CN105289602A - Ceria-zirconia composite oxide-loaded perovskite type catalyst with sulfur resistance and preparation method of catalyst - Google Patents
Ceria-zirconia composite oxide-loaded perovskite type catalyst with sulfur resistance and preparation method of catalyst Download PDFInfo
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- CN105289602A CN105289602A CN201510865765.6A CN201510865765A CN105289602A CN 105289602 A CN105289602 A CN 105289602A CN 201510865765 A CN201510865765 A CN 201510865765A CN 105289602 A CN105289602 A CN 105289602A
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Abstract
The invention discloses a ceria-zirconia composite oxide-loaded perovskite type catalyst with sulfur resistance. The catalyst comprises an active component, a noble metal promoter and a carrier, wherein the active component is perovskite La1-xSrxMnO3 which accounts for 4 to 14wt% of the catalyst, and x is equal to 0-0.5; the noble metal promoter accounts for 0.01 to 1wt% of the catalyst; the carrier is a Ce1-yZryO2 composite oxide which accounts for 85 to 95% of the catalyst, and y is equal to 0.1-0.5. A preparation process comprises two times of loading: firstly, loading perovskite to the Ce1-yZryO2 composite oxide, and then loading the noble metal promoter to the Ce1-yZryO2 composite oxide. The catalyst provided by the invention reaches relatively high catalyst reactivity during a catalytic combustion process of VOCs, and has relatively high anti-sulfur-poisoning property.
Description
Technical field
The invention belongs to the preparing technical field of volatile organic compounds by catalytic combustion catalyst, be specifically related to a kind of cerium zirconium compound oxide load perovskite type catalyst with sulfur resistance and preparation method thereof.
Background technology
Volatile organic matter (VolatileOrganicCompounds, VOCs) is the common pollution gas of a class, is mainly derived from petrochemical industry, pharmacy, prints, sprays paint, the industry such as shoemaking.Such material not only can cause the environmental problem such as ozone hole and photochemical fog, and the mankind can also be made to produce the symptoms such as nauseating, headache, tic, stupor, even threat to life.The method of its catalytic combustion is had efficiently, the advantage such as energy-saving and environmental protection, product be easy to control, be considered to one of best treatment technology.The catalyst of efficient stable is the key of the method.
LaMO in non-noble metal composite oxide
3(M is transition metal, as Mn, Fe, Co etc.) perovskite catalyst catalytic combustion VOCs has more stable catalytic activity.But its less specific area limits its catalytic activity, loaded on the larger carrier of specific area, thus expanded decentralization, obtained higher catalytic activity.The report that this type of catalyst is used for catalytic combustion VOCs is less, only has patent CN200810225984.8 that La based perovskite is loaded to nanoscale CeO
2soot particulate in upper process exhaust gas from diesel vehicle.In addition, inevitably there is SO in industrial waste gas
2, H
2s etc., A, B position meeting of perovskite and reaction of Salmon-Saxl generate the species such as sulfate, and destroy perovskite structure, make catalyst poisoning, therefore the sulfur resistance of catalyst is also particularly important.For the process of sulfur-containing organic waste gas, the catalyst in patent CN201010510998.1 is active component with noble metal, adds many oxide, effectively reduce SO to catalyst
2, H
2s etc. and the effect of noble metal, obtain stronger sulfur resistance with this, so its catalyst does not have a fixed structure, and structure-activity relationship is unclear.For LaMnO
3, use Sr
2+replace part La
3+the La obtained
1-xsr
xmnO
3after, due to Sr
2+with the target product SrSO of reaction of Salmon-Saxl
4generate more difficult, catalyst sulfur resistance is strengthened; Simultaneously part Mn ion conversion is Mn
4+, form cation vacancy, and active oxygen transmission quantity also gets a promotion, catalytic activity strengthens.In catalyst, add the precious metal element of trace, the sulfur resistance of catalyst is further strengthened.
CeO
2unique crystal structure, reversible redox active, make it have very strong oxygen storage capacity, be thus widely used in catalyst field.To CeO
2middle interpolation ZrO
2the CeO formed
2-ZrO
2solid solution, its heat endurance and oxygen storage capacity have obvious lifting, and particle diameter, specific area and CeO
2compare and substantially remain unchanged, be about 10nm and 100m respectively
2/ g.
Summary of the invention
For the process of sulfur-bearing VOCs, the object of the present invention is to provide a kind of cerium zirconium compound oxide load perovskite type catalyst with sulfur resistance and preparation method thereof, give a kind of with CeO
2-ZrO
2composite oxides are carrier, to add the La of noble metal
1-xsr
xmnO
3perovskite is the catalyst of active component, makes the catalyst reaction activity that catalyst reaches higher in catalytic combustion VOCs process, and has stronger anti-sulfur poisonous performance.
To achieve these goals, technical scheme of the present invention is:
Have a cerium zirconium compound oxide load perovskite type catalyst for sulfur resistance, this catalyst is made up of following component:
Active component: perovskite La
1-xsr
xmnO
3, account for the 4wt%-14wt% of catalyst, wherein x=0-0.5;
Precious metal additive M: be one or more in Pt, Pd, Rh and Ru, in simple substance quality, accounts for the 0.01wt%-1wt% of catalyst;
Carrier: Ce
1-yzr
yo
2composite oxides, account for catalyst 85wt%-95wt%, wherein y=0.1-0.5.
Described catalyst Formula is M
a/ (La
1-xsr
xmnO
3)
b/ Ce
1-yzr
yo
2, wherein a, b represent M and La respectively
1-xsr
xmnO
3account for the mass percent of catalyst.
Described method for preparing catalyst is:
Step (1): configure certain density Ce (NO
3)
3, Zr (NO
3)
3precursor liquid, adopts coprecipitation to prepare a series of Ce by a certain percentage after mixing
1-yzr
yo
2(y=0.1-0.5) composite oxides;
Step (2): the deionized water solution configuring manganese nitrate, strontium nitrate, lanthanum nitrate in proportion, adds Ce after mixing
1-yzr
yo
2composite oxide carrier, stirs, dipping 8-24 hour;
Step (3): the mixed liquor drying of step (2) is obtained (La
1-xsr
xmnO
3)/Ce
1-yzr
yo
2;
Step (4): with a certain amount of noble metal precursor immersion stain (La
1-xsr
xmnO
3)/Ce
1-yzr
yo
2, make its simple substance account for the 0.01wt%-1wt% of catalyst;
Step (5): the mixed liquor of step (4) is drying to obtain catalyst M
a/ (La
1-xsr
xmnO
3)
b/ Ce
1-yzr
yo
2;
Wherein, the drying condition in step (3) and step (5) is: first dry 8-24 hour at 90 DEG C-110 DEG C, then is put in Muffle furnace and calcines 1-4 hour under 400-800 DEG C of air conditions.
After adopting such scheme, advantage of the present invention:
The first, catalytic activity is high: LaMnO
3for catalytic combustion VOCs, itself there is certain catalytic performance, use Sr
2+replace part La
3+after, perovskite La
1-xsr
xmnO
3middle generation cation vacancy, and wherein active oxygen transmission quantity also increases, and facilitates catalytic cycle; Support C eO
2-ZrO
2powerful oxygen storage capacity itself is conducive to catalytic reaction, and its larger specific area also makes active component decentralization higher in addition, improves catalytic activity greatly.
The second, catalyst resistance to SO_2 is strong: Sr and reaction of Salmon-Saxl is more difficult generates SrSO in active component
4, perovskite structure can be kept to stablize, and the Pt added is highly dispersed in carrier, reducing active component directly contacts with sulphur, improves the sulfur resistance of catalyst.
Accompanying drawing explanation
Fig. 1 is VOCs catalyst combustion reaction flow chart;
Fig. 2 is prepared M
a/ (La
1-xsr
xmnO
3)
b/ Ce
1-yzr
yo
2sample is to the catalytic combustion activity curve of toluene, and wherein (a), (b), (c) are respectively embodiment 1, embodiment 2, embodiment 3 sample to the catalytic activity curve of toluene;
Fig. 3 is prepared M
a/ (La
1-xsr
xmnO
3)
b/ Ce
1-yzr
yo
2sample is passing into SO
2when catalytic combustion activity curve to toluene, wherein (d), (e), (f) are respectively embodiment 1, embodiment 2, embodiment 3 sample passing into SO
2when catalytic activity curve to toluene;
Fig. 4-6 is passing into SO for each embodiment sample
2front and back are to the catalytic activity curve to toluene.
Detailed description of the invention
Below in conjunction with Fig. 1 to Fig. 6 and embodiment, the present invention is described in more detail.
Wherein, coordinate shown in Fig. 1,1 is air steel cylinder, and 2 is SO
2steel cylinder, 3 is mass flowmenters, and 4 is thermostat water baths, and 5 is VOCs generators, and 6 is mixed bottles, and 7 is tubular reactors, and 8 is gas chromatographs, and coordinates shown in Fig. 2-6.
Step (1): configure certain density Ce (NO
3)
3, Zr (NO
3)
3precursor liquid, adopts coprecipitation to prepare a series of Ce by a certain percentage after mixing
1-yzr
yo
2(y=0.1-0.5) composite oxides;
Step (2): the deionized water solution configuring manganese nitrate, strontium nitrate, lanthanum nitrate in proportion, adds Ce after mixing
1-yzr
yo
2composite oxide carrier, stirs, dipping 8-24 hour;
Step (3): the mixed liquor drying of step (2) is obtained (La
1-xsr
xmnO
3)/Ce
1-yzr
yo
2;
Step (4): with a certain amount of noble metal precursor immersion stain (La
1-xsr
xmnO
3)/Ce
1-yzr
yo
2, make its simple substance account for the 0.01%-1wt% of catalyst;
Step (5): the mixed liquor of step (4) is drying to obtain catalyst M
a/ (La
1-xsr
xmnO
3)
b/ Ce
1-yzr
yo
2;
Wherein, the drying condition in step (3) and step (5) is: first dry 8-24 hour at 90 DEG C-110 DEG C, then puts to forward in Muffle furnace and calcine 1-4 hour under 400-800 DEG C of air conditions.
Embodiment 1: the catalyst described in the present embodiment, comprises following composition:
Active component: perovskite La
0.9sr
0.1mnO
3, account for the 5%wt% of catalyst;
Auxiliary agent: Pt, accounts for the 0.01wt% of catalyst;
Carrier: Ce
0.9zr
0.1o
2composite oxides, account for the 94.99wt% of catalyst.
Concrete preparation process is:
Step (1): Ce:Zr=9:1 is by certain density Ce (NO in proportion
3)
3, Zr (NO
3)
3precursor liquid mixes, and adopts coprecipitation to prepare Ce
0.9zr
0.1o
2composite oxides;
Step (2): La:Sr:Mn=0.9:0.1:1 configures the deionized water solution of manganese nitrate, strontium nitrate, lanthanum nitrate in proportion, adds Ce after mixing
0.9zr
0.1o
2composite oxide carrier, stirs, and floods 24 hours;
Step (3): by the mixed liquor of step (2) first at 90 DEG C dry 12 hours, then forward in Muffle furnace and calcine 2 hours under 500 DEG C of air conditionses, obtain (La
0.9sr
0.1mnO
3)
5/ Ce
0.9zr
0.1o
2;
Step (4): with a certain amount of chloroplatinic acid precursor liquid dipping (La
0.9sr
0.1mnO
3)
5/ Ce
0.9zr
0.1o
2, make its simple substance account for the 0.01wt% of catalyst;
Step (5): by the mixed liquor of step (4) first at 100 DEG C dry 16 hours, then forward in Muffle furnace and calcine 3 hours under 600 DEG C of air conditionses, can catalyst be obtained through grinding sub-sieve: Pt
0.01/ (La
0.9sr
0.1mnO
3)
5/ Ce
0.9zr
0.1o
2.
Get 0.2g catalyst sample, react with toluene and air Mixture for analog gas, at toluene concentration 2000mg/m
3, under air speed 10000mL/ (gh) condition, test the catalytic oxidation performance of sample to toluene.
During sulfur resistance test, with toluene, SO
2be analog gas with air Mixture, at toluene concentration 2000mg/m
3, SO
2concentration 200mg/m
3, under air speed 10000mL/ (gh) condition, test the catalytic oxidation performance of sample to toluene.
Embodiment 2: the catalyst described in the present embodiment, comprises following composition:
Active component: perovskite La
0.8sr
0.2mnO
3, account for the 14wt% of catalyst;
Auxiliary agent: Pt, accounts for the 0.05wt% of catalyst;
Carrier: Ce
0.7zr
0.3o
2composite oxides, account for catalyst 85.95%.
Concrete preparation process is:
Step (1): Ce:Zr=7:3 is by certain density Ce (NO in proportion
3)
3, Zr (NO
3)
3precursor liquid mixes, and adopts coprecipitation to prepare Ce
0.7zr
0.3o
2composite oxides;
Step (2): La:Sr:Mn=0.8:0.2:1 configures the deionized water solution of manganese nitrate, strontium nitrate, lanthanum nitrate in proportion, adds Ce after mixing
0.7zr
0.3o
2composite oxide carrier, stirs, and floods 24 hours;
Step (3): by the mixed liquor of step (2) first at 100 DEG C dry 15 hours, then forward in Muffle furnace and calcine 3 hours under 600 DEG C of air conditionses, obtain (La
0.8sr
0.2mnO
3)
14/ Ce
0.7zr
0.3o
2;
Step (4): with a certain amount of chloroplatinic acid precursor liquid dipping (La
0.8sr
0.2mnO
3)
14/ Ce
0.7zr
0.3o
2, make its simple substance account for the 0.05wt% of catalyst;
Step (5): by the mixed liquor of step (4) first at 110 DEG C dry 16 hours, then forward in Muffle furnace and calcine 3 hours under 550 DEG C of air conditionses, can catalyst be obtained through grinding sub-sieve: Pt
0.05/ (La
0.8sr
0.2mnO
3)
14/ Ce
0.7zr
0.3o
2.
Test condition is consistent with embodiment 1.
Embodiment 3: the catalyst described in the present embodiment, comprises following composition:
Active component: perovskite La
0.6sr
0.4mnO
3, account for the 10wt% of catalyst;
Auxiliary agent: Pt, accounts for the 0.5wt% of catalyst;
Carrier: Ce
0.5zr
0.5o
2composite oxides, account for catalyst 89.5wt%.
Step (1): Ce:Zr=5:5 is by certain density Ce (NO in proportion
3)
3, Zr (NO
3)
3precursor liquid mixes, and adopts coprecipitation to prepare Ce
0.5zr
0.5o
2composite oxides;
Step (2): La:Sr:Mn=0.6:0.4:1 configures the deionized water solution of manganese nitrate, strontium nitrate, lanthanum nitrate in proportion, adds Ce after mixing
0.5zr
0.5o
2composite oxide carrier, stirs, and floods 24 hours;
Step (3): by the mixed liquor of step (2) first at 110 DEG C dry 18 hours, then forward in Muffle furnace and calcine 3 hours under 700 DEG C of air conditionses, obtain (La
0.6sr
0.4mnO
3)
10/ Ce
0.5zr
0.5o
2;
Step (4): with a certain amount of chloroplatinic acid precursor liquid dipping (La
0.6sr
0.4mnO
3)
10/ Ce
0.5zr
0.5o
2, make its simple substance account for the 0.5wt% of catalyst;
Step (5): by the mixed liquor of step (4) first at 110 DEG C dry 20 hours, then forward in Muffle furnace and calcine 3 hours under 600 DEG C of air conditionses, can catalyst be obtained through grinding sub-sieve: Pt
0.5/ (La
0.6sr
0.4mnO
3)
10/ Ce
0.5zr
0.5o
2.
Test condition is consistent with embodiment 1.
Result shows: do not passing into SO
2time, each embodiment sample all has higher activity to the catalytic oxidation of toluene, and toluene conversion army reaches 96%; When passing into SO
2time, although catalyst activity has decline to a certain degree, substantially can keep the toluene conversion of 85%, reason is SO
2make catalyst fraction component define metal sulfate or disulfate, and the catalyst structure of entirety is stablized, and therefore shows higher toluene conversion and sulfur resistance.
Claims (3)
1. have a cerium zirconium compound oxide load perovskite type catalyst for sulfur resistance, it is characterized in that, this catalyst is made up of following component:
Active component: perovskite La
1-xsr
xmnO
3, account for the 4wt%-14wt% of catalyst, wherein x=0-0.5;
Precious metal additive M: be one or more in Pt, Pd, Rh and Ru, in simple substance quality, accounts for the 0.01wt%-1wt% of catalyst;
Carrier: Ce
1-yzr
yo
2composite oxides, account for catalyst 85wt%-95wt%, wherein y=0.1-0.5.
2. a kind of cerium zirconium compound oxide load perovskite type catalyst with sulfur resistance according to claim 1, it is characterized in that, catalyst Formula is M
a/ (La
1-xsr
xmnO
3)
b/ Ce
1-yzr
yo
2, wherein a, b represent M and La respectively
1-xsr
xmnO
3account for the mass percent of catalyst.
3. a kind of cerium zirconium compound oxide load perovskite type catalyst with sulfur resistance as claimed in claim 1, it is characterized in that, preparation method is:
Step (1): configuration Ce (NO
3)
3, Zr (NO
3)
3precursor liquid, adopts coprecipitation to prepare Ce
1-yzr
yo
2composite oxides, y=0.1-0.5;
Step (2): the deionized water solution of configuration manganese nitrate, strontium nitrate, lanthanum nitrate, adds Ce after mixing
1-yzr
yo
2composite oxide carrier, stirs, dipping 8-24 hour;
Step (3): the mixed liquor drying of step (2) is obtained (La
1-xsr
xmnO
3)/Ce
1-yzr
yo
2;
Step (4): with noble metal precursor immersion stain (La
1-xsr
xmnO
3)/Ce
1-yzr
yo
2, make its simple substance account for the 0.01wt%-1wt% of catalyst;
Step (5): the mixed liquor of step (4) is drying to obtain catalyst M
a/ (La
1-xsr
xmnO
3)
b/ Ce
1-yzr
yo
2;
Wherein, the drying condition in step (3) and step (5) is: first dry 8-24 hour at 90 DEG C-110 DEG C, then is put in Muffle furnace and calcines 1-4 hour under 400-800 DEG C of air conditions.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110479260A (en) * | 2019-09-10 | 2019-11-22 | 福建龙新三维阵列科技有限公司 | The preparation method of high activity noble metal carrier catalyst |
| CN110479261A (en) * | 2019-09-10 | 2019-11-22 | 福建龙新三维阵列科技有限公司 | VOCs catalysis oxidation loaded catalyst and preparation method thereof |
| WO2021043256A1 (en) * | 2019-09-04 | 2021-03-11 | 有研稀土高技术有限公司 | Rare earth manganese/cerium-zirconium-based composite compound, preparation method therefor and application thereof |
| CN113893849A (en) * | 2021-10-29 | 2022-01-07 | 安徽工业大学 | Layered perovskite type catalyst compounding method and composite catalyst |
| WO2022089669A1 (en) * | 2020-10-26 | 2022-05-05 | 苏州大学 | Composite material of strontium-doped ordered mesoporous lanthanum manganite loaded with precious metal palladium, and preparation method therefor and use thereof in catalytic oxidation of toluene |
| CN115382535A (en) * | 2022-09-20 | 2022-11-25 | 潍坊正轩稀土催化材料有限公司 | Preparation method of manganese-based cerium-zirconium solid solution capable of replacing precious metal and being applied to VOC (volatile organic compound) catalyst |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6372686B1 (en) * | 1996-04-10 | 2002-04-16 | Catalytic Solutions, Inc. | Perovskite-type metal oxide compounds and methods of making and using thereof |
| CN101439290A (en) * | 2008-12-31 | 2009-05-27 | 浙江工业大学 | Cellular ceramic type catalyst for catalytic combustion of perovskite as well as preparation and application thereof |
| CN104998655A (en) * | 2015-07-22 | 2015-10-28 | 中国科学院过程工程研究所 | Integral cordierite catalyst and preparation method and application thereof |
-
2015
- 2015-12-01 CN CN201510865765.6A patent/CN105289602A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6372686B1 (en) * | 1996-04-10 | 2002-04-16 | Catalytic Solutions, Inc. | Perovskite-type metal oxide compounds and methods of making and using thereof |
| CN101439290A (en) * | 2008-12-31 | 2009-05-27 | 浙江工业大学 | Cellular ceramic type catalyst for catalytic combustion of perovskite as well as preparation and application thereof |
| CN104998655A (en) * | 2015-07-22 | 2015-10-28 | 中国科学院过程工程研究所 | Integral cordierite catalyst and preparation method and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| MIHAI ALIFANTI ET AL.: ""Ceria-based oxides as supports for LaCoO3 perovskite; catalysts for total oxidation of VOC"", 《APPLIED CATALYSIS B: ENVIRONMENTAL》 * |
| 沈柳倩: ""钙钛矿型催化剂催化燃烧VOCs的活性、抗毒性和稳定性研究"", 《中国优秀硕士学位论文全文数据库（工程科技Ⅰ辑）》 * |
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| WO2021043256A1 (en) * | 2019-09-04 | 2021-03-11 | 有研稀土高技术有限公司 | Rare earth manganese/cerium-zirconium-based composite compound, preparation method therefor and application thereof |
| JP2022518137A (en) * | 2019-09-04 | 2022-03-14 | 有研稀土高技術有限公司 | Rare earth manganese / cerium-zirconium-based composite compounds, their preparation methods and uses |
| JP7346578B2 (en) | 2019-09-04 | 2023-09-19 | 有研稀土高技術有限公司 | Rare earth manganese/cerium-zirconium based composite compounds, their preparation methods and applications |
| CN110479260A (en) * | 2019-09-10 | 2019-11-22 | 福建龙新三维阵列科技有限公司 | The preparation method of high activity noble metal carrier catalyst |
| CN110479261A (en) * | 2019-09-10 | 2019-11-22 | 福建龙新三维阵列科技有限公司 | VOCs catalysis oxidation loaded catalyst and preparation method thereof |
| CN110479261B (en) * | 2019-09-10 | 2022-07-12 | 福建龙新三维阵列科技有限公司 | VOCs catalytic oxidation supported catalyst and preparation method thereof |
| WO2022089669A1 (en) * | 2020-10-26 | 2022-05-05 | 苏州大学 | Composite material of strontium-doped ordered mesoporous lanthanum manganite loaded with precious metal palladium, and preparation method therefor and use thereof in catalytic oxidation of toluene |
| CN113893849A (en) * | 2021-10-29 | 2022-01-07 | 安徽工业大学 | Layered perovskite type catalyst compounding method and composite catalyst |
| CN115382535A (en) * | 2022-09-20 | 2022-11-25 | 潍坊正轩稀土催化材料有限公司 | Preparation method of manganese-based cerium-zirconium solid solution capable of replacing precious metal and being applied to VOC (volatile organic compound) catalyst |
| CN115382535B (en) * | 2022-09-20 | 2023-10-31 | 潍坊正轩稀土催化材料有限公司 | Preparation method of manganese-based cerium-zirconium solid solution capable of replacing noble metal and applied to VOC (volatile organic compound) catalyst |
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Application publication date: 20160203 |