CN218422288U

CN218422288U - Catalyst synthesis device

Info

Publication number: CN218422288U
Application number: CN202222750923.1U
Authority: CN
Inventors: 张小芹; 丛明燕; 贾琪; 赵卿
Original assignee: Shandong Guochuang Fuel Cell Technology Innovation Center Co ltd
Current assignee: Shandong Guochuang Fuel Cell Technology Innovation Center Co ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-02-03
Anticipated expiration: 2032-10-19

Abstract

The utility model relates to a catalyst synthesis equipment technical field especially relates to a catalyst synthesizer. The device comprises a mixing and stirring structure, a material preheating structure, a heating and synthesizing structure, a cooling structure and a power pump; the material preheating structure is communicated with the mixing and stirring structure through a conveying pipeline; the heating synthesis structure is communicated with the material preheating structure through a conveying pipeline, the heating synthesis structure comprises a reaction synthesis pipe and an oil heating unit, a feeding hole of the reaction synthesis pipe is communicated with the material preheating structure through the conveying pipeline, and the reaction synthesis pipe is arranged in a cavity formed by the oil heating unit; the cooling structure is communicated with the discharge hole of the reaction synthesis tube through a conveying pipeline. The mixing and stirring structure uniformly stirs the materials for synthesizing the catalyst, so that the noble metals on the carbon can be uniformly distributed during the reaction of the materials; the material preheating structure can preheat materials to be fed into the heating synthesis structure, and the materials are prevented from entering the heating synthesis structure with higher temperature to generate agglomeration.

Description

Catalyst synthesis device

Technical Field

The utility model relates to a catalyst synthesis equipment technical field especially relates to a catalyst synthesizer.

Background

A proton exchange membrane fuel cell is a type of fuel cell and corresponds in principle to a "reverse" device for water electrolysis. The single cell consists of an anode, a cathode and a proton exchange membrane, wherein the anode is a place where hydrogen fuel is oxidized, the cathode is a place where an oxidant is reduced, the anode and the cathode both contain catalysts for accelerating the electrochemical reaction of the electrodes, and the proton exchange membrane is used as an electrolyte. When working, the power supply is equivalent to a direct current power supply, the anode of the power supply is the negative pole of the power supply, and the cathode of the power supply is the positive pole of the power supply. In polymer solid electrolyte fuel cells (PEFCs) and Direct Methanol Fuel Cells (DMFCs), noble metals are used as catalyst materials. By adsorbing hydrogen molecules on the surface of the noble metal and then splitting the hydrogen molecules into atomic states at the adsorption sites, the reaction is easily caused even at low temperatures. From this, it is understood that the action of the catalyst plays a significant role in the fuel cell, and is directly related to the performance, life and cost of the fuel cell.

In the synthesis link of the catalyst, although materials enter the microwave device to synthesize the catalyst in the prior art, the temperature difference between the actual temperature of the materials entering the microwave device and the actual temperature in the microwave device is large, so that the materials entering the microwave device can agglomerate to cause uneven distribution of precious metals attached to a carrier, and the development of the production field of the fuel cell catalyst is severely restricted.

Therefore, a catalyst synthesis apparatus is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a catalyst synthesizer can prevent that the material from agglomerating at the reaction synthesis stage, and the catalyst distribution of obtaining is more even.

To achieve the purpose, the utility model adopts the following technical proposal:

a catalyst synthesis apparatus comprising:

a mixing and stirring structure configured to uniformly stir a material for synthesizing the catalyst;

a material preheating structure in communication with the mixing and stirring structure through a conveying conduit, the material preheating structure configured to preheat and stir material of a synthesis catalyst;

a heating synthesis structure communicated with the material preheating structure through a conveying pipeline, wherein the heating synthesis structure comprises a reaction synthesis pipe and an oil heating unit, a feed inlet of the reaction synthesis pipe is communicated with the material preheating structure through the conveying pipeline, the reaction synthesis pipe is arranged in a cavity formed by the oil heating unit, the oil heating unit is configured to heat the reaction synthesis pipe, and the reaction synthesis pipe is configured to be used for synthesizing a material synthesis catalyst of a catalyst;

a cooling structure in communication with the outlet of the reaction synthesis tube via a delivery conduit, the cooling structure configured to cool the synthesized catalyst;

a power pump configured to provide motive force for flow of the catalyst and the material.

As a preferable technical solution of the above catalyst synthesis apparatus, the reaction synthesis tube is disposed in a serpentine shape, a U shape, or a spiral shape.

As a preferable technical solution of the above catalyst synthesis apparatus, the reaction synthesis tube is a polytetrafluoroethylene tube or a quartz glass tube.

As a preferable embodiment of the above catalyst synthesis apparatus, the reaction synthesis tube has a length of 3m or more.

As a preferable technical solution of the above catalyst synthesizing apparatus, the heating synthesis structure further includes a pipe support for supporting the reaction synthesis pipe, and the pipe support is disposed in a chamber formed by the oil heating unit.

As a preferable embodiment of the catalyst synthesis apparatus, the cooling structure includes a cooling container and a cooling stirring rod, and the cooling stirring rod is disposed in the cooling container and can rotate in the cooling container.

As a preferable technical solution of the above catalyst synthesis apparatus, the catalyst synthesis apparatus further includes a nitric acid supply structure, the nitric acid supply structure is communicated with the cooling structure through a delivery pipe, and the nitric acid supply structure is capable of providing a nitric acid solution for adjusting the pH value of the solution to the cooling structure.

As a preferable embodiment of the above catalyst synthesis apparatus, the catalyst synthesis apparatus further includes a positive pressure filter structure configured to filter the catalyst under pressure and a water purifier;

the water purifier is communicated with the positive pressure filtering structure and provides pure water for washing and filtering the catalyst for the positive pressure filtering structure.

As an optimal technical scheme of the catalyst synthesis device, the catalyst synthesis device further comprises a nitrogen tank, and the nitrogen tank is communicated with the material preheating structure and the positive pressure filtering structure through conveying pipelines respectively.

As a preferable technical solution of the above catalyst synthesizing apparatus, the power pump is a flow peristaltic pump, and the power pumps are disposed between the mixing and stirring structure and the material preheating structure, between the material preheating structure and the heating and synthesizing structure, and between the heating and synthesizing structure and the cooling structure.

The utility model discloses beneficial effect:

in the utility model, the mixing and stirring structure is configured to stir the materials for synthesizing the catalyst to be uniformly mixed, so that the noble metals on the carrier are uniformly distributed during the reaction of the materials; the material preheating structure is configured to preheat and stir the material synthesized by the catalyst, so that the material entering the heating synthesis structure can be preheated, and the material is prevented from entering the heating synthesis structure with higher temperature to generate agglomeration; the heating synthesis structure comprises a reaction synthesis pipe and an oil heating unit, wherein a feeding hole of the reaction synthesis pipe is communicated with the material preheating structure through a conveying pipeline, the reaction synthesis pipe is arranged in a cavity formed by the oil heating unit and provides space for the material synthesis catalyst, the oil heating unit is configured to heat the reaction synthesis pipe, so that the temperature required by synthesis can be provided for the reaction synthesis pipe, and the reaction synthesis pipe is configured to be used for the material synthesis catalyst; the cooling structure is configured to cool the synthesized catalyst; the power pump is configured to provide motive force for the flow of catalyst and material.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a catalyst synthesis apparatus provided in an embodiment of the present invention;

FIG. 2 is a structural schematic diagram of the reaction synthesis tube provided by the embodiment of the present invention in a serpentine shape.

In the figure:

1. a mixing and stirring structure; 2. a material preheating structure; 3. heating the synthesized structure; 31. an oil heating unit; 32. a reaction synthesis tube; 4. a cooling structure; 5. a power pump; 6. a nitric acid supply structure; 7. a positive pressure filtration structure; 8. a water purification machine; 9. a nitrogen tank; 10. a delivery conduit.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element 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" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The existing catalyst is in the process of a synthesis link, although materials enter a microwave device to be synthesized, the materials cannot be heated according to actual needs before entering the microwave device, so that the temperature difference of the materials entering the microwave device is large, the materials entering the microwave device can be agglomerated, the precious metals attached to carbon are not uniformly distributed, and the development of the production field of the fuel cell catalyst is severely restricted.

Therefore, the utility model provides a catalyst synthesizer, can solve above-mentioned technical problem to prevent that the material from agglomerating at the reaction synthesis stage, the noble metal distributes more evenly in the catalyst that obtains.

The utility model provides a catalyst synthesizer for prepare liquid phase reduction catalyst, for example noble metal carbon catalyst, noble metal nickel catalyst, noble metal cobalt catalyst and palladium ruthenium catalyst etc..

As shown in fig. 1, the catalyst synthesis device comprises a mixing stirring structure 1, a material preheating structure 2, a heating synthesis structure 3, a cooling structure 4 and a power pump 5, wherein, the mixing stirring structure 1, the material preheating structure 2, the heating synthesis structure 3, the cooling structure 4 and the power pump 5 are all connected through a conveying pipeline 10, and the mixing stirring structure 1, the material preheating structure 2, the heating synthesis structure 3 and the cooling structure 4 are connected in sequence, thereby the solution formed by the material enters the heating synthesis structure 3 to carry out synthesis reaction after sequentially passing through the mixing stirring structure 1 and the material preheating structure 2, and the catalyst solution obtained by synthesis enters the cooling structure 4 to be cooled.

In the present embodiment, specifically, the mixing and stirring structure 1 is configured to uniformly stir the material for synthesizing the catalyst, so that the precious metals on the carrier can be distributed more uniformly during the reaction; the material preheating structure 2 is configured to preheat and stir the material of the catalyst synthesis catalyst, so that the material to be fed into the heating synthesis structure 3 can be preheated, and the material is prevented from being agglomerated when being fed into the heating synthesis structure 3 with a higher temperature; the heating synthesis structure 3 comprises a temperature control panel, a reaction synthesis pipe 32 and an oil heating unit 31, wherein the temperature control panel can adjust the temperature of the oil heating unit 31 according to needs, and the temperature control panel is arranged on the shell of the oil heating unit 31 and realizes heating through the temperature of silicon oil in a control bin.

Use platinum carbon catalyst as an example the utility model provides a catalyst synthesizer can make the platinum distribution on the carbon of material at the reaction comparatively even.

The feed inlet of the reaction synthesis pipe 32 is communicated with the material preheating structure 2 through the conveying pipeline 10, the reaction synthesis pipe 32 is arranged in a cavity formed by the oil heating unit 31, the reaction synthesis pipe 32 provides a space for a material synthesis catalyst, the oil heating unit 31 is configured to heat the reaction synthesis pipe 32, so that the temperature required by synthesis can be provided for the reaction synthesis pipe 32, and the reaction synthesis pipe 32 is configured to provide the material synthesis catalyst; the cooling structure 4 is configured to cool the synthesized catalyst; the power pump 5 is configured to provide motive force for the flow of catalyst and material. The reaction synthesis tube 32 decomposes the reaction into a plurality of micro units, the flow is stable, the rapid reduction of the noble metal is realized, and the active particles of the obtained catalyst have uniform size and uniform dispersion.

Further, in order to make the path of the reaction synthesis tube 32 longer and make the material always fully react and synthesize in the moving process under the action of the power pump 5, the reaction synthesis tube 32 is disposed in a serpentine shape (as shown in fig. 2) or U-shape or spiral shape in this embodiment. The reaction synthesis tubes 32 are U-shaped, which means that the reaction synthesis tubes 32 are formed of a plurality of U-shaped tubes, and a plurality of rows of the reaction synthesis tubes 32 are arranged side by side and connected in sequence as shown in fig. 2. The total length of the reaction synthesis tube 32 is not less than 3m, which can provide a place for the materials to react sufficiently.

Spiral means that the shape of the reaction synthesis tube 32 can be more specifically, the reaction synthesis tube 32 has a serpentine shape, or a serpentine shape having a ring shape. The specific shape of the reaction synthesis tube 32 is provided herein so as to be within the scope of protection as long as the elongated material is capable of reacting sufficiently to synthesize the catalyst during movement.

Since the reaction tube 32 is made of a material having a strong alkaline substance, the reaction tube 32 is made of polytetrafluoroethylene or quartz glass in this embodiment in order to prevent the material from corroding the reaction tube 32.

In this embodiment, the heating synthesis structure 3 further comprises a pipe support for supporting the reaction synthesis pipe 32, and the pipe support is disposed in the cavity formed by the oil heating unit 31. The pipe bracket can fixedly support the reaction synthesis pipe 32 in the oil heating unit 31, prevent the reaction synthesis pipe 32 from directly contacting with the oil heating unit 31, avoid the contact from influencing the temperature of the reaction synthesis pipe 32, and ensure the synthesis efficiency of the catalyst.

In the present embodiment, the cooling structure 4 includes a cooling container and a cooling stirring rod that is provided in the cooling container and is capable of rotating in the cooling container. The cooling stirring rod can accelerate the temperature reduction of the catalyst in the stirring process. The cooling container is electrically cooled, and the cooling is specifically the prior art and is not described in detail.

In the present embodiment, the catalyst synthesis apparatus further comprises a nitric acid supply structure 6, the nitric acid supply structure 6 is communicated with the cooling structure 4 through a conveying pipeline 10, and the nitric acid supply structure 6 can provide the cooling structure 4 with a nitric acid solution for adjusting the pH value of the solution. The nitric acid supply structure 6 controls the nitric acid solution to adjust the catalyst solution to acidity by the power pump 5.

In this embodiment, the catalyst synthesis apparatus further includes a positive pressure filter structure 7, and the positive pressure filter structure 7 is configured to filter the catalyst under pressure, specifically, the positive pressure filter structure 7 filters the catalyst solution to obtain a wet catalyst, and the wet catalyst is vacuum-dried to obtain a final catalyst. Since a pressure source needs to be supplied with gas during pressurization, in this embodiment, the catalyst synthesis apparatus further includes a nitrogen tank 9, and the nitrogen tank 9 can supply nitrogen to the positive pressure filter structure 7 so that the catalyst does not react with the nitrogen.

In the present embodiment, the catalyst synthesis apparatus further includes a water purifier 8, the water purifier 8 is in communication with the positive pressure filter structure 7, and the water purifier 8 supplies pure water for washing the filter catalyst to the positive pressure filter structure 7. Pure water enters the positive pressure filtering structure 7, is stirred and filtered to obtain a cleaned catalyst, and is dried to obtain a dried catalyst.

In this embodiment, the nitrogen tank 9 is also in communication with the material preheating arrangement 2 via a conveying pipe 10. The nitrogen can prevent the material from reacting with oxygen in the air during the stirring process to influence the synthesis of the catalyst.

In this embodiment, the power pump 5 is a flow peristaltic pump, and the power pumps 5 are disposed between the mixing and stirring structure 1 and the material preheating structure 2, between the material preheating structure 2 and the heating synthetic structure 3, and between the heating synthetic structure 3 and the cooling structure 4. A power pump 5 is also provided between the nitric acid supply structure 6 and the cooling structure 4, so that the nitric acid can be supplied for ph adjustment inside the cooling structure 4.

In this embodiment, the conveying pipe 10 is a high-temperature-resistant and corrosion-resistant plastic or PTFE hose.

All be provided with temperature sensor at parts such as mixing structure 1, material preheating structure 2, heating synthesis structure 3, cooling structure 4 and malleation filtration 7.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A catalyst synthesis apparatus, comprising:

a mixing and stirring structure (1) configured to stir a material for synthesizing a catalyst uniformly;

a material preheating structure (2) in communication with the mixing and stirring structure (1) through a conveying pipe (10), the material preheating structure (2) being configured to preheat and stir the material of the synthesis catalyst;

a heating synthesis structure (3) communicated with the material preheating structure (2) through a conveying pipeline (10), wherein the heating synthesis structure (3) comprises a reaction synthesis pipe (32) and an oil heating unit (31), the feed inlet of the reaction synthesis pipe (32) is communicated with the material preheating structure (2) through the conveying pipeline (10), the reaction synthesis pipe (32) is arranged in a cavity formed by the oil heating unit (31), the oil heating unit (31) is configured to heat the reaction synthesis pipe (32), and the reaction synthesis pipe (32) is configured to be used for synthesizing a material synthesis catalyst of the catalyst;

a cooling structure (4) in communication with the outlet of the reaction synthesis tube (32) through a delivery duct (10), the cooling structure (4) being configured to cool the synthesized catalyst;

a power pump (5) configured to provide motive power for the flow of the catalyst and the material.

2. The catalyst synthesis apparatus of claim 1, wherein the reaction synthesis tubes (32) are arranged in a serpentine or U-shape or spiral.

3. The catalyst synthesis apparatus of claim 1, wherein the reaction synthesis tube (32) is a polytetrafluoroethylene tube or a quartz glass tube.

4. The catalyst synthesis apparatus of claim 1, wherein the reaction synthesis tube (32) has a length of 3m or more.

5. The catalyst synthesis apparatus according to claim 1, wherein the heating synthesis structure (3) further comprises a pipe support supporting the reaction synthesis pipe (32), the pipe support being disposed within a chamber formed by the oil heating unit (31).

6. The catalyst synthesis apparatus according to claim 1, wherein the cooling structure (4) comprises a cooling vessel and a cooling stirring rod disposed within the cooling vessel and rotatable therein.

7. The catalyst synthesis apparatus according to claim 1, further comprising a nitric acid supply structure (6), the nitric acid supply structure (6) being in communication with the cooling structure (4) through a transfer conduit (10), the nitric acid supply structure (6) being capable of providing a nitric acid solution to the cooling structure (4) that adjusts the pH of the solution.

8. The catalyst synthesis apparatus according to claim 1, characterized in that the catalyst synthesis apparatus further comprises a positive pressure filter structure (7) and a water purification machine (8), the positive pressure filter structure (7) being configured to filter the catalyst under pressure;

the water purification machine (8) is communicated with the positive pressure filtering structure (7), and the water purification machine (8) provides pure water for washing and filtering the catalyst for the positive pressure filtering structure (7).

9. The catalyst synthesis apparatus according to claim 8, characterized in that it further comprises a nitrogen tank (9), the nitrogen tank (9) being in communication with the material preheating structure (2) and the positive pressure filtration structure (7) through a transfer pipe (10), respectively.

10. The catalyst synthesis apparatus according to any one of claims 1 to 9, wherein the power pump (5) is a flow-type peristaltic pump, and the power pump (5) is disposed between the mixing and stirring structure (1) and the material preheating structure (2), between the material preheating structure (2) and the heating synthesis structure (3), and between the heating synthesis structure (3) and the cooling structure (4).