CN115337946A - Process and device for manufacturing porous ceramic microwave catalyst - Google Patents
Process and device for manufacturing porous ceramic microwave catalyst Download PDFInfo
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- CN115337946A CN115337946A CN202110530794.2A CN202110530794A CN115337946A CN 115337946 A CN115337946 A CN 115337946A CN 202110530794 A CN202110530794 A CN 202110530794A CN 115337946 A CN115337946 A CN 115337946A
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- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
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- B01D53/8687—Organic components
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
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- B01J37/346—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation of electromagnetic wave energy of microwave energy
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Abstract
The invention provides a manufacturing process and a device of a porous ceramic microwave catalyst, wherein the manufacturing process comprises the following steps: mixing microwave catalyst powder with combustible particles to form microwave catalytic combustible particles; mixing the microwave inert ceramic powder with high-temperature volatile substances to form ceramic clusters; mixing microwave catalytic combustible particles with ceramic clusters to form a target mixture; and (3) placing the target mixture in a microwave field for ventilation and heating treatment to form the target porous ceramic microwave catalyst. That is, the porous ceramic microwave catalyst is prepared by uniformly mixing combustible particles fully soaked with catalyst powder and ceramic clusters to form a target mixture and then ventilating and heating the target mixture in a microwave field, and has the advantages of large specific surface, less microwave absorption by a framework, large contact area, small microwave energy loss, uniform distribution of the catalyst on the framework and strong catalyst adhesion capacity, thereby having wide application in the field of microwave catalysis.
Description
Technical Field
The invention belongs to the technical field of catalysts, and relates to but is not limited to a manufacturing process and a manufacturing device of a porous ceramic microwave catalyst.
Background
In the existing waste treatment process, a catalyst is usually adopted to accelerate the reaction rate and improve the treatment efficiency, so as to achieve the purpose of efficiently and quickly treating waste gas or waste water.
When the existing microwave catalyst is manufactured, a porous ceramic framework is firstly manufactured, and then the microwave catalyst is further attached to the porous ceramic framework, so that the microwave catalyst is formed.
However, the existing microwave catalyst has the disadvantages of small specific surface, strong absorption of microwave by the framework, limited contact area, large microwave energy loss, uneven distribution of the catalyst on the framework, weak adhesion of the catalyst and the like, so that the treatment efficiency of the microwave catalyst for treating wastes is not high.
Disclosure of Invention
The invention aims to provide a process and a device for manufacturing a porous ceramic microwave catalyst aiming at the defects in the process of preparing the microwave catalyst in the prior art, so as to solve the problems that the prior microwave catalyst has the defects of small specific surface, strong microwave absorption of a framework, limited contact area, large microwave energy loss, uneven distribution of the catalyst on the framework, weak catalyst adhesion capability and the like, and the treatment efficiency of treating wastes by the microwave catalyst is not high.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:
in a first aspect, the invention provides a process for preparing a porous ceramic microwave catalyst, which comprises the following steps:
mixing microwave catalyst powder with combustible particles to form microwave catalytic combustible particles;
mixing the microwave inert ceramic powder with high-temperature volatile substances to form ceramic clusters;
mixing the microwave catalytic combustible particles with the ceramic mass to form a target mixture;
and (3) placing the target mixture in a microwave field for ventilation and heating treatment to form the target porous ceramic microwave catalyst.
Optionally, the microwave-catalyzed combustible particles comprise: and mixing the microwave catalyst powder with the combustible particles, and uniformly mixing to form particles.
Optionally, the ceramic mass comprises: and mixing the microwave inert ceramic powder and the high-temperature volatile substances uniformly to form a cluster.
Optionally, the target mixture comprises: and (3) mixing the microwave catalytic combustible particles with the ceramic mass, and uniformly mixing to form a mixture.
Optionally, the target porous ceramic microwave catalyst comprises: and under the action of microwave heating, the high-temperature volatile substances in the target mixture are volatilized, the combustible particles are combusted, the microwave inert ceramic powder is combusted to form a porous ceramic body, the holes in the porous ceramic body are communicated, and the inner surface of each hole is full of the microwave catalyst powder.
Optionally, the combustible particles comprise particles that burn or volatilize upon heating by microwaves, and the microwave inert ceramic powder comprises a ceramic powder that is not microwave absorbing.
Optionally, the microwave catalyst powder comprises oxide powder and metal powder, and the combustible particles comprise carbon particles and organic particles.
In a second aspect, the present invention provides a porous ceramic microwave catalyst, which is manufactured by using the manufacturing process of the porous ceramic microwave catalyst according to the first aspect.
In a third aspect, the present invention provides an exhaust gas treatment device comprising the porous ceramic microwave catalyst of the second aspect.
In a fourth aspect, the present invention provides an apparatus for manufacturing a porous ceramic microwave catalyst, the apparatus comprising: first mixing module, second mixing module, third mixing module and heat treatment module, wherein:
the first mixing module is used for mixing microwave catalyst powder with combustible particles to form microwave catalytic combustible particles;
the second mixing module is used for mixing the microwave inert ceramic powder with high-temperature volatile substances to form ceramic clusters;
the third mixing module is used for mixing the microwave catalytic combustible particles with the ceramic mass to form a target mixture;
and the heating treatment module is used for placing the target mixture in a microwave field for ventilation and heating treatment to form the target porous ceramic microwave catalyst.
The invention has the beneficial effects that: the invention relates to a manufacturing process and a device of a porous ceramic microwave catalyst, wherein the manufacturing process of the porous ceramic microwave catalyst comprises the following steps: mixing microwave catalyst powder with combustible particles to form microwave catalytic combustible particles; mixing the microwave inert ceramic powder with high-temperature volatile substances to form ceramic clusters; mixing the microwave catalytic combustible particles with the ceramic mass to form a target mixture; and (3) placing the target mixture in a microwave field for ventilation and heating treatment to form the target porous ceramic microwave catalyst. That is, the invention uses the method of ventilating and heating the target mixture formed by uniformly mixing combustible particles full of catalyst powder and ceramic group in the microwave field to prepare the porous ceramic microwave catalyst, the porous ceramic microwave catalyst generated based on the process has the advantages of large specific surface, less absorption of microwave by the framework, large contact area, small microwave energy loss, uniform distribution of the catalyst on the framework and strong catalyst adhesion capacity, the whole preparation process is simple and needs less raw materials, the problem that the treatment efficiency of the microwave catalyst for treating wastes is not high due to the defects of small specific surface, strong absorption of microwave by the framework, limited contact area, large microwave energy loss, non-uniform distribution of the catalyst on the framework, weak catalyst adhesion capacity and the like of the existing microwave catalyst is solved, the rapidness and the high efficiency for preparing the microwave catalyst are greatly improved, the purpose of efficiently and rapidly treating the wastes is realized, the used materials are less, and the cost is low; furthermore, when the types of the microwave catalyst powder are more, the prepared porous ceramic microwave catalyst can be used for treating various harmful gas molecules, so that the diversity and the reliability of the prepared porous ceramic microwave catalyst are greatly improved, and the porous ceramic microwave catalyst has wide application in the field of microwave catalysis.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of a process flow for manufacturing a porous ceramic microwave catalyst according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a porous ceramic microwave catalyst according to another embodiment of the present invention;
FIG. 3 is a schematic view of an apparatus for manufacturing a microwave catalyst made of porous ceramics according to another embodiment of the present invention;
fig. 4 is a schematic view of a manufacturing control device of a porous ceramic microwave catalyst according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Here, the terms related to the present invention are explained:
microwave is an electric wave with a frequency of 300 megahertz to 300 gigahertz, and water molecules in the heated medium material are polar molecules. Under the action of a rapidly changing high-frequency point magnetic field, the polarity orientation of the magnetic field changes along with the change of an external electric field. The effect of mutual friction motion of molecules is caused, at the moment, the field energy of the microwave field is converted into heat energy in the medium, so that the temperature of the material is raised, and a series of physical and chemical processes such as thermalization, puffing and the like are generated to achieve the aim of microwave heating.
Fig. 1 is a schematic view of a process flow for manufacturing a porous ceramic microwave catalyst according to an embodiment of the present invention; FIG. 2 is a schematic view of a porous ceramic microwave catalyst according to another embodiment of the present invention; FIG. 3 is a schematic view of an apparatus for manufacturing a microwave catalyst made of porous ceramics according to another embodiment of the present invention; fig. 4 is a schematic view of a manufacturing control device of a porous ceramic microwave catalyst according to an embodiment of the present invention. The following describes the catalyst manufacturing process provided by the embodiment of the invention in detail with reference to fig. 1 to 4.
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the manufacturing process of the porous ceramic microwave catalyst provided by the embodiment of the present invention may include the following steps:
and step S101, mixing the microwave catalyst powder with combustible particles to form microwave catalytic combustible particles.
Wherein the microwave catalyst powder may include oxide powder and metal powder, and the combustible particles may include particles that burn or volatilize upon heating by microwave. Illustratively, the combustible particles may include carbon particles, organic particles, silicon carbide particles, and the like.
Specifically, when the microwave catalyst powder is mixed with the combustible particles, the microwave catalyst powder and the combustible particles can be mixed and uniformly mixed to form the microwave catalytic combustible particles. That is, the microwave catalytic combustible particles may be particles formed by mixing microwave catalyst powder and combustible particles uniformly. Also, when the surface of each combustible particle is impregnated with the microwave catalyst powder, it is considered that the microwave catalytic combustible particles are formed.
In the actual treatment process, the microwave catalyst particles can be obtained first, and then the microwave catalyst particles are crushed, so that microwave catalyst powder is obtained. Also, the number of combustible particles is sufficiently large, and sufficiently large, to be interconnected in the formed microwave catalyst.
And S102, mixing the microwave inert ceramic powder with the high-temperature volatile substances to form ceramic clusters.
The microwave inert ceramic powder can comprise ceramic powder which does not absorb microwaves, the microwave inert ceramic powder can comprise Al2O3 powder, zeolite powder, siO2 powder, kaolin powder and Si3N4 powder, and the high-temperature volatile substances can comprise water and paraffin. For example, the microwave inert ceramic powder may be replaced by a microwave inert medium powder, and the microwave inert medium powder may include a medium powder that does not absorb microwaves.
Specifically, when the microwave inert ceramic powder and the high-temperature volatile substance are mixed, the microwave inert ceramic powder and the high-temperature volatile substance can be mixed and uniformly mixed like kneading, and then the ceramic cluster can be formed. That is, the ceramic clusters may be clusters formed by mixing microwave inert ceramic powder and high-temperature volatile substances and uniformly mixing.
It should be noted that step S101 and step S102 may be performed simultaneously, or may be performed sequentially, for example, step S101 is performed first, and then step S102 is performed, step S102 is performed first, and then step S101 is performed, or step S101 and step S102 are performed simultaneously.
Step S103, mixing the microwave catalytic combustible particles with the ceramic mass to form a target mixture.
In particular, the number of microwave catalytic combustible particles may be the same as the number of combustible particles, for example, there may be a plurality of microwave catalytic combustible particles, which may be present throughout the target mixture and connected to each other.
Specifically, when the microwave catalytic combustible particles are mixed with the ceramic mass, a plurality of microwave catalytic combustible particles can be mixed with the ceramic mass like kneading dough and uniformly mixed to form a target mixture. That is, the target mixture may be a mixture formed by mixing and uniformly mixing a plurality of microwave catalytic combustible particles with the ceramic mass.
And step S104, placing the target mixture in a microwave field for ventilation and heating treatment to form the target porous ceramic microwave catalyst.
Specifically, when the target mixture is formed, the target mixture may be further placed in a microwave field, and then the target mixture in the microwave field is subjected to aeration heating treatment, so that the target mixture is combusted under the action of microwaves until high-temperature volatile substances in the target mixture are volatilized, combustible particles are combusted, and microwave inert ceramic powder is combusted, thereby forming a porous ceramic body, wherein the pores on the porous ceramic body are communicated with each other, the inner surface of each pore is stained with microwave catalyst powder, and the porous ceramic body formed at this time is the target porous ceramic microwave catalyst. That is, the target porous ceramic microwave catalyst may be a porous ceramic body formed by volatilizing high-temperature volatilizable substances in a target mixture under the action of microwave heating, combusting combustible particles and combusting microwave inert ceramic powder, wherein the pores on the porous ceramic body are communicated with each other, and the inner surface of each pore is stained with microwave catalyst powder.
The invention provides a manufacturing process of a porous ceramic microwave catalyst, which comprises the following steps: mixing microwave catalyst powder with combustible particles to form microwave catalytic combustible particles; mixing the microwave inert ceramic powder with high-temperature volatile substances to form ceramic clusters; mixing the microwave catalytic combustible particles with the ceramic mass to form a target mixture; and (3) placing the target mixture in a microwave field for ventilation and heating treatment to form the target porous ceramic microwave catalyst. That is, the porous ceramic microwave catalyst prepared by the invention is prepared by uniformly mixing combustible particles fully stained with catalyst powder and a ceramic cluster in a microwave field in a way of ventilating and heating a target mixture, and has the advantages of large specific surface, less absorption of microwave by a framework, large contact area, small microwave energy loss, uniform distribution of the catalyst on the framework and strong catalyst attachment capacity; furthermore, when the types of the microwave catalyst powder are more, the prepared porous ceramic microwave catalyst can be used for treating various harmful gas molecules, so that the diversity and the reliability of the prepared porous ceramic microwave catalyst are greatly improved, and the porous ceramic microwave catalyst has wide application in the field of microwave catalysis.
In another embodiment, as shown in fig. 2, the present invention also provides a porous ceramic microwave catalyst, which may include: microwave catalysis is carried out on a microwave catalyst 5 which is formed by ventilating and heating a target mixture 3 of combustible particles 1 and ceramic clusters 2 in a microwave field 4 and has exposed active ingredients.
The microwave catalytic combustible particles 1 may include particles formed by mixing microwave catalyst powder 11 and combustible particles 12, and the ceramic agglomerates 2 may include agglomerates formed by mixing microwave inert ceramic powder 21 and high-temperature volatilizable substances 22.
It should be noted that since the microwave inert ceramic powder 21 and the high-temperature volatile substance 22 can be mixed uniformly in a similar manner to kneading dough, the main component in the formed ceramic dough 2 is the microwave inert ceramic powder 21 and not the high-temperature volatile substance 22.
In an embodiment of the present invention, the target mixture 3 may include a mixture formed by mixing and uniformly mixing the microwave catalytic combustible particles 1 and the ceramic clusters 2.
It should be noted that the number of microwave catalytic combustible particles 1 can be sufficient, and when microwave catalytic combustible particles 1 are mixed with ceramic mass 2, they can be uniformly mixed like kneading dough, so that all microwave catalytic combustible particles 1 are completely distributed inside and outside ceramic mass 2, thereby forming target mixture 3.
Optionally, the microwave catalyst powder 11 may be replaced by a microwave absorbing material powder, and the microwave inert ceramic powder 21 may be replaced by a microwave inert medium powder.
In the embodiment of the present invention, the microwave catalyst 5 may be used to characterize that the high-temperature volatilizable substance 22 in the target mixture 3 is volatilized under the action of microwave heating, the combustible particles 12 are combusted, and the microwave inert ceramic powder 21 is combusted to form a porous ceramic body, and the pores on the porous ceramic body are communicated with each other, and the inner surface of each pore may be stained with the microwave catalyst powder 11.
In the embodiment of the present invention, the microwave catalytic combustible particles 1 can be used to characterize that the surface of the combustible particles 12 is full of the microwave catalyst powder 11.
It should be noted that the quantity of the microwave catalytic combustible particles 1 is enough, and the holes in the microwave catalyst 5 formed later can be communicated to form a frame or a framework, that is, the frame or the framework is formed by a plurality of holes with inner surfaces being full of the microwave catalyst powder 11 and supported by a net, so that the defect that the microwave catalytic combustible particles 1 easily fall off when the quantity is small is avoided, and a loose porous microwave catalyst ceramic framework is obtained. For example, the target mixture 3 is burned by microwave heating and the target mixture 3 is burned
Alternatively, the microwave field 4 for heating the target mixture 3 may be actively heated and/or passively heated to achieve the heating target, and is not limited in particular.
It should be noted that the heating process using the microwave field 4 may be a process of burning the target mixture 3, and organic matters (such as combustible particles 12 and high-temperature volatile matters 22) are burned off during the process of burning the target mixture 3, and inorganic matters (such as the microwave inert ceramic powder 21 and the microwave catalyst powder 11) are solidified into a certain shape, because the inorganic matters exist everywhere in the target mixture 3, so that a ceramic skeleton in which the microwave catalyst powder 11 is fully attached to the inner surface of the hole is formed after burning, which is similar to a process of forming a skeleton after people are burned.
In the embodiment of the present invention, the microwave catalyst powder 11 may include oxide powder and metal powder.
Alternatively, the oxide powder and the metal powder may be powders obtained by pulverizing the oxide particles and the metal particles.
In embodiments of the present invention, combustible particles 12 may include particles that burn or volatilize upon heating via microwaves.
Alternatively, the combustible particles 12 may comprise carbon particles, organic particles.
In the embodiment of the present invention, the microwave inert ceramic powder 21 may include a powder that does not absorb microwaves.
Optionally, the microwave inert ceramic powder 21 may include Al2O3 powder, zeolite powder, siO2 powder, kaolin powder, and Si3N4 powder.
In the embodiment of the present invention, the high temperature volatilizable substance 22 may include water and paraffin.
The invention provides a porous ceramic microwave catalyst, which comprises: the microwave catalyst is formed by ventilating and heating a target mixture of the microwave catalytic combustible particles and the ceramic clusters in a microwave field, and active ingredients are exposed; the microwave catalytic combustible particles comprise particles formed by mixing microwave catalyst powder and combustible particles, and the ceramic clusters comprise clusters formed by mixing microwave inert ceramic powder and high-temperature volatile substances. That is, the porous ceramic microwave catalyst is prepared by uniformly mixing combustible particles fully impregnated with catalyst powder and ceramic clusters to form a target mixture and heating the target mixture in a microwave field, and the catalyst generated based on the porous ceramic microwave catalyst has the advantages of large specific surface, less microwave absorption by a framework, large contact area, small microwave energy loss, uniform distribution of the catalyst on the framework, strong catalyst adhesion capacity, simple structure, easiness in operation, low cost, high reliability and capability of continuously running, greatly improves the treatment efficiency of waste gas or waste water and other wastes, and is widely applied to the field of microwave catalysis.
In another embodiment, the present invention further provides an exhaust gas treatment device, which may include other exhaust gas treatment equipment such as a VOCS treatment equipment, a desulfurization and denitrification equipment, a dioxin treatment equipment, etc., and the exhaust gas treatment device may include the porous ceramic microwave catalyst described in the foregoing embodiment, for example, the porous ceramic microwave catalyst may be disposed in the exhaust gas treatment device.
Fig. 3 shows a device for manufacturing a porous ceramic microwave catalyst according to an embodiment of the present invention, and as shown in fig. 3, the device for manufacturing a porous ceramic microwave catalyst includes: a first mixing module 301, a second mixing module 302, a third mixing module 303, and a heat treatment module 304, wherein: a first mixing module 301 for mixing microwave catalyst powder with combustible particles to form microwave catalytic combustible particles; the second mixing module 302 is used for mixing the microwave inert ceramic powder with high-temperature volatile substances to form ceramic clusters; a third mixing module 303 for mixing the microwave catalytic combustible particles with the ceramic mass to form a target mixture; and the heating treatment module 304 is used for placing the target mixture in a microwave field for ventilation heating treatment to form the target porous ceramic microwave catalyst.
It should be noted that, for the descriptions of the same steps and the same contents in this embodiment as those in other embodiments, reference may be made to the descriptions in other embodiments, which are not described herein again.
The invention relates to a device for manufacturing a porous ceramic microwave catalyst, which comprises: first mixing module, second mixing module, third mixing module and heat treatment module, wherein: the first mixing module is used for mixing the microwave catalyst powder with combustible particles to form microwave catalytic combustible particles; the second mixing module is used for mixing the microwave inert ceramic powder with high-temperature volatile substances to form a ceramic cluster; the third mixing module is used for mixing the microwave catalytic combustible particles with the ceramic mass to form a target mixture; and the heating treatment module is used for placing the target mixture in a microwave field for ventilation and heating treatment to form the target porous ceramic microwave catalyst. That is, the porous ceramic microwave catalyst prepared by the invention is prepared by uniformly mixing combustible particles fully stained with catalyst powder and a ceramic cluster in a microwave field in a way of ventilating and heating a target mixture, and has the advantages of large specific surface, less absorption of microwave by a framework, large contact area, small microwave energy loss, uniform distribution of the catalyst on the framework and strong catalyst attachment capacity; furthermore, when the types of the microwave catalyst powder are more, the prepared porous ceramic microwave catalyst can also be used for treating various harmful gas molecules, so that the diversity and the reliability of the prepared porous ceramic microwave catalyst are greatly improved, and the porous ceramic microwave catalyst has wide application in the field of microwave catalysis.
Fig. 4 is a schematic diagram of a control apparatus for manufacturing a porous ceramic microwave catalyst, which may be integrated in a terminal device or a chip of the terminal device, and includes: memory 401, processor 402.
The memory 401 is used for storing programs, and the processor 402 calls the programs stored in the memory 401 to execute the above-mentioned method embodiments. The specific implementation and technical effects are similar, and are not described herein again.
Preferably, the present invention also provides a computer-readable storage medium comprising a program which, when executed by a processor, is adapted to perform the above-described method embodiments.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (in english: processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Claims (10)
1. The manufacturing process of the porous ceramic microwave catalyst is characterized by comprising the following steps:
mixing microwave catalyst powder with combustible particles to form microwave catalytic combustible particles;
mixing the microwave inert ceramic powder with high-temperature volatile substances to form ceramic clusters;
mixing the microwave catalytic combustible particles with the ceramic mass to form a target mixture;
and (3) placing the target mixture in a microwave field for ventilation and heating treatment to form the target porous ceramic microwave catalyst.
2. The process of claim 1, wherein the microwave catalytic combustible particles comprise: and mixing the microwave catalyst powder and the combustible particles, and uniformly mixing to form particles.
3. The process for preparing a porous ceramic microwave catalyst according to claim 1, wherein the ceramic mass comprises: and mixing the microwave inert ceramic powder and the high-temperature volatile substances to form a group after uniform mixing.
4. The process of claim 1, wherein the target mixture comprises: and (3) mixing the microwave catalytic combustible particles with the ceramic mass, and uniformly mixing to form a mixture.
5. The process of claim 1, wherein the target porous ceramic microwave catalyst comprises: and under the action of microwave heating, the high-temperature volatile substances in the target mixture are volatilized, the combustible particles are combusted, the microwave inert ceramic powder is combusted to form a porous ceramic body, the holes in the porous ceramic body are communicated, and the inner surface of each hole is full of the microwave catalyst powder.
6. The process for preparing the porous ceramic microwave catalyst according to claim 1, wherein the combustible particles comprise particles which can be combusted or volatilized after microwave heating, and the microwave inert ceramic powder comprises ceramic powder which does not absorb microwaves.
7. The process for preparing the porous ceramic microwave catalyst according to claim 6, wherein the microwave catalyst powder comprises oxide powder and metal powder, and the combustible particles comprise carbon particles and organic particles.
8. A porous ceramic microwave catalyst, wherein the porous ceramic microwave catalyst is manufactured by using the manufacturing process of the porous ceramic microwave catalyst according to any one of claims 1 to 7.
9. An exhaust gas treatment device, characterized in that the device comprises a porous ceramic microwave catalyst as recited in claim 8.
10. An apparatus for manufacturing a porous ceramic microwave catalyst, comprising: first mixed module, second mixed module, third mixed module and heat treatment module, wherein:
the first mixing module is used for mixing microwave catalyst powder with combustible particles to form microwave catalytic combustible particles;
the second mixing module is used for mixing the microwave inert ceramic powder with high-temperature volatile substances to form a ceramic cluster;
the third mixing module is used for mixing the microwave catalytic combustible particles with the ceramic mass to form a target mixture;
and the heating treatment module is used for placing the target mixture in a microwave field for ventilation and heating treatment to form the target porous ceramic microwave catalyst.
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