CN108126743A - SAPO-18 adulterates the preparation method and application of Cu and Tb composite catalysts - Google Patents
SAPO-18 adulterates the preparation method and application of Cu and Tb composite catalysts Download PDFInfo
- Publication number
- CN108126743A CN108126743A CN201810093509.3A CN201810093509A CN108126743A CN 108126743 A CN108126743 A CN 108126743A CN 201810093509 A CN201810093509 A CN 201810093509A CN 108126743 A CN108126743 A CN 108126743A
- Authority
- CN
- China
- Prior art keywords
- sapo
- molecular sieves
- concentration
- cusapo
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- 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
- B01D53/90—Injecting reactants
-
- 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
- B01J29/82—Phosphates
- B01J29/84—Aluminophosphates containing other elements, e.g. metals, boron
- B01J29/85—Silicoaluminophosphates (SAPO compounds)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- 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
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
Abstract
The preparation method and application of 18 loaded Cus of SAPO and Tb composite catalysts, for catalytic removal nitrogen oxides.18 molecular sieves of SAPO are prepared by hydro-thermal method, by itself and NH4Cl is exchanged, and prepares ammonia type NH418 molecular sieves of/SAPO, then by NH418 molecular sieves of/SAPO add in copper nitrate and terbium nitrate solution, by multiple ion-exchange, prepare high-specific surface area (550m2/ g~600m2/ g) compound 18 molecular sieve catalysts of Tb CuSAPO.The made catalyst of the present invention is in the range of wider temperature (150 DEG C~600 DEG C), to high-speed (10,000h‑1~200,000h‑1), high O2Concentration (10vl.%~20vl.%), high H2O content (5wt%~10wt%), NH3Content (300ppm~1000ppm) and low NO concentration (300ppm~1000ppm) pollutant have high catalytic removal effect (NO conversion ratios 30%~95%).And the catalyst kept NO initial conversions under wider temperature range in 100 hours.
Description
Technical field
The present invention relates to a kind of SAPO-18 doping Cu and Tb composite catalysts for catalytic removal NO preparation method and
Its selective catalysis eliminates the application of NO.
Background technology
Current automobile also becomes the primary pollution source of city environmental pollution while walking-replacing tool convenient as people
One of.Early in nineteen fifties and the seventies, Los Angeles,U.S has occurred photochemical fog event twice and successively leads
Cause people's illness of the whole city 3/4ths, because its serious social destructiveness be referred to as " ten overall situation hazardous accidents of twentieth century " it
One, and the exhaust gas of vehicular emission is to cause one of principal element of this accident.In recent years with each big city vapour in China
The quick increase of vehicle ownership, tail gas pollution have resulted in strong influence to people's lives.The composition of vehicle exhaust is various,
Mainly include oxycarbide (CO), hydrocarbon (CH) and nitrogen oxides (NOx) etc. Multiple components.Wherein nitrogen oxides can
To enter internal, main harm, the alveolar and ramuscule gas for damaging lung airways deep by the eyes of human body or respiratory tract
Pipe.Since the surface moisture content of alveolar is higher, after nitrogen oxides enters alveolar, nitrogen oxides can be rapidly dissolved in alveolar
On, and in alveolar accumulation 80% meltage, other part nitrogen oxides can be converted into dinitrogen tetroxide.Wherein nitrogen dioxide
It can be with the water function and then generation nitric acid and nitrous acid substance on human respiratory tract surface, strong impulse with dinitrogen tetroxide
With the lung tissue of corrosion human body, the permeability for making human body alveolar membrane and capillary is greatly impacted, leads to pulmonary edema.In addition,
The nitrite formed at alveolar can be penetrated into blood of human body, and vascular dilation and blood pressure is caused to reduce, and nitrite
It is reacted with hemoglobin and generates ferrihemoglobin, reduce the oxygen content in blood.In addition, there are an oxygen of high concentration in blood
Change nitrogen also can be melted into ferrihemoglobin by hemoglobin oxygen, also result in body anoxic.Therefore, as nitrogen oxides pollution owner
In the presence of will be with nitrogen dioxide, the lung function of human body can be mainly influenced, human body is caused to suffer from the lesions such as pulmonary edema；And work as nitrogen oxidation
Object pollutant mainly with nitric oxide in the presence of, ferrihemoglobin content can mainly be caused in human body anoxia, blood to increase, and
And body intoxicating phenomenon is quickly grown at this time, it may appear that methemoglobinemia and nervous centralis damage symptom cause human body
Greatly injury.Finally, NOxA large amount of discharges not only result in human respiratory system's disease, also result in depletion of the ozone layer, light
Chemical fumes and greenhouse effects, and NOxWith SO2The formation of acid rain can equally be caused, cause cultivated land degradation and damage of building etc.,
Therefore reducing the discharge capacity of nitrogen oxides is particularly important.
Due to administering NOxDifficulty is big, control and improvement NOxPollution become during current environmental protection is studied most active subject it
One.There are many eliminate NO both at home and abroad at presentxMethod, wherein NH3Selective Catalytic Reduction of NOxMethod comparative maturity, answered
For vehicle exhaust (stationary source) and thermal power plant (moving source) NOxThe improvement of pollution.NH3- SCR catalysis materials mainly have expensive
4 kinds of metallic catalyst, metal oxide catalyst, molecular sieve catalyst and other catalysis materials systems, wherein, V2O5-WO3-
TiO2System is most widely used, and the system has been commercialized at present, but the exhaust temperature model during operation of diesel vehicle actual load
It is 150~700 DEG C to enclose, V2O5-WO3-TiO2There are low temperature active deficiency, high high-temp stability difference and high temperature V (vanadium) for catalyst system and catalyzing
Volatilization generates secondary pollution problems.
SAPO-18 molecular sieve catalysts 1984, U.S. combinating carbide company (UCC) develop silicoaluminophosphate series point
Son sieve (SAPO-n, n representative structure model).Wherein, what people were attracted attention the most is SAPO-18 molecular sieves.This molecular sieve
MTO catalytic performances are excellent, become the object for falling over each other to develop on catalysis circle, mesh due to its unique structure and physicochemical properties
Before be widely used to the catalytic fields such as coal chemical industry, PETROLEUM PROCESSING and fine chemistry industry.This patent selects thermal stability higher
SAPO-18 molecular sieves are carrier, by SAPO-18, adulterate Cu and Tb, by ion-exchange be prepared into SAPO-18 loaded Cus and
Tb composite catalysts obtain the catalytic removal NO in good wide temperature range (150 DEG C~600 DEG C)xHigh activity and height are steady
Qualitative energy.It is most of using single although CuSAPO-18 also has preferable activity from the point of view of the document just being had been reported that at present
Only copper supported catalyst, reaction temperature is relatively narrow, and stability is poor, and the Tb-CuSAPO-18 catalyst prepared by this patent has
Preferable activity and stability, moreover, the Cu and Tb of SAPO-18 doping at present, is prepared into support type by ion-exchange and urges
The research of agent is less.
This project implementation obtains：Project of national nature science fund project (number：21277008；20777005)；Country's weight
Point research and development plan (No.2017YFC0209905), the subsidy of Beijing's Nsfc Projects (No.8082008) and this
The research contents of a little projects.
Invention content
Disappear the object of the present invention is to provide the preparation of a kind of SAPO-18 loaded Cus and Tb composite catalysts and its for being catalyzed
Except NO pollutants.The catalyst provided can under wide reaction temperature (150 DEG C~600 DEG C), efficiently eliminate NO (30%~
95% NO conversion ratios).Moreover, this catalyst has higher stability.This catalyst preparation process is simple.
The present invention provides a kind of preparation method of the SAPO-18 doping Cu and Tb composite catalysts for catalytic removal NO.
(1) by SAPO-18 molecular sieves and 0.05~0.2molL-1NH4Cl solution 60~80 DEG C of ion exchanges 2~
10h, wherein SAPO-18 molecular sieves and NH4The ratio of Cl is 100g：(0.6mol~3.0mol), the above process repeat 1~3 time,
It is filtered, washed 3~5 times, 100~140 DEG C of dryings 10~obtain for 24 hours NH4/ SAPO-18 molecular sieves.Then uniformly mixing
0.001mol·L-1~0.02molL-1Tb(NO3)3And 0.01molL-1~0.1molL-1Cu (NO3)2Solution, wherein
Tb(NO3)3With Cu (NO3)2Molar ratio is (0.01~2)：1, by NH made above4/ SAPO-18 molecular sieves add in above-mentioned mixed
It closes in liquid, 50~80 DEG C of 2~5h of ion exchange, wherein NH4/ SAPO-18 molecular sieves and Cu (NO3)2Ratio is 100g：
(0.03mol~0.3mol) according to the above process, is repeated 0~2 time, be filtered, washed 3~5 times, 100~140 DEG C of dryings 10~
For 24 hours, 450~600 DEG C of 4~8h of roasting, are made support type Tb-CuSAPO-18 composite catalysts.
(2) catalyst of the present invention is normal pressure 1atm in reaction pressure, (10,000h under high-speed-1~200,000h-1)、
High O2Concentration (10vl.%~20vl.%), high H2O content (0vl.%~10vl.%), NH3Concentration (300ppm~
1000ppm), NO concentration (300ppm~1000ppm) and Balance Air are N2Under the conditions of, in wide temperature range (150 DEG C~600
DEG C) in, there is high catalytic activity (NO conversion ratio=30%~95%)；It is normal pressure 1atm in reaction pressure, under high-speed
(10,000h-1~200,000h-1), high O2Concentration (10vl.%~20vl.%), high H2O content (0vl.%~10vl.%),
NH3Concentration (300ppm~1000ppm), NO concentration (300ppm~1000ppm) and Balance Air are N2Under the conditions of, investigate support type
Compound Tb-CuSAPO-18 catalyst, in a temperature spot of wide temperature section (150 DEG C~600 DEG C), NO is converted in 100 hours
Rate, under the temperature range studied, catalytic activity still maintains high stability, shows high stability.
Description of the drawings
Fig. 1 is Tb-CuSAPO-18-I, Tb-CuSAPO-18-II, Tb- prepared by the embodiment of the present invention 1,2,3 and 4
The XRD diagram of CuSAPO-18-III, Tb-CuSAPO-18-IV catalyst.
Fig. 2 is Tb-CuSAPO-18-I, Tb-CuSAPO-18-II, Tb- prepared by the embodiment of the present invention 1,2,3 and 4
The N of CuSAPO-18-III, Tb-CuSAPO-18-IV catalyst2Absorption/desorption figure.
Fig. 3 is Tb-CuSAPO-18-I, Tb-CuSAPO-18-II, Tb- prepared by the embodiment of the present invention 1,2,3 and 4
NH on CuSAPO-18-III, Tb-CuSAPO-18-IV catalyst3Selective Catalytic Reduction of NO activity.
Fig. 4 is Tb-CuSAPO-18-I, Tb-CuSAPO-18-II, Tb-CuSAPO-18- prepared by the present invention 1,2,3 and 4
The stability of 450 DEG C of reactions 100 hours of III, Tb-CuSAPO-18-IV catalyst.
Specific embodiment
Embodiment 1
(1) silica alumina ratio of the SAPO-18 molecular sieves prepared by is 0.1mol:1mol, by SAPO-18 molecular sieves with
0.05mol·L-1NH4Cl solution is in 60 DEG C of ion exchange 2h, wherein SAPO-18 molecular sieves and NH4The ratio of Cl is 100g：
0.6mol, the above process are repeated 1 times, be filtered, washed 3 times, 100 DEG C of dry 10h obtain NH4/ SAPO-18 molecular sieves.Then
Even mixing 0.001molL-1Tb(NO3)3And 0.01molL-1Cu (NO3)2Solution, wherein Tb (NO3)3With Cu (NO3)2It rubs
Your ratio is 0.1：1, by NH made above4/ SAPO-18 molecular sieves are added in above-mentioned mixed liquor, 50 DEG C of ion exchange 2h,
Middle NH4/ SAPO-18 molecular sieves and Cu (NO3)2Ratio is 100g：0.03mol, is filtered, washed 3 times, 100 DEG C of dry 10h, and 450
DEG C roasting 4h, is made support type Tb-CuSAPO-18-I composite catalysts.
(2) catalyst of the present invention is normal pressure 1atm in reaction pressure, 10,000h under air speed-1, high O2Concentration 10vl.%,
High H2O content 5wt%, NH3A concentration of 300ppm, NH3A concentration of 300ppm and N2Under the conditions of Balance Air, in wide temperature
In range (150 DEG C~600 DEG C), there is high catalytic activity (NO conversion ratio=45%~95%)；It is normal pressure in reaction pressure
1atm, 10,000h under air speed-1, high O2Concentration 10vl.%, high H2O content 5wt%, NH3A concentration of 300ppm, NH3It is a concentration of
300ppm and N2Under the conditions of Balance Air, in wide temperature range (150 DEG C~600 DEG C), there is high catalytic activity (NO
Conversion ratio=45%~95%)；Investigate the compound Tb-CuSAPO-18-I catalyst of support type, wide temperature section (150 DEG C~
600 DEG C) a temperature spot, NO conversion ratios in 100 hours, under the temperature range studied, catalytic activity still maintains high
Stability, show high stability.
Embodiment 2
(1) silica alumina ratio of the SAPO-18 molecular sieves prepared by is 0.2mol:1mol, by SAPO-18 molecular sieves with
0.075mol·L-1NH4Cl solution is in 70 DEG C of ion exchange 3h, wherein SAPO-18 molecular sieves and NH4The ratio of Cl is 100g：
1.2mol, the above process are repeated 2 times, be filtered, washed 4 times, 120 DEG C of dry 15h obtain NH4/ SAPO-18 molecular sieves.Then
Even mixing 0.005molL-1Tb(NO3)3And 0.02molL-1Cu (NO3)2Solution, wherein Tb (NO3)3With Cu (NO3)2It rubs
Your ratio is 0.25：1, by NH made above4/ SAPO-18 molecular sieves are added in above-mentioned mixed liquor, 55 DEG C of ion exchange 3h,
Wherein NH4/ SAPO-18 molecular sieves and Cu (NO3)2Ratio is 100g：0.06mol according to the above process, is repeated 1 times, is filtered, washed
4 times, 120 DEG C of dry 15h, 500 DEG C of roasting 5h, are made support type Tb-CuSAPO-18-II composite catalysts.
(2) catalyst of the present invention is normal pressure 1atm, 360,00h under high-speed in reaction pressure-1, high O2Concentration
(15vl.%), high H2O content (7vl.%), NH3A concentration of a concentration of 500ppm and He of 500ppm, NO is as Balance Air condition
Under, in wide temperature range (150 DEG C~600 DEG C), there is high catalytic activity (NO conversion ratio=45%~95%)；Anti-
Pressure is answered as 360,00h under normal pressure 1atm, high-speed-1, high O2Concentration (15vl.%), high H2O content (7vl.%), NH3Concentration
For 500ppm, NO a concentration of 500ppm and He as Balance Air under the conditions of, investigate support type compound Ce-CuSAPO-18-II catalysis
Agent, in a temperature spot of wide temperature section (150 DEG C~600 DEG C), NO conversion ratios in 100 hours, in the temperature model studied
Under enclosing, catalytic activity still maintains high stability, shows high stability.
Embodiment 3
(1) silica alumina ratio of the SAPO-18 molecular sieves prepared by is 0.2mol:1mol, by SAPO-18 molecular sieves with
0.1mol·L-1NH4Cl solution is in 75 DEG C of ion exchange 6h, wherein SAPO-18 molecular sieves and NH4The ratio of Cl is 100g：
2.0mol, the above process are repeated 2 times, be filtered, washed 4 times, 120 DEG C of dry 20h obtain NH4/ SAPO-18 molecular sieves.Then
Even mixing 0.0075molL-1Tb(NO3)3And 0.05molL-1Cu (NO3)2Solution, wherein Tb (NO3)3With Cu (NO3)2It rubs
Your ratio is 0.15：1, by NH made above4/ SAPO-18 molecular sieves are added in above-mentioned mixed liquor, 60 DEG C of ion exchange 4h,
Wherein NH4/ SAPO-18 molecular sieves and Cu (NO3)2Ratio is 100g：0.15mol according to the above process, is repeated 1 times, is filtered, washed
4 times, 120 DEG C of dry 20h, 500 DEG C of roasting 6h, are made support type Tb-CuSAPO-18-III composite catalysts.
(2) catalyst of the present invention is normal pressure 1atm, 66,000h under high-speed in reaction pressure-1, high O2Concentration
(18vl.%) and high H2O content (8vl.%), NH3A concentration of a concentration of 800ppm and N of 800ppm, NO2As Balance Air condition
Under, in wide temperature range (150 DEG C~600 DEG C), there is high catalytic activity (NO conversion ratio=45%~95%)；Anti-
Pressure is answered as 66,000h under normal pressure 1atm, high-speed-1, high O2Concentration (18vl.%) and high H2O content (8vl.%), NH3Concentration
For 800ppm, NO a concentration of 800ppm and N2Under the conditions of Balance Air, in wide temperature range (150 DEG C~600 DEG C), tool
There is high catalytic activity (NO conversion ratio=45%~95%), investigate the compound Tb-CuSAPO-18-III catalyst of support type,
One temperature spot of wide temperature section (150 DEG C~600 DEG C), NO conversion ratios in 100 hours, under the temperature range studied,
Catalytic activity still maintains high stability, shows high stability.
Embodiment 4
(1) silica alumina ratio of the SAPO-18 molecular sieves prepared by is 0.3mol:1mol, by SAPO-18 molecular sieves with
0.2mol·L-1NH4Cl solution is in 80 DEG C of ion exchange 10h, wherein SAPO-18 molecular sieves and NH4The ratio of Cl is 100g：
3.0mol, the above process are repeated 3 times, be filtered, washed 5 times, 140 DEG C of dryings obtain NH for 24 hours4/ SAPO-18 molecular sieves.Then
Even mixing 0.02molL-1Tb(NO3)3And 0.1molL-1Cu (NO3)2Solution, wherein Tb (NO3)3With Cu (NO3)2Mole
Ratio is 0.2：1, by NH made above4/ SAPO-18 molecular sieves are added in above-mentioned mixed liquor, 80 DEG C of ion exchange 5h, wherein
NH4/ SAPO-18 molecular sieves and Cu (NO3)2Ratio is 100g：0.3mol according to the above process, is repeated 2 times, be filtered, washed 5 times,
For 24 hours, support type Tb-CuSAPO-18-IV composite catalysts are made in 600 DEG C of roasting 8h for 140 DEG C of dryings.
(2) catalyst of the present invention is normal pressure 1atm, 200,000h under high-speed in reaction pressure-1, high O2Concentration
20vl.%, high H2O content 10vl.%, NH3Under the conditions of a concentration of a concentration of 1000ppm and He of 1000ppm, NO is as Balance Air,
In wide temperature range (150 DEG C~600 DEG C), there is high catalytic activity (NO conversion ratio=45%~95%)；It is reacting
Pressure is normal pressure 1atm, 200,000h under high-speed-1, high O2Concentration 20vl.% and high H2Under the conditions of O content 10vl.%, NH3It is dense
Spend for 1000ppm, NO a concentration of 1000ppm and He as Balance Air under the conditions of, investigate support type and answer Tb-CuSAPO-18-IV and urge
Agent, in a temperature spot of wide temperature section (150 DEG C~600 DEG C), NO conversion ratios in 100 hours, in the temperature studied
Under range, catalytic activity still maintains high stability, shows high stability.
Claims (5)
1. a kind of preparation method of SAPO-18 doping Cu and Tb composite catalysts, which is characterized in that include the following steps：
By SAPO-18 molecular sieves and 0.05~0.2molL-1NH4Cl solution in 60~80 DEG C of 2~10h of ion exchange, wherein
SAPO-18 molecular sieves and NH4The ratio of Cl is 100g：(0.6mol~3.0mol), ion exchange process repeat 1~3 time, mistake
Filter, washing 3~5 times, 100~140 DEG C of dryings 10~obtain for 24 hours NH4/ SAPO-18 molecular sieves；Then uniformly mixing
0.001mol·L-1~0.02molL-1Tb(NO3)3And 0.01molL-1~0.1molL-1Cu (NO3)2Solution, wherein
Tb(NO3)3With Cu (NO3)2Molar ratio is (0.01~2)：1, by NH made above4/ SAPO-18 molecular sieves add in above-mentioned mixed
It closes in liquid, 50~80 DEG C of 2~5h of ion exchange, wherein NH4/ SAPO-18 molecular sieves and Cu (NO3)2Ratio is 100g：
(0.03mol~0.3mol), ion exchange repeat 0~2 time, are filtered, washed 3~5 times, 100~140 DEG C of dryings 10~for 24 hours,
450~600 DEG C of 4~8h of roasting, are made support type Tb-CuSAPO-18 composite catalysts.
2. according to the method described in claim 1, it is characterized in that：The silica alumina ratio of SAPO-18 molecular sieves for (0.1mol~
0.3mol):1mol。
3. the compound Tb-CuSAPO-18 catalyst of support type prepared by application method as described in claim 1 is in the application for eliminating NO
In, it is characterised in that：Catalyst is placed in continuous flow fixed bed device and is passed through containing (300ppm~1000ppm) NH3、
(300ppm~1000ppm) NO, (10vl.%~20vl.%) O2(0vl.%~10vl.%) H2It is carried out in the gaseous mixture of O anti-
Should, the remaining gas of gas mixed above is inert gas；Reaction pressure be normal pressure 1atm, reaction velocity 10,000h-1~200,
000h-1, reaction temperature is 150 DEG C~600 DEG C；Ultimate density after a concentration of gas mixing of all gas, concentration are all
Volumn concentration.
4. it applies according to claim 3, it is characterised in that：The 200,000h in the case where reaction pressure is normal pressure 1atm, high-speed-1, high O2Concentration 20vl.% and high H2Under the conditions of O content 10vl.%, NH3A concentration of a concentration of 1000ppm's of 1000ppm, NO is anti-
It answers in gas, the balanced gas in reaction gas is inert gas He or N2。
5. apply according to claim 3, which is characterized in that the stabilization of the compound Tb-CuSAPO-18 catalyst of test load type
Property, in 150 DEG C~600 DEG C temperature ranges, keep a temperature spot, test Tb-CuSAPO-18 catalyst reactions 100 hours
Activity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810093509.3A CN108126743A (en) | 2018-01-31 | 2018-01-31 | SAPO-18 adulterates the preparation method and application of Cu and Tb composite catalysts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810093509.3A CN108126743A (en) | 2018-01-31 | 2018-01-31 | SAPO-18 adulterates the preparation method and application of Cu and Tb composite catalysts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108126743A true CN108126743A (en) | 2018-06-08 |
Family
ID=62430248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810093509.3A Withdrawn CN108126743A (en) | 2018-01-31 | 2018-01-31 | SAPO-18 adulterates the preparation method and application of Cu and Tb composite catalysts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108126743A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111185195A (en) * | 2020-03-20 | 2020-05-22 | 北京工业大学 | Preparation method and application of platinum-supported catalyst taking hydrotalcite as precursor gadolinium terbium nickel magnesium aluminum composite |
| WO2021104264A1 (en) * | 2019-11-25 | 2021-06-03 | Basf Se | Rare earth element containing zeolitic material having the aei framework type and coated monolith substrate |
-
2018
- 2018-01-31 CN CN201810093509.3A patent/CN108126743A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021104264A1 (en) * | 2019-11-25 | 2021-06-03 | Basf Se | Rare earth element containing zeolitic material having the aei framework type and coated monolith substrate |
| CN111185195A (en) * | 2020-03-20 | 2020-05-22 | 北京工业大学 | Preparation method and application of platinum-supported catalyst taking hydrotalcite as precursor gadolinium terbium nickel magnesium aluminum composite |
| CN111185195B (en) * | 2020-03-20 | 2022-07-19 | 北京工业大学 | Preparation method and application of platinum-supported catalyst taking hydrotalcite as precursor gadolinium terbium nickel magnesium aluminum compound |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5185942B2 (en) | Vanadium-free catalyst for selective catalytic reduction and process for producing the same | |
| CN101664690B (en) | Catalyst and preparation method and application thereof | |
| CN102357364B (en) | Preparation for the absorbent charcoal based catalyst of flue gas selective reduction desulfurization | |
| EP0761289A2 (en) | Exhaust gas cleaner and method for cleaning exhaust gas | |
| CN102861565A (en) | Aluminum oxide-loaded cerium oxide catalyst and preparation method and application thereof | |
| CN101905162A (en) | Molecular sieve supported cobalt-based compound oxide catalyst and preparation method and application thereof | |
| CN103372373B (en) | Denitration and purification method of catalytic cracking regenerated flue gas | |
| CN108126743A (en) | SAPO-18 adulterates the preparation method and application of Cu and Tb composite catalysts | |
| CN102631838B (en) | Method for removing NO (nitric oxide) in flue gas | |
| WO2023284304A1 (en) | Manganese-based composite oxide catalyst, preparation method therefor, and use thereof | |
| CN108187737A (en) | SAPO-18 adulterates the preparation method and application of Cu and Ce composite catalysts | |
| IE64035B1 (en) | Method by reduction of nitrogen oxide | |
| CN101664694A (en) | Catalyst for decomposition of N2O and preparation method and application thereof | |
| JP6313560B2 (en) | Nitrogen oxide reduction supported catalyst, method for producing the same, and method for removing nitrogen oxide using the same | |
| CN108246359A (en) | The preparation method and application of SAPO-18 loaded Cus and Er composite catalysts | |
| CN108273549A (en) | The preparation method and application of SAPO-18 loaded Cus and La composite catalysts | |
| CN108325557A (en) | The preparation method and application of SAPO-18 loaded Cus and Yb composite catalysts | |
| CN105964292A (en) | Preparation method and application of Fe-ZSM-5 doped Rh and Er composite catalyst | |
| JP3994862B2 (en) | Exhaust gas purification catalyst and purification method | |
| CN113413909A (en) | Preparation method of catalyst for selective catalytic reduction of NOx in oxygen-enriched environment | |
| JP5285459B2 (en) | Exhaust gas purification catalyst and exhaust gas purification method | |
| KR101419041B1 (en) | A method for low-temperature reduction of nitrous oxide using a reductant over platinum group bi-metallic catalysts containing copper as a primary component | |
| KR20100064926A (en) | Zeolite catalyst for removing nitrogen oxides, method for preparing the same, and removing method of nitrogen oxides using the same | |
| TWI766429B (en) | Catalyst and method for manufacturing the same and method for converting no to no2 | |
| CN112169831A (en) | Holmium and copper composite oxide modified Ce-SAPO-34 molecular sieve denitration catalyst and preparation method thereof |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180608 |