CN107456971A - A kind of oxynitrides purifying nano technology catalyst and preparation method thereof - Google Patents
A kind of oxynitrides purifying nano technology catalyst and preparation method thereof Download PDFInfo
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- CN107456971A CN107456971A CN201610392044.2A CN201610392044A CN107456971A CN 107456971 A CN107456971 A CN 107456971A CN 201610392044 A CN201610392044 A CN 201610392044A CN 107456971 A CN107456971 A CN 107456971A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 36
- 238000005516 engineering process Methods 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000002086 nanomaterial Substances 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 12
- 230000003197 catalytic effect Effects 0.000 claims abstract description 11
- 239000000919 ceramic Substances 0.000 claims abstract description 11
- 229910052878 cordierite Inorganic materials 0.000 claims abstract description 11
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 9
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- -1 transition metal salt Chemical class 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 5
- 230000032683 aging Effects 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 4
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910001431 copper ion Inorganic materials 0.000 claims abstract description 3
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 claims abstract description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 3
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910001948 sodium oxide Inorganic materials 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910017518 Cu Zn Inorganic materials 0.000 claims description 2
- 229910017752 Cu-Zn Inorganic materials 0.000 claims description 2
- 229910017943 Cu—Zn Inorganic materials 0.000 claims description 2
- 102000004190 Enzymes Human genes 0.000 claims description 2
- 108090000790 Enzymes Proteins 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims description 2
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims description 2
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 150000004703 alkoxides Chemical class 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 14
- 239000003546 flue gas Substances 0.000 abstract description 14
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 238000012545 processing Methods 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 239000000809 air pollutant Substances 0.000 description 2
- 231100001243 air pollutant Toxicity 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000011943 nanocatalyst Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/78—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with alkali- or alkaline earth metals
-
- 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
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/391—Physical properties of the active metal ingredient
- B01J35/393—Metal or metal oxide crystallite size
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of oxynitrides purifying nano technology catalyst and preparation method thereof, and, using cordierite honeycomb ceramic as carrier, the parts by weight shared by each component and each component of carrier surface distribution are for it：The parts by weight of silica 1 5~35, the parts by weight of aluminum oxide 10~30, the parts by weight of copper ion 2~10, the parts by weight of sodium oxide molybdena 2, the parts by weight of iron oxide 5, the parts by weight of catalyst 5.Its preparation method is：1st, the presoma of nanometer molecule of the skeleton, transition metal salt and template form oligomer by the method for common assembling；2nd, oligomer is assembled into mesoporous nano structure；3rd, the nano material of catalytic activity is obtained by aging roasting process；4th, the nano material for having catalytic activity is coated to cordierite honeycomb ceramic surface；5th, by the cordierite honeycomb ceramic drying of coated nano material.Preparation method of the present invention is simple, applied widely；Catalytic reaction can be directly carried out, without adding auxiliary equipment, cost is low；The high treating effect of high-temperature flue gas.
Description
Technical field
The present invention relates to catalyst technical field, more particularly to one kind can directly carry out catalytic reaction, high-temperature flue gas processing
Oxynitrides purifying nano technology catalyst that effect is good, cost is low and preparation method thereof.
Background technology
With dramatically increasing for the continuous rapid growth of China's economy and motor vehicle yield and recoverable amount, vehicular emission
NOx has become one of primary source of big and medium-sized cities air pollutants.NOx as one of Air Pollutant Discharge, including NO,
NO2、N2O、N2O3And N2O4.NOx can cause the formation of greenhouse effects, depletion of the ozone layer, acid rain and photochemical fog, to environment and
Health causes serious threat.Therefore, NOx emission control has turned into a research in current air environmental technology field
Focus.
The emission control of emission control to NOx, mainly reducing agent is used in industry（Ammonia, urea, alkane etc.）With nitrogen
Oxide occurs chemical reaction and neutralizes nitrogen oxides, the main selective catalytic reduction method of technique（SCR）Urged with selectively non-
Change reducing process（SNCR）Deng ammonia and generation nitrogen and water after reaction of nitrogen oxides, so as to reach non-pollution discharge.
At present, SCR technology（SCR）It is considered as one of maximally efficient method of NOx catalytic purifications.It is former
Reason is in the presence of certain temperature range and catalyst, is optionally reduced to NOx by adding suitable reducing agent
The N of nonhazardous2And H2O, NOx catalytic eliminatings are realized, SCR technology is because with high denitration efficiency, N2 selective and good economy
Property, large-scale application has been obtained in terms of stationary source denitration.
And in SCR technology, vital effect is played in the selection of catalyst.Particularly power plant high-temperature flue gas,
Truck, car, steamer, generating set, boiler emission fume treatment in, the control of the oxynitrides of high temperature is led as technology
Object is captured in domain, and in existing SCR technology, its catalyst used does not apply to this high temperature discharge simultaneously
The purified treatment of flue gas oxynitrides, it need to generally increase flue gas waste heat utilization device etc. and carry out temperature control, to adapt to be catalyzed
Agent is reacted.Its shortcoming is：The clean-up effect of its oxynitrides is undesirable；In addition, because adding flue gas waste heat utilization device, its
Cost greatly increases, and manages also more troublesome.
The content of the invention
In order to solve the problems of the prior art, it is an object of the invention to provide a kind of oxynitrides purifying nano technology
Catalyst and preparation method thereof, it is the new catalyst made by nanometer synthetic technology, can effectively adapt to high-temperature flue gas row
The processing put, without adding auxiliary equipment, catalytic reaction can be directly carried out, greatly reduces cost；Its preparation method is simple, and
It is adapted to pyroreaction, it is applied widely.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of oxynitrides purifying nano technology catalyst, its using cordierite honeycomb ceramic as carrier, carrier surface distribution
Parts by weight shared by each component and each component are：
The parts by weight of silica 1 5~35
The parts by weight of aluminum oxide 10~30
The parts by weight of copper ion 2~10
The parts by weight of sodium oxide molybdena 2
The parts by weight of iron oxide 5
The parts by weight of catalyst 5
Wherein, the catalyst is titanium dioxide.
By with efficient reduction or oxidation, showing the excellent catalytic performance such as high activity and high selectivity.
In reaction, the size of nanocatalyst, pattern, surface nature etc. serve the effect of key to its activity and selectivity.Nanometer
For particle because size is small, the volume fraction shared by surface is big, the key state and electronic state on surface and different, surface atom inside particle
Coordination is not congruent, causes the active position on surface to increase, this just makes nano particle possess the primary condition as catalyst.With
The reduction of particle diameter, surface smooth degree is deteriorated, and forms rough atomic stepses, this adds increased connecing for chemical reaction
Contacting surface.
Present invention also offers a kind of preparation method of oxynitrides purifying nano technology catalyst, it includes following step
Suddenly：
S1, the presoma of nanometer molecule of the skeleton, transition metal salt and template are initially formed oligomer by the method for common assembling；
S2, oligomer is assembled into mesoporous nano structure；
S3, by aging roasting process obtain the nano material of catalytic activity；
S4, the nano material for having catalytic activity is coated to cordierite honeycomb ceramic surface；
S5, the cordierite honeycomb ceramic drying by coated nano material, that is, obtain nanometer technology high temperature catalyst.
Preferable scheme, the presoma of the nanometer molecule of the skeleton refer to metal inorganic salt or alcohol in single-activity position
Salt, it can preferably produce chemical reaction and carry out sol-gel.
Further preferred scheme, the transition metal salt have referred to that the particle diameter of combustion supporting catalytic reaction is less than 013 μm of Ni
With the ultrafine dust of Cu-Zn alloys.
Scheme still more preferably, the template are the enzyme antibody catalysis material to synthetic antibody.
Scheme still further preferably, the temperature being calcined described in step S3 are 900 DEG C, and roasting time is 6~10 hours.
By using above technical scheme, a kind of oxynitrides purifying nano technology catalyst of the present invention and its preparation side
Compared with prior art, its advantage is method：
1st, the present invention is the new catalyst made by nanometer synthetic technology, can effectively adapt to the processing of high-temperature flue gas discharge,
Catalytic reaction can be directly carried out, without adding auxiliary equipment, cost substantially reduces；
2nd, preparation method of the present invention is simple, and is adapted to pyroreaction, and the high treating effect of high-temperature flue gas is applied widely, receives
Rice core catalyst technology is ripe effectively, and the thermotonus condition compared to more original catalyst has more advantage；
3rd, existing flue gas oxynitrides treatment technology, reaction temperature condition are restricted, and need to carry out some post-processing technologies
Entering trip temperature reduces control, comes to carry out oxynitrides processing with catalyst with this, its cost increase, has to high-temperature exhaust air system
Influence, and do not apply to the processing of this high-temperature flue gas, and cost of the present invention is low, widely applicable, it is convenient directly to manage.
Embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to instantiation, to the present invention
It is further described.It should be understood that these descriptions are merely illustrative, and it is not intended to limit the scope of the present invention.In addition,
In illustrating below, the description to known features and technology is eliminated, to avoid unnecessarily obscuring idea of the invention.
The present invention discharges for high-temperature flue gas, and using cordierite honeycomb ceramic as carrier, transition metal is active component,
It will be made using the method that nanometer synthetic technology assembles and irrigates in the duct of metal salt injection mesopore molecular sieve a kind of new multiple
Catalyst is closed, can efficient depickling at high operating temperatures.Presoma, transition metal salt and the template of nanometer molecule of the skeleton pass through altogether
The method of assembling, is initially formed oligomer, is then assembled into mesoporous nano structure；Catalytic activity is obtained by aging roasting process
Nano material；Material is finally coated to cordierite honeycomb ceramic surface.Novel nano technology high temperature catalyst is obtained after drying.
Following examples are used for the present invention in the processing of motor vehicle high-temperature flue gas, specific as follows：
Case is transformed for peace letter Anqing vehicular emission below, information of vehicles is：
Vehicle model：Pacify triumphant type of vehicle：Large-scale way-train
Reference mass：9600KG Maximum total mass：15500KG
Character of use：Bus transportation engine power：140KG
Type of drive：Parking engine displacement after 4x2 rear-guards：6L
Number of cylinders：6 intake methods：Natural aspiration
Fuel oil form：Compression-ignited marine fuels specification：Diesel oil
Detection device title：Opacity smoke meter
Detect ambient condition：15 DEG C, atmospheric pressure 102.7kPa of temperature, relative humidity 55.2%
First, not assemble the DPF of nanometer technology catalyst making of the present invention to detect, testing result and ruling such as following table one：
Table one
Later, after the DPF that fit on nanometer technology catalyst of the present invention made, then detected, testing result is shown in Table two：
Table two
Found by the contrast of table one and table two, the DPF that novel diesel car nanometer technology catalyst makes, pass through newest nanometer skill
Prepared by art, perfect coating surface, catalytic conversion efficiency is significantly lifted compared to common DPF.Illustrate that the suitable high temperature of the present invention is anti-
Should, the high treating effect of high-temperature flue gas.
Above-mentioned embodiment is exemplary, is to preferably make skilled artisans appreciate that originally
Patent, it is impossible to be not understood as the limitation for including scope to this patent；As long as times made of spirit according to disclosed in this patent
How with change or modification, the scope that this patent includes is each fallen within.
Claims (7)
1. a kind of oxynitrides purifying nano technology catalyst, it is characterised in that it is carried using cordierite honeycomb ceramic as carrier
Parts by weight shared by each component and each component of body surface EDS maps are：
The parts by weight of silica 1 5~35
The parts by weight of aluminum oxide 10~30
The parts by weight of copper ion 2~10
The parts by weight of sodium oxide molybdena 2
The parts by weight of iron oxide 5
The parts by weight of catalyst 5.
A kind of 2. oxynitrides purifying nano technology catalyst according to claim 1, it is characterised in that the catalysis
Agent is titanium dioxide.
3. a kind of preparation method of oxynitrides purifying nano technology catalyst, it is characterised in that it comprises the following steps：
S1, the presoma of nanometer molecule of the skeleton, transition metal salt and template are initially formed oligomer by the method for common assembling；
S2, oligomer is assembled into mesoporous nano structure；
S3, by aging roasting process obtain the nano material of catalytic activity；
S4, the nano material for having catalytic activity is coated to cordierite honeycomb ceramic surface；
S5, the cordierite honeycomb ceramic drying by coated nano material, that is, obtain nanometer technology high temperature catalyst.
4. a kind of preparation method of oxynitrides purifying nano technology catalyst according to claim 3, its feature exist
Refer to the metal inorganic salt or alkoxide in single-activity position in the presoma of, the nanometer molecule of the skeleton, can more preferable generation
Learn reaction and carry out sol-gel.
5. a kind of preparation method of oxynitrides purifying nano technology catalyst according to claim 3, its feature exist
In the transition metal salt has referred to the ultrafine dust of Ni and Cu-Zn alloy of the particle diameter less than 013 μm of combustion supporting catalytic reaction.
6. a kind of preparation method of oxynitrides purifying nano technology catalyst according to claim 3, its feature exist
In the template is the enzyme antibody catalysis material to synthetic antibody.
7. a kind of preparation method of oxynitrides purifying nano technology catalyst according to claim 3, its feature exist
In the temperature being calcined described in step S3 is 900 DEG C, and roasting time is 6~10 hours.
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| CN201610392044.2A CN107456971A (en) | 2016-06-06 | 2016-06-06 | A kind of oxynitrides purifying nano technology catalyst and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610392044.2A CN107456971A (en) | 2016-06-06 | 2016-06-06 | A kind of oxynitrides purifying nano technology catalyst and preparation method thereof |
Publications (1)
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| CN107456971A true CN107456971A (en) | 2017-12-12 |
Family
ID=60544506
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| CN201610392044.2A Pending CN107456971A (en) | 2016-06-06 | 2016-06-06 | A kind of oxynitrides purifying nano technology catalyst and preparation method thereof |
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|---|---|---|---|---|
| CN102500407A (en) * | 2011-10-09 | 2012-06-20 | 南京大学 | Preparation method of bimetal-doped mesoporous material SBA-15 catalyst and bimetal-doped SBA-15 catalyst |
| CN102836713A (en) * | 2011-06-24 | 2012-12-26 | 上海牛翼新能源科技有限公司 | High-efficiency nano catalyst capable of removing micro NO and NH3 simultaneously at room temperature |
| CN102921448A (en) * | 2012-11-16 | 2013-02-13 | 山西省交通科学研究院 | Catalyst for purifying automobile exhaust |
| 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 |
| CN105289676A (en) * | 2015-10-27 | 2016-02-03 | 展宗城 | Foam-like low-temperature SCR catalyst and preparation method thereof |
-
2016
- 2016-06-06 CN CN201610392044.2A patent/CN107456971A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836713A (en) * | 2011-06-24 | 2012-12-26 | 上海牛翼新能源科技有限公司 | High-efficiency nano catalyst capable of removing micro NO and NH3 simultaneously at room temperature |
| CN102500407A (en) * | 2011-10-09 | 2012-06-20 | 南京大学 | Preparation method of bimetal-doped mesoporous material SBA-15 catalyst and bimetal-doped SBA-15 catalyst |
| CN102921448A (en) * | 2012-11-16 | 2013-02-13 | 山西省交通科学研究院 | Catalyst for purifying automobile exhaust |
| 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 |
| CN105289676A (en) * | 2015-10-27 | 2016-02-03 | 展宗城 | Foam-like low-temperature SCR catalyst and preparation method thereof |
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| Title |
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