CN107741468B - Magneto-optic thermal synergistic catalyst evaluation device - Google Patents
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Abstract
A magneto-optic thermal synergistic catalyst evaluation device is characterized in that a magnetic field control unit provides a stable and constant magnetic field for catalytic reaction in a reactor (21), an illumination control unit provides illumination for the catalytic reaction, a temperature control unit provides heat energy for the catalytic reaction, a gas supply unit provides reaction gas for the catalytic reaction, and a product analysis unit analyzes components and yield of a catalytic reaction product. The gas supply unit, the reactor and the product analysis unit are communicated in sequence through gas pipelines. The temperature control unit is communicated with the reactor (21) through a liquid pipeline. The catalytic reaction chamber of the reactor (21) is positioned in a steady magnetic field generated by the magnetic field control unit. The light source of the illumination control unit is positioned outside the stable and constant magnetic field generated by the magnetic field generating unit; the reactor is provided with an optical window, and light emitted by the illumination control unit is irradiated on the catalyst in the catalytic reaction cavity of the reactor (21) through the optical window of the reactor.
Description
Technical Field
The present invention relates to a catalyst evaluation device.
Background
Greenhouse gas CO formed by combustion of fossil fuels2The global climate change problem caused by emissions has been increasingly aggravated, and has become a great threat to human beings and the global ecosystem. A potential solution is to electrolyze water to produce hydrogen by using renewable energy sources such as photovoltaic energy, wind power and the like, and then pass CO2To produce useful chemicals or fuels by catalytic hydrogenation. The scheme can help solve the problem of CO in the atmosphere2The environmental problems caused by the increased concentration can also be alleviated, and the problems of excessive dependence on fossil fuels and storage of renewable energy sources can also be alleviated. One key technical problem that restricts the large-scale application of this solution is CO2The existing thermocatalytic hydrogenation technology still generally has the problems of high energy consumption, poor catalyst stability, low yield of target products and the like, and the economy of large-scale application of the thermocatalytic hydrogenation technology still needs to be improved.
CO2The improvement of the technical level of the thermocatalytic hydrogenation needs the further development of the high-efficiency catalyst on one hand, and also needs to break through the limitation of the traditional thermocatalytic process on the other hand. For example, by using conventional control of temperature, pressure and space velocityWhen the catalytic reaction is prepared, the auxiliary external fields such as magnetic field, illumination and the like are applied to the reaction system, so that the catalytic reaction path can be optimized and CO can be promoted2Efficient transformation provides greater development space. Theoretically, the proper magnetic field and light condition are favorable for the thermal catalysis reaction process. The formation of intermediate species with strong reactivity, such as excited molecules, radical ions and the like in the reaction system can be promoted under proper illumination conditions. The application of proper magnetic field changes the surface energy level structure of the catalyst in the reaction system and the free radical reaction process through the influence of the magnetic field on the electron spin. CO 22Is a non-polar molecule with stable thermodynamics, has high reaction kinetic barrier and only depends on heat energy to activate CO2The molecules often require very high temperatures, which is also currently CO2The root cause of the high energy consumption required for chemical conversion. If the heat energy is utilized to activate CO2The molecules are simultaneously assisted by proper light conditions and magnetic field environment, so that the molecular material is more favorable for CO2Polarization and ionization of molecules to CO under mild reaction conditions and low energy consumption2Provides a possible path for efficient transformation.
At present, CO2The research of the thermal catalytic hydrogenation technology still basically depends on the traditional fixed bed catalyst evaluation micro-reaction device, and the catalyst is screened, the reaction mechanism is understood and the reaction process is optimized mainly by controlling the parameters of the reaction such as temperature, pressure, space velocity and the like, for example, the literature: preparation and characterization of highly dispersed Pd and Ru catalyst and its use in CO2Applications in hydroconversion (Renzhua 2015, doctor's academic thesis of Shandong university), "novel CO2Research on carbon-supported CuO/ZnO catalyst for hydro-synthesis of methanol (section Huamei, 2014, doctrine of northeast university). The design of the traditional fixed bed catalyst evaluation micro-reactor is designed based on the concept of driving catalytic reaction by only depending on heat energy, so that the micro fixed bed reactor is often wrapped in an electric heating furnace, which makes it very difficult to apply magnetic field and illumination to the catalyst in the reactor. At present, no catalyst evaluation device applied to research of magneto-optic thermal synergistic driving gas-solid catalytic reaction exists at home and abroad.
Disclosure of Invention
In order to evaluate the gas-solid catalytic reaction performance of the catalyst under the magneto-optic thermal coordination and fill up the blank of the device, the invention provides a magneto-optic thermal coordination catalyst evaluation device, which is used for solving the problem that the existing fixed bed catalyst evaluation device cannot apply three energies of magnetism, light and heat to the catalyst simultaneously and enables the three energies to be adjusted independently. The invention also has the characteristics of easy realization of miniaturization, easy replacement of the catalyst and the like.
The catalyst evaluation device of the present invention includes: the device comprises a reactor, a magnetic field control unit, an illumination control unit, a temperature control unit, a gas supply unit and a product analysis unit. The reactor is the place that realizes catalytic reaction, magnetic field control unit provides steady magnetic field for the catalytic reaction in the reactor, illumination control unit provides illumination for the catalytic reaction in the reactor, temperature control unit is used for providing heat energy for catalytic reaction, the air feed unit is used for providing reaction gas for catalytic reaction, the analysis of composition and the output that the product analysis unit is used for the catalytic reaction product. Wherein, the gas supply unit, the reactor and the product analysis unit are communicated in sequence through a gas pipeline. The temperature control unit adopts a liquid heat conduction mode to control the temperature and is communicated with the reactor through a liquid pipeline. The reactor is provided with a catalytic reaction cavity for placing a catalyst, and the catalytic reaction cavity is positioned in a stable and constant magnetic field generated by the magnetic field control unit. The illumination control unit consists of a light source and a light guide component, wherein the light source is positioned outside the stable and constant magnetic field generated by the magnetic field generating unit. The reactor has an optical window. The light emitted by the illumination control unit is irradiated in the catalytic reaction cavity of the reactor through the optical window of the reactor.
The reactor consists of a reactor main body, an optical window, a top cover and a bottom cover. The top cover is positioned above the reactor main body and is connected with the reactor main body through a flange plate connecting structure; the reactor body has a catalytic reaction chamber and a temperature control chamber. The catalyst is placed in the catalytic reaction cavity. And the wall of the catalytic reaction cavity is provided with an air inlet and an air outlet, the air inlet is connected with the air supply unit through a gas pipeline, and the air outlet is connected with the product analysis unit through a gas pipeline. The optical window is positioned at the upper part of the catalytic reaction cavity, the optical window is pressed on the catalytic reaction cavity through the top cover and the flange structure of the reactor main body, and the joint of the optical window and the reactor main body is sealed through a sealing ring or a sealing gasket; the temperature control cavity surrounds the catalytic reaction cavity. The catalytic reaction cavity and the temperature control cavity are provided with a shared cavity wall, and heat exchange is carried out through the shared cavity wall. The temperature control cavity is internally provided with a liquid heat-conducting medium. The bottom cover is positioned below the reactor main body and forms a closed cavity with the temperature control cavity, and sealing can be realized through a sealing ring or a sealing gasket. And a liquid inlet and a liquid outlet are arranged on the cavity wall of the temperature control cavity, the liquid outlet is higher than the liquid inlet, and the liquid inlet and the liquid outlet are connected with the temperature control unit through liquid pipelines. The reactor is made of a non-magnetic conductive material.
The magnetic field of the magnetic field control unit is generated by an electromagnet. And the catalytic reaction cavity of the reactor is positioned in a stable and constant magnetic field generated by the magnetic field control unit.
The illumination control unit is composed of a light source and a light guide component. The light generated by the light source is guided by the light guide component and is emitted into the catalytic reaction cavity of the reactor through the optical window of the reactor. The light guide member includes an optical fiber or a light guide tube.
The temperature control unit regulates and controls the temperature of the liquid heat-conducting medium, the liquid heat-conducting medium is conveyed into the temperature control cavity of the reactor through the liquid inlet, the temperature regulation and control of the catalytic reaction cavity of the reactor are realized by utilizing the heat conduction capability of the shared cavity wall of the catalytic reaction cavity and the temperature control cavity, and the liquid heat-conducting medium in the temperature control cavity of the reactor can flow back to the temperature control unit through the liquid outlet, so that the circulating flow of the liquid heat-conducting medium is realized. The temperature control mode avoids the generation of a parasitic magnetic field of the traditional electric heating mode and is beneficial to the independent adjustment of the magnetic field and the heat energy.
The gas supply unit is used for introducing reaction gas into the catalytic reaction cavity and has the function of adjusting gas composition, temperature, pressure and flow.
The non-magnetic material is one or more of stainless steel, aluminum alloy, titanium alloy, quartz glass or Teflon.
Optionally, the outside of the reactor is coated with an insulating layer.
Optionally, a thermocouple is arranged inside the catalytic reaction chamber.
Optionally, the optical window is a quartz window or a sapphire window.
Optionally, the sealing ring is made of nitrile rubber, fluororubber or silicone rubber.
Optionally, the gasket is a graphite-containing gasket.
Optionally, the light source of the illumination control unit is a xenon lamp.
The temperature control unit includes a thermostatic bath and a pump. The thermostatic bath is used for regulating and controlling the temperature of the liquid heat-conducting medium, and the pump is used for conveying the liquid heat-conducting medium into the temperature control cavity of the reactor from the thermostatic bath. The thermostatic bath is connected with the pump through a liquid pipeline. The pump is connected with a liquid inlet of a temperature control cavity of the reactor through a liquid pipeline.
The liquid heat-conducting medium is water or heat-conducting oil.
Optionally, the gas supply unit includes a gas cylinder, a mass flow meter, a pressure sensor, and a gas preheating and mixing container.
Optionally, the product analysis unit is a gas chromatograph.
After a catalyst to be detected is distributed in a catalytic reaction cavity of a reactor and reaction gas is introduced, when the device works, the target temperature in a constant temperature tank is set, a liquid heat-conducting medium is heated to the target temperature, a pump is started, the liquid heat-conducting medium is pumped into a temperature control cavity of the reactor through a liquid inlet, the liquid heat-conducting medium in the temperature control cavity flows back to the constant temperature tank through a liquid outlet, the liquid heat-conducting medium flows circularly according to the liquid heat-conducting medium, and the continuous heat energy supply for the gas-solid catalytic reaction in the catalytic reaction cavity is realized by utilizing the heat-conducting capacity of the shared cavity wall of the temperature control cavity and the catalytic reaction cavity. Because the conduction heating mode has no parasitic magnetic field, the heat energy and the magnetic energy can be adjusted independently.
The light emitted by the light source of the illumination control unit irradiates the catalyst in the catalytic reaction cavity through the light guide component and the optical window of the reactor.
The magnetic field control unit controls the current flowing through the electromagnet, so that magnetic fields with different sizes can be applied to the gas-solid catalytic reaction in the catalytic reaction cavity. Because the light source of the illumination control unit is outside the magnetic field, the luminous performance of the light source cannot be influenced by the change of the magnetic field, so that the light energy and the magnetic energy can be adjusted independently.
The gas-solid catalytic reaction is carried out under the conditions of set magnetic field, illumination and temperature, and reaction products flow into a product analysis unit through a gas pipeline through a gas outlet of a catalytic reaction cavity of the reactor to carry out component and yield analysis on the catalytic reaction products.
The magneto-optical thermal synergistic catalyst evaluation device and the use method have the following beneficial effects:
1. the catalyst evaluation device not only has the basic functions of regulating and controlling reaction temperature, pressure, airspeed and the like of the conventional fixed bed catalyst evaluation device, but also can apply a magnetic field and illumination to a catalyst bed layer in a continuous flow fixed bed reactor, and provides a tool for researching magneto-optic heat synergistic gas-solid heterogeneous catalytic reaction.
2. The invention adopts a liquid medium circulation temperature control mode instead of a common electric heating furnace temperature control mode in the traditional catalyst evaluation device, and mainly considers that the electric heating furnace can form a magnetic field under the power-on state and can cause the change of the magnetic field environment of a catalyst bed layer; in addition, in consideration of the obvious influence of the magnetic field on the luminous performance of the light source, the invention adopts the illumination mode guided by the light guide component, so that the luminous light source can be far away from the magnetic field, and the change of illumination conditions caused by the magnetic field is avoided.
3. The reactor of the catalyst device has the characteristics of small volume and simple structure, is beneficial to reducing the catalyst consumption and the heat balance time in the catalyst evaluation process, has the advantages of facilitating the filling and unloading of the catalyst and the like, and is beneficial to improving the efficiency of catalyst evaluation.
Drawings
FIG. 1 is a schematic diagram of the operation of the catalyst evaluation apparatus of the present invention;
FIG. 2 is a schematic cross-sectional view of a reactor of the present invention;
FIG. 3 is a system configuration diagram of the catalyst evaluating apparatus of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description.
As shown in fig. 3, the present invention includes a reactor 21, a magnetic field control unit, a light irradiation control unit, a temperature control unit, a gas supply unit, and a product analysis unit. The reactor 21 is the place of realizing catalytic reaction, magnetic field control unit is arranged in providing steady magnetic field for the catalytic reaction in the reactor, illumination control unit is arranged in providing illumination for the catalytic reaction in the reactor, temperature control unit is used for providing heat energy for catalytic reaction, the air feed unit is used for providing reaction gas for catalytic reaction, the product analysis unit is used for the composition and the output analysis of catalytic reaction product. Wherein the gas supply unit, the reactor 21 and the product analysis unit are communicated in sequence through gas pipelines. The temperature control unit adopts a liquid heat conduction mode to control the temperature and is communicated with the reactor 21 through a liquid pipeline. The reactor 21 has a catalytic reaction chamber in which a catalyst is placed, the catalytic reaction chamber being located in a steady magnetic field generated by a magnetic field control unit. The illumination control unit consists of a light source and a light guide component, wherein the light source is positioned outside the stable and constant magnetic field generated by the magnetic field generating unit. The reactor 21 has an optical window. The light provided by the illumination control unit is illuminated in the catalytic reaction chamber 5 of the reactor through the optical window of the reactor.
As shown in fig. 2, the reactor 21 is composed of a reactor body 1, an optical window 2, a top cover 3 and a bottom cover 4. The reactor main body 1 is provided with a catalytic reaction cavity 5 and a temperature control cavity 6, a catalyst is placed in the catalytic reaction cavity 5, the temperature control cavity 6 is arranged around the catalytic reaction cavity 5, and the wall of the cavity shared by the two is used for heat conduction. The bottom cover 4 is positioned below the reactor main body 1 and forms a closed cavity with the temperature control cavity 6. The top cover 3 is positioned above the reactor main body 1, and the reactor main body 1 is connected with the top cover 3 through a flange structure, so that the top cover 3 is sealed with the catalytic reaction cavity 5.
The optical window 2 is positioned at the upper part of the catalytic reaction cavity 5, and the joint of the optical window 2 and the reactor main body 1 is sealed by a fluororubber sealing ring 7, so that the reactor can be ensured to have certain pressure resistance. The side wall of the catalytic reaction cavity 5 is provided with an air inlet 8, the air inlet 8 is connected with an air supply unit, the bottom of the catalytic reaction cavity 5 is provided with an air outlet 9, and the air outlet 9 is connected with a product analysis unit. The upper side wall of the catalytic reaction cavity 5 is provided with a through hole 10, and the through hole 10 is used for distributing a thermocouple to measure the reaction temperature. A fluorine rubber sealing ring 7 is arranged between the temperature control cavity 6 and the bottom cover 4, and a sealing cavity is formed between the temperature control cavity and the bottom cover after the temperature control cavity and the bottom cover are fastened by screws. The lower side wall of the temperature control cavity 6 is provided with a liquid inlet 11, and the upper side wall of the temperature control cavity 6 is provided with a liquid outlet 12. The liquid inlet 11 and the liquid outlet 12 are communicated with the temperature control unit through liquid pipelines to form a liquid circulation loop. The reactor main body 1, the top cover 3 and the bottom cover 4 are made of stainless steel material, and the optical window 2 is made of sapphire material.
As shown in FIG. 3, the gas supply unit consists of three gas supply branches for supplying CO respectively2、H2And Ar. Each branch is formed by sequentially connecting an air bottle 13, a pressure reducing valve 14, a needle valve 15, a gas flowmeter 16, a check valve 17 and a stop valve 18. The three branches send the gas into a mixing tank 20 through a four-way joint 19 for mixing and preheating, and the mixed and preheated gas is sent into a catalytic reaction cavity 5 of a reactor 21 through a gas path for reaction. The gas lines before and after the reactor 21 are provided with pressure gauges 22. The gas product generated by the reaction is sent to the gas chromatograph 33 through the condenser 23 and the back pressure valve 24 for detection.
The magnetic field control unit consists of an electromagnet 25 with an adjustable air gap and an excitation power supply 26. The electromagnet 25 is connected with an excitation power supply 26 through a lead, and a stable and constant magnetic field is formed in an air gap between two poles of the electromagnet 25 by using the electromagnetic induction principle. The catalytic reaction chamber 5 of the reactor 21 is placed in the magnetic field space between the two pole heads of the electromagnet 25.
The catalyst is placed in the catalytic reaction chamber 5 of the reactor 21.
The illumination control unit is composed of a xenon lamp light source 27, an optical fiber 28 and a lens 29. The light emitted from the xenon lamp light source 27 is guided and transmitted by the optical fiber 28, and is emitted through the lens 29. Thus, the xenon lamp light source 27 can be placed far away from the magnetic field space, and the influence of the magnetic field change on the light emitting performance of the light source is avoided. The light emitted from the light source is guided by the optical fiber 28 to irradiate the catalyst in the catalytic reaction chamber 5 through the optical window 2 of the reactor 21.
The temperature control unit consists of a constant temperature oil tank 30 and a high temperature pump 31 which are connected by a liquid pipeline 32. The high temperature pump 31 continuously conveys the heat conduction oil in the constant temperature oil groove 30 from the liquid inlet 11 into the temperature control cavity 6 of the reactor 21 through the liquid pipeline 32, and the heat conduction oil in the temperature control cavity 6 flows back to the constant temperature oil groove 30 from the liquid outlet 12 through the liquid pipeline 32, so that the temperature control of the catalyst bed layer is realized through the circulation flow of the heat conduction oil. The liquid conduction heating mode avoids the generation of a parasitic magnetic field of the traditional electric heating mode, and is beneficial to the independent adjustment of the magnetic field and the heat energy
The reaction product is detected by a gas chromatograph 33, the gas chromatograph 33 is connected with the gas outlet 9 of the reactor 21 through a gas pipeline, and the relative content of each component of the reaction product is analyzed on line by using a TCD and FID dual detector.
As shown in fig. 1, the operation principle of the catalyst evaluation apparatus of the present invention is:
the gas supply unit injects CO as reaction raw material gas into the reactor 212、H2And inert gases Ar, He or N2In the first step, the magnetic energy generated by the magnetic field control unit, the light energy generated by the illumination control unit and the heat energy generated by the temperature control unit cooperatively drive the gas-solid catalytic reaction in the reactor 21, and the reaction product under the set magnetic, light and heat conditions is sampled and analyzed by the product analysis unit, so that the catalytic performance of the catalyst under the cooperative drive of the magneto-optic heat is obtained.
When the invention works:
the bottom of the catalytic reaction cavity of the reactor is provided with a quartz cotton layer, a quartz sand layer is arranged on the quartz cotton layer, and the catalyst is arranged on the quartz sand layer. An optical window is placed at the upper part of the catalytic reaction cavity and is tightly pressed and sealed through a top cover.
The mass flow meter 16 is used for respectively regulating the flow of each reaction gas to realize the control of the composition and the flow of the reaction gases; the pressure of the reaction gas is regulated by the pressure reducing valve 14, the needle valve 15 and the back pressure valve 24; the temperature of the reaction gas before entering the reactor is regulated by the mixing tank 20;
setting a target temperature of the constant-temperature oil tank 30, heating heat conduction oil to the target temperature, starting the high-temperature pump 31, pumping the heat conduction oil into the temperature control cavity 6 of the reactor 21 through the liquid inlet 11, returning the heat conduction oil in the temperature control cavity 6 to the constant-temperature tank 30 through the liquid outlet 12, circulating the heat conduction oil according to the heat conduction oil, and continuously providing heat energy for the gas-solid catalytic reaction in the catalytic reaction cavity 5 by utilizing the heat conduction capability of the shared cavity wall of the temperature control cavity 6 and the catalytic reaction cavity 5;
the xenon lamp light source 27 is turned on and adjusted, the output light intensity can be adjusted by changing the current, the output wavelength and the like can be adjusted by adding an optical filter, and the output light of the xenon lamp light source irradiates on the catalyst in the catalytic reaction cavity 5 through the optical fiber 28, the lens 29 and the optical window 2 of the reactor 21 in sequence;
turning on an excitation power supply 26, controlling the current flowing through the electromagnet 25, and realizing that magnetic fields with different sizes are applied to the gas-solid catalytic reaction in the catalytic reaction cavity 5;
the gas-solid catalytic reaction is carried out under the conditions of set magnetic field, illumination and temperature, the reaction product flows into a gas chromatograph 33 through a gas pipeline, a condenser 23 and a back pressure valve 24 through a gas outlet 9 of a catalytic reaction cavity 5 of the reactor, and the components and the yield of the reaction product are analyzed on line by using a TCD (thermal conductivity detector) and an FID (field-induced fluorescence Detector).
Claims (7)
1. The magneto-optical thermal synergistic catalyst evaluation device is characterized by comprising a reactor (21), a magnetic field control unit, an illumination control unit, a temperature control unit, an air supply unit and a product analysis unit; the reactor (21) is a place for realizing catalytic reaction, the magnetic field control unit provides a steady magnetic field for the catalytic reaction in the reactor, the illumination control unit provides illumination for the catalytic reaction in the reactor, the temperature control unit is used for providing heat energy for the catalytic reaction, the gas supply unit is used for providing reaction gas for the catalytic reaction, and the product analysis unit is used for analyzing the components and the yield of a catalytic reaction product; the gas supply unit, the reactor (21) and the product analysis unit are communicated in sequence through a gas pipeline; the temperature control unit controls the temperature by adopting a liquid heat conduction mode and is communicated with the reactor (21) through a liquid pipeline; the reactor is provided with a catalytic reaction cavity for placing a catalyst, and the catalytic reaction cavity is positioned in a stable and constant magnetic field generated by the magnetic field control unit; the illumination control unit consists of a light source and a light guide component, wherein the light source is positioned outside the stable and constant magnetic field generated by the magnetic field generating unit; the reactor is provided with an optical window (2), and light emitted by the illumination control unit is irradiated in a catalytic reaction cavity (5) of the reactor through the optical window of the reactor;
the reactor (21) consists of a reactor main body (1), an optical window (2), a top cover (3) and a bottom cover (4); the reactor main body (1) is provided with a catalytic reaction cavity (5) and a temperature control cavity (6), a catalyst is placed in the catalytic reaction cavity (5), the temperature control cavity (6) is arranged around the catalytic reaction cavity (5), the catalytic reaction cavity and the temperature control cavity have a shared cavity wall, and heat exchange is carried out through the shared cavity wall; the bottom cover (4) is positioned below the reactor main body (1) and forms a closed cavity with the temperature control cavity (6); the top cover (3) is positioned above the reactor main body (1), and the reactor main body (1) is connected with the top cover (3) through a flange structure; the reactor main body (1), the top cover (3) and the bottom cover (4) are made of stainless steel materials; the optical window (2) is made of quartz or sapphire materials;
the optical window (2) is positioned at the upper part of the catalytic reaction cavity (5), the optical window (2) is pressed on the catalytic reaction cavity (5) through a flange plate connecting structure of the top cover (3) and the reactor main body (1), and the joint of the optical window (2) and the reactor main body (1) is sealed through a sealing ring or a sealing gasket (7); the side wall of the catalytic reaction cavity (5) is provided with an air inlet (8), the air inlet (8) is connected with an air supply unit, the bottom of the catalytic reaction cavity (5) is provided with an air outlet (9), and the air outlet (9) is connected with a product analysis unit; the upper side wall of the catalytic reaction cavity (5) is provided with a through hole (10), the through hole (10) is used for arranging a thermocouple to measure the reaction temperature, a quartz cotton layer is arranged at the bottom in the catalytic reaction cavity (5), a quartz sand layer is arranged on the quartz cotton layer, and a catalyst layer is arranged on the quartz sand layer; a sealing ring or a sealing gasket (7) is arranged between the temperature control cavity (6) and the bottom cover (4); a liquid inlet (11) is formed in the lower side wall of the temperature control cavity (6), and a liquid outlet (12) is formed in the upper side wall of the temperature control cavity (6); the liquid inlet (11) and the liquid outlet (12) are communicated with the temperature control unit through liquid pipelines to form a liquid circulation loop;
the evaluation device is used for solving the problem that the existing fixed bed catalyst evaluation device cannot apply three energies, namely magnetism, light and heat to the catalyst at the same time, so that the three energies can be adjusted independently.
2. A magneto-optical thermal synergistic catalyst evaluation device as claimed in claim 1, wherein said light control unit is comprised of a light source and a light guide; the light generated by the light source is guided by the light guide component and irradiates the catalyst in the catalytic reaction cavity (5) of the reactor (21) through the optical window (2) of the reactor (21).
3. A magneto-optical thermal synergistic catalyst evaluation device according to claim 1, wherein the temperature control unit regulates and controls the temperature of a liquid heat-conducting medium, and conveys the liquid heat-conducting medium into a temperature control cavity (6) of the reactor through the liquid inlet (11), and the temperature regulation and control of the catalytic reaction cavity (5) of the reactor are realized by utilizing the heat conduction capability of a cavity wall shared by the catalytic reaction cavity (5) and the temperature control cavity (6); and a liquid heat-conducting medium in a temperature control cavity (6) of the reactor flows back to the temperature control unit through a liquid outlet (12), so that the circular flow of the liquid heat-conducting medium is realized.
4. A magneto-optical thermal synergistic catalyst evaluation device according to claim 1, wherein the reactor (21) is made of a non-magnetic material, and the non-magnetic material is one or more of stainless steel, aluminum alloy, titanium alloy, quartz glass or teflon.
5. A magneto-optical thermal synergistic catalyst evaluation device according to claim 1, wherein the outside of the reactor (21) is coated with an insulating layer.
6. A magneto-optical thermally synergistic catalyst evaluation device as claimed in claim 1, wherein a thermocouple is provided inside said catalytic reaction chamber.
7. A magneto-optical thermally synergistic catalyst evaluation device according to claim 1, wherein the temperature control unit comprises a thermostatic bath (30) and a pump (31), the thermostatic bath (30) and an inlet of the pump (31) being connected by a liquid line; an outlet of the pump (31) is connected with a liquid inlet (11) of the temperature control cavity (6) of the reactor (21) through a liquid pipeline; the liquid outlet (12) of the temperature control cavity (6) is connected with a constant temperature groove (30) through a liquid pipeline.
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| CN109507362A (en) * | 2018-11-14 | 2019-03-22 | 西安交通大学 | Experimental provision and test mode for the evaluation of structured light thermocatalytic material property |
| CN112782075B (en) * | 2020-12-29 | 2022-02-25 | 清华大学 | Photo-thermal thermoelectric catalyst signal detection system and method and catalytic reaction equipment |
| CN112833569B (en) * | 2021-01-08 | 2022-03-22 | 西安交通大学 | Integrated light-gathering solar photo-thermal synergetic catalytic reaction device |
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