer width temperature high activity novel rare-earth denitration catalyst cellular material, it is characterised in that this denitrating catalyst by with
Lower component: nano titanium oxide, kieselguhr, aluminium titanates, magnesium oxide, cerous nitrate, silver nitrate, ammonium metatungstate, lanthana, 4A divide
Son sieve, alkali-free glass fibre, alumina fibre, auxiliary agent are mediated through catalyst pug, and catalyst pug is old, catalyst pug
Extrusion molding, the wet base of shaping of catalyst is dried, calcination process is prepared from；In described component, the weight portion of nano titanium oxide
Be 60～70 parts, kieselguhr be 30～40 parts, aluminium titanates be 15～20 parts, magnesium oxide be 3～5 parts, cerous nitrate be 3～10 parts,
Silver nitrate is 1～2 part, ammonium metatungstate is 3～5 parts, lanthana is 3～5 parts, 4A molecular sieve is 10～15 parts, and alkali-free glass is fine
Dimension is 12～15 parts, and alumina fibre is 5～8 parts, and auxiliary agent is 3～10 parts.
A kind of nanometer width temperature high activity novel rare-earth denitration catalyst cellular material the most according to claim 1, its feature
It is that described auxiliary agent includes that binding agent, water-retaining agent, lubricant, releasing agent, pore creating material, described binding agent are methylcellulose, described
Water-retaining agent is polyethylene glycol oxide, and described lubricant is stearic acid, and described releasing agent is monoethanolamine, and described pore creating material is wood pulp
Cotton.
3. prepare a nanometer width temperature high activity novel rare-earth denitration catalyst cellular material preparation method described in claim 2,
It is characterized in that the method comprises the following steps:
(1) pug is mediated:
Take nano titanium oxide, kieselguhr, aluminium titanates, lanthana, ammonium metatungstate, 4A molecular sieve, lubricant, adsorbent, use
20% ammonia regulation pug pH, and the deionized water stirring added, in stirring kneading process, add alkali-free glass fibre, aluminium oxide
Fiber, magnesium oxide, pore creating material, cerous nitrate, silver nitrate aqueous solution, then add binding agent and water-retaining agent and releasing agent, pass through simultaneously
Evaporate and add deionized water, pH adjusting agent regulates pug moisture target value, pH desired value；
(2) old: the pug that will mix, seal with the woven bag of band plastic lining thin film and preserve, old；
(3) pre-filtering extrusion: by old good pug, on pre-filtering extruder, filters and is extruded into adobe, adobe is carried out two
Secondary old；
(4) molding extrusion: adobe is put into front end equipped with carrying out extrusion molding on the vacuum-extruder of mould, be catalyzed
Agent formation wet blank；
(5)-calcining it is dried: by wet for shaping of catalyst base, be transferred on aluminium alloy pallet, with the glass steel material of band sponge
Lid packages, after being dried, then the calcining of row kiln；Calcining finished catalyst out carries out measured length cutting, puts into end
Face hardening bath carries out end face hardening, finally gives nanometer width temperature high activity novel rare-earth denitration catalyst cellular material.
A kind of nanometer width temperature high activity novel rare-earth denitration catalyst cellular material the most according to claim 1, its feature
Be described carrier nano titanium oxide be Detitanium-ore-type.
A kind of nanometer width temperature high activity novel rare-earth denitration catalyst cellular material preparation side the most according to claim 3
Method, is characterized in that in described cerous nitrate, silver nitrate aqueous solution containing cosolvent oxalic acid.
A kind of nanometer width temperature high activity novel rare-earth denitration catalyst cellular material preparation side the most according to claim 3
Method, is characterized in that the ammonia that described pH adjusting agent is 20% volumetric concentration.
A kind of nanometer width temperature high activity novel rare-earth denitration catalyst cellular material preparation side the most according to claim 3
Method, is characterized in that the pug described in described step (2) mediates pug moisture target value 28～32%, pH desired value 8.1～9.0.
A kind of nanometer width temperature high activity novel rare-earth denitration catalyst cellular material preparation side the most according to claim 3
Method, is characterized in that in described step (3), the oldest more than 24h；In described step (4), pre-filtering extruder filter screen uses net
Hole gauge lattice are the stainless steel filtering net of 1.0x4mm or 0.8x3mm；In described step (3), secondary old time more than 24h, described
In step (4), described front end equipped with the vacuum-extruder control condition of mould is: extrusion pressure 3～6MPa, extrusion temperature
＜ 35 DEG C, vacuum-0.093～0.095MPa.
A kind of nanometer width temperature high activity novel rare-earth denitration catalyst cellular material preparation side the most according to claim 3
Method, is characterized in that in described step (5), controls temperature and is incremented by by gradient from 25～60 DEG C, and humidity is successively decreased by gradient from 95～20%
Carry out primary drying；Catalyst blank through primary drying carries out redrying, and redrying temperature controls 60～65 DEG C,
Arid cycle 10～24h；Being calcined by catalyst blank after redrying, calcination process temperature presses ladder from 110～600 DEG C
Degree is incremented by, and calcination time is 25～34h.
A kind of nanometer width temperature high activity novel rare-earth denitration catalyst cellular material preparation side the most according to claim 3
Method, is characterized in that in described step (5), first the hole of catalyst two ends deformation is cut away during cutting, and end face hardening bath uses sulphuric acid
The active ingredient solution that aluminum, cerous nitrate, ammonium metatungstate are constituted soaks, solution density about 1.26, immerses height 20～25mm.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107694558A (en) * | 2017-09-30 | 2018-02-16 | 湖北神雾热能技术有限公司 | A kind of SCR catalyst for having denitration heat accumulation function concurrently and preparation method thereof |
| CN107824025A (en) * | 2017-12-14 | 2018-03-23 | 马鞍山松鹤信息科技有限公司 | A kind of novel denitration material and its preparation technology |
| CN108126692A (en) * | 2017-12-28 | 2018-06-08 | 凯龙蓝烽新材料科技有限公司 | Good automobile-used extruded type SCR denitration of a kind of low temperature active and preparation method thereof |
| CN108311156A (en) * | 2018-02-01 | 2018-07-24 | 广州市新稀冶金化工有限公司 | Based on nano rare-earth hydrosol without alum denitrating catalyst and preparation method thereof |
| CN108341665A (en) * | 2017-12-09 | 2018-07-31 | 湖北神雾热能技术有限公司 | A kind of low-temperature catalyzed denitration of rare-earth-based, accumulation of heat one composite ceramic material |
| CN110237839A (en) * | 2019-05-27 | 2019-09-17 | 内蒙古希捷环保科技有限责任公司 | Low-temperature flue gas honeycomb type denitrification catalyst and preparation method thereof in rare-earth base |
| CN114433251A (en) * | 2022-01-27 | 2022-05-06 | 浙江大学 | Method for improving mechanical property of low-temperature dioxin degradation catalyst |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209117A (en) * | 2014-09-16 | 2014-12-17 | 东营信拓汽车消声器有限公司 | Preparation method of high-strength and antioxidant rare-earth-based smoke denitration catalyst |
| CN104841489A (en) * | 2015-05-29 | 2015-08-19 | 山东爱亿普环保科技有限公司 | Rare-earth-based composite multi-component denitration and dioxin-removing catalyst and preparation method thereof |
-
2016
- 2016-06-15 CN CN201610418313.8A patent/CN106000456A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209117A (en) * | 2014-09-16 | 2014-12-17 | 东营信拓汽车消声器有限公司 | Preparation method of high-strength and antioxidant rare-earth-based smoke denitration catalyst |
| CN104841489A (en) * | 2015-05-29 | 2015-08-19 | 山东爱亿普环保科技有限公司 | Rare-earth-based composite multi-component denitration and dioxin-removing catalyst and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 樊新民等: "《工程陶瓷及其应用》", 31 July 2006, 机械工业出版社 * |
| 胡将军等: "《燃煤电厂烟气脱硝催化剂》", 31 January 2014, 中国电力出版社 * |
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|---|---|---|---|---|
| CN107694558A (en) * | 2017-09-30 | 2018-02-16 | 湖北神雾热能技术有限公司 | A kind of SCR catalyst for having denitration heat accumulation function concurrently and preparation method thereof |
| CN108341665A (en) * | 2017-12-09 | 2018-07-31 | 湖北神雾热能技术有限公司 | A kind of low-temperature catalyzed denitration of rare-earth-based, accumulation of heat one composite ceramic material |
| CN107824025A (en) * | 2017-12-14 | 2018-03-23 | 马鞍山松鹤信息科技有限公司 | A kind of novel denitration material and its preparation technology |
| CN108126692A (en) * | 2017-12-28 | 2018-06-08 | 凯龙蓝烽新材料科技有限公司 | Good automobile-used extruded type SCR denitration of a kind of low temperature active and preparation method thereof |
| CN108311156A (en) * | 2018-02-01 | 2018-07-24 | 广州市新稀冶金化工有限公司 | Based on nano rare-earth hydrosol without alum denitrating catalyst and preparation method thereof |
| CN110237839A (en) * | 2019-05-27 | 2019-09-17 | 内蒙古希捷环保科技有限责任公司 | Low-temperature flue gas honeycomb type denitrification catalyst and preparation method thereof in rare-earth base |
| CN114433251A (en) * | 2022-01-27 | 2022-05-06 | 浙江大学 | Method for improving mechanical property of low-temperature dioxin degradation catalyst |
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