CN110327968A - A kind of catalyst and preparation method thereof of purifying volatile organic matter - Google Patents
A kind of catalyst and preparation method thereof of purifying volatile organic matter Download PDFInfo
- Publication number
- CN110327968A CN110327968A CN201910728151.1A CN201910728151A CN110327968A CN 110327968 A CN110327968 A CN 110327968A CN 201910728151 A CN201910728151 A CN 201910728151A CN 110327968 A CN110327968 A CN 110327968A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- volatile organic
- organic matter
- preparation
- carrier
- 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/80—Mixtures of different zeolites
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
- B01J29/10—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y containing iron group metals, noble metals or copper
- B01J29/12—Noble metals
- B01J29/126—Y-type faujasite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
- B01J29/74—Noble metals
- B01J29/7415—Zeolite Beta
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2202/00—Combustion
- F23G2202/60—Combustion in a catalytic combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention discloses a kind of catalyst and preparation method thereof of purifying volatile organic matter, this method includes carrier selection, aluminium oxide supports Cu preparation, prepared by catalyst coat slurries, catalyst coat coating and calcining process, supported catalyst activity ingredient have γ-Al2O3, CuO, molecular sieve and precious metals pt, Pd, the present invention utilizes the special aperture structure of molecular sieve, captures and adsorb to volatile organic matter, Cu/Al2O3It is prepared using equi-volume impregnating, Cu/Al2O3It can be used as the load matrix of precious metals pt, Pd, uniform load is on carrier, catalytic action is risen to volatile organic matter, the introducing of Cu facilitates the initiation temperature for further decreasing catalyst to volatile organic matter, makes reaction more rapidly, catalyst of the invention is a kind of low temperature active catalyst for catalytic combustion, the expense of external heat source can be reduced, energy saving, noble metal dosage have peer-level with commercially available, are conducive to the popularization and use of catalyst.
Description
Technical field
The present invention relates to catalyst technical fields, are to be related to a kind of catalysis of purifying volatile organic matter more specifically
Agent and preparation method thereof.
Background technique
Volatile organic matter (VOC) includes alkane, aromatic hydrocarbon, alkene, alcohols, ketone, halogenated hydrocarbons etc., and main source is raw
Living, industry, electronics etc..Most of VOC is toxic, odorous, and there are also carcinogenicities by some VOC, generates pole to human health
Big harm, or even cause photochemical fog.The hazardous accidents of VOC also increase year by year in recent years, and country also increasingly payes attention to ring
Guarantor's problem, thus the purification treatment technology of VOC has become a research hotspot in environmental catalysis field.
VOC processing method mainly include active carbon adsorption, solution absorption method, condensation method, directly burning, catalysis burning,
The technologies such as biodegrade, plasma oxidation, photocatalytic oxidation.Various methods are because of spies such as VOC type, concentration, discharging modes
Point, the requirement for handling VOC also have different advantage and disadvantage.
Catalysis burning is one of the technology of most effective processing volatile organic matter at present, has low energy consumption (operating temperature
Lower than 500 DEG C), high-efficient (transformation efficiency up to 95% or more) and the advantages that object without secondary pollution, be widely used in practical life
In production.The core of catalytic combustion technology is the exploitation of catalyst, current market catalyst still based on noble metal (Pt/Pd),
But noble metal is relatively expensive.Generally organic pollutant is risen using the catalytic oxidant coating that noble metal is prepared as active constituent at present
Temperature drift phenomenon is fired, in practice device, needs external heat source to provide certain temperature to catalyst bed, reaches catalyst
To ignition operating temperature, catalyst light-off temperature is lower, and external heat source energy supply is lower, can energy saving, therefore develop one kind
Initiation temperature is low, relative inexpensiveness volatile organic matter catalyst has certain competitive advantage on the market.
Summary of the invention
It is an object of the invention to overcome drawbacks described above in the prior art, a kind of urging for purifying volatile organic matter is provided
Agent and preparation method thereof has lower catalysis burning initiation temperature to volatile organic matters such as toluene, propylene, can reduce
The expense of external heat source, energy saving.
To achieve the above object, the first aspect of the present invention provides a kind of system of the catalyst of purifying volatile organic matter
Preparation Method, comprising the following steps:
(1) it prepares aluminium oxide and supports Cu: using equi-volume impregnating, aluminium oxide being poured into copper nitrate solution, dipping is pre-
If after the time, heating water bath is dry, is calcined after drying, obtain Cu/Al2O3；
(2) catalyst coat slurries are configured: weighing corresponding Cu/Al2O3It is dissolved into deionized water with molecular sieve, and
Nitrate containing precious metals pt, Pd is added in another deionized water and is diluted, dilution latter two solution is mixed to get mutually
The mixed solution ball mill ball milling to fineness D90 is later 8~20um by mixed solution, and it is molten to adjust mixing after ball milling
Catalyst coat slurries are made in pH value, viscosity and the solid content of liquid；
(3) catalyst coat coats: catalyst coat slurries being uniformly coated to the surface of carrier, remove carrier table later
The extra catalyst coat slurries in face, and place and dried in air；
(4) roast: by drying and the carrier equipped with catalyst coat is first put into baking oven and is dried, and is then transferred in furnace high
Temperature calcining, is cooled to room temperature, obtains a kind of low temperature active catalyst for catalytic combustion.
As preferred embodiment, in step (1), need first to determine that the amount of the absorption water of aluminium oxide and determination support
Amount weighs copper nitrate by 5%~10% amount calculating that CuO accounts for aluminium oxide, and is dissolved into deionized water and obtains copper nitrate solution.
As preferred embodiment, in step (1), drying temperature is 80 DEG C~150 DEG C, and drying time is 2~6h,
Calcination temperature is 500 DEG C~650 DEG C, and calcination time is 2~4h.
As preferred embodiment, the molecular sieve is set as beta-molecular sieve, Y zeolite molecular sieve or combinations thereof, and described point
The dosage of son sieve is 0.05g/in3~0.5g/in3。
As preferred embodiment, in step (2), the ratio of the precious metals pt and Pd are 1:4~6:1, preceding body
Body is 15% platinum nitrate palladium nitrate solution, and total dosage of the precious metals pt and Pd are 10g/ft3~100g/ft3。
As preferred embodiment, in step (2), the pH value of mixed solution is adjusted using nitric acid or acetic acid, makes it
PH value controls between 3.5~4.5, by adding deionized water to adjust the solid content of catalyst coat slurries, makes its solid content control
System is between 32%~38%.
As preferred embodiment, the carrier is set as cordierite honeycomb ceramic carrier or FeCr metal alloy carries
Body.
As preferred embodiment, in step (3), the total coated weight of coating is 50g/l~200g/l.
As preferred embodiment, in step (4), drying temperature is 80 DEG C~150 DEG C, and drying time is 2~4h,
Calcination temperature is 450 DEG C~650 DEG C, and calcination time is 2~4h.
The second aspect of the present invention provides a kind of catalyst of purifying volatile organic matter, including carrier, the carrier
Surface be coated with catalyst coat slurries, the catalyst coat slurries drying calcining after form catalyst coat, it is described
It include Cu/Al in catalyst coat2O3, molecular sieve and precious metals pt, Pd.
Compared with prior art, the beneficial effects of the present invention are:
1, preparation method of the invention includes carrier selection, aluminium oxide supports Cu preparation, catalyst coat slurries are prepared, urged
Processes, the supported catalyst activity ingredients such as the coating of agent coating, roasting mainly have γ-Al2O3, CuO, molecular sieve and precious metals pt,
Pd etc., the present invention utilize the special aperture structure of molecular sieve, carry out capture absorption, Cu/Al to volatile organic matter2O3Using etc.
The preparation of volume impregnation method, Cu/Al2O3It can be used as the load matrix of precious metals pt, Pd, uniform load has volatility on carrier
Machine object plays catalytic action, and the introducing of Cu helps to further decrease catalyst to the ignition of the volatile organic matters such as toluene, propylene
Temperature makes reaction more rapidly.
2, catalyst of the invention is a kind of low temperature active catalyst for catalytic combustion, and external heat can be reduced in practice
The expense in source, energy saving reduce operation cost of enterprises, and while excellent effect, noble metal dosage has same water with commercially available
It is flat, be conducive to the popularization and use of catalyst.
Detailed description of the invention
Fig. 1 is conversion ratio-hygrogram of catalysis burning of the catalyst provided in an embodiment of the present invention to toluene.
Specific embodiment
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
The embodiment provides a kind of catalyst of purifying volatile organic matter, including carrier, the carrier
Surface is coated with catalyst coat slurries, and the catalyst coat slurries form catalyst coat after drying calcining, described to urge
It include Cu/Al in agent coating2O3, molecular sieve and precious metals pt, Pd.
The embodiment provides a kind of preparation methods of the catalyst of purifying volatile organic matter, including following step
It is rapid:
(1) it prepares aluminium oxide and supports Cu: using equi-volume impregnating, aluminium oxide being poured into copper nitrate solution, dipping is pre-
If after the time, heating water bath is dry, is calcined after drying, obtain Cu/Al2O3；
In step (1), needs first to determine the amount of the absorption water of aluminium oxide and determine loading, account for aluminium oxide by CuO
5%~10% amount calculating weighs copper nitrate, and is dissolved into deionized water and obtains copper nitrate solution.Wherein, aluminium oxide needs slow
Slowly it pours into copper nitrate solution, is stirred with glass, exclude gas.
In step (1), drying temperature can be 80 DEG C~150 DEG C, preferably 105 DEG C, drying time can for 2~
6h, preferably 4h, calcination temperature can be 500 DEG C~650 DEG C, and preferably 500 DEG C, calcination time can be 2~4h, preferably
2h。
(2) catalyst coat slurries are configured: weighing corresponding Cu/Al2O3It is dissolved into deionized water with molecular sieve, and
Nitrate containing precious metals pt, Pd is added in another deionized water and is diluted, dilution latter two solution is mixed to get mutually
The mixed solution ball mill ball milling to fineness D90 is later 8~20um by mixed solution, and it is molten to adjust mixing after ball milling
Catalyst coat slurries are made in pH value, viscosity and the solid content of liquid；
Before configuring slurries, it is thus necessary to determine that carrier bulk calculates the amount of each substance, is then reconfigured slurries.Wherein, described point
Son sieve can be set to beta-molecular sieve, Y zeolite molecular sieve or combinations thereof, and the dosage of the molecular sieve can be 0.05g/in3~
0.5g/in3。
In step (2), the ratio of the precious metals pt and Pd can be 1:4~6:1, and precursor is 15% platinum nitrate
Total dosage of palladium nitrate solution, the precious metals pt and Pd can be 10g/ft3~100g/ft3。
In step (2), the pH value of mixed solution is adjusted using nitric acid or acetic acid, make the control of its pH value 3.5~4.5 it
Between, by add deionized water adjust catalyst coat slurries solid content, make its solid content control between 32%~38%, it is excellent
It is selected as 35%.
(3) catalyst coat coats: catalyst coat slurries being uniformly coated to the surface of carrier, remove carrier table later
The extra catalyst coat slurries in face, and place and dried in air；
Wherein, the carrier can be preferably arranged to cordierite honeycomb ceramic carrier or FeCr metal alloy carrier.In step
Suddenly in (3), the total coated weight of coating is 50g/l~200g/l, preferably 60g/l~150g/l, more preferably 80g/l~120g/
l。
When specific coating, catalyst coat slurries can be uniformly coated to the surface of carrier by coating machine, then led to
It crosses air compressor and blows away the extra catalyst coat slurries of carrier surface.It, can be by with sky when carrier has plug-hole
Air compressor purging.
(4) roast: by drying and the carrier equipped with catalyst coat is first put into baking oven and is dried, and is then transferred in furnace high
Temperature calcining, is cooled to room temperature, obtains a kind of low temperature active catalyst for catalytic combustion.
In step (4), drying temperature is 80 DEG C~150 DEG C, and preferably 120 DEG C, drying time is 2~4h, preferably
2h, calcination temperature are 450 DEG C~650 DEG C, and preferably 500 DEG C, calcination time is 2~4h, preferably 2h.
It is illustrated below with reference to specific implementation case:
Case is implemented to select the cordierite honeycomb ceramic carrier of 1.5L, and the configuration of catalyst coat slurries is according to coating machine paddle
Basin coats the slurry configuration that a carrier at least needs and determines the total dosage of deionized water in the case of guaranteeing solid content 35% or so,
Each active component of coating is weighed according to coating case load capacity.
Embodiment 1
Coating load 100g/L, wherein molecular sieve dosage 0.3g/in3, beta-molecular sieve: Y molecular sieve 3:1, noble metal dosage
60g/ft3, Pt:Pd 3:1, Cu/Al2O380g/l, wherein CuO accounts for aluminium oxide 5%, to coat 3.5 times of amounts of a carrier
Configure catalyst coat slurries.
Method and step
1, equi-volume impregnating aluminium oxide supports copper: determining the amount of the absorption water of 240g aluminium oxide, accounts for aluminium oxide by CuO
5% amount calculating weighs Cu (NO3)2, it is dissolved into deionized water and obtains Cu (NO3)2Aluminium oxide is poured slowly into solution by solution,
It is stirred with glass, exclusion gas, after time of infusion, heat drying while stirring is placed in water-bath, until moisture steams
Dry, 105 DEG C of baking 4h, obtain Cu/Al in 500 DEG C of calcining 2h in an oven2O3；
2, by Cu/Al2O3With molecular sieve in the ratio dissolution deionized water of 6.8:3, wherein beta-molecular sieve: Y molecular sieve 3:
1；
3, the nitrate of precious metals pt, Pd are slowly dropped in deionized water, stir when being added dropwise, is stirred after dripping
Half an hour；Wherein, Pt:Pd 3:1.
4, the diluted precious metal solution of step 3 is added in the solution of step 2, obtains mixed solution；
5, ball mill ball milling mixing solution D 90 is 8~20um；
6, the slurries after ball milling in the case of stirring, adjust slurries for liquid pH value 4~4.5 with nitric acid, add deionized water
Make solid content probably 35% or so；
7, coat: cordierite honeycomb ceramic carrier is placed in coating machine application chamber body, adjusts relevant parameter, slurries are coated
To the surface of cordierite honeycomb ceramic carrier；
8, the cordierite honeycomb ceramic carrier for being coated with slurries is placed into 3h in air, puts 120 DEG C of baking 2h in an oven,
For the cordierite honeycomb ceramic carrier of drying in 500 DEG C of calcining 2h of Muffle furnace, the low temperature for being cooled to room temperature to obtain targeted loads amount is living
Property catalyst for catalytic combustion.
Embodiment 2
Coating load 100g/L, wherein molecular sieve dosage 0.3g/in3, beta-molecular sieve: Y molecular sieve 3:1, noble metal dosage
40g/ft3, wherein Pt:Pd 3:1, Cu/Al2O380g/l, CuO account for aluminium oxide 10%.
Embodiment 2 difference from example 1 is that: step 1 load 10% Cu/Al2O3, your gold used in step 3
The nitrate for belonging to Pt, Pd is the 2/3 of embodiment 1, the processes such as remaining step such as slurry configurations, coating, calcining and 1 phase of embodiment
Together.
Embodiment 3
Coating load 110g/L, wherein molecular sieve dosage 0.5g/in3, beta-molecular sieve: Y molecular sieve 3:1, noble metal dosage
40g/ft3, wherein Pt:Pd 3:1, Cu/Al2O380g/l, CuO account for aluminium oxide 5%.
Embodiment 3 difference from example 1 is that: precious metals pt used in step 3, Pd nitrate be embodiment
The 2/3 of 1, the processes such as remaining step such as slurry configurations, coating, calcining are same as Example 1.
Active testing
Experimental situation, 200ppm toluene, 10%O2, remaining N2, air speed 30000h-1, it is direct by steel cylinder to test the gas being related to
Supply, toluene used is passed into after vaporizing chamber gasifies with syringe and is passed into mixing chamber, in mixing chamber and other gas mixings
Afterwards, into catalytic combustor, reaction temperature is measured by the thermocouple before catalyst bed, and gas composition analysis is by gas phase after reaction
The analysis of chromatographic mass spectrometry instrument.
As shown in Figure 1, the catalyst prepared according to the preparation method of embodiment 1,2,3 all has the catalysis burning of toluene
Lower T90(conversion ratio 90%) temperature, below 190 DEG C.Wherein, embodiment 1 has best catalytic oxidation combustion to toluene,
No matter T50(conversion ratio up to 50%) and T90It is all better than embodiment 2 and 3, illustrate noble metal and Cu dosage according to embodiment 1,
There is preferable ignition catalytic action to toluene, and embodiment 2 is compared with embodiment 3, embodiment 2 has lower than embodiment 3
T50、T90, but whole discrepancy is little, illustrates that the dosage for improving Cu is more advantageous to and plays coordinative role with Pt, Pd, promotes to toluene
Catalytic oxidation combustion.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of preparation method of the catalyst of purifying volatile organic matter, which comprises the following steps:
(1) it prepares aluminium oxide and supports Cu: using equi-volume impregnating, aluminium oxide being poured into copper nitrate solution, when dipping is default
Between after, heating water bath is dry, calcines after drying, obtains Cu/Al2O3；
(2) catalyst coat slurries are configured: weighing corresponding Cu/Al2O3It is dissolved into deionized water, and will contain with molecular sieve
Precious metals pt, Pd nitrate be added in another deionized water and be diluted, dilution latter two solution is mixed to get mutually mixing
The mixed solution ball mill ball milling to fineness D90 is later 8~20um, and adjusts mixed solution after ball milling by solution
Catalyst coat slurries are made in pH value, viscosity and solid content；
(3) catalyst coat coats: catalyst coat slurries being uniformly coated to the surface of carrier, it is more to remove carrier surface later
Remaining catalyst coat slurries, and place and dried in air；
(4) roast: by drying and the carrier equipped with catalyst coat is first put into baking oven and is dried, and is then transferred to furnace high temperature and forges
It burns, is cooled to room temperature, obtains a kind of low temperature active catalyst for catalytic combustion.
2. a kind of preparation method of the catalyst of purifying volatile organic matter according to claim 1, which is characterized in that
In step (1), needs first to determine the amount of the absorption water of aluminium oxide and determine loading, account for the 5%~10% of aluminium oxide by CuO
Amount calculates and weighs copper nitrate, and is dissolved into deionized water and obtains copper nitrate solution.
3. a kind of preparation method of the catalyst of purifying volatile organic matter according to claim 1, which is characterized in that
In step (1), drying temperature is 80 DEG C~150 DEG C, and drying time is 2~6h, and calcination temperature is 500 DEG C~650 DEG C, when calcining
Between be 2~4h.
4. a kind of preparation method of the catalyst of purifying volatile organic matter according to claim 1, which is characterized in that institute
It states molecular sieve and is set as beta-molecular sieve, Y zeolite molecular sieve or combinations thereof, the dosage of the molecular sieve is 0.05g/in3~0.5g/
in3。
5. a kind of preparation method of the catalyst of purifying volatile organic matter according to claim 1, which is characterized in that
In step (2), the ratio of the precious metals pt and Pd are 1:4~6:1, and precursor is 15% platinum nitrate palladium nitrate solution, institute
The total dosage for stating precious metals pt and Pd is 10g/ft3~100g/ft3。
6. a kind of preparation method of the catalyst of purifying volatile organic matter according to claim 1, which is characterized in that
In step (2), the pH value of mixed solution is adjusted using nitric acid or acetic acid, makes the control of its pH value between 3.5~4.5, by adding
Deionized water adjusts the solid content of catalyst coat slurries, makes the control of its solid content between 32%~38%.
7. a kind of preparation method of the catalyst of purifying volatile organic matter according to claim 1, which is characterized in that institute
It states carrier and is set as cordierite honeycomb ceramic carrier or FeCr metal alloy carrier.
8. a kind of preparation method of the catalyst of purifying volatile organic matter according to claim 1, which is characterized in that
In step (3), the total coated weight of coating is 50g/l~200g/l.
9. a kind of preparation method of the catalyst of purifying volatile organic matter according to claim 1, which is characterized in that
In step (4), drying temperature is 80 DEG C~150 DEG C, and drying time is 2~4h, and calcination temperature is 450 DEG C~650 DEG C, when calcining
Between be 2~4h.
10. a kind of catalyst of purifying volatile organic matter, which is characterized in that including carrier, the surface of the carrier is coated with
Catalyst coat slurries, the catalyst coat slurries form catalyst coat after drying calcining, in the catalyst coat
It include Cu/Al2O3, molecular sieve and precious metals pt, Pd.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910728151.1A CN110327968B (en) | 2019-08-08 | 2019-08-08 | Preparation method of catalyst for purifying volatile organic compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910728151.1A CN110327968B (en) | 2019-08-08 | 2019-08-08 | Preparation method of catalyst for purifying volatile organic compounds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110327968A true CN110327968A (en) | 2019-10-15 |
| CN110327968B CN110327968B (en) | 2022-08-12 |
Family
ID=68148934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910728151.1A Active CN110327968B (en) | 2019-08-08 | 2019-08-08 | Preparation method of catalyst for purifying volatile organic compounds |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110327968B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111450844A (en) * | 2020-04-08 | 2020-07-28 | 广东恒峰蓝环境工程有限公司 | High-temperature-resistant honeycomb ceramic catalyst for purifying benzene series and preparation method thereof |
| CN111822042A (en) * | 2020-05-12 | 2020-10-27 | 上海麦越环境技术有限公司 | Composite metal catalyst for online hydrocarbon removal instrument and preparation method thereof |
| CN114501703A (en) * | 2022-02-09 | 2022-05-13 | 北京小米移动软件有限公司 | Electric heater heating assembly, preparation method thereof and electric heater |
| CN115055162A (en) * | 2022-06-21 | 2022-09-16 | 广东恒峰蓝环境工程有限公司 | Preparation method of zeolite molecular sieve adsorption material |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0629432A1 (en) * | 1993-06-15 | 1994-12-21 | W.R. Grace & Co.-Conn. | Heat transfer packing material with catalyst and/or adsorbent used for regenerative incineration |
| CN101053838A (en) * | 2007-05-23 | 2007-10-17 | 中国科学院山西煤炭化学研究所 | Cordierite-base copper oxide/ gamma-aluminium oxide catalyst used for flue gas denitration and preparation method and application |
| CN107398295A (en) * | 2017-08-03 | 2017-11-28 | 江西国君环保科技有限公司 | A kind of catalyst and preparation method for catalytic purification VOC |
| CN108160102A (en) * | 2018-02-05 | 2018-06-15 | 无锡威孚环保催化剂有限公司 | Catalyst and preparation method based on purification of volatile organic pollutant |
| CN108246312A (en) * | 2018-01-25 | 2018-07-06 | 无锡威孚环保催化剂有限公司 | Catalyst and preparation method with low temperature active purification of volatile organic pollutant |
| CN109225216A (en) * | 2018-11-13 | 2019-01-18 | 无锡威孚环保催化剂有限公司 | The catalyst and preparation method thereof of ageing-resistant volatile organic matter purification |
| CN109985661A (en) * | 2019-04-29 | 2019-07-09 | 无锡威孚环保催化剂有限公司 | Catalyst and preparation method based on purification of volatile organic pollutant |
-
2019
- 2019-08-08 CN CN201910728151.1A patent/CN110327968B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0629432A1 (en) * | 1993-06-15 | 1994-12-21 | W.R. Grace & Co.-Conn. | Heat transfer packing material with catalyst and/or adsorbent used for regenerative incineration |
| CN101053838A (en) * | 2007-05-23 | 2007-10-17 | 中国科学院山西煤炭化学研究所 | Cordierite-base copper oxide/ gamma-aluminium oxide catalyst used for flue gas denitration and preparation method and application |
| CN107398295A (en) * | 2017-08-03 | 2017-11-28 | 江西国君环保科技有限公司 | A kind of catalyst and preparation method for catalytic purification VOC |
| CN108246312A (en) * | 2018-01-25 | 2018-07-06 | 无锡威孚环保催化剂有限公司 | Catalyst and preparation method with low temperature active purification of volatile organic pollutant |
| CN108160102A (en) * | 2018-02-05 | 2018-06-15 | 无锡威孚环保催化剂有限公司 | Catalyst and preparation method based on purification of volatile organic pollutant |
| CN109225216A (en) * | 2018-11-13 | 2019-01-18 | 无锡威孚环保催化剂有限公司 | The catalyst and preparation method thereof of ageing-resistant volatile organic matter purification |
| CN109985661A (en) * | 2019-04-29 | 2019-07-09 | 无锡威孚环保催化剂有限公司 | Catalyst and preparation method based on purification of volatile organic pollutant |
Non-Patent Citations (3)
| Title |
|---|
| LIN LI, ET AL.: "An integrated system of biological and catalytic oxidation for the removal of o-xylene from exhaust", 《CATALYSIS TODAY》 * |
| 丁梦林等: "Pt-Ce掺杂对Cu/Al2O3催化剂结构及性能的影响及其用于苯催化氧化的研究", 《中国稀土学报》 * |
| 王永强等: "一MCM- 41 分子筛负载Pd/La0.8Ce0.2MnO3低温催化燃烧甲苯实验研究", 《中国石油大学学报( 自然科学版)》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111450844A (en) * | 2020-04-08 | 2020-07-28 | 广东恒峰蓝环境工程有限公司 | High-temperature-resistant honeycomb ceramic catalyst for purifying benzene series and preparation method thereof |
| CN111822042A (en) * | 2020-05-12 | 2020-10-27 | 上海麦越环境技术有限公司 | Composite metal catalyst for online hydrocarbon removal instrument and preparation method thereof |
| CN111822042B (en) * | 2020-05-12 | 2023-04-18 | 上海麦越环境技术有限公司 | Composite metal catalyst for online hydrocarbon removal instrument and preparation method thereof |
| CN114501703A (en) * | 2022-02-09 | 2022-05-13 | 北京小米移动软件有限公司 | Electric heater heating assembly, preparation method thereof and electric heater |
| CN115055162A (en) * | 2022-06-21 | 2022-09-16 | 广东恒峰蓝环境工程有限公司 | Preparation method of zeolite molecular sieve adsorption material |
| CN115055162B (en) * | 2022-06-21 | 2023-12-19 | 广东恒峰蓝环境工程有限公司 | Preparation method of zeolite molecular sieve adsorption material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110327968B (en) | 2022-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110327968A (en) | A kind of catalyst and preparation method thereof of purifying volatile organic matter | |
| CN109046345A (en) | A kind of loaded catalyst and its preparation method and application | |
| CN109225216B (en) | Anti-aging catalyst for purifying volatile organic compounds and preparation method thereof | |
| CN108246312A (en) | Catalyst and preparation method with low temperature active purification of volatile organic pollutant | |
| CN110773158B (en) | Material for room-temperature catalytic purification of VOCs (volatile organic compounds) based on metal monoatomic atoms and preparation method thereof | |
| CN105797766B (en) | Integral catalyzer and preparation method thereof for methane catalytic combustion | |
| CN112246250B (en) | Integral catalytic combustion catalyst and preparation method and application thereof | |
| CN108273501A (en) | A kind of vehicle maintenance service three-way catalyst and preparation method thereof | |
| CN107051428B (en) | Preparation method of eggshell type catalyst | |
| CN104148068B (en) | Fast light-off ternary catalyst for automobile tail gas | |
| CN106732579A (en) | Nano-noble metal integer catalyzer for organic exhaust gas low-temperature catalytic burning and preparation method thereof | |
| CN104437473A (en) | Thin shell type catalyst and preparation method thereof | |
| CN108160102A (en) | Catalyst and preparation method based on purification of volatile organic pollutant | |
| CN109174077A (en) | A kind of vehicle maintenance service catalyst and preparation method thereof | |
| CN105126866A (en) | Preparation method of monolithic CO normal-temperature catalyst | |
| CN109395742A (en) | A kind of oxidation catalyst and preparation method thereof of catalysis burning VOCs | |
| CN104271243A (en) | High temperature combustion catalyst | |
| CN104689817B (en) | Composite oxide catalyst for purification of vehicle tail gas and method for preparing composite oxide catalyst for purification of vehicle tail gas | |
| CN107262147B (en) | A kind of Sulfur tolerance catalyst for catalytic combustion and preparation method | |
| CN110404550A (en) | A kind of catalyst and preparation method thereof for volatile organic matter removing | |
| CN102553585B (en) | Sulfur-tolerant catalyst for gas deoxidation as well as preparation method and application thereof | |
| CN113210010B (en) | VOC catalyst coated in different areas and preparation method thereof | |
| CN106824217A (en) | A kind of cellular integrated catalyst and preparation method thereof | |
| CN102728377A (en) | Rare earth perovskite catalyst and preparation method thereof | |
| CN108273500A (en) | A kind of water resistant palladium-based catalyst, the preparation method and the usage of catalysis burning benzene |
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 |