CN108499608A

CN108499608A - A kind of vehicle exhaust denitration support type cordierite catalyst and preparation method thereof

Info

Publication number: CN108499608A
Application number: CN201810272867.0A
Authority: CN
Inventors: 张蕾; 王禹苏; 杨超
Original assignee: Xian University of Science and Technology
Current assignee: Xian University of Science and Technology
Priority date: 2018-03-29
Filing date: 2018-03-29
Publication date: 2018-09-07
Anticipated expiration: 2038-03-29
Also published as: CN108499608B

Abstract

The invention discloses a kind of vehicle exhaust denitration support type cordierite catalysts, including cordierite carrier, it is carried on the oxide of the manganese on cordierite carrier, the oxide of cerium, alkyl glycosides and neopelex, the mass percentage of cordierite is 97.25%~99.15% in the support type cordierite catalyst, the mass percentage of the oxide of manganese is 0.5%~1.5%, the mass percentage of the oxide of cerium is 0.2%~0.8%, the mass percentage of alkyl glycosides is 0.05%~0.15%, the mass percentage of neopelex is 0.1%~0.3%.In addition, the invention also discloses the preparation methods of the support type cordierite catalyst.Support type cordierite catalyst prepared by the present invention efficient can remove the nitrogen oxides discharged in vehicle exhaust, and catalyst inactivation speed is slow.

Description

A kind of vehicle exhaust denitration support type cordierite catalyst and preparation method thereof

Technical field

The invention belongs to vehicle exhaust denitrating catalyst technical fields, and in particular to a kind of vehicle exhaust denitration support type Cordierite catalyst and preparation method thereof.

Background technology

With the raising of the level of urbanization, the growth rate of China's motor vehicle is also rising, and has nowadays been only second to the U.S., at For the whole world second.Atmosphere pollution caused by motor vehicle exhaust emission is also on the rise, CO, HC, NO in urban air_XAnd particle is dirty Dye object mostlys come from vehicle exhaust.

The principle of first generation cleaning catalyst for tail gases of automobiles is carbon monoxide in catalytic exhaust and hydrocarbon and oxygen Solid/liquid/gas reactions generate the carbon dioxide and water that are not polluted to air, are referred to as oxidation catalyst, due to its only to carbon monoxide and Hydrocarbon works also referred to as " two effect catalyst ".But as the raising of environmental protection standard is to the nitrogen in vehicle exhaust The discharge of oxygen compound also proposed new requirement, and " three-way catalyst " that at this moment can reduce oxynitride discharge simultaneously is answered It transports and gives birth to." three-way catalyst " be the mainstream technology of current automobile crisis cleaning catalyst, development experience three phases.The One stage be catalyst is used as using metal platinum (Pt) and rhodium (Rh), but this catalytic unit need to consume a large amount of platinum with Rhodium, and the expensive and easy lead poisoning of this two heavy metal；Second stage is using palladium (Pd) come partial alternative platinum and rhodium, system Alloy catalyst is made to reduce cost；Three phases are Pd-only automotive catalysts." three-way catalyst " has applied 30 years, goes through Three generation techniques have been passed through, but still suffered from be affected by air-fuel ratio in use at present, be easy the problems such as inactivation.

The performance of catalyst carrier seriously affects the service life of catalytic efficiency and catalyst, and good catalyst carrier is answered This has higher mechanical strength, preferable heat resistance, pore structure appropriate, good thermal conductivity, larger specific surface area, no The features such as reacting with lower cost with catalyst.Catalyst carrier generally has granular pattern and cellular from structure type Two kinds.

(1) granular pattern carrier, initial catalyst carrier are all made of granular pattern, be by diameter 3mm~4mm activity Aluminium oxide sphere is accumulated, and catalyst is attached to the surface of alumina globule.The advantages of this carrier be large specific surface area, High mechanical strength, cost are relatively low；But this structure will increase exhaust resistance, and engine power is made to decline, oil consumption rises, and It is easy the pulverization under the impact of high temperature gas flow, and directly results in the decline of denitration power.

(2) exhaust resistance of honeycomb support, honeycomb support only has corpuscular 1/20th, and not only specific surface Long-pending big, high mechanical strength, and have the advantages that high-temperature behavior is good, thermal conductivity is good, thermal capacity is low etc., therefore obtained in catalyst field Extensive use is arrived.Honeycomb support is to be formed by ceramic material, and with the development of science and technology, opened mostly Have issued metallic honeycomb substrate.Honeycomb loads body because its air resistance is smaller, high mechanical strength, thermal stability are good and catalysis is lived The advantages such as property coating is thin have gradually replaced granular pattern carrier.Honeycomb support is divided into as metallic honeycomb substrate and ceramic bee Nest shape carrier, although comparing, metallic honeycomb substrate has apparent advantage, is in particular in metallic carrier geometry specific surface area It is more many higher than ceramic monolith with percent opening.However, its research is started late, there are many more urgent problems to be solved, such as gold Belong to material high temperature resistance and oxidisability it is bad, complex process, cost occupy it is high, at present also still be in the exploratory stage.

Invention content

It is an object of the invention to overcome above-mentioned deficiency in the prior art, a kind of vehicle exhaust denitration support type is provided Cordierite catalyst, the support type cordierite catalyst efficient can remove the nitrogen oxides discharged in vehicle exhaust, catalysis Agent deactivation rate is slow.

To achieve the above object, the technical solution adopted by the present invention is：A kind of vehicle exhaust denitration support type cordierite Catalyst, which is characterized in that including cordierite carrier, be carried on the oxide of the manganese on cordierite carrier, the oxide of cerium, alkane Base glucosides and neopelex, the mass percentage of cordierite is in the support type cordierite catalyst 97.25%~99.15%, the mass percentage of the oxide of manganese is 0.5%~1.5%, the quality percentage of the oxide of cerium Content is 0.2%~0.8%, and the mass percentage of alkyl glycosides is 0.05%~0.15%, neopelex Mass percentage is 0.1%~0.3%.

Above-mentioned vehicle exhaust denitration support type cordierite catalyst, it is characterised in that：The oxide of the manganese is MnO₂、Mn₃O₄And MnO, the oxide of the cerium is Ce₂O₃、CeO₂And Ce₆O₁₁。

Above-mentioned vehicle exhaust denitration support type cordierite catalyst, it is characterised in that：The support type cordierite is urged The mass percentage of cordierite is 98.2% in agent, and the mass percentage of the oxide of manganese is 1%, the oxide of cerium Mass percentage is 0.5%, and the mass percentage of alkyl glycosides is 0.1%, the quality percentage of neopelex Content is 0.2%.

In addition, the present invention also provides a kind of sides preparing above-mentioned vehicle exhaust denitration support type cordierite catalyst Method, which is characterized in that include the following steps：

Step 1: by the cube structure that the length of side is 4mm~6mm is cut at cellular cordierite, and by well cutting Cube structure cordierite be placed in it is spare in vial；

Step 2: the cordierite obtained in step 1 is placed in the dielectric barrier discharge plasma equipped with alkyl glycosides solution In reactor according, and be passed through into dielectric barrier discharge plasma reactor argon gas carry out incipient impregnation 10min~ 20min obtains cordierite catalyst A；The alkyl glycosides impregnated on the cordierite catalyst A accounts for support type cordierite catalyst Mass percentage be 0.025%~0.075%, the power of the dielectric barrier discharge plasma reactor is 60W, institute It is 40mL/min to state and be passed through the flow of argon gas in dielectric barrier discharge plasma reactor；

Step 3: the cordierite catalyst A obtained in step 2 is placed in drying 18min~22min in baking oven, dried The drying temperature of cordierite catalyst A after dry, the baking oven are 95 DEG C~105 DEG C；

Calcination process is carried out Step 4: the cordierite catalyst A after the drying obtained in step 3 is placed in Muffle furnace, Cordierite catalyst A after being roasted；The calcination temperature of the Muffle furnace is 450 DEG C, and the roasting time of the Muffle furnace is 3h；

Step 5: the cordierite catalyst A after the roasting obtained in step 4 is placed in the medium equipped with manganese nitrate solution In barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and is soaked in equal volume Stain 10min~20min obtains cordierite catalyst B；The power of the dielectric barrier discharge plasma reactor is 60W, institute It is 40mL/min to state and be passed through the flow of argon gas in dielectric barrier discharge plasma reactor；

Step 6: the cordierite catalyst B obtained in step 5 is placed in drying 18min~22min in baking oven, dried The drying temperature of cordierite catalyst B after dry, the baking oven are 95 DEG C~105 DEG C；

Calcination process is carried out Step 7: the cordierite catalyst B after the drying obtained in step 6 is placed in Muffle furnace, Cordierite catalyst B after being roasted；The calcination temperature of the Muffle furnace is 450 DEG C, and the roasting time of the Muffle furnace is 3h；

Step 8: the cordierite catalyst B after the roasting obtained in step 7 is placed in Jie equipped with alkyl glycosides solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 10min~20min is impregnated, cordierite catalyst C is obtained；The alkyl glycosides impregnated on the cordierite catalyst C accounts for support type The mass percentage of cordierite catalyst is 0.025%~0.075%, the dielectric barrier discharge plasma reactor Power is 60W, and the flow that argon gas is passed through in the dielectric barrier discharge plasma reactor is 40mL/min；

Step 9: the cordierite catalyst C obtained in step 8 is placed in drying 18min~22min in baking oven, dried The drying temperature of cordierite catalyst C after dry, the baking oven are 95 DEG C~105 DEG C；

Calcination process is carried out Step 10: the cordierite catalyst C after the drying obtained in step 9 is placed in Muffle furnace, Cordierite catalyst C after being roasted；The calcination temperature of the Muffle furnace is 450 DEG C, and the roasting time of the Muffle furnace is 3h；

Step 11: the cordierite catalyst C after the roasting obtained in step 10 is placed in Jie equipped with cerous nitrate solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 10min~20min is impregnated, cordierite catalyst D is obtained；The power of the dielectric barrier discharge plasma reactor is 60W, The flow that argon gas is passed through in the dielectric barrier discharge plasma reactor is 40mL/min；

Step 12: the cordierite catalyst D obtained in step 11 is placed in drying 18min~22min in baking oven, obtain The drying temperature of cordierite catalyst D after to drying, the baking oven are 95 DEG C~105 DEG C；

It is roasted Step 13: the cordierite catalyst D after the drying obtained in step 12 is placed in Muffle furnace Processing, obtaining load has the cordierite catalyst D of the oxide of manganese and the oxide of cerium；The calcination temperature of the Muffle furnace is 450 DEG C, the roasting time of the Muffle furnace is 3h；

Step 14: the load obtained in step 13 to be had to the cordierite catalyst of the oxide of manganese and the oxide of cerium D is placed in the dielectric barrier discharge plasma reactor equipped with neopelex solution, and to dielectric barrier discharge It is passed through argon gas in plasma reactor and carries out incipient impregnation 10min~20min, obtains cordierite catalyst E；The medium The power of barrier discharge plasma reactor is 60W, and argon gas is passed through in the dielectric barrier discharge plasma reactor Flow is 40mL/min；

Step 15: the cordierite catalyst E obtained in step 14 is placed in drying 18min~22min in baking oven, obtain The drying temperature of cordierite catalyst E after to drying, the baking oven are 95 DEG C~105 DEG C；

It is roasted Step 16: the cordierite catalyst E after the drying obtained in step 15 is placed in Muffle furnace Processing, obtains vehicle exhaust denitration support type cordierite catalyst；The calcination temperature of the Muffle furnace is 450 DEG C, the horse Not the roasting time of stove is 3h.

Above-mentioned method, which is characterized in that it is the vertical of 5mm to cut into the length of side at cellular cordierite described in step 1 Cube structure.

Above-mentioned method, which is characterized in that the time of incipient impregnation described in step 2 is 15min, the cordierite The mass percentage that the alkyl glycosides impregnated on catalyst A accounts for support type cordierite catalyst is 0.05%；Institute in step 3 The drying time for stating baking oven is 20min, and the drying temperature of the baking oven is 100 DEG C.

Above-mentioned method, which is characterized in that the time of incipient impregnation described in step 5 is 15min, institute in step 6 The drying time for stating baking oven is 20min, and the drying temperature of the baking oven is 100 DEG C.

Above-mentioned method, which is characterized in that the time of incipient impregnation described in step 8 is 15min, the cordierite The mass percentage that the alkyl glycosides impregnated on catalyst C accounts for support type cordierite catalyst is 0.05%；Institute in step 9 The drying time for stating baking oven is 20min, and the drying temperature of the baking oven is 100 DEG C.

Above-mentioned method, which is characterized in that the time of incipient impregnation described in step 11 is 15min, step 9 ten The drying time of two baking ovens is 20min, and the drying temperature of the baking oven is 100 DEG C.

Above-mentioned method, which is characterized in that the time of incipient impregnation described in step 14 is 15min, step 15 Described in the drying time of baking oven be 20min, the drying temperature of the baking oven is 100 DEG C.

Compared with the prior art, the present invention has the following advantages：

1, the preparation method of vehicle exhaust denitration support type cordierite catalyst of the present invention is first to bear on cordierite Carry carried metal again after alkyl glycosides, the vehicle exhaust denitration support type cordierite catalyst of preparation, with blank cordierite The catalyst that directly on cordierite prepared by carried metal is compared, and the present invention first loads alkyl glycosides system before using carried metal Standby vehicle exhaust denitration support type cordierite catalyst, can make manganese oxide and cerium it is oxide carried more It is even.

2, the preparation method of vehicle exhaust denitration support type cordierite catalyst of the present invention, is that catalyst is placed in Jie 10min~20min, the denitration effect of the catalyst after dipping and normal dipping are impregnated in matter barrier discharge plasma reactor The denitration effect of method dipping for 24 hours is suitable, and the denitration effect relatively using micro-wave oven dipping 1h is high, can effectively save making catalyst Time.

3, vehicle exhaust denitration of the present invention support type cordierite catalyst with not in cordierite carrier surface activating agent system It is standby at the denitration effect of catalyst compare, the present invention can effectively promote catalyst after carrier surface activating agent on a catalyst Antitoxin performance.

4, the preparation method of vehicle exhaust denitration support type cordierite catalyst of the present invention is on a catalyst simultaneously Carrier surface activating agent and metal have loaded after surfactant carried metal again, than the effect for loading 2.5% manganese and 1.2% cerium Fruit is slightly higher, since surfactant is cheap more than metal, can greatly save the cost for preparing catalyst.

5, the honeycomb-like cordierite that uses of the present invention has a porosity, the parallel channels of internal run-through honeycomb shape, these Junior unit grid is separated by very thin partition, has low coefficient of thermal expansion, good adsorption performance, large specific surface area and fire resisting The high advantage of degree, therefore be suitable as preparing the carrier of vehicle exhaust denitration catalyst；In addition, because fluid can pass through Run through upper and lower cavity on honeycomb partition, therefore can be conducive to carry out heat exchange and chemical reaction.

6, surfactant is added during preparing support type cordierite catalyst in the present invention, can be effectively improved and urge The intoxicating phenomenon of agent, improves the service life of catalyst at the catalyst inactivation time effectively slowed down.

7, the present invention uses plasma modification cordierite Supported Manganese as catalyst, in plasma to cordierite material After surface is modified, cordierite can be effectively improved its surface property as carrier, load active component, explore plasma The feasibility that modified cordierite loaded catalyst is applied in terms of denitration, for solve from now on vehicle exhaust denitration technology problem and Comprehensive utilization provides support, and Practical significance is notable.

Below by drawings and examples, the present invention is described in further detail.

Description of the drawings

Fig. 1 is the electron microscopic picture of vehicle exhaust denitration support type cordierite catalyst prepared by the present invention.

Fig. 2 is the electron microscopic picture of blank cordierite.

Fig. 3 is the electron microscopic picture for the catalyst that directly on cordierite prepared by carried metal.

Fig. 4 is that the present invention is impregnated using dielectric barrier discharge plasma reactor dipping with normal infusion process and micro-wave oven The denitration efficiency comparing result figure of method.

Fig. 5 is catalyst prepared by carrier surface activating agent of the present invention and is not prepared in cordierite carrier surface activating agent The denitration effect comparing result figure of catalyst.

A catalyst for Fig. 6 present invention while carrier surface activating agent and the standby catalyst and carried metal preparation of made of metal Denitration effect comparing result figure.

Specific implementation mode

Vehicle exhaust denitration of the present invention is retouched with support type cordierite catalyst and preparation method thereof by embodiment 1-9 It states：

Embodiment 1

The present embodiment vehicle exhaust denitration support type cordierite catalyst, including cordierite carrier, are carried on cordierite The oxide of manganese on carrier, the oxide of cerium, alkyl glycosides and neopelex, the support type cordierite catalysis The mass percentage of cordierite is 98.2% in agent, and the mass percentage of the oxide of manganese is 1%, the matter of the oxide of cerium It is 0.5% to measure percentage composition, and the mass percentage of alkyl glycosides is 0.1%, and the quality percentage of neopelex contains Amount is 0.2%.

The oxide of the manganese is MnO₂、Mn₃O₄And MnO, main component MnO₂；The oxide of the cerium is Ce₂O₃、 CeO₂And Ce₆O₁₁, main component Ce₂O₃。

The preparation method of the present embodiment vehicle exhaust denitration support type cordierite catalyst includes the following steps：

Step 1: by the cube structure that the length of side is 5mm is cut at cellular cordierite, and by cube of well cutting The cordierite of body structure is placed in spare in vial；

Step 2: the cordierite obtained in step 1 is placed in the dielectric barrier discharge plasma equipped with alkyl glycosides solution It in reactor according, and is passed through argon gas into dielectric barrier discharge plasma reactor and carries out incipient impregnation 15min, obtain violet Green stone catalyst A；The quality percentage that the alkyl glycosides impregnated on the cordierite catalyst A accounts for support type cordierite catalyst contains Amount is 0.05%, and the power of the dielectric barrier discharge plasma reactor is 60W, the dielectric barrier discharge plasma The flow that argon gas is passed through in reactor is 40mL/min；

20min is dried Step 3: the cordierite catalyst A obtained in step 2 is placed in baking oven, after being dried The drying temperature of cordierite catalyst A, the baking oven are 100 DEG C；

Step 5: the cordierite catalyst A after the roasting obtained in step 4 is placed in the medium equipped with manganese nitrate solution In barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and is soaked in equal volume Stain 15min obtains cordierite catalyst B；The power of the dielectric barrier discharge plasma reactor is 60W, the medium The flow that argon gas is passed through in barrier discharge plasma reactor is 40mL/min；

20min is dried Step 6: the cordierite catalyst B obtained in step 5 is placed in baking oven, after being dried The drying temperature of cordierite catalyst B, the baking oven are 100 DEG C；

Step 8: the cordierite catalyst B after the roasting obtained in step 7 is placed in Jie equipped with alkyl glycosides solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 15min is impregnated, cordierite catalyst C is obtained；The alkyl glycosides impregnated on the cordierite catalyst C accounts for support type cordierite and urges The mass percentage of agent is 0.05%, and the power of the dielectric barrier discharge plasma reactor is 60W, the medium The flow that argon gas is passed through in barrier discharge plasma reactor is 40mL/min；

20min is dried Step 9: the cordierite catalyst C obtained in step 8 is placed in baking oven, after being dried The drying temperature of cordierite catalyst C, the baking oven are 100 DEG C；

Step 11: the cordierite catalyst C after the roasting obtained in step 10 is placed in Jie equipped with cerous nitrate solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 15min is impregnated, cordierite catalyst D is obtained；The power of the dielectric barrier discharge plasma reactor is 60W, is given an account of The flow that argon gas is passed through in matter barrier discharge plasma reactor is 40mL/min；

20min is dried Step 12: the cordierite catalyst D obtained in step 11 is placed in baking oven, is dried The drying temperature of cordierite catalyst D afterwards, the baking oven are 100 DEG C；

Step 14: the load obtained in step 13 to be had to the cordierite catalyst of the oxide of manganese and the oxide of cerium D is placed in the dielectric barrier discharge plasma reactor equipped with neopelex solution, and to dielectric barrier discharge It is passed through argon gas in plasma reactor and carries out incipient impregnation 15min, obtains cordierite catalyst E；The dielectric impedance is put The power of electro-plasma reactor is 60W, and the flow that argon gas is passed through in the dielectric barrier discharge plasma reactor is 40mL/min；

20min is dried Step 15: the cordierite catalyst E obtained in step 14 is placed in baking oven, is dried The drying temperature of cordierite catalyst E afterwards, the baking oven are 100 DEG C；

Embodiment 2

The present embodiment vehicle exhaust denitration support type cordierite catalyst, including cordierite carrier, are carried on cordierite The oxide of manganese on carrier, the oxide of cerium, alkyl glycosides and neopelex, the support type cordierite catalysis The mass percentage of cordierite is 98.11% in agent, and the mass percentage of the oxide of manganese is 0.8%, the oxide of cerium Mass percentage be 0.7%, the mass percentage of alkyl glycosides is 0.09%, the quality hundred of neopelex It is 0.3% to divide content.

Step 1: by the cube structure that the length of side is 4mm is cut at cellular cordierite, and by cube of well cutting The cordierite of body structure is placed in spare in vial；

Step 2: the cordierite obtained in step 1 is placed in the dielectric barrier discharge plasma equipped with alkyl glycosides solution It in reactor according, and is passed through argon gas into dielectric barrier discharge plasma reactor and carries out incipient impregnation 12min, obtain violet Green stone catalyst A；The quality percentage that the alkyl glycosides impregnated on the cordierite catalyst A accounts for support type cordierite catalyst contains Amount is 0.045%, and the power of the dielectric barrier discharge plasma reactor is 60W, the dielectric barrier discharge plasma The flow that argon gas is passed through in reactor according is 40mL/min；

19min is dried Step 3: the cordierite catalyst A obtained in step 2 is placed in baking oven, after being dried The drying temperature of cordierite catalyst A, the baking oven are 103 DEG C；

Step 5: the cordierite catalyst A after the roasting obtained in step 4 is placed in the medium equipped with manganese nitrate solution In barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and is soaked in equal volume Stain 20min obtains cordierite catalyst B；The power of the dielectric barrier discharge plasma reactor is 60W, the medium The flow that argon gas is passed through in barrier discharge plasma reactor is 40mL/min；

19min is dried Step 6: the cordierite catalyst B obtained in step 5 is placed in baking oven, after being dried The drying temperature of cordierite catalyst B, the baking oven are 97 DEG C；

Step 8: the cordierite catalyst B after the roasting obtained in step 7 is placed in Jie equipped with alkyl glycosides solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 18min is impregnated, cordierite catalyst C is obtained；The alkyl glycosides impregnated on the cordierite catalyst C accounts for support type cordierite and urges The mass percentage of agent is 0.045%, and the power of the dielectric barrier discharge plasma reactor is 60W, is given an account of The flow that argon gas is passed through in matter barrier discharge plasma reactor is 40mL/min；

19min is dried Step 9: the cordierite catalyst C obtained in step 8 is placed in baking oven, after being dried The drying temperature of cordierite catalyst C, the baking oven are 96 DEG C；

Step 11: the cordierite catalyst C after the roasting obtained in step 10 is placed in Jie equipped with cerous nitrate solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 17min is impregnated, cordierite catalyst D is obtained；The power of the dielectric barrier discharge plasma reactor is 60W, is given an account of The flow that argon gas is passed through in matter barrier discharge plasma reactor is 40mL/min；

21min is dried Step 12: the cordierite catalyst D obtained in step 11 is placed in baking oven, is dried The drying temperature of cordierite catalyst D afterwards, the baking oven are 103 DEG C；

Step 14: the load obtained in step 13 to be had to the cordierite catalyst of the oxide of manganese and the oxide of cerium D is placed in the dielectric barrier discharge plasma reactor equipped with neopelex solution, and to dielectric barrier discharge It is passed through argon gas in plasma reactor and carries out incipient impregnation 12min, obtains cordierite catalyst E；The dielectric impedance is put The power of electro-plasma reactor is 60W, and the flow that argon gas is passed through in the dielectric barrier discharge plasma reactor is 40mL/min；

21min is dried Step 15: the cordierite catalyst E obtained in step 14 is placed in baking oven, is dried The drying temperature of cordierite catalyst E afterwards, the baking oven are 103 DEG C；

Embodiment 3

The present embodiment vehicle exhaust denitration support type cordierite catalyst, including cordierite carrier, are carried on cordierite The oxide of manganese on carrier, the oxide of cerium, alkyl glycosides and neopelex, the support type cordierite catalysis The mass percentage of cordierite is 98.38% in agent, and the mass percentage of the oxide of manganese is 0.9%, the oxide of cerium Mass percentage be 0.4%, the mass percentage of alkyl glycosides is 0.07%, the quality hundred of neopelex It is 0.25% to divide content.

Step 1: by the cube structure that the length of side is 6mm is cut at cellular cordierite, and by cube of well cutting The cordierite of body structure is placed in spare in vial；

Step 2: the cordierite obtained in step 1 is placed in the dielectric barrier discharge plasma equipped with alkyl glycosides solution It in reactor according, and is passed through argon gas into dielectric barrier discharge plasma reactor and carries out incipient impregnation 14min, obtain violet Green stone catalyst A；The quality percentage that the alkyl glycosides impregnated on the cordierite catalyst A accounts for support type cordierite catalyst contains Amount is 0.035%, and the power of the dielectric barrier discharge plasma reactor is 60W, the dielectric barrier discharge plasma The flow that argon gas is passed through in reactor according is 40mL/min；

21min is dried Step 3: the cordierite catalyst A obtained in step 2 is placed in baking oven, after being dried The drying temperature of cordierite catalyst A, the baking oven are 95 DEG C；

Step 5: the cordierite catalyst A after the roasting obtained in step 4 is placed in the medium equipped with manganese nitrate solution In barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and is soaked in equal volume Stain 17min obtains cordierite catalyst B；The power of the dielectric barrier discharge plasma reactor is 60W, the medium The flow that argon gas is passed through in barrier discharge plasma reactor is 40mL/min；

18min is dried Step 6: the cordierite catalyst B obtained in step 5 is placed in baking oven, after being dried The drying temperature of cordierite catalyst B, the baking oven are 95 DEG C；

Step 8: the cordierite catalyst B after the roasting obtained in step 7 is placed in Jie equipped with alkyl glycosides solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 14min is impregnated, cordierite catalyst C is obtained；The alkyl glycosides impregnated on the cordierite catalyst C accounts for support type cordierite and urges The mass percentage of agent is 0.035%, and the power of the dielectric barrier discharge plasma reactor is 60W, is given an account of The flow that argon gas is passed through in matter barrier discharge plasma reactor is 40mL/min；

21min is dried Step 9: the cordierite catalyst C obtained in step 8 is placed in baking oven, after being dried The drying temperature of cordierite catalyst C, the baking oven are 105 DEG C；

Step 11: the cordierite catalyst C after the roasting obtained in step 10 is placed in Jie equipped with cerous nitrate solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 12min is impregnated, cordierite catalyst D is obtained；The power of the dielectric barrier discharge plasma reactor is 60W, is given an account of The flow that argon gas is passed through in matter barrier discharge plasma reactor is 40mL/min；

22min is dried Step 12: the cordierite catalyst D obtained in step 11 is placed in baking oven, is dried The drying temperature of cordierite catalyst D afterwards, the baking oven are 96 DEG C；

Step 14: the load obtained in step 13 to be had to the cordierite catalyst of the oxide of manganese and the oxide of cerium D is placed in the dielectric barrier discharge plasma reactor equipped with neopelex solution, and to dielectric barrier discharge It is passed through argon gas in plasma reactor and carries out incipient impregnation 17min, obtains cordierite catalyst E；The dielectric impedance is put The power of electro-plasma reactor is 60W, and the flow that argon gas is passed through in the dielectric barrier discharge plasma reactor is 40mL/min；

19min is dried Step 15: the cordierite catalyst E obtained in step 14 is placed in baking oven, is dried The drying temperature of cordierite catalyst E afterwards, the baking oven are 95 DEG C；

Embodiment 4

The present embodiment vehicle exhaust denitration support type cordierite catalyst, including cordierite carrier, are carried on cordierite The oxide of manganese on carrier, the oxide of cerium, alkyl glycosides and neopelex, the support type cordierite catalysis The mass percentage of cordierite is 97.25% in agent, and the mass percentage of the oxide of manganese is 1.5%, the oxide of cerium Mass percentage be 0.8%, the mass percentage of alkyl glycosides is 0.15%, the quality hundred of neopelex It is 0.3% to divide content.

Step 2: the cordierite obtained in step 1 is placed in the dielectric barrier discharge plasma equipped with alkyl glycosides solution It in reactor according, and is passed through argon gas into dielectric barrier discharge plasma reactor and carries out incipient impregnation 10min, obtain violet Green stone catalyst A；The quality percentage that the alkyl glycosides impregnated on the cordierite catalyst A accounts for support type cordierite catalyst contains Amount is 0.075%, and the power of the dielectric barrier discharge plasma reactor is 60W, the dielectric barrier discharge plasma The flow that argon gas is passed through in reactor according is 40mL/min；

18.5min is dried Step 3: the cordierite catalyst A obtained in step 2 is placed in baking oven, after obtaining drying Cordierite catalyst A, the drying temperature of the baking oven is 98 DEG C；

Step 5: the cordierite catalyst A after the roasting obtained in step 4 is placed in the medium equipped with manganese nitrate solution In barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and is soaked in equal volume Stain 16min obtains cordierite catalyst B；The power of the dielectric barrier discharge plasma reactor is 60W, the medium The flow that argon gas is passed through in barrier discharge plasma reactor is 40mL/min；

21min is dried Step 6: the cordierite catalyst B obtained in step 5 is placed in baking oven, after being dried The drying temperature of cordierite catalyst B, the baking oven are 98 DEG C；

Step 8: the cordierite catalyst B after the roasting obtained in step 7 is placed in Jie equipped with alkyl glycosides solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 10min is impregnated, cordierite catalyst C is obtained；The alkyl glycosides impregnated on the cordierite catalyst C accounts for support type cordierite and urges The mass percentage of agent is 0.075%, and the power of the dielectric barrier discharge plasma reactor is 60W, is given an account of The flow that argon gas is passed through in matter barrier discharge plasma reactor is 40mL/min；

20min is dried Step 9: the cordierite catalyst C obtained in step 8 is placed in baking oven, after being dried The drying temperature of cordierite catalyst C, the baking oven are 98 DEG C；

Step 11: the cordierite catalyst C after the roasting obtained in step 10 is placed in Jie equipped with cerous nitrate solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 10min is impregnated, cordierite catalyst D is obtained；The power of the dielectric barrier discharge plasma reactor is 60W, is given an account of The flow that argon gas is passed through in matter barrier discharge plasma reactor is 40mL/min；

19min is dried Step 12: the cordierite catalyst D obtained in step 11 is placed in baking oven, is dried The drying temperature of cordierite catalyst D afterwards, the baking oven are 102 DEG C；

Step 14: the load obtained in step 13 to be had to the cordierite catalyst of the oxide of manganese and the oxide of cerium D is placed in the dielectric barrier discharge plasma reactor equipped with neopelex solution, and to dielectric barrier discharge It is passed through argon gas in plasma reactor and carries out incipient impregnation 18min, obtains cordierite catalyst E；The dielectric impedance is put The power of electro-plasma reactor is 60W, and the flow that argon gas is passed through in the dielectric barrier discharge plasma reactor is 40mL/min；

18min is dried Step 15: the cordierite catalyst E obtained in step 14 is placed in baking oven, is dried The drying temperature of cordierite catalyst E afterwards, the baking oven are 97 DEG C；

Embodiment 5

The present embodiment vehicle exhaust denitration support type cordierite catalyst, including cordierite carrier, are carried on cordierite The oxide of manganese on carrier, the oxide of cerium, alkyl glycosides and neopelex, the support type cordierite catalysis The mass percentage of cordierite is 98.52% in agent, and the mass percentage of the oxide of manganese is 0.7%, the oxide of cerium Mass percentage be 0.5%, the mass percentage of alkyl glycosides is 0.08%, the quality hundred of neopelex It is 0.2% to divide content.

Step 2: the cordierite obtained in step 1 is placed in the dielectric barrier discharge plasma equipped with alkyl glycosides solution It in reactor according, and is passed through argon gas into dielectric barrier discharge plasma reactor and carries out incipient impregnation 18min, obtain violet Green stone catalyst A；The quality percentage that the alkyl glycosides impregnated on the cordierite catalyst A accounts for support type cordierite catalyst contains Amount is 0.04%, and the power of the dielectric barrier discharge plasma reactor is 60W, the dielectric barrier discharge plasma The flow that argon gas is passed through in reactor is 40mL/min；

22min is dried Step 3: the cordierite catalyst A obtained in step 2 is placed in baking oven, after being dried The drying temperature of cordierite catalyst A, the baking oven are 102 DEG C；

Step 5: the cordierite catalyst A after the roasting obtained in step 4 is placed in the medium equipped with manganese nitrate solution In barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and is soaked in equal volume Stain 10min obtains cordierite catalyst B；The power of the dielectric barrier discharge plasma reactor is 60W, the medium The flow that argon gas is passed through in barrier discharge plasma reactor is 40mL/min；

20min is dried Step 6: the cordierite catalyst B obtained in step 5 is placed in baking oven, after being dried The drying temperature of cordierite catalyst B, the baking oven are 102 DEG C；

Step 8: the cordierite catalyst B after the roasting obtained in step 7 is placed in Jie equipped with alkyl glycosides solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 17min is impregnated, cordierite catalyst C is obtained；The alkyl glycosides impregnated on the cordierite catalyst C accounts for support type cordierite and urges The mass percentage of agent is 0.04%, and the power of the dielectric barrier discharge plasma reactor is 60W, the medium The flow that argon gas is passed through in barrier discharge plasma reactor is 40mL/min；

22min is dried Step 9: the cordierite catalyst C obtained in step 8 is placed in baking oven, after being dried The drying temperature of cordierite catalyst C, the baking oven are 102 DEG C；

20min is dried Step 12: the cordierite catalyst D obtained in step 11 is placed in baking oven, is dried The drying temperature of cordierite catalyst D afterwards, the baking oven are 105 DEG C；

21min is dried Step 15: the cordierite catalyst E obtained in step 14 is placed in baking oven, is dried The drying temperature of cordierite catalyst E afterwards, the baking oven are 99 DEG C；

Embodiment 6

The present embodiment vehicle exhaust denitration support type cordierite catalyst, including cordierite carrier, are carried on cordierite The oxide of manganese on carrier, the oxide of cerium, alkyl glycosides and neopelex, the support type cordierite catalysis The mass percentage of cordierite is 98.3% in agent, and the mass percentage of the oxide of manganese is 1.1%, the oxide of cerium Mass percentage is 0.25%, and the mass percentage of alkyl glycosides is 0.13%, the quality hundred of neopelex It is 0.22% to divide content.

Step 2: the cordierite obtained in step 1 is placed in the dielectric barrier discharge plasma equipped with alkyl glycosides solution It in reactor according, and is passed through argon gas into dielectric barrier discharge plasma reactor and carries out incipient impregnation 16min, obtain violet Green stone catalyst A；The quality percentage that the alkyl glycosides impregnated on the cordierite catalyst A accounts for support type cordierite catalyst contains Amount is 0.065%, and the power of the dielectric barrier discharge plasma reactor is 60W, the dielectric barrier discharge plasma The flow that argon gas is passed through in reactor according is 40mL/min；

22.5min is dried Step 3: the cordierite catalyst A obtained in step 2 is placed in baking oven, after obtaining drying Cordierite catalyst A, the drying temperature of the baking oven is 96 DEG C；

Step 5: the cordierite catalyst A after the roasting obtained in step 4 is placed in the medium equipped with manganese nitrate solution In barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and is soaked in equal volume Stain 14min obtains cordierite catalyst B；The power of the dielectric barrier discharge plasma reactor is 60W, the medium The flow that argon gas is passed through in barrier discharge plasma reactor is 40mL/min；

19min is dried Step 6: the cordierite catalyst B obtained in step 5 is placed in baking oven, after being dried The drying temperature of cordierite catalyst B, the baking oven are 105 DEG C；

Step 8: the cordierite catalyst B after the roasting obtained in step 7 is placed in Jie equipped with alkyl glycosides solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 16min is impregnated, cordierite catalyst C is obtained；The alkyl glycosides impregnated on the cordierite catalyst C accounts for support type cordierite and urges The mass percentage of agent is 0.065%, and the power of the dielectric barrier discharge plasma reactor is 60W, is given an account of The flow that argon gas is passed through in matter barrier discharge plasma reactor is 40mL/min；

19min is dried Step 9: the cordierite catalyst C obtained in step 8 is placed in baking oven, after being dried The drying temperature of cordierite catalyst C, the baking oven are 103 DEG C；

Step 11: the cordierite catalyst C after the roasting obtained in step 10 is placed in Jie equipped with cerous nitrate solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 16min is impregnated, cordierite catalyst D is obtained；The power of the dielectric barrier discharge plasma reactor is 60W, is given an account of The flow that argon gas is passed through in matter barrier discharge plasma reactor is 40mL/min；

18min is dried Step 12: the cordierite catalyst D obtained in step 11 is placed in baking oven, is dried The drying temperature of cordierite catalyst D afterwards, the baking oven are 97 DEG C；

22min is dried Step 15: the cordierite catalyst E obtained in step 14 is placed in baking oven, is dried The drying temperature of cordierite catalyst E afterwards, the baking oven are 102 DEG C；

Embodiment 7

The present embodiment vehicle exhaust denitration support type cordierite catalyst, including cordierite carrier, are carried on cordierite The oxide of manganese on carrier, the oxide of cerium, alkyl glycosides and neopelex, the support type cordierite catalysis The mass percentage of cordierite is 99.15% in agent, and the mass percentage of the oxide of manganese is 0.5%, the oxide of cerium Mass percentage be 0.2%, the mass percentage of alkyl glycosides is 0.05%, the quality hundred of neopelex It is 0.1% to divide content.

Step 2: the cordierite obtained in step 1 is placed in the dielectric barrier discharge plasma equipped with alkyl glycosides solution It in reactor according, and is passed through argon gas into dielectric barrier discharge plasma reactor and carries out incipient impregnation 20min, obtain violet Green stone catalyst A；The quality percentage that the alkyl glycosides impregnated on the cordierite catalyst A accounts for support type cordierite catalyst contains Amount is 0.025%, and the power of the dielectric barrier discharge plasma reactor is 60W, the dielectric barrier discharge plasma The flow that argon gas is passed through in reactor according is 40mL/min；

19min is dried Step 3: the cordierite catalyst A obtained in step 2 is placed in baking oven, after being dried The drying temperature of cordierite catalyst A, the baking oven are 105 DEG C；

Step 5: the cordierite catalyst A after the roasting obtained in step 4 is placed in the medium equipped with manganese nitrate solution In barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and is soaked in equal volume Stain 18min obtains cordierite catalyst B；The power of the dielectric barrier discharge plasma reactor is 60W, the medium The flow that argon gas is passed through in barrier discharge plasma reactor is 40mL/min；

18min is dried Step 6: the cordierite catalyst B obtained in step 5 is placed in baking oven, after being dried The drying temperature of cordierite catalyst B, the baking oven are 96 DEG C；

Step 8: the cordierite catalyst B after the roasting obtained in step 7 is placed in Jie equipped with alkyl glycosides solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 19min is impregnated, cordierite catalyst C is obtained；The alkyl glycosides impregnated on the cordierite catalyst C accounts for support type cordierite and urges The mass percentage of agent is 0.025%, and the power of the dielectric barrier discharge plasma reactor is 60W, is given an account of The flow that argon gas is passed through in matter barrier discharge plasma reactor is 40mL/min；

20min is dried Step 9: the cordierite catalyst C obtained in step 8 is placed in baking oven, after being dried The drying temperature of cordierite catalyst C, the baking oven are 95 DEG C；

Step 11: the cordierite catalyst C after the roasting obtained in step 10 is placed in Jie equipped with cerous nitrate solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 18min is impregnated, cordierite catalyst D is obtained；The power of the dielectric barrier discharge plasma reactor is 60W, is given an account of The flow that argon gas is passed through in matter barrier discharge plasma reactor is 40mL/min；

19min is dried Step 12: the cordierite catalyst D obtained in step 11 is placed in baking oven, is dried The drying temperature of cordierite catalyst D afterwards, the baking oven are 99 DEG C；

Step 14: the load obtained in step 13 to be had to the cordierite catalyst of the oxide of manganese and the oxide of cerium D is placed in the dielectric barrier discharge plasma reactor equipped with neopelex solution, and to dielectric barrier discharge It is passed through argon gas in plasma reactor and carries out incipient impregnation 10min, obtains cordierite catalyst E；The dielectric impedance is put The power of electro-plasma reactor is 60W, and the flow that argon gas is passed through in the dielectric barrier discharge plasma reactor is 40mL/min；

20min is dried Step 15: the cordierite catalyst E obtained in step 14 is placed in baking oven, is dried The drying temperature of cordierite catalyst E afterwards, the baking oven are 96 DEG C；

Embodiment 8

The present embodiment vehicle exhaust denitration support type cordierite catalyst, including cordierite carrier, are carried on cordierite The oxide of manganese on carrier, the oxide of cerium, alkyl glycosides and neopelex, the support type cordierite catalysis The mass percentage of cordierite is 98.9% in agent, and the mass percentage of the oxide of manganese is 0.5%, the oxide of cerium Mass percentage is 0.3%, and the mass percentage of alkyl glycosides is 0.12%, the quality percentage of neopelex Content is 0.18%.

Step 2: the cordierite obtained in step 1 is placed in the dielectric barrier discharge plasma equipped with alkyl glycosides solution It in reactor according, and is passed through argon gas into dielectric barrier discharge plasma reactor and carries out incipient impregnation 17min, obtain violet Green stone catalyst A；The quality percentage that the alkyl glycosides impregnated on the cordierite catalyst A accounts for support type cordierite catalyst contains Amount is 0.06%, and the power of the dielectric barrier discharge plasma reactor is 60W, the dielectric barrier discharge plasma The flow that argon gas is passed through in reactor is 40mL/min；

21.5min is dried Step 3: the cordierite catalyst A obtained in step 2 is placed in baking oven, after obtaining drying Cordierite catalyst A, the drying temperature of the baking oven is 99 DEG C；

Step 5: the cordierite catalyst A after the roasting obtained in step 4 is placed in the medium equipped with manganese nitrate solution In barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and is soaked in equal volume Stain 12min obtains cordierite catalyst B；The power of the dielectric barrier discharge plasma reactor is 60W, the medium The flow that argon gas is passed through in barrier discharge plasma reactor is 40mL/min；

20min is dried Step 6: the cordierite catalyst B obtained in step 5 is placed in baking oven, after being dried The drying temperature of cordierite catalyst B, the baking oven are 105 DEG C；

Step 8: the cordierite catalyst B after the roasting obtained in step 7 is placed in Jie equipped with alkyl glycosides solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 20min is impregnated, cordierite catalyst C is obtained；The alkyl glycosides impregnated on the cordierite catalyst C accounts for support type cordierite and urges The mass percentage of agent is 0.06%, and the power of the dielectric barrier discharge plasma reactor is 60W, the medium The flow that argon gas is passed through in barrier discharge plasma reactor is 40mL/min；

21min is dried Step 9: the cordierite catalyst C obtained in step 8 is placed in baking oven, after being dried The drying temperature of cordierite catalyst C, the baking oven are 99 DEG C；

Step 11: the cordierite catalyst C after the roasting obtained in step 10 is placed in Jie equipped with cerous nitrate solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 20min is impregnated, cordierite catalyst D is obtained；The power of the dielectric barrier discharge plasma reactor is 60W, is given an account of The flow that argon gas is passed through in matter barrier discharge plasma reactor is 40mL/min；

22min is dried Step 12: the cordierite catalyst D obtained in step 11 is placed in baking oven, is dried The drying temperature of cordierite catalyst D afterwards, the baking oven are 100 DEG C；

Step 14: the load obtained in step 13 to be had to the cordierite catalyst of the oxide of manganese and the oxide of cerium D is placed in the dielectric barrier discharge plasma reactor equipped with neopelex solution, and to dielectric barrier discharge It is passed through argon gas in plasma reactor and carries out incipient impregnation 20min, obtains cordierite catalyst E；The dielectric impedance is put The power of electro-plasma reactor is 60W, and the flow that argon gas is passed through in the dielectric barrier discharge plasma reactor is 40mL/min；

18min is dried Step 15: the cordierite catalyst E obtained in step 14 is placed in baking oven, is dried The drying temperature of cordierite catalyst E afterwards, the baking oven are 105 DEG C；

Embodiment 9

The present embodiment vehicle exhaust denitration support type cordierite catalyst, including cordierite carrier, are carried on cordierite The oxide of manganese on carrier, the oxide of cerium, alkyl glycosides and neopelex, the support type cordierite catalysis The mass percentage of cordierite is 98% in agent, and the mass percentage of the oxide of manganese is 1.2%, the matter of the oxide of cerium It is 0.6% to measure percentage composition, and the mass percentage of alkyl glycosides is 0.1%, and the quality percentage of neopelex contains Amount is 0.1%.

18min is dried Step 3: the cordierite catalyst A obtained in step 2 is placed in baking oven, after being dried The drying temperature of cordierite catalyst A, the baking oven are 104 DEG C；

Step 5: the cordierite catalyst A after the roasting obtained in step 4 is placed in the medium equipped with manganese nitrate solution In barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and is soaked in equal volume Stain 19min obtains cordierite catalyst B；The power of the dielectric barrier discharge plasma reactor is 60W, the medium The flow that argon gas is passed through in barrier discharge plasma reactor is 40mL/min；

22min is dried Step 6: the cordierite catalyst B obtained in step 5 is placed in baking oven, after being dried The drying temperature of cordierite catalyst B, the baking oven are 95 DEG C；

Step 8: the cordierite catalyst B after the roasting obtained in step 7 is placed in Jie equipped with alkyl glycosides solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 17min is impregnated, cordierite catalyst C is obtained；The alkyl glycosides impregnated on the cordierite catalyst C accounts for support type cordierite and urges The mass percentage of agent is 0.05%, and the power of the dielectric barrier discharge plasma reactor is 60W, the medium The flow that argon gas is passed through in barrier discharge plasma reactor is 40mL/min；

18min is dried Step 9: the cordierite catalyst C obtained in step 8 is placed in baking oven, after being dried The drying temperature of cordierite catalyst C, the baking oven are 101 DEG C；

Step 11: the cordierite catalyst C after the roasting obtained in step 10 is placed in Jie equipped with cerous nitrate solution In matter barrier discharge plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out in equal volume 14min is impregnated, cordierite catalyst D is obtained；The power of the dielectric barrier discharge plasma reactor is 60W, is given an account of The flow that argon gas is passed through in matter barrier discharge plasma reactor is 40mL/min；

19min is dried Step 12: the cordierite catalyst D obtained in step 11 is placed in baking oven, is dried The drying temperature of cordierite catalyst D afterwards, the baking oven are 95 DEG C；

Step 14: the load obtained in step 13 to be had to the cordierite catalyst of the oxide of manganese and the oxide of cerium D is placed in the dielectric barrier discharge plasma reactor equipped with neopelex solution, and to dielectric barrier discharge It is passed through argon gas in plasma reactor and carries out incipient impregnation 14min, obtains cordierite catalyst E；The dielectric impedance is put The power of electro-plasma reactor is 60W, and the flow that argon gas is passed through in the dielectric barrier discharge plasma reactor is 40mL/min；

21min is dried Step 15: the cordierite catalyst E obtained in step 14 is placed in baking oven, is dried The drying temperature of cordierite catalyst E afterwards, the baking oven are 98 DEG C；

The preparation method of vehicle exhaust denitration support type cordierite catalyst in above-described embodiment 1-9, is in violet Carried metal again, vehicle exhaust denitration support type cordierite catalyst (such as Fig. 1 of preparation are first loaded after alkyl glycosides on green stone It is shown), the catalyst prepared with blank cordierite (as shown in Figure 2) and direct carried metal on cordierite is (such as Fig. 3 institutes Show) it compares, the present invention is urged using the vehicle exhaust denitration for first loading alkyl glycosides preparation before carried metal with support type cordierite Agent, can make manganese oxide and cerium it is oxide carried more uniformly.

As shown in figure 4, the preparation side of the vehicle exhaust denitration support type cordierite catalyst in above-described embodiment 1-9 Method is that catalyst is placed in dipping 10min~20min in dielectric barrier discharge plasma reactor, the catalysis after dipping The denitration effect of agent is suitable with the denitration effect of normal impregnation for 24 hours, and relatively using the denitration effect of micro-wave oven dipping 1h Height, can the effectively save time for making catalyst.

As shown in figure 5, (vehicle exhaust denitration support type violet is green for catalyst of the present invention prepared by above-described embodiment 1-9 Stone catalyst) it is compared with the denitration effect of catalyst not being prepared into cordierite carrier surface activating agent as it can be seen that the present invention exists The antitoxin performance of catalyst can be effectively promoted on catalyst after carrier surface activating agent.

As shown in fig. 6, the preparation side of the vehicle exhaust denitration support type cordierite catalyst in above-described embodiment 1-9 Method, be on a catalyst simultaneously carrier surface activating agent and metal, it can be seen from the figure that after having loaded surfactant again Carried metal, the effect than 2.5% manganese of load and 1.2% cerium is slightly higher, can be with since surfactant is cheap more than metal Greatly save the cost for preparing catalyst.

The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention, every according to the present invention Technical spirit still falls within skill of the present invention to any simple modification, change and equivalent structure transformation made by above example In the protection domain of art scheme.

Claims

1. a kind of vehicle exhaust denitration support type cordierite catalyst, which is characterized in that including cordierite carrier, be carried on violet The oxide of manganese on green stone carrier, the oxide of cerium, alkyl glycosides and neopelex, the support type cordierite The mass percentage of cordierite is 97.25%~99.15% in catalyst, and the mass percentage of the oxide of manganese is 0.5%~1.5%, the mass percentage of the oxide of cerium is 0.2%~0.8%, and the mass percentage of alkyl glycosides is 0.05%~0.15%, the mass percentage of neopelex is 0.1%~0.3%.

2. vehicle exhaust denitration support type cordierite catalyst described in accordance with the claim 1, it is characterised in that：The manganese Oxide is MnO₂、Mn₃O₄And MnO, the oxide of the cerium is Ce₂O₃、CeO₂And Ce₆O₁₁。

3. according to vehicle exhaust denitration support type cordierite catalyst as claimed in claim 1 or 2, it is characterised in that：It is described The mass percentage of cordierite is 98.2% in support type cordierite catalyst, and the mass percentage of the oxide of manganese is 1%, the mass percentage of the oxide of cerium is 0.5%, and the mass percentage of alkyl glycosides is 0.1%, detergent alkylate The mass percentage of sodium sulfonate is 0.2%.

4. a kind of method preparing vehicle exhaust denitration support type cordierite catalyst as claimed in claim 1 or 2, feature It is, includes the following steps：

Step 1: by the cube structure that the length of side is 4mm~6mm, and standing well cutting is cut at cellular cordierite The cordierite of cube structure is placed in spare in vial；

Step 2: it is anti-that the cordierite obtained in step 1 is placed in the dielectric barrier discharge plasma equipped with alkyl glycosides solution It answers in device, and is passed through argon gas into dielectric barrier discharge plasma reactor and carries out incipient impregnation 10min~20min, obtain To cordierite catalyst A；The alkyl glycosides impregnated on the cordierite catalyst A accounts for the quality hundred of support type cordierite catalyst It is 0.025%~0.075% to divide content, and the power of the dielectric barrier discharge plasma reactor is 60W, the medium resistance The flow that argon gas is passed through in gear discharging plasma reactor is 40mL/min；

Step 3: the cordierite catalyst A obtained in step 2 is placed in drying 18min~22min in baking oven, after obtaining drying Cordierite catalyst A, the drying temperature of the baking oven is 95 DEG C~105 DEG C；

Calcination process is carried out Step 4: the cordierite catalyst A after the drying obtained in step 3 is placed in Muffle furnace, is obtained Cordierite catalyst A after roasting；The calcination temperature of the Muffle furnace is 450 DEG C, and the roasting time of the Muffle furnace is 3h；

Step 5: the cordierite catalyst A after the roasting obtained in step 4 is placed in the dielectric impedance equipped with manganese nitrate solution In discharging plasma reactor, and it is passed through argon gas into dielectric barrier discharge plasma reactor and carries out incipient impregnation 10min~20min obtains cordierite catalyst B；The power of the dielectric barrier discharge plasma reactor is 60W, described The flow that argon gas is passed through in dielectric barrier discharge plasma reactor is 40mL/min；

Step 6: the cordierite catalyst B obtained in step 5 is placed in drying 18min~22min in baking oven, after obtaining drying Cordierite catalyst B, the drying temperature of the baking oven is 95 DEG C~105 DEG C；

Calcination process is carried out Step 7: the cordierite catalyst B after the drying obtained in step 6 is placed in Muffle furnace, is obtained Cordierite catalyst B after roasting；The calcination temperature of the Muffle furnace is 450 DEG C, and the roasting time of the Muffle furnace is 3h；

Step 8: the cordierite catalyst B after the roasting obtained in step 7 is placed in the resistance of the medium equipped with alkyl glycosides solution It keeps off in discharging plasma reactor, and is passed through argon gas into dielectric barrier discharge plasma reactor and carries out incipient impregnation 10min~20min obtains cordierite catalyst C；It is green that the alkyl glycosides impregnated on the cordierite catalyst C accounts for support type violet The mass percentage of stone catalyst is 0.025%~0.075%, the power of the dielectric barrier discharge plasma reactor For 60W, the flow that argon gas is passed through in the dielectric barrier discharge plasma reactor is 40mL/min；

Step 9: the cordierite catalyst C obtained in step 8 is placed in drying 18min~22min in baking oven, after obtaining drying Cordierite catalyst C, the drying temperature of the baking oven is 95 DEG C~105 DEG C；

Calcination process is carried out Step 10: the cordierite catalyst C after the drying obtained in step 9 is placed in Muffle furnace, is obtained Cordierite catalyst C after roasting；The calcination temperature of the Muffle furnace is 450 DEG C, and the roasting time of the Muffle furnace is 3h；

Step 11: the cordierite catalyst C after the roasting obtained in step 10 is placed in the resistance of the medium equipped with cerous nitrate solution It keeps off in discharging plasma reactor, and is passed through argon gas into dielectric barrier discharge plasma reactor and carries out incipient impregnation 10min~20min obtains cordierite catalyst D；The power of the dielectric barrier discharge plasma reactor is 60W, described The flow that argon gas is passed through in dielectric barrier discharge plasma reactor is 40mL/min；

Step 12: the cordierite catalyst D obtained in step 11 is placed in drying 18min~22min in baking oven, dried The drying temperature of cordierite catalyst D after dry, the baking oven are 95 DEG C~105 DEG C；

Calcination process is carried out Step 13: the cordierite catalyst D after the drying obtained in step 12 is placed in Muffle furnace, Obtaining load has the cordierite catalyst D of the oxide of manganese and the oxide of cerium；The calcination temperature of the Muffle furnace is 450 DEG C, The roasting time of the Muffle furnace is 3h；

Step 14: thering is the cordierite catalyst D of the oxide of manganese and the oxide of cerium to set the load obtained in step 13 In the dielectric barrier discharge plasma reactor equipped with neopelex solution, and to dielectric barrier discharge etc. from It is passed through argon gas in daughter reactor and carries out incipient impregnation 10min~20min, obtains cordierite catalyst E；The dielectric impedance The power of discharging plasma reactor is 60W, and the flow of argon gas is passed through in the dielectric barrier discharge plasma reactor For 40mL/min；

Step 15: the cordierite catalyst E obtained in step 14 is placed in drying 18min~22min in baking oven, dried The drying temperature of cordierite catalyst E after dry, the baking oven are 95 DEG C~105 DEG C；

Calcination process is carried out Step 16: the cordierite catalyst E after the drying obtained in step 15 is placed in Muffle furnace, Obtain vehicle exhaust denitration support type cordierite catalyst；The calcination temperature of the Muffle furnace is 450 DEG C, the Muffle furnace Roasting time is 3h.

5. according to the method described in claim 4, it is characterized in that, cutting into side at cellular cordierite described in step 1 The cube structure of a length of 5mm.

6. according to the method described in claim 4, it is characterized in that, the time of incipient impregnation described in step 2 be 15min, The mass percentage that the alkyl glycosides impregnated on the cordierite catalyst A accounts for support type cordierite catalyst is 0.05%； The drying time of baking oven described in step 3 is 20min, and the drying temperature of the baking oven is 100 DEG C.

7. according to the method described in claim 4, it is characterized in that, the time of incipient impregnation described in step 5 be 15min, The drying time of baking oven described in step 6 is 20min, and the drying temperature of the baking oven is 100 DEG C.

8. according to the method described in claim 4, it is characterized in that, the time of incipient impregnation described in step 8 be 15min, The mass percentage that the alkyl glycosides impregnated on the cordierite catalyst C accounts for support type cordierite catalyst is 0.05%； The drying time of baking oven described in step 9 is 20min, and the drying temperature of the baking oven is 100 DEG C.

9. according to the method described in claim 4, it is characterized in that, the time of incipient impregnation described in step 11 be The drying time of 15min, 12 baking oven of step 9 are 20min, and the drying temperature of the baking oven is 100 DEG C.

10. according to the method described in claim 4, it is characterized in that, the time of incipient impregnation described in step 14 be The drying time of 15min, baking oven described in step 15 are 20min, and the drying temperature of the baking oven is 100 DEG C.