Heating and humidifying device, electrolytic carbon-oxygen compound reduction system applying same and reduction method of electrolytic carbon-oxygen compound reduction system

Abstract

The invention relates to a heating and humidifying device, an electrolytic carbon-oxygen compound reduction system using a module and a reduction method thereof, and the heating and humidifying device is used for heating and humidifying carbon-oxygen compound gas and comprises a liquid storage barrel provided with a gas inlet, a gas outlet and a liquid injection port; the liquid level meter unit is arranged in the liquid storage barrel and is used for sensing the liquid height; the temperature sensing unit is arranged at the gas outlet and is used for sensing the temperature of the humidified and heated carbon oxide gas; the gas leading-in unit is arranged in the liquid storage barrel and is mutually connected with the gas inlet in an inserting manner through a connecting pipe; the heating unit is arranged close to or located at the bottom of the liquid storage barrel and used for heating the liquid; wherein the gas inlet is used for leading the carbon-oxygen compound gas into the heating and humidifying device, the carbon-oxygen compound gas is led into the heated liquid through the gas leading-in unit so as to be uniformly heated and humidified, and then the carbon-oxygen compound gas is discharged through the gas outlet. Therefore, the heating and humidifying device has better heating and humidifying efficiency on the carbon-oxygen compound gas.

Description

Technical Field

[0001] The present invention relates to the technical field of electrolytic generation of hydrocarbons, and in particular to a heating and humidifying device for electrolytic generation of hydrocarbons by stably controlling gas humidification and heating, an electrolytic carbon oxide reduction system using the device, and a reduction method thereof. Background Art

[0002] Currently, about 80% of the world's energy demand is met by the combustion of fossil fuels. The combustion process causes the world to emit about 34 billion tons of carbon dioxide into the atmosphere each year, most of which is directly emitted into the atmosphere. Carbon dioxide is a greenhouse gas that has adverse effects on the atmosphere and climate, thereby causing global warming and ocean acidification.

[0003] In fact, electricity generated by renewable energy is used to perform water electrolysis, and hydrogen (H2) is produced from water, or carbon dioxide (CO2) is electrochemically reduced to convert it into chemical substances (chemical energy) such as hydrocarbons such as carbon monoxide (CO), formic acid (HCOOH), methanol (CH3OH), methane (CH4), acetic acid (CH3COOH), ethanol (C2H5OH), ethane (C2H6), and ethylene (C2H4).

[0004] As for the reuse of carbon dioxide, the industry is currently focusing on converting carbon dioxide into other energy sources. Taking the reduction of carbon dioxide to form carbon monoxide or other hydrocarbons as an example, carbon dioxide is mostly reduced by electrocatalysis. However, this method faces problems such as carbon dioxide diffusion capacity, conversion rate, product separation and purification, and the disadvantage of complicated steps. Summary of the invention

[0005] The present invention provides a heating and humidifying device, an electrolytic carbon oxide reduction system using the device and a reduction method thereof, the purpose of which is to use the heating and humidifying device with a new structure to carry out electrolytic reaction.

[0006] A heating and humidifying device of the present invention is used to heat and humidify a carbon oxide gas, which includes: a liquid storage barrel, which has a bottom and an upper cover, the liquid storage barrel is used to contain a liquid, and the upper cover is provided with a plurality of protruding interfaces, the plurality of interfaces include a gas inlet, a gas outlet and a liquid injection port; a liquid level meter unit, which is arranged in the liquid storage barrel, and is used to sense the height of the liquid; a temperature sensing unit, which is arranged in the gas outlet, and is used to sense the temperature of the carbon oxide gas after humidification and heating; a gas introduction unit, which is arranged in the liquid storage barrel and is plugged into the gas inlet through a connecting pipe; and a heating unit, which is arranged near or located at the bottom of the liquid storage barrel, and is used to heat the liquid; wherein the gas inlet is used to introduce the carbon oxide gas into the interior of the heating and humidifying device, and the carbon oxide gas is introduced into the heated liquid through the gas introduction unit to evenly heat and humidify, and then discharged through the gas outlet.

[0007] In one embodiment of the present invention, the liquid is ultrapure water.

[0008] In one embodiment of the present invention, the gas inlet is connected to an air intake pipeline to supply the pressurized carbon oxide gas.

[0009] In one embodiment of the present invention, the above-mentioned liquid level meter unit is but not limited to a capacitive liquid level meter, a float liquid level meter, a flap liquid level meter, or a reflective liquid level meter. When the height of the liquid level in the liquid storage barrel is lower than a lower limit value, the liquid is injected into the liquid storage barrel through the filling port.

[0010] In one embodiment of the present invention, the temperature sensing unit is one of an infrared temperature sensor, a sonic temperature sensor, an ultrasonic temperature sensor, a magnetic temperature sensor, a millimeter wave temperature sensor, a thermocouple, or a resistance temperature sensor.

[0011] In one embodiment of the present invention, the gas introduction unit is one of a porous ventilation pipe, a perforated ventilation pipe, a nozzle ventilation pipe, an air bubble stone, a ventilator, or a diffuser.

[0012] In one embodiment of the present invention, the heating unit is a DC heating element.

[0013] The present invention also includes an electrolytic carbon oxide reduction system, which uses the above-mentioned heating and humidifying device and further includes: a carbon oxide storage tank for storing a carbon oxide gas; a mass flow control unit, which is fluidically connected to the carbon oxide storage tank and used as a power for transporting the carbon oxide gas and obtaining a mass flow rate; a reactor stack component for electrolyzing the carbon oxide gas and an electrolyte to produce a cathode product and an anode product respectively; a first fluid multi-way valve having a first interface connected to the heating and humidifying device, a second interface connected to a waste liquid discharge pipeline, and a third interface connected to the reactor stack component; an electrolyte storage tank for storing the electrolyte, wherein the electrolyte includes 1A group ions, OH - 、CO3 2- , H2O, or PO4 3- a compound, and obtain the anode product; an electrolyte circulation cooling module, having a first temperature sensing unit, a second temperature sensing unit, and a cooling unit, the electrolyte circulation cooling module fluid connects the reactor stack assembly and the electrolyte storage tank, and is used to cool the electrolyte after the reaction of the reactor stack assembly, and then inject it into the electrolyte storage tank, wherein the first temperature sensing unit and the second temperature sensing unit are respectively used to sense the temperature of the electrolyte before entering the reactor stack assembly and after flowing out of the reactor stack assembly, and the temperature of the electrolyte is controlled by the cooling unit; a second fluid multi-way valve, having a fourth interface and connected to the reactor stack assembly, a fifth interface, used to guide the cathode product generated after the reaction of the reactor stack assembly, and a sixth interface; a liquid storage tank, used to store the liquid, and inject it into the heating and humidifying device through the injection port, and wash the reactor The stack assembly uses; a third fluid multi-way valve, having a seventh interface and connected to the liquid storage tank for obtaining the liquid, an eighth interface and docking with the sixth interface for importing and exporting the liquid, and a ninth interface and connected to the waste liquid discharge pipeline for discharging the waste liquid after washing; a condensation unit, connected to the fifth interface of the second fluid multi-way valve, for cooling the cathode product and forming a liquid product and a gaseous product respectively; a product storage unit, coupled to the condensation unit, for collecting the liquid product and the gaseous product respectively; and a control unit, electrically connecting the mass flow control unit, the first fluid multi-way valve, the second fluid multi-way valve, the third fluid multi-way valve, the electrolyte circulation cooling module, and the condensation unit, for controlling the carbon oxide gas and the electrolyte to flow into the reactor stack assembly and produce the cathode product and the anode product.

[0014] In one embodiment of the present invention, a heating tube unit is further included, which is respectively connected to the heating and humidifying device and the first interface of the first fluid multi-way valve to maintain the temperature of the carbon oxide gas sent into the reactor stack assembly.

[0015] In an embodiment of the present invention, the cooling unit is an air-cooling cooling unit, a water-cooling cooling unit, or a cooling chip, or a combination thereof.

[0016] In one embodiment of the present invention, the cooling unit further includes a heat dissipation pipeline, which is made of, but not limited to, a copper tube, a stainless steel tube, a Teflon tube, a titanium tube, and an aluminum tube.

[0017] In one embodiment of the present invention, the heat dissipation pipeline further includes a heat dissipation fin wound around the heat dissipation pipeline to increase the pipe diameter area for heat dissipation.

[0018] In one embodiment of the present invention, the condensing unit is an air-cooling cooling unit, a water-cooling cooling unit, or a cooling chip, or a combination thereof.

[0019] In one embodiment of the present invention, a cooling unit is further included to separate liquid from gas of the cathode product after being cooled by the condensing unit.

[0020] The present invention further includes a reduction method suitable for the above-mentioned electrolytic carbon oxide reduction system, comprising the following steps: allowing the carbon oxide gas to flow through the mass flow control unit through the carbon oxide storage tank and obtain the mass flow rate; allowing the carbon oxide gas to flow into the heating and humidifying device from the first interface of the first fluid multi-way valve through the control unit according to the mass flow rate; allowing the electrolyte to flow into the reactor stack assembly through the electrolyte storage tank; using the reactor stack assembly to electrolyze the carbon oxide gas and the electrolyte to respectively produce the cathode product and the anode product; then introducing the cathode product into the condensation unit through the fourth interface of the second fluid multi-way valve; after the cathode product is condensed, the liquid product and the gaseous product are respectively collected in the product storage unit.

[0021] In one embodiment of the present invention, the above-mentioned reduction method also includes the following steps: when the reactor stack assembly needs to be cleaned, the liquid is connected through the seventh interface and the eighth interface of the third fluid multi-way valve through the liquid storage tank, and after the sixth interface and the fourth interface of the second fluid multi-way valve are connected, the liquid flows into the reactor stack assembly from the fourth interface to clean the internal pipeline of the reactor stack assembly; and then the washed liquid is discharged to the waste liquid discharge pipeline by connecting the second interface and the third interface of the first fluid multi-way valve.

[0022] In one embodiment of the present invention, the above-mentioned reduction method also includes the following steps: after the washed liquid is discharged through the second interface, the first interface is connected to the third interface, and the residual moisture inside the reactor stack assembly is blown out to the waste liquid discharge pipeline through the fourth interface and the sixth interface of the second fluid multi-way valve and the eighth interface and the ninth interface of the third fluid multi-way valve through the carbon oxide gas.

[0023] In one embodiment of the present invention, the above-mentioned reduction method further includes the following steps: cooling the electrolyte through the electrolyte circulation cooling module to reduce the temperature of the electrolyte flowing into the reactor stack assembly, so that the electrolyte cools the reactor stack assembly.

[0024] The heating and humidifying device, the electrolytic carbon oxide reduction system using the device and the reduction method thereof in the present invention are effective in that the humidity of the carbon oxide gas will reach saturation after entering the heating and humidifying device, and the heat is directly provided to the liquid inside the device for heating, so it has better efficiency and can adjust the temperature of the internal liquid in real time to raise the temperature to the same as the heating and humidifying device, effectively improving the electrolysis efficiency, reducing the energy consumption required for electrolyzing carbon oxides, and electrolyzing and reducing carbon oxides with better reaction efficiency, thereby achieving the effect of saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the appearance of the heating and humidifying device in the present invention; Figure 2 is a schematic block diagram of a carbon oxide electrolytic reduction system in the present invention; Figure 3 is a schematic diagram of a cooling unit of the carbon oxide electrolytic reduction system of the present invention; Figure 4 It is a flow chart of the steps of the reduction method applicable to the electrolytic carbon oxide reduction system in the present invention.

[0026] Explanation of symbols in the accompanying drawings: 1. Heating and humidifying device; 101 liquid storage tank; 1011 Gas import; 1012 gas outlet; 1013 liquid injection port; 102 liquid level gauge unit; 103 temperature sensing unit; 104 gas introduction unit; 105 heating unit; 2 Carbon oxide storage tank; 3Mass flow control unit; 4 Reactor stack components; 5. first fluid multi-way valve; 6. Electrolyte storage tank; 71 a first temperature sensing unit; 72 second temperature sensing unit; 73 cooling unit; 8 a second fluid multi-way valve; 9Liquid storage tank; 10 a third fluid multi-way valve; 11. Condensation unit; 12 product storage unit; 13 control unit; A. Waste liquid discharge pipeline; Steps S410~S460. DETAILED DESCRIPTION

[0027] In order to make the above features and advantages of the present invention more obvious and easy to understand, the following embodiments are specifically cited, and in conjunction with the attached drawings. In addition to these detailed descriptions, the present invention can also be widely implemented in other embodiments. Any easy replacement, modification, and equivalent changes of the embodiments are included in the scope of the present invention and are subject to the scope of the patent application. In the description of the specification, many specific details are provided to enable readers to have a more complete understanding of the present invention; however, the present invention may still be implemented on the premise of omitting some or all of the specific details. In addition, well-known steps or components are not described in detail to avoid unnecessary limitations on the present invention. The same or similar components in the drawings will be represented by the same or similar symbols. It is particularly noted that the drawings are for illustration only and do not represent the actual size or quantity of the components. Some details may not be fully drawn. In order to simplify the drawings, detailed descriptions are given as follows.

[0028] Please refer to Figure 1 , Figure 11 is a schematic diagram of the appearance of the heating and humidifying device in the present invention. A heating and humidifying device 1 in the present invention is used to heat and humidify a carbon oxide gas, and comprises: a liquid storage barrel 101, which has a bottom and an upper cover for accommodating a liquid, and the upper cover is provided with a plurality of protruding interfaces, the plurality of interfaces including a gas inlet 1011, a gas outlet 1012 and a liquid injection port 1013; a liquid level meter unit 102, which is arranged on the liquid storage barrel 101, for sensing the height of the liquid; a temperature sensor unit 103, which is arranged on the gas outlet 1012, for sensing the carbon oxide gas after humidification and heating. a gas introduction unit 104, which is arranged inside the liquid storage barrel 101 and is plugged into the gas inlet 1011 through a connecting pipe; and a heating unit 105, which is arranged close to or located at the bottom of the liquid storage barrel 101, for heating the liquid; wherein the gas inlet 1011 is used to introduce the carbon oxide gas into the interior of the heating and humidifying device 1, and the carbon oxide gas is introduced into the heated liquid through the gas introduction unit 104 to uniformly heat and humidify, and then discharged through the gas outlet 1012.

[0029] In this embodiment, the liquid is ultrapure water.

[0030] Preferably, the impedance value of the ultrapure water is less than 18.2 MΩ•cm.

[0031] In this embodiment, the gas inlet 1011 is connected to an air intake pipeline to supply the pressurized carbon oxide gas.

[0032] In this embodiment, the liquid level meter unit 102 is but not limited to a capacitive liquid level meter, a float liquid level meter, a flap liquid level meter, or a reflective liquid level meter. When the liquid level in the liquid storage barrel 101 is lower than a lower limit value, the liquid is injected into the liquid storage barrel 101 through the injection port 1013.

[0033] Preferably, the liquid level meter unit 102 is a float type liquid level meter.

[0034] In this embodiment, the temperature sensing unit 103 is one of an infrared temperature sensor, a sonic temperature sensor, an ultrasonic temperature sensor, a magnetic temperature sensor, a millimeter wave temperature sensor, a thermocouple, or a resistance temperature sensor.

[0035] Preferably, the temperature sensing unit 103 is a thermocouple.

[0036] In this embodiment, the gas introduction unit 104 is one of a porous ventilation pipe, a perforated ventilation pipe, a nozzle ventilation pipe, a bubble stone, a ventilator, or a diffuser.

[0037] Preferably, the gas introduction unit 104 is a bubble stone having a plurality of fine pores.

[0038] In this embodiment, the heating unit 105 is a DC heating element that receives the electric power for heating.

[0039] Wherein, the direct current heating element is an electric spoon or an electric heating rod.

[0040] In this embodiment, the temperature of the carbon oxide gas discharged from the gas outlet 1012 is in the range of 30-100° C. by the heating unit 105 .

[0041] Preferably, the temperature of the carbon oxide gas is in the range of 50-80°C.

[0042] Optimally, the temperature of the carbon oxide gas is in the range of 58-67°C.

[0043] In this embodiment, the temperature of the carbon oxide gas is obtained by the temperature sensing unit 103 , and when the temperature is too low, the heating unit 105 heats the liquid.

[0044] Please refer to Figure 2 , Figure 2 1 is a block diagram of a carbon oxide electrolytic reduction system in the present invention, wherein the carbon oxide electrolytic reduction system in the present invention comprises the aforementioned heating and humidifying device 1; and a carbon oxide storage tank 2 for storing a carbon oxide gas; a mass flow control unit 3, fluidly connected to the carbon oxide storage tank 2, used as a power for conveying the carbon oxide gas and obtaining a mass flow rate; a reactor stack assembly 4, used for electrolyzing the carbon oxide gas and an electrolyte, and producing a cathode product and an anode product respectively; a first fluid multi-way valve 5, having a first interface connected to the heating and humidifying device 1, a second interface connected to a waste liquid discharge pipeline A, and a third interface connected to the reactor stack assembly 4; an electrolyte storage tank 6 for storing the electrolyte, wherein the electrolyte comprises 1A group ions, OH - 、CO3 2- , H2O, or PO4 3-a compound, and obtain the anode product; an electrolyte circulation cooling module, having a first temperature sensing unit 71, a second temperature sensing unit 72 and a cooling unit 73, the electrolyte circulation cooling module fluid connects the reactor stack assembly 4 and the electrolyte storage tank 6, and is used to cool the electrolyte after the reaction of the reactor stack assembly 4, and then inject it into the electrolyte storage tank 6, wherein the first temperature sensing unit 71 and the second temperature sensing unit 72 are respectively used to sense the temperature of the electrolyte before entering the reactor stack assembly 4 and after flowing out of the reactor stack assembly 4, and the temperature of the electrolyte is controlled by the cooling unit 73; a second fluid multi-way valve 8, having a fourth interface and connected to the reactor stack assembly 4, a fifth interface, used to guide the cathode product generated after the reaction of the reactor stack assembly 4, and a sixth interface; a liquid storage tank 9, used to store the liquid, and inject it into the heating and humidifying device 1 through the injection port 1013, and wash the reaction It is used in the reactor stack component 4; a third fluid multi-way valve 10, having a seventh interface and connected to the liquid storage tank 9, for obtaining the liquid, an eighth interface and docking with the sixth interface, for importing and exporting the liquid, and a ninth interface and connected to the waste liquid discharge pipeline A, for discharging the washed waste liquid; a condensation unit 11, connected to the fifth interface of the second fluid multi-way valve 8, for cooling the cathode product and forming a liquid product and a gaseous product respectively; a product storage unit 12, coupled to the condensation unit 11, for collecting the liquid product and the gaseous product respectively; and a control unit 13, electrically connected to the mass flow control unit 3, the first fluid multi-way valve 5, the second fluid multi-way valve 8, the third fluid multi-way valve 10, the electrolyte circulation cooling module, and the condensation unit 11, for controlling the carbon oxide gas and the electrolyte to flow into the reactor stack component 4, and produce the cathode product and the anode product.

[0045] A heating and humidifying device in this embodiment is used to heat and humidify a carbon oxide gas, comprising: a liquid storage barrel 101, which has a bottom and an upper cover for accommodating a liquid, and the upper cover is provided with a plurality of protruding interfaces, the plurality of interfaces including a gas inlet 1011, a gas outlet 1012 and a liquid injection port 1013; a liquid level meter unit 102, which is arranged on the liquid storage barrel 101, for sensing the height of the liquid; a temperature sensor unit 103, which is arranged on the gas outlet 1012, for sensing the carbon oxide gas after humidification and heating. The temperature of the compound gas; a gas introduction unit 104, which is arranged inside the liquid storage barrel 101 and is plugged into the gas inlet 1011 through a connecting pipe; and a heating unit 105, which is arranged close to or located at the bottom of the liquid storage barrel 101, for heating the liquid; wherein the gas inlet 1011 is used to introduce the carbon oxide compound gas into the interior of the heating and humidifying device 1, and introduce the carbon oxide compound gas into the heated liquid through the gas introduction unit 104 to uniformly heat and humidify, and then discharge it through the gas outlet 1012.

[0046] In this embodiment, the liquid is ultrapure water.

[0047] Preferably, the impedance value of the ultrapure water is less than 18.2 MΩ•cm.

[0048] In this embodiment, the gas inlet 1011 is connected to an air intake pipeline to supply the pressurized carbon oxide gas.

[0049] In this embodiment, the liquid level meter unit 102 is but not limited to a capacitive liquid level meter, a float liquid level meter, a flap liquid level meter, or a reflective liquid level meter. When the liquid level in the liquid storage barrel 101 is lower than a lower limit value, the liquid is injected into the liquid storage barrel 101 through the injection port 1013.

[0050] Preferably, the liquid level meter unit 102 is a float type liquid level meter.

[0051] In this embodiment, the temperature sensing unit 103 is one of an infrared temperature sensor, a sonic temperature sensor, an ultrasonic temperature sensor, a magnetic temperature sensor, a millimeter wave temperature sensor, a thermocouple, or a resistance temperature sensor.

[0052] Preferably, the temperature sensing unit 103 is a thermocouple.

[0053] In this embodiment, the gas introduction unit 104 is one of a porous ventilation pipe, a perforated ventilation pipe, a nozzle ventilation pipe, a bubble stone, a ventilator, or a diffuser.

[0054] Preferably, the gas introduction unit 104 is a bubble stone having a plurality of fine pores.

[0055] In this embodiment, the heating unit 105 is a DC heating element that receives the electric power for heating.

[0056] Wherein, the direct current heating element is an electric spoon or an electric heating rod.

[0057] In this embodiment, the temperature of the carbon oxide gas discharged from the gas outlet 1012 is in the range of 30-100° C. by the heating unit 105 .

[0058] Preferably, the temperature of the carbon oxide gas is in the range of 50-80°C.

[0059] Optimally, the temperature of the carbon oxide gas is in the range of 58-67°C.

[0060] In this embodiment, the temperature of the carbon oxide gas is obtained by the temperature sensing unit 103 , and when the temperature is too low, the heating unit 105 heats the liquid.

[0061] In this embodiment, a heating tube unit is further included, which is respectively connected to the heating and humidifying device 1 and the first interface of the first fluid multi-way valve 5 to maintain the temperature of the carbon oxide gas sent into the reactor stack assembly 4.

[0062] In this embodiment, the cooling unit 73 is an air-cooling cooling unit, a water-cooling cooling unit, or a cooling chip, or a combination thereof.

[0063] In this embodiment, the cooling unit 73 further includes a heat dissipation pipeline, which is made of, but not limited to, a copper tube, a stainless steel tube, a Teflon tube, a titanium tube, and an aluminum tube.

[0064] In this embodiment, the heat dissipation pipeline further includes a heat dissipation fin wound around the heat dissipation pipeline to increase the pipe diameter area to facilitate heat dissipation.

[0065] In this embodiment, the condensing unit 11 is an air-cooling cooling unit, a water-cooling cooling unit, or a cooling chip, or a combination thereof.

[0066] In this embodiment, a cooling unit is further included to separate the cathode product from liquid after being cooled by the condensing unit 11 .

[0067] Embodiment 1 In this embodiment, a pressure regulating valve and an electric two-way valve are further included between the carbon oxide storage tank 2 and the mass flow control unit 3 .

[0068] The use of this embodiment is that when the electric two-way valve is opened, the mass flow control unit 3 is used as the power to transport the carbon oxide gas, and the pressure regulating valve is used to control the pressure of the carbon oxide gas. After the carbon oxide gas enters the heating and humidifying device 1, its humidity will reach saturation, and the temperature will rise to the same level as the heating and humidifying device 1. The temperature sensor unit 103 is provided at the gas outlet 1012 of the heating and humidifying device 1 to monitor the temperature of the outlet gas. If the outlet gas temperature is insufficient, the control unit 13 sends a signal to heat the heating unit 105 inside the heating and humidifying device 1. The heating unit 105 is an electric spoon or an electric heating rod. The reason for using such a heating rod is that, compared with other heating means, such as a heating coil or a heating sleeve, the internal liquid is indirectly heated in the form of applying a heat source from the outside of the device. Such heating means are less efficient, and the slow heating speed makes it difficult to adjust the internal liquid temperature in real time. The electric spoon and the electric heating rod heat the internal liquid by directly providing heat to the internal liquid of the device, so they have better efficiency and can adjust the internal liquid temperature in real time. The method for controlling the liquid level height inside the heating and humidifying device 1 is to monitor it through the liquid level meter unit 102 arranged inside the heating and humidifying device. The liquid level meter unit 102 can be a capacitive, float, flap, or reflective liquid level meter. In this embodiment, it is a float type liquid level meter. The specific operation method is that if the liquid level meter senses that the liquid level height is insufficient, the liquid level meter unit 102 will send a signal to the control unit 13, and transmit a signal to the ultrapure water to be transported into the heating and humidifying device 1 until the liquid level returns to the set value.

[0069] The heated and humidified carbon oxide gas enters the reactor stack assembly 4 after passing through the heating tube unit, wherein the function of the heating tube unit is to maintain the temperature of the carbon oxide gas fed into the reactor stack assembly 4, and the specific operation method is to wind a heating wire around the outside of a stainless steel pipe, wherein the heat generation principle of the heating wire is resistance heat generation, and the stainless steel pipe and the heating wire are wound together with insulation cotton inside for insulation; the carbon oxide gas is electrolytically reduced in the reactor stack assembly 4 to form a mixed cathode product such as hydrogen, carbon oxide, or hydrocarbons, and the cathode product enters the condensation unit 11 through a pipe after leaving the reactor stack assembly 4 for cooling and condensation, wherein The condensing unit 11 can be air-cooled, water-cooled, or cooled by a cooling chip. Here, the condensing unit 11 is air-cooled and consists of a pressure tank and a condensing tank. The operating principle is to send air into a pressure regulating valve through an air compressor to reduce the gas pressure, and then release the air into the condensing tank to reduce its temperature and cool the cathode product entering the condensing unit 11. The condensing unit 11 monitors the temperature of the cathode product after condensation through a thermocouple. If the temperature of the cathode product is higher than the set value, the control unit 13 sends a signal to start the air compressor, and sends air into the condensing unit 11 to cool it down until the temperature of the cathode product drops to the set value.

[0070] Subsequently, the cooled product gas enters a dehydrator for liquid-gas separation. After separation, the liquid product enters a liquid product bottle for storage, and the gaseous product is directly used or input into a steel cylinder for storage.

[0071] In this embodiment, an electrolyte pump is further included between the cooling unit 73 and the reactor stack assembly 4 .

[0072] When the system is operating, the electrolyte uses the electrolyte pump as a conveying power, wherein the electrolyte pump can be a centrifugal pump, a quantitative pump, or a peristaltic pump. After the electrolyte is extracted by the electrolyte pump, it enters the reactor stack assembly 4 through a pipeline, and the electrolyte flow is recorded by a flow meter. After the electrolyte assists in the electrolytic reduction reaction of carbon oxides, it will be transported back to the electrolyte storage tank 6 through a pipeline, wherein the electrolyte storage tank 6 is connected to a gas detector to monitor the gas brought out of the reactor stack assembly 4 by the electrolyte, and the gas contains carbon oxides and oxygen.

[0073] Embodiment 2 In this embodiment, the electrolyte storage tank 6 further has a liquid level meter and an electrolyte feeding module, wherein the liquid level meter can be a capacitive type, a float type, a flap type, or a reflective type liquid level meter.

[0074] Preferably, the liquid level meter is a capacitive liquid level meter, which operates in the following manner: through the change of capacitance between the liquid and the electrode, since the capacitance value between the electrolyte and the electrode will also change accordingly when the liquid level changes, the current liquid level position can be known through capacitance value detection. In this system, the capacitive liquid level meter is a group of two, one is placed near the top of the electrolyte storage tank 6, and the other is placed near the bottom. When the electrolyte liquid level position is sensed by the liquid level meter located at the bottom, a signal is sent to the control unit 13 to transport ultrapure water into the electrolyte storage tank 6 until the liquid level height is sensed by the liquid level meter located at the top, and the control unit 13 controls to stop injecting ultrapure water.

[0075] The electrolyte feeding module has an electrolyte detector and an electrolyte storage tank. The electrolyte detector can be a pH meter or a resistance sensor for sensing the pH or resistance of the electrolyte. If the pH of the electrolyte is lower than a set value or the resistance is higher than a set value, the control unit 13 adds electrolyte concentrate from the electrolyte storage tank into the electrolyte storage tank 6 until the pH or resistance returns to the set value.

[0076] Embodiment 3 In this embodiment, when the electrolytic carbon oxide reduction system needs to be washed with water after running for a period of time, the control unit 13 will suspend electrolysis and close the electric two-way valve, and the first fluid multi-way valve 5 will be connected from the reactor stack assembly 4 and the heating tube unit to the reactor stack assembly 4 and the waste liquid discharge pipeline A, the second fluid multi-way valve 8 will be connected from the reactor stack assembly 4 and the condensing unit 11 to the reactor stack assembly 4 and the third fluid multi-way valve 10, and the third fluid multi-way valve 10 will be connected from the liquid storage tank 9 and the waste liquid discharge pipeline A to the liquid storage tank 9 and the second fluid multi-way valve 8, and then the washing liquid will enter, and after the washing liquid flows through the third fluid multi-way valve 10, the second fluid multi-way valve 8, and the cathode of the reactor stack assembly 4 in sequence, it will be connected from the first fluid multi-way valve 5 The waste liquid is discharged from the waste liquid discharge pipeline A. After the liquid injection is completed, the control unit 13 rotates the first fluid multi-way valve 5 from connecting the reactor stack assembly 4 and the waste liquid discharge pipeline A to connecting the reactor stack assembly 4 and the heating tube unit, and the third fluid multi-way valve 10 is connected from the second fluid multi-way valve 8 and the liquid storage tank 9 to connecting the second fluid multi-way valve 8 and the waste liquid discharge pipeline A. Then, the electric two-way valve is opened to transport the carbon oxide gas, and the gas is used as the power to remove the residual washing liquid in the reactor stack assembly 4. After the residual water is removed, the electric two-way valve is closed and the second fluid multi-way valve 8 is rotated from connecting the reactor stack assembly 4 and the third fluid multi-way valve 10 is rotated to connect the reactor stack assembly 4 and the condensing unit 11. At this point, the water washing procedure is completed and electrolysis can be restarted.

[0077] Embodiment 4 In the present embodiment, the cooling unit 73 is a cooling chip adhered to the outside of the electrolyte pipeline wall, a cooling water pipe wrapped around the outside of the electrolyte pipeline, or an air-cooled gun that blows toward the pipeline to cool the electrolyte. The purpose of cooling the electrolyte here is to use the electrolyte as a cooler for the reactor stack assembly 4. When the reactor stack assembly 4 generates heat due to the electrolysis reaction, the temperature of the reactor stack assembly 4 system is lowered by the electrolyte, which is lower than the temperature of the reactor stack assembly 4, to ensure safety.

[0078] Embodiment 5 In this embodiment, the cooling unit 73 includes the first temperature sensing unit 71 located at the outlet end of the reactor stack assembly 4, the second temperature sensing unit 72 located at the inlet end of the reactor stack assembly 4, and a cooling unit 73. The cooling unit 73 includes a heat dissipation pipeline, which is a copper tube, a stainless steel tube, a Teflon tube, or a titanium tube. The second temperature sensing unit 72 is used to monitor the electrolyte temperature. If the electrolyte temperature is higher than the set value, the cooling unit 73 is started for cooling.

[0079] In this embodiment, the cooling unit 73 is composed of a titanium corrugated tube 731, a heat sink fin 732 wound around the corrugated tube to increase the tube diameter area for heat dissipation, and a fan 733, wherein the fan is used to reduce the heat source emitted by the titanium corrugated tube and the heat sink fin and has an adjustable power, such as Figure 3 As shown, the specific operation mode of the cooling unit 73 is to sense the electrolyte temperature through the first temperature sensing unit 71 and the second temperature sensing unit 72. If the first temperature sensing unit 71 or the second temperature sensing unit 72 senses that the electrolyte temperature is higher than a set value, the control unit 13 increases the power of the fan to enhance the heat dissipation effect and return the temperature to the set value.

[0080] Please refer to Figure 4 , Figure 4 The present invention is a flow chart of a reduction method applicable to an electrolytic carbon oxide reduction system, comprising the following steps: In this embodiment, the carbon oxide compound is carbon dioxide.

[0081] Step S410: passing the carbon dioxide storage tank to allow the carbon dioxide gas to flow through the mass flow control unit and obtaining the mass flow rate; Step S420: using the control unit to allow the carbon dioxide gas to flow into the heating and humidifying device from the first interface of the first fluid multi-way valve according to the mass flow rate; Step S430: allowing the electrolyte to flow into the reactor stack assembly through the electrolyte storage tank; Step S440: using the reactor stack assembly to electrolyze the carbon dioxide gas and the electrolyte to produce the cathode product and the anode product respectively; Step S450: introducing the cathode product into the condensing unit through the fourth port of the second fluid multi-way valve; Step S460: After the cathode product is condensed, the liquid product and the gaseous product are respectively collected in the product storage unit.

[0082] In this embodiment, the following steps are also included: when the reactor stack assembly needs to be cleaned, the liquid is connected through the seventh interface and the eighth interface of the third fluid multi-way valve through the liquid storage tank, and after the sixth interface and the fourth interface of the second fluid multi-way valve are connected, the liquid flows into the reactor stack assembly from the fourth interface to clean the internal pipelines of the reactor stack assembly; and then the washed liquid is discharged to the waste liquid discharge pipeline by connecting the second interface and the third interface of the first fluid multi-way valve.

[0083] In this embodiment, the following steps are also included: after the washed liquid is discharged through the second interface, the first interface is connected to the third interface, and the residual moisture inside the reactor stack assembly is blown out to the waste liquid discharge pipeline through the carbon dioxide gas via the fourth interface and the sixth interface of the second fluid multi-way valve, and the eighth interface and the ninth interface of the third fluid multi-way valve are connected.

[0084] In this embodiment, the following steps are also included: cooling the electrolyte through the electrolyte circulation cooling module to reduce the temperature of the electrolyte flowing into the reactor stack assembly, so that the electrolyte cools the reactor stack assembly.

[0085] In summary, the heating and humidifying device of the present invention, the electrolytic carbon oxide reduction system using the device and the reduction method thereof, after the carbon oxide gas enters the heating and humidifying device, the humidity will reach saturation, and heat is directly provided to the liquid inside the device for heating, so it has better efficiency and can adjust the temperature of the internal liquid in real time to raise the temperature to the same as the heating and humidifying device, effectively improve the electrolysis efficiency, reduce the energy consumption when electrolyzing carbon oxides, and electrolyze and reduce carbon oxides with better reaction efficiency, thereby achieving the effect of saving energy.

[0086] Although the present invention is disclosed as above with the aforementioned embodiments, it is not intended to limit the present invention. Any equivalent substitutions made by anyone skilled in the art without departing from the spirit and scope of the present invention are still within the scope of patent protection of the present invention.

Claims

1. A heating and humidifying device for heating and humidifying a carbon oxide gas, characterized in that: include: A liquid storage barrel having a bottom and an upper cover, the liquid storage barrel is used to contain a liquid, the upper cover is provided with a plurality of protruding interfaces, the plurality of interfaces including a gas inlet, a gas outlet and a liquid injection port; A liquid level meter unit, disposed in the liquid storage barrel, for sensing the height of the liquid; a temperature sensing unit, disposed at the gas outlet, for sensing the temperature of the carbon oxide gas after humidification and heating; a gas introduction unit, disposed inside the liquid storage barrel and plugged into the gas inlet through a connecting pipe; and a heating unit, which is disposed near or at the bottom of the liquid storage barrel and is used to heat the liquid; The gas inlet is used to introduce the carbon oxide gas into the heating and humidifying device, and the carbon oxide gas is introduced into the heated liquid through the gas introduction unit to uniformly heat and humidify the liquid, and then discharged through the gas outlet.

2. The heating and humidifying device according to claim 1, characterized in that: The liquid is ultrapure water.

3. The heating and humidifying device according to claim 1, characterized in that: The gas inlet is connected to an intake pipeline to supply the pressurized carbon oxide gas.

4. The heating and humidifying device according to claim 1, characterized in that: The liquid level meter unit is but not limited to a capacitive liquid level meter, a float liquid level meter, a flap liquid level meter, or a reflective liquid level meter. When the height of the liquid level in the liquid storage barrel is lower than a lower limit, the liquid is injected into the liquid storage barrel through the liquid injection port.

5. The heating and humidifying device according to claim 1, characterized in that: The temperature sensing unit is one of an infrared temperature sensor, a sonic temperature sensor, an ultrasonic temperature sensor, a magnetic temperature sensor, a millimeter wave temperature sensor, a thermocouple, or a resistance temperature sensor.

6. The heating and humidifying device according to claim 1, characterized in that: The gas introduction unit is one of a porous ventilation pipe, a perforated ventilation pipe, a nozzle ventilation pipe, an air bubble stone, a ventilator, or a diffuser.

7. The heating and humidifying device according to claim 1, characterized in that: The heating unit is a DC heating element.

8. An electrolytic carbon oxide reduction system, comprising a heating and humidifying device as claimed in any one of claims 1 to 7, characterized in that: Also includes: a carbon oxide storage tank for storing carbon oxide gas; a mass flow control unit, fluidically connected to the carbon oxide storage tank, used as a power to transport the carbon oxide gas and obtain a mass flow rate; A reactor stack assembly for electrolyzing the carbon oxide gas and an electrolyte to produce a cathode product and an anode product respectively; a first fluid multi-way valve having a first interface connected to the heating and humidifying device, a second interface connected to a waste liquid discharge pipeline, and a third interface connected to the reactor stack assembly; An electrolyte storage tank is used to store the electrolyte, wherein the electrolyte includes 1A group ions, OH - 、CO3 2- , H2O, or PO4 3- and obtaining the anode product; An electrolyte circulation cooling module, comprising a first temperature sensing unit, a second temperature sensing unit, and a cooling unit. The electrolyte circulation cooling module fluidly connects the reactor stack assembly and the electrolyte storage tank, and is used to cool the electrolyte after the reaction in the reactor stack assembly and then inject it into the electrolyte storage tank. The first temperature sensing unit and the second temperature sensing unit are used to sense the temperature of the electrolyte before entering the reactor stack assembly and after flowing out of the reactor stack assembly, respectively, and the temperature of the electrolyte is controlled by the cooling unit. a second fluid multi-way valve having a fourth interface connected to the reactor stack assembly, a fifth interface for conducting the cathode product generated after the reaction of the reactor stack assembly, and a sixth interface; A liquid storage tank, used to store the liquid, inject the liquid into the heating and humidifying device through the liquid injection port, and wash the reactor stack assembly; a third fluid multi-way valve, having a seventh interface connected to the liquid storage tank for obtaining the liquid, an eighth interface connected to the sixth interface for introducing and exporting the liquid, and a ninth interface connected to the waste liquid discharge pipeline for discharging the waste liquid after washing; a condensing unit connected to the fifth port of the second fluid multi-way valve, for cooling the cathode product and forming a liquid product and a gaseous product respectively; a product storage unit, coupled to the condensing unit, for collecting the liquid product and the gaseous product respectively; and A control unit is electrically connected to the mass flow control unit, the first fluid multi-way valve, the second fluid multi-way valve, the third fluid multi-way valve, the electrolyte circulation cooling module, and the condensing unit, so as to control the carbon oxide gas and the electrolyte to flow into the reactor stack assembly and produce the cathode product and the anode product.

9. The electrolytic carbon oxide reduction system according to claim 8, characterized in that: It further comprises a heating tube unit, which is respectively connected to the heating and humidifying device and the first interface of the first fluid multi-way valve to maintain the temperature of the carbon oxide gas sent into the reactor stack assembly.

10. The electrolytic carbon oxide reduction system according to claim 8, characterized in that: The cooling unit is an air-cooling cooling unit, a water-cooling cooling unit, or a cooling chip, or a combination thereof.

11. The electrolytic carbon oxide reduction system according to claim 10, characterized in that: The cooling unit further includes a heat dissipation pipeline, which is made of, but not limited to, a copper tube, a stainless steel tube, a Teflon tube, a titanium tube, and an aluminum tube.

12. The electrolytic carbon oxide reduction system according to claim 11, characterized in that: The heat dissipation pipeline further includes a heat dissipation fin wound outside the heat dissipation pipeline to increase the pipe diameter area for heat dissipation.

13. The electrolytic carbon oxide reduction system according to claim 8, characterized in that: The condensing unit is an air-cooling cooling unit, a water-cooling cooling unit, or a cooling chip, or a combination thereof.

14. The electrolytic carbon oxide reduction system according to claim 8, characterized in that: The invention further comprises a cooling unit for separating the cathode product cooled by the condensing unit into liquid and gas.

15. A reduction method applicable to the electrolytic carbon oxide reduction system of claim 8, characterized in that: It includes the following steps: The carbon oxide storage tank allows the carbon oxide gas to flow through the mass flow control unit and obtains the mass flow rate; The control unit causes the carbon oxide gas to flow into the heating and humidifying device from the first interface of the first fluid multi-way valve according to the mass flow rate; Allowing the electrolyte to flow into the reactor stack assembly through the electrolyte storage tank; Using the reactor stack assembly to electrolyze the carbon oxide gas and the electrolyte to produce the cathode product and the anode product respectively; Then, introducing the cathode product into the condensing unit through the fourth port of the second fluid multi-way valve; After the cathode product is condensed, the liquid product and the gaseous product are respectively collected in the product storage unit.

16. The reduction method according to claim 15, characterized in that: It also includes the following steps: When the reactor stack assembly needs to be cleaned, the liquid is connected to the seventh interface and the eighth interface of the third fluid multi-way valve through the liquid storage tank, and the sixth interface and the fourth interface of the second fluid multi-way valve are connected, and then the liquid flows into the reactor stack assembly from the fourth interface to clean the internal pipeline of the reactor stack assembly; Then, the washed liquid is discharged to the waste liquid discharge pipeline by connecting the second interface and the third interface of the first fluid multi-way valve.

17. The reduction method according to claim 16, characterized in that: It also includes the following steps: After the washed liquid is discharged through the second interface, the first interface is connected to the third interface, and the residual moisture inside the reactor stack assembly is blown out to the waste liquid discharge pipeline through the fourth interface and the sixth interface of the second fluid multi-way valve and the eighth interface and the ninth interface of the third fluid multi-way valve through the carbon oxide gas.

18. The reduction method according to claim 15, characterized in that: The method also includes the following steps: cooling the electrolyte through the electrolyte circulation cooling module to reduce the temperature of the electrolyte flowing into the reactor stack assembly, so that the electrolyte cools the reactor stack assembly.

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