CN114984884A - Experimental platform for preparing fuel by reforming carbon dioxide with assistance of plasma synergistic catalyst - Google Patents
Experimental platform for preparing fuel by reforming carbon dioxide with assistance of plasma synergistic catalyst Download PDFInfo
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- CN114984884A CN114984884A CN202210689783.3A CN202210689783A CN114984884A CN 114984884 A CN114984884 A CN 114984884A CN 202210689783 A CN202210689783 A CN 202210689783A CN 114984884 A CN114984884 A CN 114984884A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/087—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
- B01J19/088—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2/00—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Abstract
The invention relates to an experimental platform for preparing fuel by reforming carbon dioxide with the assistance of a plasma and a catalyst. The dielectric barrier discharge reactor comprises a catalyst, a fixing device, a tangential air inlet, a quartz tube, an external stainless steel electrode, an internal stainless steel electrode and the like. The external stainless steel electrode is tightly wrapped on the outer wall of the quartz flow tube at the outer layer, and the surface of the internal stainless steel electrode is wrapped with a second layer of quartz tube. The carbon dioxide can realize the high-efficiency directional conversion of the carbon dioxide under the synergistic action of the plasma and the catalyst; reaction gases such as carbon dioxide enter the reactor through two symmetrical hedging tangential air inlets on one side of the outer quartz flow tube, and rotational flow formed in the process can effectively prolong the detention time of the carbon dioxide in a plasma discharge area, cause discharge disturbance and enhance filament discharge on the wall surface of the quartz tube, thereby enhancing the effect of electric field intensity in a reaction area.
Description
Technical Field
The invention belongs to the technical field of catalytic reforming of carbon dioxide, and particularly relates to an experimental platform for preparing fuel by reforming carbon dioxide with the assistance of a plasma synergistic catalyst.
Background
Carbon dioxide is the most dominant greenhouse gas responsible for global climate change, while the combustion of fossil fuels is the largest source of carbon dioxide emissions. The use of fossil fuels has increased year by year over the last decades, resulting in a substantial increase in carbon dioxide emissions. It is essential to develop sustainable green energy and carbon dioxide emission approaches. In order to reduce carbon emissions, carbon capture and utilization technologies are considered to be the most potential methods of reducing carbon emissions. The carbon dioxide is changed into a recoverable fuel by a certain method.
Carbon dioxide is chemically stable, is not easily converted in a mild environment, and has a very low conversion rate at high temperatures. In recent years, non-equilibrium plasma has been regarded as a new activation technique. The non-equilibrium plasma has high content of high-energy electrons, the electron energy can reach 1-10eV, and the strong electron energy can activate inert molecules and promote chemical reaction. The non-equilibrium plasma technology can break through the conventional thermochemical reaction process and reduce the temperature required by the reaction through the interaction of high-energy electrons and active particles, thereby realizing the conversion of carbon dioxide under the conditions of normal pressure and low temperature.
The plasma generating mode has multiple modes, such as radio frequency discharge, sliding arc discharge, microwave discharge, dielectric barrier discharge and the like, and the dielectric barrier discharge has the advantages of low energy consumption, uniform and stable discharge, simple reactor structure and capability of being mixed with a catalyst such as Ni-Al 2 O 3 Fe-graphene, Ru-Al 2 O 3 And the like, and the excellent prospect is shown in the field of carbon dioxide reforming.
At present, in the research of plasma-assisted carbon dioxide conversion, directional conversion is difficult to realize due to the diversification of products; meanwhile, due to the structural and characteristic limitations of dielectric barrier discharge, the utilization rate of energy is low and needs to be improved.
Disclosure of Invention
The invention aims to overcome the defects of the existing experiment platform, provides an experiment platform for preparing fuel by reforming carbon dioxide under the assistance of plasma and a catalyst, and particularly relates to an experiment system which can realize low-temperature high-efficiency conversion of carbon dioxide under the dual actions of the plasma and the catalyst and perform qualitative and quantitative analysis on a final product.
The invention is realized by adopting the following technical scheme:
the plasma synergistic catalyst assists the experiment platform of carbon dioxide reforming fuel preparation, the experiment platform includes fuel supply system, dielectric barrier discharge reactor, high-voltage power system and product detecting system;
the fuel supply system is used for accurately supplying diluent gas, carbon dioxide and other reaction gases; heating the pipeline when liquid is present in the product so as to achieve vaporization of the liquid; controlling the pressure required by the reactor in the experimental process, and discharging the gas generated by the reaction out of the system;
the dielectric barrier discharge reaction system provides a reaction site with temperature and pressure required by an experiment; one side of the reactor is provided with two opposite-impact tangential air inlets; and a catalyst is filled between the double-layer discharge structures; simultaneously, a uniform plasma environment generated by the double-dielectric barrier discharge structure is provided;
the high-voltage power supply system is used for providing a continuous electric field for generating plasma and detecting the voltage and current change during reaction;
the product detection system is used for collecting and detecting products when the reaction is finished, and diagnosing and analyzing differential components in the carbon dioxide reforming process.
The invention is further improved in that the fuel supply system comprises reaction gas, a mass flow meter, control software, a heating band, a thermocouple, a temperature controller and a micro-regulating valve;
reaction gas and dilution gas are precisely controlled by a mass flow meter and control software and then are introduced into a tangential gas inlet of the reactor; under the regulation and control of a thermocouple and a temperature controller, the heating belt is wrapped on the outer side of the pipeline to realize the gasification of the liquid product; and the air amount discharged into the atmosphere is controlled by a micro-regulating valve so as to maintain the pressure in the reaction system to be constant.
The invention has the further improvement that the dielectric barrier discharge reaction system comprises an electric heating furnace, an outer-layer quartz flow tube, a tangential air inlet, a sealing flange, an external stainless steel electrode, an internal stainless steel rod electrode, an inner-layer quartz tube coated on the stainless steel rod internal electrode, a catalyst and a fixing device;
the whole reactor is placed in an electric heating furnace, and the electric heating furnace provides a controllable constant temperature area of 10cm for the whole reaction system; two opposite-impact tangential air inlets are arranged on one side of the reactor, and reaction gas such as carbon dioxide entering from the tangential opposite-impact air inlets can form airflow which spirally advances around a central axis and is formed between the inner-layer quartz tube and the outer-layer quartz tube, so that the detention time of the reaction gas in a plasma region is prolonged, discharge disturbance is provided to enhance filament discharge on the surface of the quartz tube, and the electric field intensity in a reaction region is enhanced; two ends of the reactor are sealed by a sealing flange combined with a rubber sealing ring; the external stainless steel electrode, the outer quartz flow tube, the inner quartz tube and the internal stainless steel rod electrode keep coaxial, and a double-layer dielectric barrier discharge structure ensures that uniform plasma is generated; placing corresponding catalysts in a plasma discharge region of the reactor, and fixing the catalysts by using quartz wool and other materials; holes are formed in the axes of the two sides of the sealing flange, built-in stainless steel bar electrodes are led out to be connected with a power supply, and a hole is formed in the flange side in the air outlet direction for air outlet.
The invention is further improved in that a synergistic effect is formed between the quartz tubes of the outer layer and the inner layer and the plasma, so that the conversion rate of carbon dioxide and the overall energy utilization rate are improved.
A further improvement of the present invention is that the double-layered quartz tube is capable of generating a uniform electric field.
The invention has the further improvement that the two opposite impact tangential air inlets prolong the detention time of the reaction gas in the plasma area, strengthen the filament discharge on the surface of the disturbance enhanced quartz tube and strengthen the electric field intensity in the reaction area.
In a further development of the invention, the electric furnace can provide starting reaction conditions of 298K-1273K for the reaction.
The invention has the further improvement that the high-voltage power supply system comprises a high-voltage power supply, a high-voltage probe, a current probe and an oscilloscope;
the positive electrode and the negative electrode of the high-voltage power supply are respectively connected with an external stainless steel electrode and an internal stainless steel rod electrode, and the voltage and the current generated in the discharging process are detected by a high-voltage probe and a current probe and are displayed on an oscilloscope.
The invention has the further improvement that the experimental platform does not limit the discharge mode of the high-voltage power supply, and high-voltage alternating current, high-voltage nanosecond pulse power supply and the like can be used.
The invention is further improved in that the product detection system comprises a gas chromatograph, a gas chromatograph/mass spectrometer and a computer control system;
the product is gasified by a heating belt arranged outside the pipeline and then enters a gas chromatograph and a gas chromatograph/mass spectrometer, and differential diagnosis and display are carried out under the control of a computer control system.
The invention has at least the following beneficial technical effects:
(1) the invention can be used for realizing efficient directional conversion of carbon dioxide in the environment of synergy of plasma and catalyst, and can improve the utilization rate of energy while improving the carbon dioxide;
(2) the dielectric barrier discharge reaction zone of the present invention does not limit the catalyst used in the experiment, such as Ni-Al 2 O 3 Fe-graphene, Ru-Al 2 O 3 Etc. can be used;
(3) the double-layer dielectric barrier discharge system can obtain non-equilibrium plasma with higher energy density, avoid the formation of thermal plasma, and is more beneficial to uniform discharge so as to form more uniform non-equilibrium plasma;
(4) the tangential gas inlet of the quartz flow tube prolongs the detention time of reaction gas in a plasma zone, strengthens disturbance, and enhances filament discharge on the surface of the quartz tube, thereby enhancing the electric field intensity in a reaction zone;
(5) the experimental platform of the invention does not limit the discharge mode of the high-voltage power supply, and high-voltage alternating current, high-voltage nanosecond pulse power supply and the like can be used.
Drawings
FIG. 1 is a schematic structural diagram of an experimental platform for preparing fuel by reforming carbon dioxide with the assistance of a plasma synergistic catalyst.
Fig. 2 and 3 are schematic diagrams of detailed structures of the dielectric barrier discharge reactor.
Description of reference numerals:
1-reaction gas, 2-mass flow meter and control software, 3-heating belt, 4-thermocouple and temperature controller, 5-micro-regulating valve, 6-electronic pressure gauge, 7-electric heating furnace, 8-outer layer quartz flow tube, 9-tangential air inlet, 10-sealing flange, 11-external stainless steel electrode, 12-internal stainless steel electrode, 13-inner layer quartz tube, 14-catalyst and fixing device, 15-oscilloscope, 16-voltage probe, 17-current monitoring ring, 18-high voltage power supply, 19-gas chromatograph, 20-gas chromatography/mass spectrometer and 21-computer control system.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to fig. 3, the experimental platform for preparing fuel by reforming carbon dioxide with the assistance of plasma and a catalyst provided by the invention comprises an air supply system, a dielectric barrier discharge reaction system, a high-voltage power supply system and a product detection system; the gas supply system is used for accurately supplying diluent gas and carbon dioxide reaction gas, heating the pipeline when liquid exists in the product so as to realize liquid vaporization, and controlling the pressure required by the whole reaction system in the experiment process; the dielectric barrier discharge reaction system is used for providing a reaction site of temperature and pressure required by an experiment, two opposite impact tangential air inlets are designed on one side of the reactor, a catalyst is filled between the double-layer dielectric barrier discharge structures, and a uniform non-equilibrium plasma environment generated by the double-layer dielectric barrier discharge structures is provided; the high-voltage power supply system is used for providing a continuous electric field for generating plasma and monitoring the voltage and current change during reaction; and the product detection system is used for collecting and detecting the product after the reaction is finished, and realizing the determination and analysis of differential components in the carbon dioxide reforming process.
The fuel supply system comprises reaction gas 1, a mass flowmeter and control software 2, a heating belt 3, a thermocouple and temperature controller 4, a micro-regulating valve 5 and an electronic pressure gauge 6.
Reaction gas 1 and diluent gas are precisely controlled by a mass flow meter and control software 2 and then are introduced into a tangential gas inlet of the reactor, a heating belt 3 heats a pipeline to a specified temperature under the regulation and control of a thermocouple and a temperature controller 4, the control of the reaction temperature and the gas of a liquid product are realized, and corresponding gas amount is discharged under the control of a micro-regulating valve 5 and an electronic pressure gauge 6 so as to maintain the constant pressure in the reaction system.
The main structure of the reactor in the dielectric barrier discharge system comprises an electric heating furnace 7, an outer-layer quartz flow tube 8, a tangential air inlet 9, a sealing flange 10, an external stainless steel electrode 11, an internal stainless steel electrode 12, an inner-layer quartz tube 13 and a catalyst and fixing device 14. Catalysts such as Ni-Al 2 O 3 Fe-graphene, Ru-Al 2 O 3 And the like may be used.
The whole reactor is placed in an electric heating furnace 7; two opposite-impact tangential air inlets 9 are arranged on one side of the reactor, and carbon dioxide reaction gas entering from the tangential opposite-impact air inlets can form airflow spirally advancing around a central axis between the inner-layer quartz tube 13 and the outer-layer quartz flow tube 8, so that the detention time of the reaction gas in a plasma region is prolonged, discharge disturbance is provided, filament discharge on the surface of the quartz tube is enhanced, and the electric field intensity in a reaction region is enhanced; the external stainless steel electrode 11, the outer quartz flow tube 8, the inner quartz tube 13 and the internal stainless steel electrode 12 are coaxial, and the double-layer dielectric barrier discharge structure ensures that uniform non-equilibrium plasma is generated; placing corresponding catalysts in a plasma discharge region of the reactor, and fixing the catalysts by using a quartz cotton material; holes are formed in the axle centers of two sides of the sealing flange 10, built-in stainless steel electrodes are led out to be connected with a power supply, and meanwhile, a hole is formed in the flange side in the air outlet direction for air outlet.
A double-layer dielectric barrier discharge system is formed after two layers of quartz tubes are arranged between the discharged electrodes, so that non-equilibrium plasma with higher energy density can be obtained, the formation of thermal plasma is avoided, and the uniform discharge is facilitated; the reaction system comprises a tangential gas inlet 9 which is used for prolonging the detention time of reaction gas in a plasma area, enhancing disturbance and filament discharge on the surface of the quartz tube, thereby enhancing the electric field intensity in the reaction area and improving the utilization rate of electric energy.
The high-voltage power supply system comprises a high-voltage power supply 18, a voltage probe 16, a current monitoring ring 17 and an oscilloscope 15; the positive electrode and the negative electrode of the high-voltage power supply 18 are respectively connected with an external stainless steel electrode and an internal stainless steel electrode, and the voltage and current changes generated in the discharging process are detected by a voltage probe 16 and a current monitoring ring 17 and displayed on an oscilloscope 15.
In the power supply system, the high-voltage power supply 18 can be conveniently replaced, and high-voltage alternating current, high-voltage nanosecond pulse current and the like can be used on an experimental platform according to different research requirements.
The product detection system consists of a gas chromatograph 19, a gas chromatograph/mass spectrometer 20 and a computer control system 21, wherein the product is gasified by a heating belt 3 arranged outside a pipeline and then enters the gas chromatograph 19 and the gas chromatograph/mass spectrometer 20, differential measurement and display are carried out under the control of the computer control system 21, and each group of experiments are repeated for more than three times so as to ensure the accuracy of the experiment result.
The invention relates to an operation mode of an experimental platform for preparing fuel by reforming carbon dioxide with the assistance of a plasma synergistic catalyst, which specifically comprises the following steps: carbon dioxide and other reactors and diluent gas enter the dielectric barrier discharge reactor through a hedging tangential air inlet on the quartz flow tube, and a high-voltage power supply is turned on to select a discharge mode required by research; the reaction gas rotates around the central axis of the reactor to advance, flows to the outlet of the reactor after passing through the plasma discharge region and the catalyst, and then enters the product detection system under the regulation of the micro-regulating valve to perform qualitative and quantitative detection.
The specific working process of the invention is as follows:
(1) firstly, heating an electric heating furnace and a heating belt to the temperature condition set by an experiment;
(2) the reaction gas accurately controls the set air input through a mass flow meter and control software, enters an outer layer quartz flow tube through two opposite tangential air inlets to form a rotational flow, the air pressure state in the reactor is adjusted by using a micro-adjusting valve, and the pressure in the device is detected and displayed by an electronic pressure gauge;
(3) then, setting discharge parameters of a discharge power supply, applying voltage between an external stainless steel electrode and an internal stainless steel electrode to start discharging, and respectively detecting the discharge voltage and the discharge current through a voltage probe and a current monitoring ring and displaying the discharge voltage and the discharge current on an oscilloscope;
(4) and after the discharge process is stable, introducing the reacted gas into a gas chromatograph and a gas chromatograph/mass spectrometer for measuring the components of the product and feeding back the detection result on a computer control system. Through analysis of experimental result data, chemical reaction kinetic characteristics of carbon dioxide in the conversion process under different boundary conditions can be obtained, and conditions most suitable for carbon dioxide conversion and optimal energy utilization rate are explored according to results.
Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The experimental platform for preparing the fuel by reforming the carbon dioxide under the assistance of the plasma and the catalyst is characterized by comprising an air supply system, a dielectric barrier discharge reaction system, a high-voltage power supply system and a product detection system;
the gas supply system is used for accurately supplying diluent gas and carbon dioxide reaction gas, heating the pipeline when liquid exists in the product so as to realize liquid vaporization, and controlling the pressure required by the whole reaction system in the experiment process;
the dielectric barrier discharge reaction system is used for providing a reaction site of temperature and pressure required by an experiment, two opposite impact tangential air inlets are designed on one side of the reactor, a catalyst is filled between the double-layer dielectric barrier discharge structures, and a uniform non-equilibrium plasma environment generated by the double-layer dielectric barrier discharge structures is provided;
the high-voltage power supply system is used for providing a continuous electric field for generating plasma and monitoring the voltage and current change during reaction;
and the product detection system is used for collecting and detecting the product after the reaction is finished, and realizing the determination and analysis of differential components in the carbon dioxide reforming process.
2. The experimental platform for preparing fuel by reforming carbon dioxide under the assistance of plasma synergistic catalyst of claim 1, wherein the fuel supply system comprises reaction gas, a mass flow meter, control software, a heating belt, a thermocouple, a temperature controller and a micro-regulating valve;
reaction gas and diluent gas are introduced into a tangential gas inlet of the reactor after being accurately controlled by a mass flow meter and control software, the pipeline is heated to a specified temperature by a heating belt under the regulation and control of a thermocouple and a temperature controller, the control of the reaction temperature and the gas of a liquid product are realized, and the corresponding gas is discharged by controlling a micro-regulating valve so as to maintain the constant pressure in the reaction system.
3. The experimental platform for preparing fuel by reforming carbon dioxide under the assistance of plasma and a catalyst according to claim 1, wherein the dielectric barrier discharge reaction system comprises an electric heating furnace, an outer-layer quartz flow tube, a tangential air inlet, an external stainless steel electrode, an internal stainless steel electrode, an inner-layer quartz tube coated on the stainless steel electrode, a catalyst and a fixing device;
the whole reactor is placed in an electric heating furnace; two opposite-impact tangential air inlets are arranged on one side of the reactor, and carbon dioxide reaction gas entering from the tangential opposite-impact air inlets can form airflow spirally advancing around a central axis between the inner-layer quartz tube and the outer-layer quartz flow tube, so that the detention time of the reaction gas in a plasma region is prolonged, discharge disturbance is provided, filament discharge on the surface of the quartz tube is enhanced, and the electric field intensity in a reaction region is enhanced; the external stainless steel electrode, the outer quartz flow tube, the inner quartz tube and the internal stainless steel electrode are coaxial, and the double-layer dielectric barrier discharge structure ensures that uniform non-equilibrium plasma is generated; placing corresponding catalyst, such as Ni-Al, in the plasma discharge region of the reactor 2 O 3 Fe-graphene, Ru-Al 2 O 3 And the like, and the quartz cotton material is used for fixing; holes are formed in the axes of two sides of the sealing flange, the built-in stainless steel electrode is led out to be connected with a power supply, and a hole is formed in the flange side in the air outlet direction for air outlet.
4. The experimental platform for preparing fuel by reforming carbon dioxide with the assistance of plasma and catalyst as claimed in claim 3, wherein the electric heating furnace provides a constant temperature area of 100mm for the whole reaction system.
5. The experimental platform for preparing fuel by reforming carbon dioxide with the assistance of the plasma and the catalyst as claimed in claim 3, wherein two ends of the reactor are sealed by sealing flanges combined with rubber sealing rings.
6. The experimental platform for preparing fuel by reforming carbon dioxide with the assistance of the plasma and the catalyst as claimed in claim 3, wherein the double-layer quartz tube can generate a more uniform electric field, so as to generate a more uniform non-equilibrium plasma region.
7. The experimental platform for preparing fuel by reforming carbon dioxide with the assistance of the plasma synergistic catalyst according to claim 3, wherein the two opposite tangential air inlets prolong the residence time of the reaction gas in the plasma zone and enhance the filament discharge on the surface of the turbulence-enhanced quartz tube, thereby enhancing the electric field intensity in the reaction zone.
8. The experimental platform for preparing fuel by reforming carbon dioxide with the assistance of plasma synergistic catalyst as claimed in claim 3, characterized in that, the electric heating furnace can provide a wider initial temperature condition of 298K-1273K for the reaction.
9. The experimental platform for preparing fuel by reforming carbon dioxide under the assistance of the plasma synergistic catalyst according to claim 3, wherein the power supply system of the high-voltage power supply comprises a high-voltage power supply, a voltage probe, a current monitoring ring and an oscilloscope;
the positive electrode and the negative electrode of the high-voltage power supply are respectively connected with the external stainless steel electrode and the internal stainless steel electrode, and the voltage and current changes generated in the discharging process are detected by the voltage probe and the current monitoring ring and are displayed on the oscilloscope.
10. The experimental platform for preparing fuel by reforming carbon dioxide under the assistance of plasma synergistic catalyst of claim 1, wherein the product detection system comprises a gas chromatograph, a gas chromatograph/mass spectrometer and a computer control system;
and gasifying the product through a heating belt arranged outside the pipeline, then feeding the gasified product into a gas chromatograph and a gas chromatograph/mass spectrometer, carrying out differential measurement and displaying under the control of a computer control system, and repeating each group of experiments for more than three times to ensure the accuracy of the experimental result.
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|---|---|---|---|---|
| CN115724404A (en) * | 2022-11-14 | 2023-03-03 | 山东大学 | Experimental device and method for converting low-pressure carbon dioxide into oxygen through discharge |
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