CN211837266U - Photo-thermal catalytic reduction carbon dioxide high-pressure reactor - Google Patents
Photo-thermal catalytic reduction carbon dioxide high-pressure reactor Download PDFInfo
- Publication number
- CN211837266U CN211837266U CN202020330172.6U CN202020330172U CN211837266U CN 211837266 U CN211837266 U CN 211837266U CN 202020330172 U CN202020330172 U CN 202020330172U CN 211837266 U CN211837266 U CN 211837266U
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- inner container
- carbon dioxide
- air inlet
- stainless steel
- reaction kettle
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 36
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 36
- 238000010531 catalytic reduction reaction Methods 0.000 title claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 40
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 29
- 239000010935 stainless steel Substances 0.000 claims abstract description 29
- 238000005485 electric heating Methods 0.000 claims abstract description 21
- 239000003054 catalyst Substances 0.000 claims abstract description 20
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 19
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 19
- 238000003760 magnetic stirring Methods 0.000 claims abstract description 18
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 18
- 238000000926 separation method Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000007864 aqueous solution Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005286 illumination Methods 0.000 abstract description 2
- 238000006722 reduction reaction Methods 0.000 description 8
- 230000001699 photocatalysis Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model relates to a photo-thermal catalytic reduction carbon dioxide high-pressure reactor, which comprises a stainless steel reaction kettle, a magnetic stirring electric heating sleeve, an air inlet pipe and an air outlet pipe, wherein the kettle body of the stainless steel reaction kettle is wrapped in the magnetic stirring electric heating sleeve, and a polytetrafluoroethylene reactor inner container is arranged inside the stainless steel reaction kettle; the top of the stainless steel reaction kettle is provided with a kettle cover, and both sides of the kettle cover are respectively provided with an air inlet pipe and an air outlet pipe; the inner container of the polytetrafluoroethylene reactor comprises an upper inner container, a lower inner container and a middle separation support plate. The inside of the photo-thermal catalytic reduction carbon dioxide high-pressure reactor is of a two-layer structure, the lower layer of water is heated and vaporized into water vapor, and the surface interface of the upper layer of catalyst adsorbs carbon dioxide molecules and the water vapor and reacts under the illumination condition.
Description
Technical Field
The utility model relates to a carbon dioxide gas entrapment and utilization field, concretely relates to light and heat catalytic reduction carbon dioxide high pressure reactor.
Background
Excessive emissions of carbon dioxide have caused various environmental and climate problems. The utilization of renewable energy sources solar energy to drive photochemical conversion of carbon dioxide into valuable fuels and chemicals can avoid substantial accumulation of carbon dioxide and can simultaneously realize carbon recycling. Photocatalytic carbon dioxide reduction is therefore considered one of the most economical and environmentally friendly ways to improve environmental and energy issues.
The photocatalytic carbon dioxide reduction system can be classified into a liquid-solid system and a gas-solid system, the former catalyst is dispersed in water to form slurry, but for a porous catalyst having a large specific surface area, the gas-solid system is more beneficial to fully utilize the pore structure of the catalyst. Carbon dioxide gas molecules are trapped in the pores of the catalyst in advance, and after the catalyst is irradiated with light, photo-generated electrons on the surface interface of the catalyst are transferred to carbon dioxide to be reduced.
The low catalytic efficiency is a common problem in the photocatalytic carbon dioxide reduction technology. The transfer of the photo-generated electrons to the surface of the catalyst and to carbon dioxide can be accelerated in a heat-assisted mode, and the utilization rate of the photo-generated electrons in the reduction reaction of the carbon dioxide is improved. In addition, the pressurizing mode can increase the concentration of carbon dioxide in the system, and improve the reaction rate and the yield of reduction products.
SUMMERY OF THE UTILITY MODEL
In order to make full use of light catalyst's pore structure and improve photocatalysis carbon dioxide reduction efficiency as far as possible, the utility model provides a light and heat catalytic reduction carbon dioxide high pressure reactor, this reactor is inside to be divided into two-layer structure, and lower floor's water is heated the vaporization and is steam, and upper catalyst surface adsorbs carbon dioxide molecule and steam to take place the reaction under the illumination condition.
In order to solve the technical problem, the utility model provides a technical scheme is:
a photo-thermal catalytic reduction carbon dioxide high-pressure reactor comprises a stainless steel reaction kettle, a magnetic stirring electric heating sleeve, an air inlet pipe and an air outlet pipe, wherein the kettle body of the stainless steel reaction kettle is wrapped in the magnetic stirring electric heating sleeve, and a polytetrafluoroethylene reactor inner container is arranged inside the stainless steel reaction kettle; the top of the stainless steel reaction kettle is provided with a kettle cover, and both sides of the kettle cover are respectively provided with an air inlet pipe and an air outlet pipe; the inner container of the polytetrafluoroethylene reactor comprises an upper inner container, a lower inner container and a middle separation supporting plate; the lower part of the inner container is a cylindrical cup body, and the periphery of the top end of the cup wall of the cylindrical cup body is thinned to form a circle of steps; the upper part inner container is an annular component, the inner periphery of the bottom end of the annular component of the upper part inner container is thinned to form a circle of steps, and the steps are sleeved on the steps of the cylindrical cup body and fixed with the cylindrical cup body into a whole; the separation supporting plate is erected between the upper inner container and the lower inner container, the catalyst is paved in the middle area of the separation supporting plate, the hole opening area is arranged around the middle area, and the air inlet pipe extends into the cylindrical cup body of the lower inner container from the side of the hole opening area.
Furthermore, the magnetic stirring electric heating jacket comprises an electric heating jacket sleeve body at the periphery of the reaction kettle and a magnetic stirrer at the lower part, the stainless steel reaction kettle is wrapped in the magnetic stirring electric heating jacket sleeve body, the magnetic stirrer is provided with a temperature and rotating speed display, and a magnet is placed in an inner container of the polytetrafluoroethylene reactor.
Furthermore, quartz glass is sealed at the top of the kettle cover, and the joint of the kettle cover and the stainless steel reaction kettle is sealed through a flange.
Furthermore, a thermocouple is suspended at the upper part of the inner container of the polytetrafluoroethylene reactor.
Further, kettle cover both sides air inlet and gas outlet have respectively, the air inlet in penetrate the intake pipe, penetrate the outlet duct in the gas outlet, all seal through the sealing washer around the intake pipe of air inlet department and the outlet duct of gas outlet department.
The cylindrical cup body is internally filled with aqueous solution, and the air inlet pipe extends into the aqueous solution of the cylindrical cup body of the lower liner from the opening area; the area of the opening around the middle area of the separation supporting plate is used for water vapor to pass through.
Furthermore, the intake pipe on be equipped with the needle valve that admits air, the outlet duct on be equipped with the needle valve of giving vent to anger, control respectively and admit air and give vent to anger speed.
Furthermore, a pressure gauge is connected into the stainless steel reaction kettle.
Has the advantages that:
the catalyst in the photo-thermal catalytic reduction carbon dioxide high-pressure reactor of the utility model does not need to be soaked in the water solution for a long time or coated on the inner surface of the reactor in advance, thus prolonging the service life of the catalyst and facilitating the recovery and the reuse; the reactant gas is in gas-solid contact with the catalyst, so that the effective contact area is increased, and the mass transfer efficiency of carbon dioxide and water vapor on the surface interface of the catalyst is increased; most of the water vapor is concentrated at the lower part of the reactor, so that the light transmittance of the upper reaction area is increased, and the light utilization rate is improved; the heat assistance accelerates the transfer rate of the photoproduction electrons on the surface of the catalyst and reduces the recombination probability of the photoproduction electrons and holes; the high carbon dioxide concentration increases the rate of the photocatalytic reduction reaction and the yield of the reduction product.
Drawings
FIG. 1: the utility model discloses a structural schematic diagram of light and heat catalytic reduction carbon dioxide high pressure reactor.
FIG. 2: the structure of the inner container of the polytetrafluoroethylene reactor is shown schematically.
In the figure: 1-magnetic stirring electric heating jacket, 2-temperature and rotating speed display, 3-stainless steel reaction kettle, 4-flange, 5-kettle cover, 6-air inlet pipe, 7-air inlet needle valve, 8-air outlet pipe, 9-air outlet needle valve, 10-pressure gauge, 11-polytetrafluoroethylene reactor inner container, 11-1-cylindrical cup body, 11-2-aqueous solution, 11-3-separation support plate, 11-4-catalyst, 11-5-annular member and 11-6-thermocouple.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
A photo-thermal catalytic reduction carbon dioxide high-pressure reactor comprises a stainless steel reaction kettle 3, a magnetic stirring electric heating jacket 1, an air inlet pipe 6 and an air outlet pipe 8, wherein the kettle body of the stainless steel reaction kettle 3 is wrapped in the magnetic stirring electric heating jacket 1, and a polytetrafluoroethylene reactor inner container 11 is arranged inside the stainless steel reaction kettle 3; the top of the stainless steel reaction kettle 3 is provided with a kettle cover 5, and both sides of the kettle cover 5 are respectively provided with an air inlet pipe 6 and an air outlet pipe 8; the inner container 11 of the polytetrafluoroethylene reactor comprises an upper inner container part, a lower inner container part and a middle separation support plate 11-3.
The lower part of the inner container is a cylindrical cup body 11-1, and the periphery of the top end of the cup wall of the cylindrical cup body 11-1 is thinned to form a circle of steps; the upper liner is an annular component 11-5, the inner periphery of the bottom end of the annular component 11-5 of the upper liner is thinned to form a circle of steps, and the steps are sleeved on the steps of the cylindrical cup body 11-1 and fixed with the cylindrical cup body 11-1 into a whole; the separation support plate 11-3 is erected between the upper and lower part liners, the catalyst 11-4 is laid in the middle area of the separation support plate 11-3, the periphery of the middle area is an open hole area, and the air inlet pipe 6 extends into the cylindrical cup body 11-1 of the lower part liner from the side of the open hole area.
The magnetic stirring electric heating jacket 1 comprises an electric heating jacket sleeve body at the periphery of the reaction kettle and a magnetic stirrer at the lower part, the stainless steel reaction kettle 3 is wrapped in the electric heating jacket sleeve body of the magnetic stirring electric heating jacket 1, the magnetic stirrer is provided with a temperature and rotating speed display 2, and magnetons are placed in a polytetrafluoroethylene reactor inner container 11.
The top of the kettle cover 5 is sealed with quartz glass, and the joint of the kettle cover 5 and the stainless steel reaction kettle 3 is sealed by a flange 4.
A thermocouple 11-6 is suspended on the upper part of the inner container 11 of the polytetrafluoroethylene reactor.
5 both sides of kettle cover have air inlet and gas outlet respectively, the air inlet in penetrate intake pipe 6, penetrate outlet duct 8 in the gas outlet, all seal through the sealing washer around 6 and 8 of outlet duct of gas outlet department of intake pipe of gas inlet department.
The cylindrical cup body 11-1 is filled with the aqueous solution 11-2, and the air inlet pipe 6 extends into the aqueous solution 11-2 of the cylindrical cup body 11-1 of the lower liner from the opening area; the area of the opening around the middle area of the separation supporting plate 11-3 is used for water vapor to pass through.
The intake pipe 6 on be equipped with the needle valve 7 that admits air, outlet duct 8 on be equipped with the needle valve 9 of giving vent to anger, control respectively and admit air and give vent to anger speed.
A pressure gauge 10 is connected into the stainless steel reaction kettle 3.
The reaction temperature is controlled by setting the heating temperature of the magnetic stirring electric heating jacket 1. The air inlet speed and the air outlet speed are controlled by adjusting the opening degree of the air inlet needle valve 7 and the air outlet needle valve 9. The pressure gauge 10 displays the actual pressure inside the inner container 11 of the polytetrafluoroethylene reactor.
When in use, magnetons are put at the bottom of the inner container 11 of the polytetrafluoroethylene reactor, 15ml of water is added, and 50mg of catalyst 11-4 is evenly spread in the middle of the separation supporting plate 11-3. Putting the inner container 11 of the polytetrafluoroethylene reactor into the stainless steel reaction kettle 3, and screwing the bolt of the flange 4 on the stainless steel reaction kettle 3.
The inlet needle valve 7 and the outlet needle valve 9 of the stainless steel reaction kettle 3 are closed. And opening the air inlet needle valve 7, slowly introducing carbon dioxide gas at a constant speed, continuously increasing the reading of the pressure gauge 10, closing the air inlet needle valve 7 when the pressure reaches 0.6MPa, opening the air outlet needle valve 9, and slowly emptying the air at a constant speed. When the pressure reading is 0, the outlet needle valve 9 is closed. The inflation and deflation are repeated for a plurality of times. The air inlet needle valve 7 and the air outlet needle valve 9 are both set to be in a closed state, and the reading of a pressure gauge 10 is 0.6 MPa.
The temperature and rotation speed display 2 of the magnetic stirring electric heating jacket 1 is turned on, the temperature is set as 120 ℃, and the rotation speed is set as 200 rpm. After 30 minutes of reaction, the reaction was overhead-illuminated with a lamp source and allowed to react for 6 hours under these conditions. After the reaction, the lamp source is turned off, the rotation speed of the magnetic stirring is adjusted to 100rpm, and the product is detected on line by using a gas chromatography.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention in any form, and any skilled person familiar with the art will not depart from the technical scope of the present invention, and the technical spirit of the present invention will be any simple modification, equivalent replacement, and improvement made by the above embodiments, and the like, all still belong to the technical scope of the present invention.
Claims (8)
1. The utility model provides a light and heat catalytic reduction carbon dioxide high pressure reactor which characterized in that: the reactor comprises a stainless steel reaction kettle, a magnetic stirring electric heating sleeve, an air inlet pipe and an air outlet pipe, wherein the kettle body of the stainless steel reaction kettle is wrapped in the magnetic stirring electric heating sleeve, and a polytetrafluoroethylene reactor inner container is arranged inside the stainless steel reaction kettle; the top of the stainless steel reaction kettle is provided with a kettle cover, and both sides of the kettle cover are respectively provided with an air inlet pipe and an air outlet pipe; the inner container of the polytetrafluoroethylene reactor comprises an upper inner container, a lower inner container and a middle separation supporting plate; the lower part of the inner container is a cylindrical cup body, and the periphery of the top end of the cup wall of the cylindrical cup body is thinned to form a circle of steps; the upper part inner container is an annular component, the inner periphery of the bottom end of the annular component of the upper part inner container is thinned to form a circle of steps, and the steps are sleeved on the steps of the cylindrical cup body and fixed with the cylindrical cup body into a whole; the separation supporting plate is erected between the upper inner container and the lower inner container, the catalyst is paved in the middle area of the separation supporting plate, the hole opening area is arranged around the middle area, and the air inlet pipe extends into the cylindrical cup body of the lower inner container from the side of the hole opening area.
2. The high pressure reactor for photo-thermal catalytic reduction of carbon dioxide as claimed in claim 1, wherein: the magnetic stirring electric heating jacket comprises an electric heating jacket sleeve body at the periphery of the reaction kettle and a magnetic stirrer at the lower part, the stainless steel reaction kettle is wrapped in the magnetic stirring electric heating jacket sleeve body, the magnetic stirrer is provided with a temperature and rotating speed display, and a magneton is placed in a liner of the polytetrafluoroethylene reactor.
3. The high pressure reactor for photo-thermal catalytic reduction of carbon dioxide as claimed in claim 1, wherein: the top of the kettle cover is sealed with quartz glass, and the joint of the kettle cover and the stainless steel reaction kettle is sealed through a flange.
4. The high pressure reactor for photo-thermal catalytic reduction of carbon dioxide as claimed in claim 1, wherein: the upper part of the inner container of the polytetrafluoroethylene reactor is suspended with a thermocouple.
5. The high pressure reactor for photo-thermal catalytic reduction of carbon dioxide as claimed in claim 1, wherein: kettle cover both sides air inlet and gas outlet have respectively, the air inlet in penetrate the intake pipe, penetrate the outlet duct in the gas outlet, all seal through the sealing washer around the intake pipe of air inlet department and around the outlet duct of gas outlet department.
6. The high pressure reactor for photo-thermal catalytic reduction of carbon dioxide as claimed in claim 1, wherein: the cylindrical cup body is internally filled with aqueous solution, and the air inlet pipe extends into the aqueous solution of the cylindrical cup body of the lower liner from the opening area; the area of the opening around the middle area of the separation supporting plate is used for water vapor to pass through.
7. The high pressure reactor for photo-thermal catalytic reduction of carbon dioxide as claimed in claim 1, wherein: the air inlet pipe is provided with an air inlet needle valve, the air outlet pipe is provided with an air outlet needle valve, and the air inlet speed and the air outlet speed are respectively controlled.
8. The high pressure reactor for photo-thermal catalytic reduction of carbon dioxide as claimed in claim 1, wherein: and a pressure gauge is connected into the stainless steel reaction kettle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020330172.6U CN211837266U (en) | 2020-03-17 | 2020-03-17 | Photo-thermal catalytic reduction carbon dioxide high-pressure reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020330172.6U CN211837266U (en) | 2020-03-17 | 2020-03-17 | Photo-thermal catalytic reduction carbon dioxide high-pressure reactor |
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| Publication Number | Publication Date |
|---|---|
| CN211837266U true CN211837266U (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020330172.6U Expired - Fee Related CN211837266U (en) | 2020-03-17 | 2020-03-17 | Photo-thermal catalytic reduction carbon dioxide high-pressure reactor |
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| CN (1) | CN211837266U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112609204A (en) * | 2020-12-15 | 2021-04-06 | 南京理工大学 | High-voltage photoelectrocatalysis reduction carbon dioxide experimental device |
| CN113634119A (en) * | 2021-09-01 | 2021-11-12 | 中国科学院重庆绿色智能技术研究院 | Low-pressure carbon dioxide reduction device and manufacturing and using method thereof |
| CN114832732A (en) * | 2022-05-25 | 2022-08-02 | 西安交通大学 | Mass transfer enhanced bubbling fixed bed photocatalytic carbon dioxide reduction reactor and method |
-
2020
- 2020-03-17 CN CN202020330172.6U patent/CN211837266U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112609204A (en) * | 2020-12-15 | 2021-04-06 | 南京理工大学 | High-voltage photoelectrocatalysis reduction carbon dioxide experimental device |
| CN112609204B (en) * | 2020-12-15 | 2021-11-26 | 南京理工大学 | High-voltage photoelectrocatalysis reduction carbon dioxide experimental device |
| CN113634119A (en) * | 2021-09-01 | 2021-11-12 | 中国科学院重庆绿色智能技术研究院 | Low-pressure carbon dioxide reduction device and manufacturing and using method thereof |
| CN114832732A (en) * | 2022-05-25 | 2022-08-02 | 西安交通大学 | Mass transfer enhanced bubbling fixed bed photocatalytic carbon dioxide reduction reactor and method |
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Granted publication date: 20201103 |