CN216726648U - Reaction device for catalyzing reduction of carbon dioxide - Google Patents
Reaction device for catalyzing reduction of carbon dioxide Download PDFInfo
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- CN216726648U CN216726648U CN202122553459.2U CN202122553459U CN216726648U CN 216726648 U CN216726648 U CN 216726648U CN 202122553459 U CN202122553459 U CN 202122553459U CN 216726648 U CN216726648 U CN 216726648U
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Abstract
The utility model provides a reaction device for catalyzing reduction of carbon dioxide, which comprises a first container, wherein the first container comprises a reactor, a reaction cavity is arranged in the reactor, a gas inlet and a gas outlet are arranged on the reactor, the gas inlet and the gas outlet are respectively communicated with the reaction cavity, the gas inlet and the gas outlet are mutually communicated through the reaction cavity, a catalyst carrier is arranged in the reaction cavity, the reaction cavity is divided into an inlet part and an outlet part by the catalyst carrier, the inlet part is close to the gas inlet and far away from the gas outlet, and the outlet part is close to the gas inlet and far away from the gas outletThe mouth portion is proximate to the gas outlet and distal to the gas inlet. The utility model effectively improves the catalytic CO2The efficiency of the reduction.
Description
Technical Field
The utility model relates to the field of chemical equipment, in particular to a method for catalyzing carbon dioxide CO2A reaction device for reduction.
Background
As the industrialization process is accelerated, the ecological environment of the earth is seriously damaged, wherein the largest influence range is the greenhouse effect. The increasing carbon dioxide content in the atmosphere is one of the main causes of the greenhouse effect. It is reported that the concentration of carbon dioxide in the atmosphere is about 350ppm at present, and about 20 hundred million tons of carbon dioxide are emitted every year in the world today, and if the emission is continued at this speed, the concentration of carbon dioxide in the atmosphere is expected to reach 560ppm by 2030, and the result is that the average temperature of the earth rises 1.5-4.5 ℃. The temperature rise can dry the subtropical regions, the rainfall of high latitude regions is increased, the ice accumulation region in the ocean is reduced, and the ice and snow melt in advance. In order to protect the global environment on which humans rely for survival, humans have to consider carbon abatement or carbon recycling measures.
The resource utilization of the carbon dioxide mainly comprises the following aspects that (l) the carbon dioxide is converted into the carbon nano material; (2) converting carbon dioxide to higher value-added chemicals electrochemically, photochemically or photoelectrochemically; (3) converting carbon dioxide into bioactive substances such as feed and fertilizer by microorganisms, enzymes, microalgae and the like; (4) the carbon dioxide is mineralized into cement, ash and the like. The research on electrochemical, photochemical and photoelectrochemical reduction of carbon dioxide is a relatively popular direction in recent years.
For this reason, those skilled in the art have been devoted to developing an effective reaction apparatus for improving the catalytic carbon dioxide reduction efficiency.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model aims to provide a reaction device for catalyzing the reduction of carbon dioxide, which effectively improves the reaction efficiency.
According to the utility model, the reaction device for catalyzing the reduction of carbon dioxide comprises a first container, wherein the first container comprises a reactor, a reaction cavity is arranged in the reactor, a gas inlet and a gas outlet are arranged on the reactor, the gas inlet and the gas outlet are respectively communicated with the reaction cavity, the gas inlet and the gas outlet are mutually communicated through the reaction cavity, a catalyst carrier is arranged in the reaction cavity, the reaction cavity is divided into an inlet part and an outlet part by the catalyst carrier, the inlet part is close to the gas inlet and far away from the gas outlet, and the outlet part is close to the gas outlet and far away from the gas inlet.
Preferably: the catalyst carrier is in the shape of a porous disc.
Preferably: the reactor also comprises a light source, wherein the light source is arranged above the reactor, and light rays emitted by the light source penetrate through the reactor and enter the reaction cavity to catalyze the gas reduction reaction.
Preferably: the first container further comprises a shell, a constant temperature cavity is arranged in the shell, a constant temperature liquid inlet and a constant temperature liquid outlet are formed in the shell, the constant temperature liquid inlet and the constant temperature liquid outlet are respectively communicated with the constant temperature cavity, the constant temperature liquid inlet and the constant temperature liquid outlet are mutually communicated through the constant temperature cavity, and the reactor is arranged in the constant temperature cavity.
Preferably: the reactor comprises a first container, a catalyst carrier and a second container, wherein the first container is arranged in the reactor, the second container is connected with the reactor of the first container and communicated with a reaction cavity of the reactor, a first electrode is further arranged in the reaction cavity of the reactor and connected with the catalyst carrier, a second electrode is further arranged in the second container, and a proton exchange membrane is further arranged between the second container and the reaction cavity.
Preferably: electrolyte is arranged in the second container and the reaction cavity.
Preferably: the first electrode and/or the second electrode are made of a Pt sheet.
Preferably, the following components: the catalyst carrier is made of an electrode material.
Preferably, the following components: the second container is connected with the reaction cavity through two flanges.
Preferably: the proton exchange membrane is arranged between the two flanges.
The reaction device for catalyzing the reduction of the carbon dioxide effectively improves the reaction efficiency.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a reaction apparatus for catalytic carbon dioxide reduction according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a reaction apparatus for photo-or photoelectrocatalytic carbon dioxide reduction according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a reactor apparatus for photo-or photo-electro-catalytic carbon dioxide reduction according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the structure of a reactor of a reaction apparatus for electro-or photoelectrocatalytic carbon dioxide reduction according to an embodiment of the present invention;
FIG. 5 is a schematic side view of a reactor of a reaction apparatus for electro-or photoelectrocatalytic carbon dioxide reduction according to an embodiment of the present invention;
FIG. 6 is a schematic view of a flange structure of a reactor of a reaction apparatus for catalytic carbon dioxide reduction according to an embodiment of the present invention;
fig. 7 is a schematic view of a structure of a flange cover of a reactor of a reaction device for catalytic carbon dioxide reduction according to an embodiment of the present invention.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.
As shown in fig. 1, in an embodiment of the present invention, there is provided a reaction apparatus for catalytic carbon dioxide reduction, including a first vessel including a reactor 1.
The reactor 1 is provided with a reaction chamber, which is a cavity formed inside the reactor 1, preferably formed by an inner wall. The reactor 1 is provided with a gas inlet 2 and a gas outlet 3.
The gas inlet 2 and the gas outlet 3 are respectively communicated with the reaction cavity, and the gas inlet 2 and the gas outlet 3 are mutually communicated through the reaction cavity. During reaction, CO2Gas enters from the gas inlet 2, reacts in the reaction chamber, and exits from the gas outlet 3. The gas inlet 2 and the gas outlet 3 are respectively arranged at two sides of the reactor 1 and are respectively distributed up and down.
The reaction chamber is provided with a catalyst support 4, preferably detachably connected, on which the catalytic CO is supported2The catalyst used is reduced. The catalyst carrier 4 is provided with a catalyst which can catalyze CO2And (4) carrying out gas reduction reaction.
And it is preferable that the catalyst carrier 4 has a shape of a porous disc for gas to pass through.
The catalyst support 4 divides the reaction chamber into an inlet portion, which is close to the gas inlet 2 and remote from the gas outlet 3, and an outlet portion, which is close to the gas outlet 3 and remote from the gas inlet 2. That is, the gas entering from the gas inlet 2 needs to pass through the catalyst carrier 4, then fully contacts with the porous disc carrier loaded with the catalyst, and is discharged from the gas outlet 3 after fully reacting. After being discharged, the reaction solution can be directly introduced into a detection instrument or collected or processed according to the type of the reaction and the actual situation.
The embodiment of the utility model is suitable for three types of catalytic reduction reactions by matching and combining the reaction containers, and can effectively improve the efficiency of the catalytic carbon dioxide reduction reaction.
The catalytic carbon dioxide reduction reaction used in the embodiment of the utility model mainly comprises a photocatalytic carbon dioxide reduction reaction, an electrocatalytic carbon dioxide reduction reaction and a photoelectrocatalytic carbon dioxide reduction reaction.
When adapted for use in a photocatalytic carbon dioxide reduction reaction, as shown in fig. 2, in an embodiment of the present invention, a light source 5 is also included. The light source 5 is disposed above the reactor 1.
Light rays emitted from the light source 5 pass through the reactor 1 and enter the reaction chamber to catalyze the gas reduction reaction. The reactor 1 is preferably provided with a transparent cover and is preferably detachably connected to facilitate the light injection.
And as shown in conjunction with fig. 3, in an embodiment of the present invention, the first container further comprises a housing 6. A constant temperature cavity is arranged in the shell 6, and a constant temperature liquid inlet 7 and a constant temperature liquid outlet 8 are arranged on the shell 6. The constant temperature liquid inlet 7 and the constant temperature liquid outlet 8 are respectively communicated with the constant temperature cavity, and the constant temperature liquid inlet 7 and the constant temperature liquid outlet 8 are mutually communicated through the constant temperature cavity. The constant temperature liquid inlet 7 and the constant temperature liquid outlet 8 are respectively arranged at two sides of the shell 6 and distributed from bottom to top.
The reactor 1 is arranged in a thermostatic chamber. Get into 6 interior constant temperature chambeies of casing through coolant liquid or constant temperature liquid to guarantee reactor 1 temperature, promote reaction efficiency, prevent because the continuous irradiation of light source, lead to temperature rise in the reaction vessel, the catalyst that probably causes is poisoned, influences the reaction and goes on.
When adapted for use in an electrocatalytic carbon dioxide reduction reaction, as shown in fig. 4 and 5, in an embodiment of the utility model, a second container 10 is also included.
The second vessel 10 is connected to the reactor 1 of the first vessel and communicates with the reaction chamber of the reactor 1. Preferably through a cylindrical passage.
As shown in fig. 4, a first electrode 9 is also provided in the reaction chamber of the reactor 1. The first electrode 9 is connected to the catalyst support 4. As shown in fig. 5, a second electrode is further disposed in the second container 10, and a proton exchange membrane 12 is further disposed between the second container and the reaction chamber.
And preferably the second container 10 and the reaction chamber are both provided with electrolyte. The second vessel 10 mainly functions as a current loop. The second container 10 now contains the same electrolyte as the reactor 1, while also receiving the electrodes.
The catalyst support 4 is made of an electrode material, i.e., a catalyst-supporting electrode material.
As shown in fig. 5, 6 and 7, it is preferable that the passage between the second vessel 10 and the reaction chamber is connected by two flanges 13. The proton exchange membrane 12 is disposed between two flanges 13. The proton exchange membrane has the function of allowing protons to pass through to form current, and interference caused by negative ions and other substances is avoided.
Preferably, the flange 13 is also matched with a flange cover 14, and the liquid channel of the reactor 1 can be directly sealed by the flange cover 14 when the photocatalytic CO2 is reduced, and the second container 10 is not connected any more.
When the reactor is applied to a photoelectrocatalytic carbon dioxide reduction reaction, the reactor vessels in the two cases can be integrated.
The utility model is described below in specific examples:
example 1
As shown in fig. 2 to 3, a reaction apparatus for photocatalytic carbon dioxide reduction includes a first vessel including a reactor 1.
A reaction cavity is arranged in the reactor 1. The reactor 1 is provided with a gas inlet 2 and a gas outlet 3.
The gas inlet 2 and the gas outlet 3 are respectively communicated with the reaction cavity.
A porous disc-shaped catalyst carrier 4 which is approximately vertical to the gas flow direction and is loaded with catalytic CO is arranged in the reaction cavity2The catalyst used is reduced. The gas entering from the gas inlet 2 needs to pass through the catalyst carrier 4, then fully contacts with the porous disc carrier loaded with the catalyst, and is discharged from the gas outlet 3 after fully reacting.
A light source 5 is also included. The light source 5 is disposed above the reactor 1. The reactor 1 is provided with a transparent sealing cover, and light rays emitted by the light source 5 pass through the reactor 1 and enter the reaction cavity to catalyze the gas reduction reaction.
Also included is a housing 6. A constant temperature cavity is arranged in the shell 6, and a constant temperature liquid inlet 7 and a constant temperature liquid outlet 8 are arranged on the shell 6. The constant temperature liquid inlet 7 and the constant temperature liquid outlet 8 are respectively communicated with the constant temperature cavity. The reactor 1 is arranged in a thermostatic chamber. The cooling liquid or the constant temperature liquid enters the constant temperature cavity in the shell 6, thereby ensuring the temperature of the reactor 1, improving the efficiency of the photocatalytic reduction reaction,
example 2
As shown in fig. 4-5, a reaction apparatus for electrocatalytic carbon dioxide reduction includes a first vessel including a reactor 1.
A reaction cavity is arranged in the reactor 1. The reactor 1 is provided with a gas inlet 2 and a gas outlet 3.
The gas inlet 2 and the gas outlet 3 are respectively communicated with the reaction cavity.
A porous disc-shaped catalyst carrier 4 vertical to the reaction chamber is arranged in the reaction chamber, and catalytic CO is loaded on the porous disc-shaped catalyst carrier2The catalyst used is reduced. The gas entering from the gas inlet 2 needs to pass through the catalyst carrier 4, then fully contacts with the porous disc carrier loaded with the catalyst, fully reacts and then is discharged from the gas outlet 3.
A first electrode 9 is also arranged in the reaction chamber of the reactor 1. The first electrode 9 is connected to the catalyst carrier 4 made of an electrode material supporting a catalyst.
As shown in fig. 4, a Pt plate is preset at the position of the adjacent edge of the porous disk-shaped catalyst carrier 4, and the outside of the Pt plate is designed as an electrode and can be directly connected with an electrochemical workstation.
A second container 10 is also included. The second vessel 10 is connected to the reactor 1 of the first vessel through a cylindrical passage and communicates with the reaction chamber of the reactor 1.
A second electrode is arranged in the second container 10, and a proton exchange membrane 12 is arranged between the second container and the reaction cavity.
Electrolyte is arranged in the second container 10 and the reaction chamber.
The passage between the second vessel 10 and the reaction chamber is connected by two flanges 13. The proton exchange membrane 12 is disposed between two flanges 13.
Example 3
As shown in fig. 2-5, a reaction apparatus for photoelectrocatalytic carbon dioxide reduction includes a first vessel including a reactor 1.
A reaction cavity is arranged in the reactor 1. The reactor 1 is provided with a gas inlet 2 and a gas outlet 3.
The gas inlet 2 and the gas outlet 3 are respectively communicated with the reaction cavity.
A porous disc-shaped catalyst carrier 4 vertical to the reaction chamber is arranged in the reaction chamber, and catalytic CO is loaded on the porous disc-shaped catalyst carrier2The catalyst used is reduced. The gas entering from the gas inlet 2 needs to pass through the catalyst carrier 4, then fully contacts with the porous disc carrier loaded with the catalyst, and is discharged from the gas outlet 3 after fully reacting.
A light source 5 is also included. The light source 5 is disposed above the reactor 1. The reactor 1 is provided with a transparent sealing cover, and light rays emitted by the light source 5 pass through the reactor 1 and enter the reaction cavity to catalyze the gas reduction reaction.
Also included is a housing 6. A constant temperature cavity is arranged in the shell 6, and a constant temperature liquid inlet 7 and a constant temperature liquid outlet 8 are arranged on the shell 6. The constant temperature liquid inlet 7 and the constant temperature liquid outlet 8 are respectively communicated with the constant temperature cavity. The reactor 1 is arranged in a thermostatic chamber. The cooling liquid or the constant temperature liquid enters the constant temperature cavity in the shell 6, thereby ensuring the temperature of the reactor 1, improving the reaction efficiency,
the catalyst carrier 4 is made of an electrode material supporting a catalyst. Pt sheets are preset at the adjacent edge positions of the porous disc-shaped catalyst carrier to form a first electrode 9. The outside of the Pt sheet is designed into an electrode and can be directly connected with an electrochemical workstation.
A second container 10 is also included. The second vessel 10 is connected to the reactor 1 of the first vessel through a cylindrical passage and communicates with the reaction chamber of the reactor 1.
A second electrode is arranged in the second container 10, and a proton exchange membrane 12 is arranged between the second container and the reaction cavity.
Electrolyte is arranged in the second container 10 and the reaction chamber.
The passage between the second vessel 10 and the reaction chamber is connected by two flanges 13. The proton exchange membrane 12 is disposed between two flanges 13.
In conclusion, the reaction device for catalyzing the reduction of carbon dioxide provided by the embodiment of the utility model can effectively improve the efficiency of the catalytic reduction reaction.
The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, numerous simple deductions or substitutions may be made without departing from the spirit of the utility model, which shall be deemed to belong to the scope of the utility model.
Claims (10)
1. The utility model provides a reaction unit for catalyzing carbon dioxide reduction, its characterized in that, includes first container, first container includes the reactor, be equipped with the reaction chamber in the reactor, be equipped with gas inlet and gas outlet on the reactor, gas inlet and gas outlet respectively with the reaction chamber communicates with each other and gas inlet and gas outlet pass through each other the reaction chamber communicates with each other, be equipped with the catalyst carrier in the reaction chamber, the catalyst carrier will the reaction chamber is cut apart into inlet portion and outlet portion, inlet portion is close to gas inlet and is kept away from gas outlet, outlet portion is close to gas outlet and is kept away from gas inlet.
2. A reaction device for catalytic carbon dioxide reduction according to claim 1, characterized in that: the catalyst carrier is in the shape of a porous disc.
3. A reaction device for catalytic carbon dioxide reduction according to claim 1, characterized in that: the reactor also comprises a light source, wherein the light source is arranged above the reactor, and light rays emitted by the light source penetrate through the reactor and enter the reaction cavity to catalyze the gas reduction reaction.
4. A reaction device for catalytic carbon dioxide reduction according to claim 3, characterized in that: the first container further comprises a shell, a constant temperature cavity is arranged in the shell, a constant temperature liquid inlet and a constant temperature liquid outlet are formed in the shell, the constant temperature liquid inlet and the constant temperature liquid outlet are respectively communicated with the constant temperature cavity, the constant temperature liquid inlet and the constant temperature liquid outlet are mutually communicated through the constant temperature cavity, and the reactor is arranged in the constant temperature cavity.
5. A reaction device for catalytic carbon dioxide reduction according to claim 1, characterized in that: the reactor comprises a first container, a catalyst carrier and a second container, wherein the first container is arranged in the reactor, the second container is connected with the reactor of the first container and communicated with a reaction cavity of the reactor, a first electrode is further arranged in the reaction cavity of the reactor and connected with the catalyst carrier, a second electrode is further arranged in the second container, and a proton exchange membrane is further arranged between the second container and the reaction cavity.
6. A reaction unit for catalytic carbon dioxide reduction according to claim 5, characterized in that: electrolyte is arranged in the second container and the reaction cavity.
7. A reaction unit for catalytic carbon dioxide reduction according to claim 5, characterized in that: the first electrode and/or the second electrode are made of Pt sheets.
8. A reaction unit for catalytic carbon dioxide reduction according to claim 5, characterized in that: the catalyst carrier is made of an electrode material.
9. A reaction unit for catalytic carbon dioxide reduction according to claim 5, characterized in that: the second container is connected with the reaction cavity through two flanges.
10. A reaction unit for catalytic carbon dioxide reduction according to claim 9, characterized in that: the proton exchange membrane is arranged between the two flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122553459.2U CN216726648U (en) | 2021-10-22 | 2021-10-22 | Reaction device for catalyzing reduction of carbon dioxide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122553459.2U CN216726648U (en) | 2021-10-22 | 2021-10-22 | Reaction device for catalyzing reduction of carbon dioxide |
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| Publication Number | Publication Date |
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| CN216726648U true CN216726648U (en) | 2022-06-14 |
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| CN202122553459.2U Active CN216726648U (en) | 2021-10-22 | 2021-10-22 | Reaction device for catalyzing reduction of carbon dioxide |
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