CN105521806A - SCR flue gas denitration catalyst and preparation method thereof - Google Patents

SCR flue gas denitration catalyst and preparation method thereof Download PDF

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CN105521806A
CN105521806A CN201510917159.4A CN201510917159A CN105521806A CN 105521806 A CN105521806 A CN 105521806A CN 201510917159 A CN201510917159 A CN 201510917159A CN 105521806 A CN105521806 A CN 105521806A
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flue gas
catalyst
sic
carrier
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李林朝
刘江峰
徐辉
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Anhui Yuanchen Environmental Protection Science and Technology Co Ltd
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    • 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
    • B01J27/20—Carbon compounds
    • B01J27/22—Carbides
    • B01J27/224—Silicon carbide
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/20—Vanadium, niobium or tantalum
    • B01J23/22—Vanadium
    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24—Chromium, molybdenum or tungsten
    • B01J23/30—Tungsten
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B01D2255/2065—Cerium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20715—Zirconium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20723—Vanadium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20776—Tungsten

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Abstract

The invention relates to a SCR flue gas denitration catalyst and belongs to the technical field of flue gas denitration. The SCR flue gas denitration catalyst comprises a carrier, an active component and an auxiliary material. The carrier comprises, by weight, 45-65 parts of silicon carbide and 15-30 parts of aluminium oxide. The active component comprises, by weight, 3-10 parts of tungsten trioxide, 1.5-2.5 parts of vanadium pentoxide, 1-4 parts of cerium dioxide and 1-5 parts of zirconium dioxide. The auxiliary material comprises, by weight, 1-5 parts of glass fiber, 1-5 parts of paper pulp cotton, 1-4 parts of stearic acid and 1-3 parts of polyoxyethylene. According to the technical scheme, silicon carbide and aluminium oxide are a SiC-Al2O3 composite carrier prepared by a sol-gel method. The composite carrier can be used to effectively raise specific surface area of the catalyst, increase high temperature tolerance of the catalyst and widen operating temperature window of the catalyst. Beneficial effects are remarkable. The invention also provides a preparation method of the above denitration catalyst. The denitration catalyst produced by the method has large specific surface area and high denitration rate, and has a wide market prospect.

Description

A kind of SCR catalyst for denitrating flue gas and preparation method thereof
Technical field
The present invention relates to a kind of SCR catalyst for denitrating flue gas, and the preparation method of this catalyst, belong to gas denitrifying technology field.
Background technology
Along with the national economic development, population increase and the quickening of urbanization process, problem of environmental pollution highlights day by day, especially SO 2and NO xemission problem.NO xthe environmental problems such as acid rain, photochemical fog, surface water eutrophication can be caused, and can harm humans healthy, therefore take safeguard procedures very urgent for it.Current denitration efficiency technology that is the highest, maturation the most is SCR (SCR) technology, and the active component in this technology dependence catalyst is by NO xcatalytic reduction is free of contamination N 2, thus reach the object purified air.
Be conventionally used to the catalytic activity temperature of SCR denitration roughly between 300 DEG C ~ 430 DEG C, higher denitration rate can be kept in this temperature range, but, when temperature is higher than 500 DEG C, existing catalyst ubiquity specific area reduces serious, denitration efficiency is low, the problem that service life is short, and the catalyst that part is applicable to hot environment to there is specific surface equally less, the problem that denitration efficiency is undesirable, therefore, a kind of denitrating catalyst having bigger serface and high denitration rate under the high temperature conditions concurrently is researched and developed significant.
Summary of the invention
For solving problems of the prior art, the invention provides a kind of SCR catalyst for denitrating flue gas, concrete technical scheme is as follows:
A kind of SCR catalyst for denitrating flue gas, described SCR catalyst for denitrating flue gas comprises carrier, active component and auxiliary material, wherein carrier comprises 45 parts ~ 65 parts, carborundum, alundum (Al2O3) 15 parts ~ 30 parts, active component comprises tungstic acid 3 parts ~ 10 parts, vanadic anhydride 1.5 parts ~ 2.5 parts, ceria 1 part ~ 4 parts, zirconium dioxide 1 part ~ 5 parts, and auxiliary material comprises 1 part ~ 5 parts, glass fibre, cotton 1 part ~ 5 parts of paper pulp, stearic acid 1 part ~ 4 parts, polyethylene glycol oxide 1 part ~ 3 parts.
As the improvement of technique scheme, described carborundum and alundum (Al2O3) are SiC-Al 2o 3complex carrier.
As the improvement of technique scheme, the nanometer silicon carbide of described carborundum to be particle size range be 10nm ~ 50nm, the nanometer γ-Al of described alundum (Al2O3) to be particle size range be 20nm ~ 30nm 2o 3.
As the improvement of technique scheme, in described SCR catalyst for denitrating flue gas, the weight fraction of carborundum content is 55 parts ~ 65 parts, and alundum (Al2O3) content is 18 parts ~ 30 parts, and tungstic acid content is 4 parts ~ 8 parts, ceria content is 2 parts ~ 4 parts, and zirconium dioxide content is 2 parts ~ 5 parts.
In technique scheme, carborundum and alundum (Al2O3) are the SiC-Al adopting sol-gal process to prepare 2o 3complex carrier, this complex carrier effectively can improve the specific area of catalyst, adds the high temperature resistance of catalyst, and widened the operating temperature window of catalyst, beneficial effect is remarkable.
Present invention also offers a kind of preparation method of above-mentioned SCR catalyst for denitrating flue gas, comprise two steps: step one, the preparation of carrier; Step 2, the preparation of catalyst;
In described step one, first anion surfactant is mixed with nano grade Sic particle and disperse, recycling Al 2o 3colloidal sol carries out surface coating modification to SiC particle, obtains SiC-Al 2o 3composite particles, and prepare SiC-Al 2o 3complex carrier;
In described step 2, by SiC-Al 2o 3complex carrier and active component mixing, through pre-extruded, old, extrude, primary drying, redrying, roasting, obtain SCR catalyst for denitrating flue gas product.
As the improvement of technique scheme, in described step one, described anion surfactant is lauryl sodium sulfate or neopelex.
As the improvement of technique scheme, in described step one, to SiC-Al 2o 3add ceria and zirconium dioxide in composite particles, add sodium borohydride, washing, oven dry, roasting obtain SiC-Al 2o 3complex carrier.
First technique scheme improves dispersiveness and the surface characteristic of SiC by anion surfactant, recycling Al 2o 3colloidal sol carries out surface coating modification to SiC particle, improves the dispersiveness of SiC nano powder further, obtains the larger SiC-Al of specific surface after stirring drying 2o 3complex carrier, then active constituent loading is carried out to carrier, after testing, under 600 DEG C of hot environments, denitration efficiency reaches more than 85% to the SCR catalyst for denitrating flue gas product obtained, and specific area is 85m 2/ g, higher than general vanadium tungsten titanium catalyst, and is obviously greater than simple SiC and does high temperature catalyst prepared by carrier, thus have the beneficial effect of Large ratio surface sum NO_x Reduction by Effective under realizing hot conditions concurrently.
Detailed description of the invention
The invention provides a kind of SCR catalyst for denitrating flue gas, described SCR catalyst for denitrating flue gas comprises carrier, active component and auxiliary material, wherein carrier comprises 45 parts ~ 65 parts, carborundum, alundum (Al2O3) 15 parts ~ 30 parts, active component comprises tungstic acid 3 parts ~ 10 parts, vanadic anhydride 1.5 parts ~ 2.5 parts, ceria 1 part ~ 4 parts, zirconium dioxide 1 part ~ 5 parts, auxiliary material comprises 1 part ~ 5 parts, glass fibre, cotton 1 part ~ 5 parts of paper pulp, stearic acid 1 part ~ 4 parts, polyethylene glycol oxide 1 part ~ 3 parts, and wherein carborundum and alundum (Al2O3) are the SiC-Al adopting sol-gal process to prepare 2o 3complex carrier, this complex carrier effectively can improve the specific area of catalyst, adds the high temperature resistance of catalyst, has widened the operating temperature window of catalyst.
In order to improve the dispersion effect of carborundum and alundum (Al2O3), in technique scheme, carborundum can adopt particle size range to be the nanometer silicon carbide of 10nm ~ 50nm, and alundum (Al2O3) can adopt particle size range to be the nanoscale γ-Al of 20nm ~ 30nm 2o 3, wherein the effect of zirconium dioxide is the catalytic efficiency improving catalyst, extends the service life of catalyst, and wherein the effect of ceria is the high-temperature stability improving catalyst, extends the high efficiency of catalyst, thus extends the service life of catalyst.
In technique scheme, tungstic acid, vanadic anhydride, glass fibre, paper pulp cotton, stearic acid, polyethylene glycol oxide, ceria and zirconium dioxide all can adopt commercially available prod.
Present invention also offers a kind of preparation method of above-mentioned catalyst, this preparation method comprises two steps: step one, the preparation of carrier:
First anion surfactant is mixed with nano grade Sic particle and disperse, recycling Al 2o 3colloidal sol carries out surface coating modification to SiC particle, obtains SiC-Al 2o 3composite particles, to SiC-Al 2o 3add ceria and zirconium dioxide in composite particles, add sodium borohydride, washing, oven dry, roasting obtain SiC-Al 2o 3complex carrier, wherein said anion surfactant is lauryl sodium sulfate or neopelex, such as, adopt the sodium dodecyl sulfate solution of 0.05g/L ~ 0.25g/L, significantly can improve the dispersion effect of nano grade Sic particle;
Step 2, the preparation of catalyst:
The preparation process of this catalyst can adopt preparation method of the prior art, such as, by SiC-Al 2o 3complex carrier and active component mixing, through pre-extruded, old, extrude, primary drying, redrying, roasting, obtain SCR catalyst for denitrating flue gas product, wherein pre-extruded pressure 1Mpa ~ 4Mpa; The old time is 18h ~ 32h; Extrusion pressure 2Mpa ~ 5Mpa, temperature 26 DEG C ~ 30 DEG C; The primary drying time is 8 days ~ 12 days; The redrying time is 1 day ~ 2 days; Sintering temperature 580 DEG C ~ 650 DEG C, the time is 20h ~ 40h.
First technique scheme improves dispersiveness and the surface characteristic of SiC by anion surfactant, recycling Al 2o 3colloidal sol carries out surface coating modification to SiC particle, improves the dispersiveness of SiC nano powder further, obtains the larger SiC-Al of specific surface after stirring drying 2o 3complex carrier, then active constituent loading is carried out to carrier, after testing, under 600 DEG C of hot environments, denitration efficiency reaches more than 85% to the SCR catalyst for denitrating flue gas product obtained, and specific area is 85m 2/ g, higher than general vanadium tungsten titanium catalyst, and is obviously greater than simple SiC and does high temperature catalyst prepared by carrier, thus have the beneficial effect of Large ratio surface sum NO_x Reduction by Effective under realizing hot conditions concurrently.
Each component in a kind of SCR catalyst for denitrating flue gas of the present invention is obtained embodiment one, two, three, four according to different ratio design, and carrier in a group of denitration effect the best in above-described embodiment to be replaced with completely carborundum as a comparison case one, and by existing with Detitanium-ore-type TiO 2as the catalyst as a comparison case two of carrier, carry out denitration reaction activity rating by the product obtained self-control tubular type SCR reactor, wherein simulated flue gas consist of 600ppmNH 3, 600ppmNO and 3%O 2, overall flow rate is 350ml/min, and design reaction temperature interval is 430 DEG C ~ 670 DEG C, and reactor tail pipe is imported and exported gas concentration and carried out on-line checkingi by Testo350-XL flue gas analyzer, and its denitration efficiency sees the following form 1.
And carrying out specific area measuring according to standard GB/T/T19587-2004 " gas absorption BET principle measures the method for solid matter specific area ", it the results are shown in following table 1.
The content of each component and denitration performance in table 1 catalyst
Experiment finds, denitrating catalyst of the present invention catalyst denitration efficiency when carborundum and alundum (Al2O3) ratio are 65:20 is the highest, can remain on more than 85%, be obviously better than other SCR denitration in the denitration rate of 600 DEG C of hot environments;
Comparatively speaking, Detitanium-ore-type TiO is used 2as the denitrating catalyst of carrier, due to Detitanium-ore-type TiO under hot conditions 2to rutile TiO 2change, denitration efficiency sharply reduces, and is therefore not suitable for hot environment;
Further, the catalyst that denitrating catalyst specific area of the present invention uses carborundum to be carrier is more merely higher, is more conducive to lasting stability denitration under hot conditions, and beneficial effect is remarkable, and alundum (Al2O3) cost is lower simultaneously, is more suitable for large-scale production application.

Claims (7)

1. a SCR catalyst for denitrating flue gas, is characterized in that, described SCR catalyst for denitrating flue gas comprises carrier, active component and auxiliary material, and wherein the parts by weight of each component are according to following ratio:
Carrier
45 parts ~ 65 parts, carborundum
Alundum (Al2O3) 15 parts ~ 30 parts
Active component
Tungstic acid 3 parts ~ 10 parts
Vanadic anhydride 1.5 parts ~ 2.5 parts
Ceria 1 part ~ 4 parts
Zirconium dioxide 1 part ~ 5 parts
Auxiliary material
1 part ~ 5 parts, glass fibre
Cotton 1 part ~ 5 parts of paper pulp
Stearic acid 1 part ~ 4 parts
Polyethylene glycol oxide 1 part ~ 3 parts
Be prepared from.
2. a kind of SCR catalyst for denitrating flue gas as claimed in claim 1, is characterized in that, described carborundum and alundum (Al2O3) are SiC-Al 2o 3complex carrier.
3. a kind of SCR catalyst for denitrating flue gas as claimed in claim 2, is characterized in that, the nanometer silicon carbide of described carborundum to be particle size range be 10nm ~ 50nm, the nanometer γ-Al of described alundum (Al2O3) to be particle size range be 20nm ~ 30nm 2o 3.
4. a kind of SCR catalyst for denitrating flue gas as claimed in claim 1, it is characterized in that, in described SCR catalyst for denitrating flue gas, the weight fraction of carborundum content is 55 parts ~ 65 parts, alundum (Al2O3) content is 18 parts ~ 30 parts, tungstic acid content is 4 parts ~ 8 parts, ceria content is 2 parts ~ 4 parts, and zirconium dioxide content is 2 parts ~ 5 parts.
5. a preparation method for SCR catalyst for denitrating flue gas as claimed in claim 1, comprises two steps: step one, the preparation of carrier; Step 2, the preparation of catalyst; It is characterized in that,
In described step one, first anion surfactant is mixed with nano grade Sic particle and disperse, recycling Al 2o 3colloidal sol carries out surface coating modification to SiC particle, obtains SiC-Al 2o 3composite particles, and prepare SiC-Al 2o 3complex carrier;
In described step 2, by SiC-Al 2o 3complex carrier and active component mixing, through pre-extruded, old, extrude, primary drying, redrying, roasting, obtain SCR catalyst for denitrating flue gas product.
6. preparation method as claimed in claim 5, it is characterized in that, in described step one, described anion surfactant is lauryl sodium sulfate or neopelex.
7. preparation method as claimed in claim 5, is characterized in that, in described step one, to SiC-Al 2o 3add ceria and zirconium dioxide in composite particles, add sodium borohydride, washing, oven dry, roasting obtain SiC-Al 2o 3complex carrier.
CN201510917159.4A 2015-12-14 2015-12-14 SCR flue gas denitration catalyst and preparation method thereof Pending CN105521806A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106311301A (en) * 2016-08-19 2017-01-11 安徽元琛环保科技股份有限公司 Super-wear-resistant cellular denitration catalyst and preparation method thereof
CN106311215A (en) * 2016-07-26 2017-01-11 浙江三龙催化剂有限公司 Mixing method for cerium oxide and molding agent
CN106807358A (en) * 2017-02-09 2017-06-09 安徽元琛环保科技股份有限公司 A kind of high temperature resistant SCR catalyst for denitrating flue gas and preparation method thereof
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
CN112108143A (en) * 2020-09-27 2020-12-22 江西新科环保股份有限公司 Ultra-high temperature denitration catalyst
CN114477892A (en) * 2021-12-27 2022-05-13 山东坊能新动能科学研究院有限公司 Cement-based porous material for high-temperature flue gas purification and preparation method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1593752A (en) * 2004-07-01 2005-03-16 国电热工研究院 Catalyst for generating station fume SCR denitration and preparation method thereof
CN101462067A (en) * 2009-01-08 2009-06-24 中电投远达环保工程有限公司 Novel SCR granular catalyst
CN101474570A (en) * 2009-01-08 2009-07-08 中电投远达环保工程有限公司 SCR granular catalyst substrate and preparation method thereof
CN102240543A (en) * 2011-05-05 2011-11-16 清华大学 CeO2-ZrO2 based SCR (selective catalytic reduction) catalyst used for denitration and preparation thereof
CN104415780A (en) * 2013-08-22 2015-03-18 中国石油化工股份有限公司 Denitration catalyst and preparation method thereof
CN104549398A (en) * 2014-12-31 2015-04-29 中国建筑材料科学研究总院 Micropore ceramic catalyst and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1593752A (en) * 2004-07-01 2005-03-16 国电热工研究院 Catalyst for generating station fume SCR denitration and preparation method thereof
CN101462067A (en) * 2009-01-08 2009-06-24 中电投远达环保工程有限公司 Novel SCR granular catalyst
CN101474570A (en) * 2009-01-08 2009-07-08 中电投远达环保工程有限公司 SCR granular catalyst substrate and preparation method thereof
CN102240543A (en) * 2011-05-05 2011-11-16 清华大学 CeO2-ZrO2 based SCR (selective catalytic reduction) catalyst used for denitration and preparation thereof
CN104415780A (en) * 2013-08-22 2015-03-18 中国石油化工股份有限公司 Denitration catalyst and preparation method thereof
CN104549398A (en) * 2014-12-31 2015-04-29 中国建筑材料科学研究总院 Micropore ceramic catalyst and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
邱健斌等: ""Pd-CeZr/SiC催化剂的制备及其催化氧化性能"", 《石油化工》 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106311215A (en) * 2016-07-26 2017-01-11 浙江三龙催化剂有限公司 Mixing method for cerium oxide and molding agent
CN106311301A (en) * 2016-08-19 2017-01-11 安徽元琛环保科技股份有限公司 Super-wear-resistant cellular denitration catalyst and preparation method thereof
CN106807358A (en) * 2017-02-09 2017-06-09 安徽元琛环保科技股份有限公司 A kind of high temperature resistant SCR catalyst for denitrating flue gas and preparation method thereof
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
CN112108143A (en) * 2020-09-27 2020-12-22 江西新科环保股份有限公司 Ultra-high temperature denitration catalyst
CN114477892A (en) * 2021-12-27 2022-05-13 山东坊能新动能科学研究院有限公司 Cement-based porous material for high-temperature flue gas purification and preparation method thereof
CN114477892B (en) * 2021-12-27 2023-06-16 山东坊能新动能科学研究院有限公司 Cement-based porous material for purifying high-temperature flue gas and preparation method thereof

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