CN106552643A - It is a kind of that there is high resistance to SO_2 iron ore denitrating catalyst and its preparation method and application - Google Patents
It is a kind of that there is high resistance to SO_2 iron ore denitrating catalyst and its preparation method and application Download PDFInfo
- Publication number
- CN106552643A CN106552643A CN201611033383.8A CN201611033383A CN106552643A CN 106552643 A CN106552643 A CN 106552643A CN 201611033383 A CN201611033383 A CN 201611033383A CN 106552643 A CN106552643 A CN 106552643A
- Authority
- CN
- China
- Prior art keywords
- ore
- iron ore
- high resistance
- denitrating catalyst
- catalyst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- B01J23/84—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 arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8628—Processes characterised by a specific catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Abstract
The invention discloses a kind of have high resistance to SO_2 iron ore denitrating catalyst and its preparation method and application.The present invention is by rare earth doped Elements C e in ferrous manganese ore, prepare modified ferrous manganese ore catalyst and be applied to SCR denitration reaction, be effectively improved the resistance to SO_2 of ferrous manganese ore, while catalyst low cost, it is convenient to prepare, and is a kind of strong environmentally friendly effective catalyst of resistance to SO_2.With ferromanganese ore as raw material, Mn oxide inherently has certain catalysis activity to the present invention, and wide material sources are cheap, are conducive to promoting；Ferromanganese ore of the ferromanganese ore after present invention doping Ce compared to undoped p Ce, its resistance to SO_2 have obtained large increase.
Description
Technical field
The invention belongs to technical field of air pollution control, and in particular to a kind of that there is high resistance to SO_2 iron ore denitration catalyst
Agent and its preparation method and application.
Background technology
Nitrogen oxides is to endanger one of major pollutants of air, and SCR (SCR) technology is that removing is fixed
One of effective ways of NOx in source emission flue gas.Catalyst is the core of SCR denitration technology.However, in SO2In the presence of, SO2Hold
Easily and NH3Catalyst surface is covered in Deng reacting generating salt or sulphite, the active sites of catalyst are plugged, so as to
Affect its denitration efficiency.Therefore, the resistance to SO_2 for how improving SCR denitration is a problem demanding prompt solution.
The content of the invention
Technical problem：For the deficiencies in the prior art, first technical problem to be solved by this invention is to provide one kind
Its preparation method with high resistance to SO_2 iron ore denitrating catalyst.
Present invention technical problem also to be solved there is provided a kind of with high resistance to SO_2 iron ore denitrating catalyst.
Present invention technical problem also to be solved there is provided one kind and have high resistance to SO_2 iron ore denitrating catalyst in work
Application in terms of industry sulfur resistive denitration.
Present invention technical problem also to be solved there is provided a kind of resistance to SO_2 of high resistance to SO_2 iron ore denitrating catalyst
Can method of testing.
The present invention is by rare earth doped Elements C e of ferromanganese ore, the preparation method calcined at 550 DEG C, the catalysis of preparation
Agent has the advantages that the high denitration of resistance to SO_2.
Technical scheme：In order to solve above-mentioned technical problem, one kind that the present invention is provided has high resistance to SO_2 iron ore denitration
The preparation method of catalyst, the preparation method are comprised the following steps：
1) the ferromanganese ore particles of 35～65 mesh are filtered out after will be ferromanganese mineral powder broken；The content of Mn in the ferromanganese ore
It is not less than 50wt%；
2) by Ce (NO3)3·6H2O is obtained Ce (NO in being dissolved in distilled water3)3Solution；
3) by step 1) the ferromanganese ore particles that filter out input step 2) Ce (NO that prepare3)3In solution, which is carried out
Water bath with thermostatic control is heated with stirring to solvent evaporating completely and obtains mixture；
4) by step 3) obtained in mixture be transferred in baking oven, carry out 0.5-1h freeze-day with constant temperature at 100～120 DEG C；
5) by step 4) be dried after the mixture of gained be placed in Muffle furnace 550 DEG C of 3～4h of calcining of Jing, finally produce from calcining
Filter out 35～65 purpose products to obtain final product with high resistance to SO_2 iron ore denitrating catalyst in thing.
Wherein, in above-mentioned high resistance to SO_2 iron ore denitrating catalyst, the incorporation of Ce is high resistance to SO_2 iron ore denitration catalyst
The 5～15% of agent quality.
Wherein, above-mentioned steps 3) in water bath with thermostatic control agitating heating refer to using constant temperature magnetite agitator prepare it is water-soluble
Liquid, and in 60～70 DEG C of stirred in water bath heating 0.5-1.5h.
Preferably, above-mentioned steps 3) in agitating heating 0.5h-1h.
The high resistance to SO_2 iron ore denitrating catalyst that above-mentioned preparation method is prepared.
Application of the above-mentioned high resistance to SO_2 iron ore denitrating catalyst in terms of industrial sulfur resistive denitration.
The sulfur resistance method of testing of above-mentioned high resistance to SO_2 iron ore denitrating catalyst, comprises the following steps：
1) high resistance to SO_2 iron ore denitrating catalyst and natural ferrous manganese ore catalyst are seated in stainless steel respectively to fix
In bed reactor, with NH3 as reducing gas, reduction reaction is carried out；
2) temperature programming is carried out respectively to reactor, the corresponding denitration effect of temperature is measured and calculated with flue gas analyzer
Rate；
3) SO2 is each led into, and the amount of a smoke outlet NOx is measured every 30min, and is calculated denitration effect respectively
Rate；
4) SO2 be passed through the time for 450min when stop be passed through SO2, afterwards again every 30min measure a smoke outlet
The amount of NOx, and calculate denitration efficiency.
Specifically, the resistance to SO_2 method of testing of modified manganese iron ore SCR denitration is comprised the following steps：
Step 1, weighs above-mentioned modified manganese iron ore SCR denitration and is seated in fixed bed reactors；
Step 2, opens gas inlet valve, and the simulated flue gas parameter being passed through is：N (NO)=n (NH3)=500ppm, Using N2For balanced gas, gas overall flow rate 1.5L/min is maintained, reaction velocity is 30000h-1；
Step 3, carries out temperature programming to 270 DEG C, after treating temperature stabilization for a period of time, uses flue gas analysis to reaction system
Instrument is measured and calculates 270 DEG C of corresponding denitration efficiencies.The SO2 of 100ppm is passed through afterwards, it is every from after being passed through the SO2 time starteds
The amount of a smoke outlet NOx is measured every 30min, and calculates denitration efficiency.SO2 be passed through the time for 450min when stop
SO2 is passed through, the amount of a smoke outlet NOx is measured afterwards again every 30min, and is calculated denitration efficiency.
During use, first will be ferromanganese mineral powder broken, the ferromanganese ore particles of 35～65 mesh are filtered out, so as to obtain ferrous manganese ore
Stone raw material；Ce (NO are prepared simultaneously3)3Solution, 3.1gCe (NO3)3·6H2O is put in the beaker for measuring 20ml deionized waters, will
After which prepares solution by a certain percentage, then weigh above acquired ferrous manganese ore 10g and put in the middle of the solution for just having prepared, put
Put in constant temperature magnetite agitator agitating heating, in 60 DEG C of stirred in water bath heating 0.5-1h until solvent is almost evaporated, then
Being transferred in baking oven, 1h freeze-day with constant temperature being carried out at 120 DEG C, the mixture of gained after drying is placed in into Jing 550 in Muffle furnace
DEG C calcining 4h, the modified manganese iron ore of 35～65 mesh is finally filtered out from calcined product.
The chemical reagent that catalyst preparation is adopted has Ce (NO3)3·6H2O (analysis is pure), distilled water, ferrous manganese ore etc..
Beneficial effect：Relative to prior art, the present invention has advantages below：
1. with ferromanganese ore as raw material, Mn oxide inherently has certain catalysis activity, wide material sources, valency to the present invention
Lattice are cheap, are conducive to promoting；
2. ferromanganese ore of the ferromanganese ore after present invention doping Ce compared to undoped p Ce, its resistance to SO_2 obtained very
It is big to improve.
Description of the drawings
Fig. 1 SO2Impact to the catalytic denitration efficiency of the ferromanganese ore before and after the 10%Ce that adulterates after 550 DEG C of calcinings.By scheming
It can be seen that, in SO2After being passed through 200 minutes, the catalytic denitration efficiency of the ferromanganese ore of the Ce that adulterates is than unadulterated ferromanganese ore
Catalytic denitration efficiency high 10%；Ce in figure0.1- ferrous manganese ore represents modified 10%Ce- ferrous manganese ore catalyst；
The SCR denitration activity of Fig. 2 difference Ce doping ferrous manganese ore catalyst；Ce in figure0.05- ferrous manganese ore represents modified
5%Ce- ferrous manganese ore catalyst, Ce0.1- ferrous manganese ore represents modified 10%Ce- ferrous manganese ore catalyst, Ce0.15- ferrous manganese ore is represented
Modified 15%Ce- ferrous manganese ore catalyst；
The thermogravimetric analysis of Fig. 3 post catalyst reactions；
Fig. 4 Ce improve Mn base catalyst resistance to SO_2 schematic diagrams.
Specific embodiment
Embodiment 1：
The SCR denitration preparation method step of the ferromanganese ore of 550 DEG C of calcining doping 10%Ce is as follows：
First will be ferromanganese mineral powder broken, the ferromanganese ore particles of 35～65 mesh are filtered out, so as to obtain ferromanganese ore；
Ce (NO are prepared simultaneously3)3Solution, weighs 3.1gCe (NO3)3·6H2O is put in the beaker for measuring 20ml deionized waters, is prepared
Good solution, then weigh above acquired ferromanganese ore 10g and put in the solution for just having prepared, it is placed on constant temperature magnetite agitator
Agitating heating, in 60 DEG C of stirred in water bath heating 0.5-1h until solvent is almost evaporated, then is transferred in baking oven,
120 DEG C carry out 1h freeze-day with constant temperature, the mixture of gained after drying are placed in 550 DEG C of calcining 4h of Jing in Muffle furnace, finally from calcining
Product filters out the modified ferrous manganese ore of 35～65 purposes, and what is obtained is exactly 550 DEG C of modified 10%Ce- ferrous manganese ore catalyst of calcining.
Comparative example 1
Only by ferromanganese ore mechanical crushing, the ferromanganese ore particles of 35～65 mesh are then filtered out, then which is entered at 550 DEG C
Row calcination processing, obtains the ferromanganese ore catalyst of single 550 DEG C of calcinings.
Embodiment 2：
Implementation steps such as embodiment 1, other conditions are constant, change Ce (NO3)3·6H2O amounts are 1.55g, are obtained 550 DEG C and forge
Burn modified 5%Ce- ferrous manganese ore catalyst.
Embodiment 3：
Implementation steps such as embodiment 1, other conditions are constant, change Ce (NO3)3·6H2O amounts are 4.65g, are obtained 550 DEG C and forge
Burn modified 15%Ce- ferrous manganese ore catalyst.
Experimental example 1
The catalyst that embodiment 1 and comparative example 1 are obtained is carried out into sulfur resistive test as follows：
Resistance to SO_2 test is obtained natural in the Ce- ferrous manganese ores catalyst and comparative example 1 that will be modified obtained in embodiment 1
Ferrous manganese ore catalyst, weigh 4.5g respectively, be seated in internal diameter be 2cm stainless steel fixed bed reactors in, with NH3 as reduction
During gas, simulated flue gas are：N (NO)=n (NH3)=500ppm,N2For balanced gas, gas in reaction, is maintained
Overall flow rate is 1.5L/min, and reaction velocity is 30000h-1.Temperature programming is carried out to reaction system to 270 DEG C, temperature stabilization one is treated
After the section time, 270 DEG C of corresponding denitration efficiencies are measured and are calculated with flue gas analyzer.The SO of 100ppm is passed through afterwards2, from
It is passed through SO2The amount of a smoke outlet NOx is measured after time started every 30min, and calculates denitration efficiency.SO2It is logical
Stop being passed through SO when the angle of incidence is 450min2, measure the amount of a smoke outlet NOx afterwards again every 30min, and calculate
Go out denitration efficiency, so as to draw SO2Impact to rear ferromanganese ore SCR catalytic denitration efficiency before modified.The result is reflected and is changed
The sulfur resistance of property ferromanganese ore SCR denitration.
SO2After to adulterating Ce before modified, the impact of ferromanganese ore catalyst denitration efficiency is as shown in figure 1, can be with by figure
Find out, in 30000h-1High-speed under, be not passed through SO2Before, ferrous manganese ore catalyst denitration efficiency is 81% or so, Ce0.1-
The denitration efficiency of ferrous manganese ore catalyst is 79% or so, and ferrous manganese ore is slightly above Ce0.1- ferrous manganese ores.It is being passed through SO2Both afterwards,
Catalytic efficiency all present the downward trend of different amplitudes, the ferrous manganese ore catalyst downward trend after the Ce that adulterates is modified is relative
Slowly, final denitration efficiency about 57%, and the final denitration efficiency of ferrous manganese ore catalyst about 46%.Such as air speed is down to common
10000h-1Left and right, catalytic denitration efficiency will greatly improve.The addition of this explanation Ce is conducive to slowing down the SO of ferrous manganese ore catalyst2
Poisoning.Reason is that the Mn base catalyst of Ce modifications shows preferable resistance to SO_2, the deposition and activity of ammonium sulfate after the Ce that adulterates
The sulfation of position is all suppressed significantly.
Experimental example 2
Modified 10%Ce- ferrous manganese ore catalyst that embodiment 1～3 is prepared respectively, modified 5%Ce- ferrous manganese ores are urged
Agent, modified 15%Ce- ferrous manganese ores catalyst carry out denitration performance test, and specific experiment process is as follows：
Will obtained in embodiment 1～3 be modified Ce- ferrous manganese ore catalyst, weigh 4.5g, be seated in internal diameter for 2cm not
In rust steel fixed bed reactors, with NH3For reducing gas when, simulated flue gas are：N (NO)=n (NH3)=500ppm,N2For balanced gas, gas overall flow rate in reaction, is maintained to be 1.5L/min, reaction velocity is 30000h-1.To anti-
Answer system to carry out temperature programming, be warming up to respectively 90 DEG C, 120 DEG C, 150 DEG C, 180 DEG C, 210 DEG C, 240 DEG C, 270 DEG C, 300 DEG C,
330 DEG C of 9 temperature spots, in gas outlet using the amount of NOx in flue gas analyzer test reaction system, urge so as to calculate
The denitration performance of agent.Denitration performance result is referring to Fig. 2.
Experimental example 3
In order to further study SO2In the mechanism of catalyst surface effect, the Ce to 270 DEG C of sulfur poisonings0.1- ferrous manganese ore
Catalyst carries out thermogravimetric (TG) analysis, and (in figure, beside every curve, arrow is pointed to and represents that the curve is corresponding as a result as shown in Figure 3
Ordinate).Catalyst weightlessness can be divided into three phases：A (200-500 DEG C), B (500-750 DEG C) and C (>750 DEG C), wherein A
Weightless with C-stage obvious, (500-750 DEG C) of B is weightless substantially.Wherein, the main predominantly (NH for occurring in 200～500 DEG C4)2SO4And NH4HSO4Thermal decomposition, in this sulfur resistive experimentation carried out at 270 DEG C before showing, sulfur poisoning is deposited on catalysis
The ammonium sulfate major part on agent surface has all been decomposed, only a small amount of to remain, therefore weightlessness is not obvious；In heating-up temperature it is
When 800 DEG C or so substantially weightlessness is produced as part metals salt cures the metal sulfate decomposition to be formed；Most
For obvious B-stage (500-750 DEG C), then the weightlessness that the decomposition of cerous sulfate causes is likely due to.
Test result indicate that, after ferrous manganese ore doping Ce, resistance to SO_2 increases.This is the Mn bases catalysis due to Ce modifications
Agent shows significant resistance to SO_2, and after doping Ce, the deposition of ammonium sulfate and the sulfation of active sites are all suppressed significantly.Such as Fig. 4
It is shown, in SO2Under atmosphere, surface sulfate is preferentially formed on Ce, and little a, part occurs on the MnOx of chief active position
Lewis acidic sites are retained to make a return journey and complete SCR absorption denitrations.In addition, doping Ce reduces NH4+It is covalent with sulfate ion
Bond energy, result in ammonium sulfate and easily decomposes.SO2Catalyst poisoning is made to be primarily due to SO2In catalyst surface and NH3Formed
Ammonium sulfate blocks its space, affects its catalysis activity.And the addition of Ce makes SO2Absorption is in the form of bulk sulfate in CeO2
On preferentially form, reduce the sulfation of the chief active position such as Fe, Mn.Ce itself has certain modification simultaneously,
The heat endurance of catalyst surface sulfate can be reduced, promotes which to decompose.Therefore doping Ce effectively prevents surface sulfuric acid
The formation of salt, improves the sulfur resistance of Ce modified catalysts.
Embodiments of the present invention are described in detail above in association with accompanying drawing, but the present invention is not limited to described reality
Apply mode.For one of ordinary skill in the art, in the range of the principle and technological thought of the present invention, to these enforcements
Mode carries out various changes, modification, replacement and deformation and still falls within protection scope of the present invention.
Claims (7)
1. a kind of preparation method with high resistance to SO_2 iron ore denitrating catalyst, it is characterised in that the preparation method include with
Lower step：
1）The ferromanganese ore particles of 35～65 mesh are filtered out after will be ferromanganese mineral powder broken；In the ferromanganese ore, the content of Mn is not low
In 50wt%；
2）By Ce（NO3）3·6H2O is obtained Ce in being dissolved in distilled water（NO3）3Solution；
3）By step 1）The ferromanganese ore particles input step 2 for filtering out）The Ce of preparation（NO3）3In solution, constant temperature is carried out to which
Stirring in water bath is heated to solvent evaporating completely and obtains mixture；
4）By step 3）Obtained mixture is transferred in baking oven, carries out 0.5-1h freeze-day with constant temperature at 100 ~ 120 DEG C；
5）By step 4）After drying, the mixture of gained is placed in 550 DEG C of 3 ~ 4h of calcining of Jing in Muffle furnace, finally from calcined product
Filter out 35～65 purpose products to obtain final product with high resistance to SO_2 iron ore denitrating catalyst.
2. a kind of preparation method with high resistance to SO_2 iron ore denitrating catalyst according to claim 1, its feature exist
In, in the high resistance to SO_2 iron ore denitrating catalyst incorporation of Ce be high resistance to SO_2 iron ore denitrating catalyst quality 5 ~
15%。
3. a kind of preparation method with high resistance to SO_2 iron ore denitrating catalyst according to claim 1, its feature exist
In the step 3）In water bath with thermostatic control agitating heating refer to the aqueous solution prepared using constant temperature magnetite agitator, and 60 ~ 70
DEG C stirred in water bath heating 0.5-1.5h.
4. the high resistance to SO_2 iron ore denitrating catalyst that the preparation method described in any one of claims 1 to 3 is prepared.
5. application of the high resistance to SO_2 iron ore denitrating catalyst described in claim 4 in terms of industrial sulfur resistive denitration.
6. the sulfur resistance method of testing of the high resistance to SO_2 iron ore denitrating catalyst described in claim 4, it is characterised in that bag
Include following steps：
1）High resistance to SO_2 iron ore denitrating catalyst and natural ferrous manganese ore catalyst are seated in into stainless steel fixed bed respectively anti-
Answer in device, with NH3 as reducing gas, carry out reduction reaction；
2）Temperature programming is carried out respectively to reactor, the corresponding denitration efficiency of temperature is measured and calculated with flue gas analyzer；
3）SO2 is each led into, and the amount of a smoke outlet NOx is measured every 30min, and is calculated denitration efficiency respectively；
4）SO2 be passed through the time for 450min when stop being passed through SO2, measure smoke outlet NOx every 30min again afterwards
Amount, and calculate denitration efficiency.
7. the sulfur resistance method of testing of resistance to SO_2 iron ore denitrating catalyst according to claim 6, it is characterised in that
The step 2）Temperature be 270 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611033383.8A CN106552643B (en) | 2016-11-17 | 2016-11-17 | iron ore denitration catalyst with high sulfur resistance and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611033383.8A CN106552643B (en) | 2016-11-17 | 2016-11-17 | iron ore denitration catalyst with high sulfur resistance and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106552643A true CN106552643A (en) | 2017-04-05 |
| CN106552643B CN106552643B (en) | 2019-12-10 |
Family
ID=58443387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611033383.8A Active CN106552643B (en) | 2016-11-17 | 2016-11-17 | iron ore denitration catalyst with high sulfur resistance and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106552643B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435189A (en) * | 2018-03-27 | 2018-08-24 | 山东师范大学 | A kind of samarium doping iron-based denitrating catalyst and preparation method thereof with water resistant sulfur resistance |
| CN108579756A (en) * | 2018-05-18 | 2018-09-28 | 常州大学 | One main laminaria shape Mn-Fe bimetallic oxide load Cs eO2Catalyst and preparation method and application |
| CN109821545A (en) * | 2019-01-24 | 2019-05-31 | 内蒙古科技大学 | A kind of rare-earth tailing/concentrate prepares the method and its application of denitrating catalyst |
| CN112844447A (en) * | 2020-12-31 | 2021-05-28 | 四川大学 | Zeolite-based denitration catalyst and preparation method and application thereof |
| CN115301281A (en) * | 2022-08-17 | 2022-11-08 | 四川大学 | Sulfur-resistant and water-resistant catalyst, and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214670A (en) * | 2015-10-14 | 2016-01-06 | 东南大学 | The preparation being low temperature support type denitrating catalyst in carrier with former iron ore and method of testing |
| CN105854894A (en) * | 2016-04-15 | 2016-08-17 | 东南大学 | Modified iron-ore SCR denitration catalyst and preparing method and application thereof |
-
2016
- 2016-11-17 CN CN201611033383.8A patent/CN106552643B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214670A (en) * | 2015-10-14 | 2016-01-06 | 东南大学 | The preparation being low temperature support type denitrating catalyst in carrier with former iron ore and method of testing |
| CN105854894A (en) * | 2016-04-15 | 2016-08-17 | 东南大学 | Modified iron-ore SCR denitration catalyst and preparing method and application thereof |
Non-Patent Citations (3)
| Title |
|---|
| RUIBEN JIN等: "The role of cerium in the improved SO2 tolerance for NO reduction with NH3 over Mn-Ce/TiO2 catalyst at low temperature", 《APPLIED CATALYSIS B: ENVIRONMENTAL》 * |
| 查贤斌等: "铁矿石低温催化脱硝性能研究", 《工程热物理学报》 * |
| 胡将军: "《火电厂污染物排放控制技术丛书 烟气脱汞》", 31 March 2016, 中国电力出版社 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435189A (en) * | 2018-03-27 | 2018-08-24 | 山东师范大学 | A kind of samarium doping iron-based denitrating catalyst and preparation method thereof with water resistant sulfur resistance |
| CN108435189B (en) * | 2018-03-27 | 2021-01-08 | 山东师范大学 | Samarium-doped iron-based denitration catalyst with water resistance and sulfur resistance and preparation method thereof |
| CN108579756A (en) * | 2018-05-18 | 2018-09-28 | 常州大学 | One main laminaria shape Mn-Fe bimetallic oxide load Cs eO2Catalyst and preparation method and application |
| CN108579756B (en) * | 2018-05-18 | 2020-09-18 | 常州大学 | Laminaria-shaped Mn-Fe bimetal oxide loaded CeO2Catalyst, preparation method and application |
| CN109821545A (en) * | 2019-01-24 | 2019-05-31 | 内蒙古科技大学 | A kind of rare-earth tailing/concentrate prepares the method and its application of denitrating catalyst |
| CN109821545B (en) * | 2019-01-24 | 2022-03-18 | 内蒙古科技大学 | Method for preparing denitration catalyst from rare earth tailings/concentrate and application of denitration catalyst |
| CN112844447A (en) * | 2020-12-31 | 2021-05-28 | 四川大学 | Zeolite-based denitration catalyst and preparation method and application thereof |
| CN115301281A (en) * | 2022-08-17 | 2022-11-08 | 四川大学 | Sulfur-resistant and water-resistant catalyst, and preparation method and application thereof |
| CN115301281B (en) * | 2022-08-17 | 2023-05-26 | 四川大学 | Sulfur-resistant water-resistant catalyst, and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106552643B (en) | 2019-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106552643A (en) | It is a kind of that there is high resistance to SO_2 iron ore denitrating catalyst and its preparation method and application | |
| CN101920213B (en) | Low temperature SCR denitration catalyst taking organic metal framework as carrier and preparation method thereof | |
| CN105327698B (en) | Using titanium-containing blast furnace slag as the preparation method of the Novel SCR catalyst for denitrating flue gas of carrier | |
| CN104056658B (en) | Low-temperature sulfur-resistant denitration catalyst and preparing method thereof | |
| CN104722292B (en) | Halloysite/lanthanon perovskite composite SCR catalyst and preparation method thereof | |
| CN106732581B (en) | Ru/CeTiO for low-temperature SCR reactionxProcess for preparing catalyst | |
| CN105498782A (en) | Preparing method for cubic morphology nano-composite metal oxide catalyst CeO2-Co3O4 | |
| CN111450841A (en) | Reduction method simultaneous desulfurization and denitrification catalyst prepared from red mud and preparation method thereof | |
| CN109092323A (en) | Low-temperature SCR catalyst for denitrating flue gas and its preparation method and application | |
| CN103949267B (en) | A kind of iron-based composite oxides denitrating catalyst and its preparation method and application | |
| CN105214670B (en) | Preparation and method of testing using former iron ore as the middle low temperature support type denitrating catalyst of carrier | |
| CN102000572B (en) | Method for preparing denitration catalyst by performing selective catalytic reduction on CuMgAl composite oxide | |
| CN108993528A (en) | Modified low-temperature denitration SCR catalyst of a kind of iron and preparation method thereof | |
| CN105854894A (en) | Modified iron-ore SCR denitration catalyst and preparing method and application thereof | |
| CN109966853A (en) | A kind of compound solid waste matrix activated carbon and preparation method thereof for flue gas desulfurization and denitrification | |
| CN102861565A (en) | Aluminum oxide-loaded cerium oxide catalyst and preparation method and application thereof | |
| CN103877986A (en) | Ferro-tungsten composite oxide denitrification catalyst with flower petal structure and preparation method and application of ferro-tungsten composite oxide denitrification catalyst with flower petal structure | |
| CN106238064A (en) | A kind of ferrum cerium red mud composite oxides denitration catalyst agent material and preparation method thereof | |
| CN108187661A (en) | A kind of high temperature SCR denitration with anti-high concentration K poisoning performances and preparation method thereof | |
| CN104001497B (en) | A kind of wide temperature window denitrating catalyst and its preparation method and application | |
| CN109772265A (en) | A kind of red mud from sintering process modified activated carbon and preparation method thereof for flue gas desulfurization and denitrification | |
| CN106902823B (en) | A kind of core-shell structure denitrating catalyst and preparation method thereof of the resistance to sulfur poisoning of chlorine-resistant | |
| CN106732521A (en) | A kind of preparation method of high-performance cerium zirconium sosoloid material | |
| CN108837820A (en) | A kind of Ce-NbOx/ mesoporous TiO 2 high-efficiency denitration catalyst and preparation method thereof | |
| CN107185555B (en) | Preparation method of copper-doped cerium sulfide-based nanocrystalline denitration catalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |