Ethylene partial pressure control device and ethylene partial pressure control system including same

Abstract

An ethylene partial pressure control device according to an embodiment may comprise: a first electrode unit extending along one plane; a second electrode unit extending along the one plane and disposed spaced apart from the first electrode unit along a direction perpendicular to the one plane; a solid electrolyte membrane disposed between the first electrode unit and the second electrode unit; a power supply unit for storing power generated between the first electrode unit and the second electrode unit; and a moisture transfer unit disposed between the first electrode unit and the second electrode unit and self-transferring moisture generated in the first electrode unit to the second electrode unit.

Description

Ethylene partial pressure control device and ethylene partial pressure control system including the same

[0001] The present invention relates to an ethylene partial pressure control device for controlling ethylene partial pressure by removing ethylene, and an ethylene partial pressure control system including the same.

[0002] Ethylene, a gas that promotes plant growth, plays a crucial role in agriculture and the food industry. When used appropriately, ethylene can enhance the growth rate and quality of crops and fruits. However, if ethylene exceeds the optimal levels required for crops and fruits, it can cause them to rot. The partial pressure of ethylene must be controlled to extend the storage and shelf life of crops and fruits, and to minimize post-harvest losses in perishable foods.

[0003] Ethylene removal technologies using oxidizers, adsorbents, and other agents can be used to control the partial pressure of ethylene. When using oxidizers or adsorbents, the ethylene removal process can result in a decrease in the oxidizing activity of the oxidizer or saturation of the adsorbent, necessitating periodic replacement. Considering these issues, electrochemical methods that utilize electrochemical reactions to remove ethylene can be used to control the partial pressure of ethylene.

[0004] In the electrochemical ethylene removal process, if a reactant other than ethylene is required, a separate reactant supply unit may be required. If a separate reactant supply unit other than ethylene is provided to control the ethylene partial pressure, the miniaturization and lightweight characteristics of the ethylene partial pressure device may be degraded.

[0005] An ethylene pressure control device according to one example may include a first electrode portion extending along a plane and a second electrode portion extending along the plane and arranged to be spaced apart from the first electrode portion along a direction perpendicular to the plane.

[0006] An ethylene pressure control device according to an example may include a solid electrolyte membrane disposed between the first electrode section and the second electrode section.

[0007] An ethylene pressure control device according to an example may include a power supply unit that stores power generated between the first electrode unit and the second electrode unit.

[0008] An ethylene pressure control device according to an example may include a moisture moving unit disposed between the first electrode unit and the second electrode unit and configured to automatically move moisture generated in the first electrode unit to the second electrode unit.

[0009] Figure 1 is a front view of an ethylene partial pressure control system according to an example.

[0010] Figure 2 is a front view of an ethylene partial pressure control system with an open door according to an example.

[0011] Figure 3 is a schematic diagram of an ethylene partial pressure control system according to an example.

[0012] Figure 4 is a schematic diagram of a storage room in which stored materials are stored according to an example.

[0013] Figure 5 is a block diagram of an ethylene partial pressure control system according to an example.

[0014] Figure 6a is a schematic cross-sectional view of an ethylene pressure control device according to an example.

[0015] Figure 6b is an exploded perspective view of an ethylene pressure control device according to an example.

[0016] Fig. 7 is a cross-sectional view of an ethylene partial pressure control device according to an example.

[0017] Figure 8 is a cross-sectional view of an ethylene partial pressure control device showing a moisture movement path according to an example.

[0018] Figure 9 is an exploded perspective view of an ethylene pressure control device according to an example.

[0019] Figure 10 is a cross-sectional view of an ethylene pressure control device showing a moisture movement path according to an example.

[0020] Figure 11 is an exploded perspective view of an ethylene pressure control device according to an example.

[0021] Figure 12 is a flow chart of an operating method of an ethylene partial pressure control system according to an example.

[0022] It should be understood that the various embodiments and terms used in this document are not intended to limit the technical features described in this document to specific embodiments, but rather to include various modifications, equivalents, or substitutes of the embodiments.

[0023] In connection with the description of the drawings, similar reference numerals may be used for similar or related components.

[0024] The singular form of a noun corresponding to an item may include one or more items, unless the context clearly indicates otherwise.

[0025] In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof.

[0026] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish one component from another and do not qualify the components in any other respect (e.g., importance or order).

[0027] When a component (e.g., a first component) is referred to as being “coupled” or “connected” to another component (e.g., a second component), with or without the terms “functionally” or “communicatively,” it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0028] The terms “include” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in this document, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0029] When a component is said to be “connected,” “coupled,” “supported,” or “in contact with” another component, this includes not only cases where the components are directly connected, coupled, supported, or in contact, but also cases where the components are indirectly connected, coupled, supported, or in contact through a third component.

[0030] When we say that a component is “on” another component, this includes not only cases where the component is in contact with the other component, but also cases where there is another component between the two components.

[0031] The term “and / or” includes any combination of a plurality of related described elements or any one of a plurality of related described elements.

[0032] The operating principle and embodiments of the present invention will be described with reference to the attached drawings below.

[0033] Fig. 1 is a front view of an ethylene partial pressure control system according to an example. Fig. 2 is a front view of an ethylene partial pressure control system with an open door according to an example. Fig. 3 is a schematic diagram of an ethylene partial pressure control system according to an example. Fig. 4 is a schematic diagram of a storage room in which a material is stored according to an example. Fig. 5 is a block diagram of an ethylene partial pressure control system according to an example.

[0034] Referring to FIGS. 1 to 5, an ethylene partial pressure control system (1) according to an example may include a storage room (11) having a predetermined storage space and an ethylene partial pressure control device (100) capable of controlling the ethylene partial pressure inside the storage room (11). The storage room (11) may be a storage space having a predetermined volume for storing stored items, such as vegetables or fruits, whose growth may be promoted or may cause decay depending on the ethylene partial pressure. The ethylene partial pressure control device (100) may remove excess ethylene remaining in the storage room (11). Accordingly, the ethylene partial pressure inside the storage room (11) may be controlled.

[0035] According to one example, the ethylene partial pressure control system (1) may be a refrigerator capable of cooling the stored items accommodated in the storage room (11). However, the present disclosure is not limited thereto, and the ethylene partial pressure control system (1) described in the present disclosure may be any cooling device capable of accommodating and storing stored items, such as vegetables or fruits, in the storage room (11), for example, an air conditioner, a refrigerator, a freezer, etc. For convenience of explanation, the ethylene partial pressure control system (1) according to one example is described below as being a refrigerator.

[0036] An ethylene partial pressure control system (1) according to an example can implement a refrigeration cycle that cools a specific object or space by using a refrigerant, which is a substance that changes sensitively to temperature and pressure, and generally absorbs heat at low temperature and low pressure and releases heat at high temperature and high pressure.

[0037] According to one example, the main body (5) can form the exterior of the ethylene partial pressure control system (1). The main body (5) can include a storage chamber (11) formed inside and a plurality of doors (12) for opening and closing the storage chamber (11).

[0038] The storage room (11) may be divided into multiple sections by partitions (15), and multiple shelves and storage containers may be arranged inside the storage room (11) to store food, etc. The storage room (11) may be divided into multiple sections by partitions (15). As an example, one or more ethylene partial pressure control devices (100) may be arranged depending on the location of the storage room (11) where the ethylene partial pressure is to be controlled.

[0039] For example, if the stored material (T) accommodated or stored in the storage room (11) is a vegetable or fruit, the vegetable or fruit can commonly generate ethylene, although the concentration may differ. In addition, the partial pressure of ethylene inside the storage room (11) can be used as an indicator of the degree of ripeness or decay of the vegetable or fruit. Therefore, by detecting the partial pressure of ethylene inside the storage room (11), the degree of ripeness or decay of the stored material (T), for example, a vegetable or fruit, accommodated or stored in the storage room (11) can be confirmed.

[0040] As an example, the sensor unit (200) can detect the ethylene partial pressure of the storage room (11) where the stored material (T) is stored. According to one example, the sensor unit (200) can include a sensing unit that detects the acidity value (potential of hydrogen; pH) that changes in response to the change in the ethylene partial pressure of the storage room (11). However, the present disclosure is not limited thereto. For example, it goes without saying that any sensing unit capable of detecting a change in the partial pressure of ethylene can be used as the sensor unit (200).

[0041] For example, if the storage room (11) is a fresh storage room that receives and stores stored items (T) such as vegetables or fruits, the sensor unit (200) may be provided in a single or multiple units and placed inside the storage room (11). For example, if the stored items (T) such as vegetables or fruits are placed in a specific area of ​​the storage room (11), the sensor unit (200) may be provided in a single unit and may detect the ethylene partial pressure of the specific area of ​​the storage room (11). As another example, if the stored items (T) such as vegetables or fruits are placed in an arbitrary area of ​​the storage room (11), the sensor unit (200) may be provided in a multiple unit and placed in the storage room (11) so as to be spaced apart from each other by a predetermined interval, thereby detecting the ethylene partial pressure of the entire space of the storage room (11).

[0042] As an example, the camera (300) can acquire an image of a storage item (T) accommodated and stored in a storage room (11). For example, if the storage item (T) accommodated and stored in the storage room (11) is a vegetable or a fruit, the camera (300) can acquire an image of the vegetable or fruit. According to an example, the camera (300) can include an internal camera for taking pictures of the inside of the storage room (11).

[0043] The processor (190) can control the camera (300) to take pictures when a specific event is detected. For example, the processor (190) can control the camera (300) to take pictures when a door is opened and then closed. As another example, the processor (190) can control the camera (300) to take pictures at regular intervals (e.g., once every 30 minutes).

[0044] The memory (400) can store images (still images or moving images) captured by the camera (300). In addition, the memory (400) can store various types of comparative images for comparison with the captured images. For example, if the stored material (T) is a food such as a vegetable or a fruit, the various types of comparative food images can include many (for example, dozens to hundreds) food images for each type of food. If the captured image includes an apple, the captured image can be compared with a comparative food image including various images of carrots in various shapes, sizes, colors, washing states, or whether they are packaged.

[0045] The storage object recognition module (500) is stored in the memory (400) and is executed by the processor (190) to identify at least one storage object (T) in an image. For example, if the storage object (T) stored in the storage room (11) is a food such as a vegetable or a fruit, the storage object recognition module (500) can identify at least one food in an image captured by the camera (300) (identify the type of food) and recognize the state of the identified food (degree of ripeness of the food).

[0046] The storage object recognition module (500) can identify each food item within an image by utilizing an image segmentation algorithm that identifies (or distinguishes) an object from the background in the image. In this case, the module may include an artificial intelligence model trained to identify at least one food item within the image. This model may be a model trained to have a standard for identifying an object from the background in the image. In addition, the storage object recognition module (500) can recognize food items using an artificial intelligence model trained to recognize food items based on food images. For example, this model may be trained using various apple images with different shapes, sizes, colors, washing conditions, or packaging status as training data to recognize the degree of ripeness of the apple.

[0047] As described above, the storage recognition module (500) can recognize the type and state of the storage (T) stored in the storage room (11), for example, the degree of maturation of the storage (T). In addition, the sensor unit (200) can detect the ethylene partial pressure of the storage room (11). Accordingly, the ethylene partial pressure control device (100) can remove ethylene remaining in the storage room (11) according to the type and state of the storage (T) identified by the storage recognition module (500) and the detected ethylene partial pressure of the storage room (11).

[0048] As an example, the ethylene partial pressure control device (100) may be disposed at one side of the storage room (11) to supply ethylene to the storage room (11) or to remove ethylene remaining in the storage room (11), as illustrated in FIG. 3. However, the present disclosure is not limited thereto, and when storing items such as vegetables or fruits in two or more of the plurality of storage rooms (11), one or more ethylene partial pressure control devices (100) may be disposed in each of the plurality of storage rooms (11) to supply ethylene to the plurality of storage rooms (11) or to remove ethylene remaining in the plurality of storage rooms (11).

[0049] According to one example, the ethylene partial pressure control device (100) can remove ethylene remaining in the storage chamber (11) using an electrochemical reaction. In the process of removing ethylene electrochemically using the ethylene partial pressure control device (100), if a reactant other than ethylene must be supplied, a separate reactant supply unit must be arranged. In order to control the ethylene partial pressure remaining in the storage chamber (11), if a separate reactant supply unit other than ethylene to be removed is separately minimized, the ethylene partial pressure control system (1) can be made lighter and smaller. Hereinafter, an ethylene partial pressure control device (100) that supplies or removes ethylene using an electrochemical reaction will be described.

[0050] Fig. 6a is a schematic cross-sectional view of an ethylene pressure control device according to an example. Fig. 6b is an exploded perspective view of an ethylene pressure control device according to an example.

[0051] Referring to FIGS. 6A and 6B, an ethylene partial pressure control device (100) according to an example may include a first electrode unit (110), a second electrode unit (120) disposed to be spaced apart from the first electrode unit (110), a solid electrolyte membrane (130) disposed between the first electrode unit (110) and the second electrode unit (120), a power supply unit (140) that stores power generated between the first electrode unit (110) and the second electrode unit (120) or applies a predetermined power between the first electrode unit (110) and the second electrode unit (120), and a moisture movement unit (180) that self-moves moisture generated in the first electrode unit (110) to the second electrode unit (120).

[0052] The first electrode portion (110) may include a flat plate shape extending along a single plane (XY plane). As an example, one side of the first electrode portion (110) may be arranged to contact the first gas diffusion layer (161) to be described later. In addition, the other side of the first electrode portion (110) may be arranged to face the solid electrolyte membrane (130) to be described later.

[0053] According to an example, the first electrode part (110) may include a first support and a first catalyst supported on one side of the first support. According to an example, the first catalyst may be Pt, Au, Ag, PSFNCu(Pr 0.6 Sr 0.4 Fe 0.8 Nb 0.1 Cu 0.1 O 3-δ ), PBFM((PrBa) 0.95 (Fe 0.9 Mo 0.1 )2O 5+δ ), PBSCF(PrBa 0.5 Sr 0.5 Co 1.5 Fe 0.5O5), Lanthanum Strontium Cobalt Ferrite (LSCF). However, the present disclosure is not limited thereto, and the first catalyst provided in the first electrode unit (110) may include any material capable of forming a predetermined voltage between the first catalyst and the second electrode unit (120).

[0054] The first support may include one or more of carbon black, Ketjen black, acetylene black, activated carbon powder, carbon molecular sieve, carbon nanotubes, activated carbon having micropores, mesoporous carbon, conductive polymer, or a mixture thereof.

[0055] The second electrode part (120) may include a flat plate shape extending along one plane (XY plane). At this time, the second electrode part (120) may be arranged to be spaced apart from the first electrode part (110) by a predetermined distance along one direction (Z direction) perpendicular to the one plane (XY plane). As an example, one surface of the second electrode part (120) may be arranged to be in contact with the second gas diffusion layer (162) to be described later. In addition, the other surface of the second electrode part (120) may be arranged to face the first electrode part (110) with the solid electrolyte membrane (130) to be described later interposed therebetween.

[0056] According to an example, the second electrode part (120) may include a second support and a second catalyst supported on one side of the second support. According to an example, the second catalyst may be Pt, Au, Ag, PSFNCu(Pr 0.6 Sr 0.4 Fe 0.8 Nb 0.1 Cu 0.1 O 3-δ ), PBFM((PrBa) 0.95 (Fe 0.9 Mo 0.1 )2O 5+δ ), PBSCF(PrBa 0.5 Sr 0.5 Co 1.5 Fe0.5 O5), Lanthanum Strontium Cobalt Ferrite (LSCF). However, the present disclosure is not limited thereto, and the second catalyst provided in the second electrode unit (120) may include any material capable of forming a predetermined voltage between the second catalyst and the first electrode unit (110).

[0057] The second support may include one or more of carbon black, Ketjen black, acetylene black, activated carbon powder, carbon molecular sieve, carbon nanotubes, activated carbon having micropores, mesoporous carbon, conductive polymer, or a mixture thereof.

[0058] The solid electrolyte membrane (130) is a hydrogen ion (H) generated from the first electrode part (110). + ) is a transmission channel through which electricity is transmitted to the second electrode unit (120), and may be a polymer electrolyte membrane having hydrogen ion exchange characteristics. For example, a solid sulfonated tetrafluoroethylene-based fluoropolymer-copolymer (C7HF 13 O5S·C2F4), BZCYYb(BaZr 1-x-y-z Ce x Y y Yb z O 3-δ , where x, y, and z are dopant levels between 0 and 1 and x+y+z <1, and δ is oxygen ion deficiency). As described above, by arranging the solid electrolyte membrane (130) between the first electrode part (110) and the second electrode part (120), unlike the liquid electrolyte, the need for separate filling is eliminated, thereby improving the convenience of use.

[0059] According to an example, the solid electrolyte membrane (130) generates hydrogen ions (H) from the first electrode portion (110). +) can provide a path for the hydrogen ions (H) to pass through the solid electrolyte membrane (130) and move to the second electrode unit (120). Therefore, the solid electrolyte membrane (130) according to an example may be a cation exchange resin membrane. For example, the solid electrolyte membrane (130) is a polymer, which is a high molecular compound, and hydrogen ions (H + ) can contribute to lowering the resistance by increasing the mobility of hydrogen ions (H). As described above, the solid electrolyte membrane (130) disposed between the first electrode part (110) and the second electrode part (120) can + ) contributes to lowering the resistance by increasing the mobility of the catalyst, thereby enabling faster implementation of ethylene removal and ethylene production reactions. In addition, the power required for the ethylene removal and ethylene production reactions can be reduced.

[0060] According to an example, the thickness of the solid electrolyte membrane (130) is, for example, 5 µm or more and 300 µm or less, 10 µm or more and 200 µm or less, or 15 µm or less and 100 µm or less. In this case, if the thickness of the solid electrolyte membrane (130) is less than 5 µm, the mechanical strength may be lowered, the chemical stability may be lowered, and if it exceeds 300 µm, the electrical resistance may be increased.

[0061] In order to form a membrane-electrode assembly, bonding of a first electrode part (110), a second electrode part (120), and a solid electrolyte membrane (130) is required, and such bonding can be performed by a heat-pressure method or the like. For example, using hot press equipment, a heat-pressure bonding process can be performed at a temperature of 120 to 150°C for 0.1 to 10 minutes and a pressure of 50 to 200 kgf / c㎠.

[0062] The first gas diffusion layer (161) can serve to enable the reaction gas to easily access the catalyst provided in the first electrode unit (110). According to one example, the first gas diffusion layer (161) can be provided in a plate shape extending along one plane and arranged to contact one surface of the first electrode unit (110).

[0063] According to an example, the first gas diffusion layer (161) may include a porous material so that the reaction gas can move to the catalyst provided in the first electrode unit (110). For example, the first gas diffusion layer (161) may include carbon paper, carbon cloth, or a metal plate in a mesh shape. The metal plate in a mesh shape may be a stainless steel mesh, a titanium mesh, or a nickel mesh. However, the present disclosure is not limited thereto, and the first gas diffusion layer (161) may include any material through which the reaction gas can pass.

[0064] The second gas diffusion layer (162) can play a role in allowing the reaction gas to easily access the catalyst provided in the second electrode unit (120). According to one example, the second gas diffusion layer (162) can be provided in a plate shape extending along one plane and arranged to contact one surface of the second electrode unit (120).

[0065] According to an example, the second gas diffusion layer (162) may include a porous material so that the reaction gas can move to the catalyst provided in the second electrode unit (120). For example, the second gas diffusion layer (162) may include carbon paper, carbon cloth, or a metal plate in a mesh shape. The metal plate in a mesh shape may be a stainless steel mesh, a titanium mesh, or a nickel mesh. However, the present disclosure is not limited thereto, and the first gas diffusion layer (162) may include any material through which the reaction gas can pass.

[0066] The first support plate (171) is disposed on one side of the first gas diffusion layer (161) and can support the first electrode unit (110) together with the second support plate (172) to be described later. According to an example, a first opening (1710) through which a reaction gas supplied to the first electrode unit (110) can be introduced may be disposed on the other side of the first support plate (171). As an example, a reaction gas, for example, oxygen (O2), disposed externally may be supplied to the first electrode unit (110) through the first opening (1710). However, the present disclosure is not limited thereto, and a separate reaction gas supply tank may be disposed and the reaction gas may be directly supplied to the first electrode unit (110) through the reaction gas supply tank.

[0067] In addition, a discharge path (1711) through which a product generated from the first electrode unit (110) can be discharged may be arranged on at least one side of the first support plate (171). As an example, the discharge path (1711) may include a plurality of groove shapes extending in one direction. At this time, one end of the discharge path (1711) may be arranged to be in contact with the first gas diffusion layer (161) so as to receive the product from the first electrode unit (110), and the other end of the discharge path (1711) may be arranged on one side of the first support plate (171). Accordingly, a predetermined path may be formed between one end and the other end of the discharge path (1711).

[0068] According to one example, moisture (H2O) may be generated from the first electrode unit (110) during the electrochemical reaction process for removing ethylene. In the present specification, moisture (H2O) may refer not only to a liquid state but also to a liquid-gas mixture state. According to one example, moisture (H2O) generated from the first electrode unit (110) may be transferred to the second electrode unit (120) through a moisture transfer unit (180) to be described later. However, when moisture (H2O) is generated from the first electrode unit (110) in excess of the moisture (H2O) required for the second electrode unit (120) during the electrochemical reaction process for removing ethylene, the excess moisture (H2O) that is not transferred to the second electrode unit (120) may be discharged to the outside through the discharge path (1711).

[0069] The second support plate (172) is arranged on one surface of the second gas diffusion layer (162) and can support the second electrode portion (120). According to one example, the first gas diffusion layer (161), the first electrode portion (110), the solid electrolyte membrane (130), the second electrode portion (120), and the second gas diffusion layer (162) can be sequentially arranged between the first support plate (171) and the second support plate (172).

[0070] According to one example, a second opening (1720) may be arranged on one surface of the second support plate (172) through which ethylene supplied to the second electrode unit (120) may be introduced and a generated gas generated from the second electrode unit (120) may be discharged. According to one example, in the electrochemical reaction process for removing ethylene, ethylene gas may be introduced and removed through the second opening (1720) provided in the second electrode unit (120), and carbon dioxide (CO2) may be generated and discharged to the outside through the second opening (1720).

[0071] As described above, the ethylene partial pressure control device (100) can remove ethylene remaining in the storage chamber (11) by using an electrochemical reaction. In the process of removing ethylene by electrochemical means using the ethylene partial pressure control device (100), if a reactant other than ethylene must be supplied, a separate reactant supply unit must be provided.

[0072] According to one example, a reaction gas, for example, oxygen (O2), may be introduced through a first opening (1710) provided in a first support plate (171), ethylene may be introduced through a second opening (1720) provided in a second support plate (172), and a product gas, for example, carbon dioxide (CO2), may be discharged.

[0073] In other words, a reaction gas, for example, oxygen (O2), can be introduced through an external region of the ethylene partial pressure control device (100), for example, an external region arranged to face the first support plate (171). In addition, ethylene arranged in a target space for adjusting the partial pressure of ethylene, for example, a storage room (11), can be introduced through a second opening (1720), and carbon dioxide (CO2) can be discharged into the storage room (11) through the second opening (1720). Therefore, in order to remove ethylene remaining in the storage room (11) using an electrochemical reaction, if a water tank for supplying a liquid-type reactant, for example, water (H2O), among the reactants to be supplied to the ethylene partial pressure control device (100) is removed, the ethylene partial pressure control system (1) can be made lighter and smaller.

[0074] Hereinafter, an ethylene partial pressure control device (100) capable of performing an ethylene removal process without arranging a separate water tank is described by arranging a moisture transfer unit (180) between a first electrode unit (110) and a second electrode unit (120), and transferring moisture (H2O) generated in the first electrode unit (110) to the second electrode unit (120) using the moisture transfer unit (180) and reusing it in the second electrode unit (120).

[0075] Fig. 7 is a cross-sectional view of an ethylene partial pressure control device according to an example. Fig. 8 is a cross-sectional view of an ethylene partial pressure control device showing a moisture movement path according to an example.

[0076] Referring to FIG. 7, in the process of removing ethylene using an ethylene partial pressure control device (100) according to an example, oxygen (O2) may be supplied to the first electrode unit (110). For example, oxygen (O2) may be delivered to the first gas diffusion layer (161) through the first opening (1710) provided in the first support plate (171). The oxygen (O2) delivered to the first gas diffusion layer (161) may pass through the first gas diffusion layer (161) and be supplied to the first electrode unit (110). As described above, when oxygen (O2) is supplied to the first electrode unit (110), the following reaction may occur in the first electrode unit (110) to produce moisture (H2O).

[0077] First electrode section:

[0078]

[0079] In addition, in the process of removing ethylene using the ethylene partial pressure control device (100), moisture (H2O) and ethylene (C2H4) may be supplied to the second electrode unit (120). According to one example, the external space where ethylene (C2H4) is supplied to the second electrode unit (120) may be a partial pressure control space where the partial pressure of ethylene must be controlled, for example, a storage room (11) as illustrated in FIG. 3. According to one example, ethylene (C2H4) placed in the partial pressure control space may be transferred to the second gas diffusion layer (162) through the second opening (1720) provided in the second support plate (172). The ethylene (C2H4) transferred to the second gas diffusion layer (162) may pass through the second gas diffusion layer (162) and be supplied to the second electrode unit (120).

[0080] As an example, if the target space where the partial pressure of ethylene is to be controlled is a storage room (11) having a predetermined receiving space as illustrated in FIG. 3, ethylene (C2H4) placed in the storage room (11) can be introduced through a second opening (1720) provided in a second support plate (172) through natural circulation. However, the present disclosure is not limited thereto, and in order to increase the speed of the partial pressure decrease of ethylene, a fan (not shown) may be placed inside the storage room (11) to forcibly supply ethylene (C2H4) to the second opening (1720) provided in the second support plate (172).

[0081] As an example, moisture (H2O) to be supplied to the second electrode unit (120) may be generated in the first electrode unit (110) and transferred to the second electrode unit (120) through the moisture transfer unit (180).

[0082] The moisture transfer unit (180) is arranged between the first electrode unit (110) and the second electrode unit (120), and can self-transfer moisture (H2O) generated in the first electrode unit (110) to the second electrode unit (120). As the moisture transfer unit (180) according to one example self-transfers moisture (H2O) generated in the first electrode unit (110) to the second electrode unit (120) without additionally arranging an additional power source, for example, a pump, the ethylene partial pressure control device (100) can be made lighter and smaller, and energy efficiency can be improved.

[0083] According to an example, the moisture transfer unit (180) may be arranged to surround at least one side of the first electrode unit (110) and the second electrode unit (120). As described above, in order to self-transfer moisture (H2O) generated in the first electrode unit (110) to the second electrode unit (120), the moisture transfer unit (180) may be arranged to connect the first electrode unit (110) and the second electrode unit (120). At this time, the moisture transfer unit (180) may be arranged to surround any region formed between the first electrode unit (110) and the second electrode unit (120), for example, at least one side of the first electrode unit (110) and the second electrode unit (120).

[0084] As an example, the moisture transfer unit (180) may include first and second moisture absorption pads (181, 182) that absorb moisture (H2O) generated in the first electrode unit (110) and move the absorbed moisture (H2O) to the second electrode unit (120). According to an example, the first and second moisture absorption pads (181, 182) may be disposed between the first electrode unit (110) and the second electrode unit (120) and may include any shape that can connect the first electrode unit (110) and the second electrode unit (120). For example, the first and second moisture absorption pads (181, 182) may have any shape that can absorb moisture (H2O) generated in the first electrode unit (110), form a concentration gradient of moisture (H2O) between the first electrode unit (110) and the second electrode unit (120), and transfer moisture (H2O) to the second electrode unit (120).

[0085] The first and second moisture absorption pads (181, 182) according to an example may include a material capable of absorbing moisture (H2O) generated in the first electrode portion (110). For example, the first and second moisture absorption pads (181, 182) may include at least one of a partially neutralized and crosslinked poly(acrylic acid), a hydrolyzed graft polymer of starch-acrylic acid, a saponified copolymer of vinyl acetate-acrylic acid ester, a hydrolyzed copolymer of acrylonitrile, and acrylamide.

[0086] In addition, the first and second moisture absorption pads (181, 182) according to an example may include a thin film plate shape so as to form a concentration gradient of moisture (H2O) between the first electrode unit (110) and the second electrode unit (120) and transfer moisture (H2O) to the second electrode unit (120). For example, the first and second moisture absorption pads (181, 182) may have a thickness of 1 μm or more and 1 cm or less.

[0087] Referring to FIG. 6b and FIG. 8, the first moisture absorption pad (181) may include a first-first absorption portion (1811), a first connection pad (1812), and a first-second supply portion (1813). According to an example, the first-first absorption portion (1811), the first connection pad (1812), and the first-second supply portion (1813) may be formed integrally or formed separately and arranged to be interconnected.

[0088] The 1-1 absorbing portion (1811) may be arranged to contact the first electrode portion (110) or to receive moisture (H2O) from the first electrode portion (110) through the first gas diffusion layer (161). Accordingly, moisture (H2O) generated from the first electrode portion (110) may be absorbed into the 1-1 absorbing portion (1811). One end of the 1-1 absorbing portion (1811) and one end of the first connection pad (1812) may be arranged to be interconnected. As the 1-1 absorbing portion (1811) absorbs moisture (H2O) generated from the first electrode portion (110), a concentration gradient for moisture (H2O) may be formed between the 1-1 absorbing portion (1811) and the first connection pad (1812). Accordingly, moisture (H2O) absorbed by the 1-1 absorption unit (1811) can be transferred to the first connection pad (1812). At this time, if moisture (H2O) that has not been transferred to the first connection pad (1812) remains, it can be discharged to the outside through the discharge path (1711) provided in the first support plate (171).

[0089] The other end of the first connection pad (1812) and one end of the first-second supply unit (1813) may be arranged to be interconnected. As moisture (H2O) is transferred from the first-first absorption unit (1811) to the first connection pad (1812), a concentration gradient for moisture (H2O) may be formed between the first connection pad (1812) and the first-second supply unit (1813). Accordingly, moisture (H2O) transferred to the first connection pad (1812) may be transferred to the first-second supply unit (1813). At this time, the other end of the first-second supply unit (1813) may be arranged to contact the second electrode unit (120) or transfer moisture (H2O) to the second electrode unit (120) through the second gas diffusion layer (162). Accordingly, moisture (H2O) delivered to the 1st-2nd supply unit (1813) can be delivered to the 2nd electrode unit (120).

[0090] According to an example, the second moisture absorption pad (182) may include a second-first absorption portion (1821), a second connection pad (1822), and a second-second supply portion (1823). The process in which moisture (H2O) generated in the first electrode portion (110) is transferred to the second electrode portion (120) through the second-first absorption portion (1821), the second connection pad (1822), and the second-second supply portion (1823) is substantially the same as that of the first-first absorption portion (1811), the first connection pad (1812), and the first-second supply portion (1813) included in the first moisture absorption pad (181), and therefore, description thereof is omitted herein.

[0091] As described above, the first and second moisture absorption pads (181, 182) can transfer moisture (H2O) generated in the first electrode unit (110) between the first electrode unit (110) and the second electrode unit (120) by utilizing the concentration gradient of moisture (H2O). Therefore, regardless of the position of the ethylene partial pressure control device (100) according to an example, moisture can be self-moved from the first electrode unit (110) to the second electrode unit (120), for example, in a direction opposite to the direction of gravity (Z direction), so that the design convenience of the ethylene partial pressure control device (100) can be improved.

[0092] Referring again to FIG. 7, as described above, when moisture (H2O) and ethylene (C2H4) are supplied to the second electrode unit (120), the following reaction may occur in the second electrode unit (120) to produce carbon dioxide (CO2). At this time, the first electrode unit (110) may function as a cathode, and the second electrode unit (120) may function as an anode.

[0093] Second electrode section:

[0094]

[0095] Overall reaction equation:

[0096]

[0097] As can be seen from the overall reaction formula above, when removing ethylene, ethylene (C2H4) and oxygen (O2) may be supplied and carbon dioxide (CO2) and moisture (H2O) may be generated in the overall reaction of the ethylene partial pressure control device (100). In other words, the ethylene partial pressure control device (100) according to an example may remove ethylene (C2H4) and oxygen (O2) and generate carbon dioxide (CO2) and moisture (H2O) during the ethylene removal process. At this time, a predetermined power may be generated between the first electrode unit (110) and the second electrode unit (120) and stored in the power supply unit (140). The processor (190) according to an example may control the power supply unit (140) so that the predetermined power generated between the first electrode unit (110) and the second electrode unit (120) is stored in the power supply unit (140), thereby implementing a removal mode for removing ethylene.

[0098] Fig. 9 is an exploded perspective view of an ethylene pressure control device according to an example. Fig. 10 is a cross-sectional view of an ethylene pressure control device showing a moisture movement path according to an example.

[0099] As described above, the moisture transfer unit (180) may be arranged to surround any region formed between the first electrode unit (110) and the second electrode unit (120), for example, one or more sides of the first electrode unit (110) and the second electrode unit (120). In one example, not only may a single moisture absorption pad be arranged to surround one side of the first electrode unit (110) and the second electrode unit (120), but three or more moisture absorption pads may also be arranged to surround three or more sides of the first electrode unit (110) and the second electrode unit (120).

[0100] Referring to FIGS. 9 and 10, a moisture moving unit (180) according to an example may include first to fourth moisture absorption pads (181-184) that absorb moisture (H2O) generated in a first electrode unit (110) and move the absorbed moisture (H2O) to a second electrode unit (120). The first moisture absorption pad (181) may be arranged to surround one side of the first electrode unit (110) and the second electrode unit (120). In addition, the second moisture absorption pad (182) may be arranged to surround the other side of the first electrode unit (110) and the second electrode unit (120). In addition, the third moisture absorption pad (183) may be arranged to surround the other side of the first electrode unit (110) and the second electrode unit (120), for example, the front. In addition, the fourth moisture absorption pad (184) may be arranged to surround another side, for example, the rear side, of the first electrode portion (110) and the second electrode portion (120). The third moisture absorption pad (183) and the fourth moisture absorption pad (184) are substantially the same as the first moisture absorption pad (181) and the second moisture absorption pad (182) except for the arrangement positions, and therefore description thereof is omitted here.

[0101] Figure 11 is an exploded perspective view of an ethylene pressure control device according to an example.

[0102] Referring to FIG. 11, an ethylene partial pressure control device (100) according to an example may include a first electrode unit (110), a second electrode unit (120) disposed to be spaced apart from the first electrode unit (110), a solid electrolyte membrane (130) disposed between the first electrode unit (110) and the second electrode unit (120), a power supply unit (140) that stores power generated between the first electrode unit (110) and the second electrode unit (120) or applies a predetermined power between the first electrode unit (110) and the second electrode unit (120), and a moisture movement unit (280) that self-moves moisture generated in the first electrode unit (110) to the second electrode unit (120). The remaining configuration, excluding the moisture movement unit (280), is substantially the same as the configuration described with respect to FIG. 6B, and therefore, description thereof is omitted herein.

[0103] The moisture transfer unit (280) is arranged between the first electrode unit (110) and the second electrode unit (120), and can self-transfer moisture (H2O) generated in the first electrode unit (110) to the second electrode unit (120). As the moisture transfer unit (280) according to one example self-transfers moisture (H2O) generated in the first electrode unit (110) to the second electrode unit (120) without additionally arranging an additional power source, for example, a pump, the ethylene partial pressure control device (100) can be made lighter and smaller, and energy efficiency can be improved.

[0104] According to an example, the moisture transfer unit (280) may be arranged to surround at least one side of the first electrode unit (110) and the second electrode unit (120). As described above, in order to self-transfer moisture (H2O) generated in the first electrode unit (110) to the second electrode unit (120), the moisture transfer unit (280) may be arranged to connect the first electrode unit (110) and the second electrode unit (120). At this time, the moisture transfer unit (180) may be arranged to surround any region formed between the first electrode unit (110) and the second electrode unit (120), for example, at least one side of the first electrode unit (110) and the second electrode unit (120).

[0105] As an example, the moisture transfer unit (280) may include a first connection moisture absorption pad (281), a second connection moisture absorption pad (282), and a flow pipe (283) so as to absorb moisture (H2O) generated in the first electrode unit (110) and move the absorbed moisture (H2O) to the second electrode unit (120). The first connection moisture absorption pad (281) may be arranged to contact the first electrode unit (110) or to receive moisture (H2O) from the first electrode unit (110) through the first gas diffusion layer (161). Accordingly, moisture (H2O) generated from the first electrode unit (110) may be absorbed by the first connection moisture absorption pad (281). One end of the first connection moisture absorption pad (281) and one end of the flow pipe (283) may be arranged to be interconnected.

[0106] The moisture (H2O) absorbed by the first connection absorption pad (281) from the first electrode portion (110) can be transferred to the flow path (283). The flow path (283) according to an example can include one or more flow paths having any shape through which moisture (H2O) can move. For example, the one or more flow paths can extend along the direction of gravity (-Z direction). However, the present disclosure is not limited thereto, and the one or more flow paths may be replaced with any flow path that can move moisture (H2O) along the direction of gravity (-Z direction). For example, the one or more flow paths may be replaced with a flow path shape that can move moisture (H2O) in the direction of gravity (-Z direction) by using the capillary effect.

[0107] According to an example, the first connection moisture absorption pad (281), the flow pipe (283), and the second connection moisture absorption pad (282) to be described later can be sequentially arranged along the direction of gravity (-Z direction). Accordingly, moisture (H2O) transferred from the first connection moisture absorption pad (281) can pass through the flow pipe (283) and move downward along the direction of gravity (-Z direction). Moisture (H2O) that passes through the flow pipe (283) and moves downward along the direction of gravity (-Z direction) can move to the second connection moisture absorption pad (282).

[0108] The second connection moisture absorption pad (282) can transfer moisture (H2O) received from the flow pipe (283) to the second electrode unit (120). The other end of the second connection moisture absorption pad (282) can be arranged to contact the second electrode unit (120) or transfer moisture (H2O) to the second electrode unit (120) through the second gas diffusion layer (162). Accordingly, moisture (H2O) transferred to the second connection moisture absorption pad (282) can be transferred to the second electrode unit (120).

[0109] The first and second connecting moisture absorbent pads (281, 282) according to an example may include a material capable of absorbing moisture (H2O). For example, the first and second connecting moisture absorbent pads (281, 282) may include at least one of a partially neutralized and crosslinked poly(acrylic acid), a hydrolyzed graft polymer of starch-acrylic acid, a saponified copolymer of vinyl acetate-acrylic acid ester, a hydrolyzed copolymer of acrylonitrile, and a hydrolyzed copolymer of acrylamide. In addition, the first and second connecting moisture absorbent pads (281, 282) according to an example may include a thin film plate shape having a predetermined thickness. For example, the first and second connecting moisture absorbent pads (281, 282) may have a thickness of 1 μm or more and 1 cm or less.

[0110] Figure 12 is a flow chart of an operating method of an ethylene partial pressure control system according to an example.

[0111] Referring to FIGS. 4, 5, and 12, an operating method of an ethylene partial pressure control system according to an example may include a step of photographing a stored object. (S110) As an example, when a user stores a stored object in a storage room (11), the camera (300) may obtain an image of the stored object (T) accommodated and stored in the storage room (11). For example, when the stored object (T) accommodated and stored in the storage room (11) is a vegetable or a fruit, the camera (300) may obtain an image of the vegetable or the fruit. The camera (300) according to an example may include an internal camera for photographing the inside of the storage room (11).

[0112] Next, a step of identifying the type of storage and recognizing the state of the storage may be included. (S120) As an example, the storage recognition module (500) can identify the type of storage, for example, the type of food, from an image captured by the camera (300), and recognize the state of the identified storage, for example, the degree of ripening of the food.

[0113] Next, a step of detecting the partial pressure of ethylene in the storage room may be included. (S130) As an example, the sensor unit (200) may detect the partial pressure of ethylene in the storage room (11) where the stored goods are stored. As an example, if the stored goods received or stored in the storage room (11) are vegetables or fruits, the vegetables or fruits may commonly generate ethylene, although there may be differences in concentration. In addition, the partial pressure of ethylene inside the storage room (11) may be used as an indicator of the degree of ripeness or decay of the vegetables or fruits. Therefore, the sensor unit (200) may detect the partial pressure of ethylene in the storage room (11) where the stored goods are stored, in order to confirm the degree of ripeness or decay of the stored goods.

[0114] Next, a step of controlling an ethylene partial pressure control device to remove ethylene according to the ethylene partial pressure of the detected storage room and the type and state of the identified storage material may be included. (S140) An ethylene partial pressure control device (100) according to an example may implement a production mode for generating ethylene or a removal mode for removing ethylene according to the type and state of the storage material identified by the storage material recognition module (500) and the ethylene partial pressure of the detected storage room (11).

[0115] The above examples are merely illustrative, and those skilled in the art will readily appreciate various modifications and equivalent alternative embodiments. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the invention as set forth in the following claims.

[0116] One aspect of the present disclosure provides an ethylene partial pressure control device that controls the ethylene partial pressure of a storage room by removing ethylene contained in the storage room.

[0117] One aspect of the present disclosure provides an ethylene partial pressure control device that can be made lightweight and compact by reusing moisture generated in an ethylene removal process, thereby eliminating the need for a separate moisture supply unit.

[0118] One aspect of the present disclosure provides an ethylene partial pressure control device that can improve energy efficiency by allowing moisture to move from a first electrode section to a second electrode section without requiring an additional power source to force moisture to move.

[0119] One aspect of the present disclosure provides an ethylene partial pressure control device with improved design convenience by self-moving moisture from a first electrode section to a second electrode section regardless of the location of the ethylene partial pressure control device using a concentration gradient.

[0120] One aspect of the present disclosure provides an ethylene partial pressure control device having improved usability by eliminating the need for separate filling by using a solid electrolyte membrane as an electrolyte membrane disposed between a first electrode portion and a second electrode portion.

[0121] One aspect of the present disclosure provides an ethylene partial pressure control device in which ethylene removal and ethylene production reactions are realized more quickly and a power reduction effect is generated by using a solid electrolyte membrane as an electrolyte membrane disposed between a first electrode portion and a second electrode portion.

[0122] One aspect of the present disclosure provides an ethylene partial pressure control device capable of controlling the feed rate of reactants in ethylene removal and production modes to enhance or decrease the ethylene removal and production rates.

[0123] One aspect of the present disclosure provides an ethylene partial pressure control system capable of controlling the operation of an ethylene partial pressure control device according to the state of the stored material accommodated in a storage room to control the degree of maturation of the stored material.

[0124] The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present disclosure belongs from the description below.

[0125] An ethylene partial pressure control device according to one example may include a first electrode portion extending along one plane, a second electrode portion extending along the one plane and arranged to be spaced apart from the first electrode portion along one direction perpendicular to the one plane, a solid electrolyte membrane arranged between the first electrode portion and the second electrode portion, a power supply portion storing power generated between the first electrode portion and the second electrode portion, and a moisture movement portion arranged between the first electrode portion and the second electrode portion and self-moving moisture generated in the first electrode portion to the second electrode portion.

[0126] According to one example of the present disclosure, by reusing moisture generated in an ethylene removal process, a separate moisture supply unit is not required, and thus an ethylene partial pressure control device that can be made lightweight and compact can be provided.

[0127] The above moisture transfer unit may include a moisture absorption pad that absorbs moisture generated in the first electrode unit and moves the absorbed moisture to the second electrode unit.

[0128] According to one example of the present disclosure, an ethylene partial pressure control device can be provided that can improve energy efficiency because moisture can move from the first electrode section to the second electrode section without having to place an additional power source to force the movement of moisture.

[0129] The above moisture absorbing pad may comprise at least one of a partially neutralized and crosslinked poly(acrylic acid), a hydrolyzed graft polymer of starch-acrylic acid, a saponified copolymer of vinyl acetate-acrylic acid ester, a hydrolyzed copolymer of acrylonitrile, and acrylamide.

[0130] The above moisture absorption pad may have a thickness of 1 μm or more and 1 cm or less.

[0131] The above moisture transfer unit may be arranged to surround at least one side of the first electrode unit and the second electrode unit.

[0132] According to one example of the present disclosure, an ethylene partial pressure control device with improved design convenience can be provided by self-moving moisture from a first electrode section to a second electrode section regardless of the location of the ethylene partial pressure control device using a concentration gradient.

[0133] The solid electrolyte membrane is a sulfonated tetrafluoroethylene-based fluoropolymer-copolymer (C7HF 13 O5S·C2F4), BZCYYb(BaZr 1-x-y-z Ce x Y y Yb z O 3-δ , where x, y, and z are dopant levels between 0 and 1 and x+y+z <1, and δ may include one or more of oxygen ion deficiency.

[0134] The first electrode unit may include a first catalyst and a first support supporting the first catalyst, and the second electrode unit may include a second catalyst and a second support supporting the second catalyst.

[0135] The first catalyst provided in the first electrode part and the second catalyst provided in the second electrode part are Pt, Au, Ag, PSFNCu(Pr 0.6 Sr 0.4 Fe 0.8 Nb 0.1 Cu 0.1 O3-δ ), PBFM((PrBa) 0.95 (Fe 0.9 Mo 0.1 )2O 5+δ ), PBSCF(PrBa 0.5 Sr 0.5 Co 1.5 Fe 0.5 O5), Lanthanum Strontium Cobalt Ferrite (LSCF).

[0136] According to one example of the present disclosure, by using a solid electrolyte membrane as the electrolyte membrane disposed between the first and second electrode portions, the need for separate filling can be eliminated, thereby improving usability. Furthermore, by using a solid electrolyte membrane as the electrolyte membrane disposed between the first and second electrode portions, ethylene removal and ethylene production reactions can be realized more quickly, and a power reduction effect can be generated.

[0137] It may further include a first gas diffusion layer arranged to contact one surface of the first electrode portion and a second gas diffusion layer arranged to contact one surface of the second electrode portion.

[0138] The first gas diffusion layer and the second gas diffusion layer may include at least one of carbon paper, carbon cloth, or a mesh-shaped metal plate.

[0139] It further includes a first support plate supporting the first electrode portion and a second support plate supporting the second electrode portion, and the first electrode portion, the solid electrolyte membrane, and the second electrode portion can be sequentially arranged between the first support plate and the second support plate.

[0140] The first support plate may have a first opening through which a reaction gas supplied to the first electrode unit flows in and a discharge path through which moisture generated from the first electrode unit flows out, and the second support plate may have a second opening for flowing ethylene into the second electrode unit.

[0141] According to one example of the present disclosure, the ethylene removal rate can be improved or reduced by controlling the supply rate and supply uniformity of the reactants supplied to the first electrode unit and the second electrode unit during the ethylene removal process.

[0142] The moisture transfer unit may include a first connection moisture absorption pad that absorbs moisture generated in the first electrode unit, a flow pipe that receives the moisture from the first connection moisture absorption pad, and a second connection moisture absorption pad that receives the moisture from the flow pipe and transmits it to the second electrode unit.

[0143] The first connection moisture absorption pad, the flow pipe, and the second connection moisture absorption pad can be sequentially arranged along the direction of gravity.

[0144] The first connecting moisture absorbent pad and the second connecting moisture absorbent pad may comprise at least one of a partially neutralized and crosslinked poly(acrylic acid), a hydrolyzed graft polymer of starch-acrylic acid, a saponified copolymer of vinyl acetate-acrylic acid ester, a hydrolyzed copolymer of acrylonitrile, and acrylamide.

[0145] According to one example of the present disclosure, an ethylene partial pressure control device with improved design convenience can be provided by self-moving moisture from a first electrode section to a second electrode section using gravity.

[0146] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.

Claims

1. A first electrode portion (110) extending along a plane; A second electrode portion (120) extending along the above plane and arranged to be spaced apart from the first electrode portion along a direction perpendicular to the above plane; A solid electrolyte membrane (130) disposed between the first electrode portion and the second electrode portion; A power supply unit (140) that stores power generated between the first electrode unit and the second electrode unit; and A moisture transfer unit (180) disposed between the first electrode unit and the second electrode unit and configured to automatically transfer moisture generated in the first electrode unit to the second electrode unit; Ethylene partial pressure control device.

2. In paragraph 1, The above moisture transfer unit includes a moisture absorption pad (181, 182) that absorbs moisture generated in the first electrode unit and moves the absorbed moisture to the second electrode unit. Ethylene partial pressure control device.

3. In paragraph 2, The above moisture absorbing pad (181, 182) comprises at least one of a partially neutralized and crosslinked poly(acrylic acid), a hydrolyzed graft polymer of starch-acrylic acid, a saponified copolymer of vinyl acetate-acrylic acid ester, a hydrolyzed copolymer of acrylonitrile, and acrylamide. Ethylene partial pressure control device.

4. In paragraph 3, The above moisture absorption pad (181, 182) has a thickness of 1 μm or more and 1 cm or less. Ethylene partial pressure control device.

5. In any one of paragraphs 1 to 4, The above moisture transfer unit (180) is arranged to surround at least one side of the first electrode unit and the second electrode unit. Ethylene partial pressure control device.

6. In any one of paragraphs 1 to 5, The above solid electrolyte membrane (130) is a sulfonated tetrafluoroethylene-based fluoropolymer-copolymer (C7HF 13 O5S·C2F4), BZCYYb(BaZr 1-x-y-z Ce x Y y Yb z O 3-δ , wherein x, y, and z are dopant levels between 0 and 1 and x+y+z <1, and δ is oxygen ion deficiency). Ethylene partial pressure control device.

7. In any one of paragraphs 1 to 6, The above first electrode part (110) has a first catalyst and a first carrier supporting the first catalyst, The second electrode part (120) has a second catalyst and a second carrier supporting the second catalyst. Ethylene partial pressure control device.

8. In any one of paragraphs 1 to 7, The first catalyst provided in the first electrode part (110) and the second catalyst provided in the second electrode part (120) are Pt, Au, Ag, PSFNCu(Pr 0.6 Sr 0.4 Fe 0.8 Nb 0.1 Cu 0.1 O 3-δ ), PBFM((PrBa) 0.95 (Fe 0.9 Mo 0.1 )2O 5+δ ), PBSCF(PrBa 0.5 Sr 0.5 Co 1.5 Fe 0.5 O5), Lanthanum Strontium Cobalt Ferrite (LSCF), Ethylene partial pressure control device.

9. In any one of paragraphs 1 to 8, Further comprising a first gas diffusion layer (161) arranged to contact one surface of the first electrode portion; and a second gas diffusion layer (162) arranged to contact one surface of the second electrode portion; Ethylene partial pressure control device.

10. In paragraph 9, The first gas diffusion layer and the second gas diffusion layer include at least one of carbon paper, carbon cloth, or a metal plate in the form of a mesh. Ethylene partial pressure control device.

11. In any one of paragraphs 1 to 10, A first support plate (171) supporting the first electrode portion; and Further comprising a second support plate (172) supporting the second electrode portion; A first electrode part, a solid electrolyte membrane, and a second electrode part are sequentially arranged between the first support plate and the second support plate. Ethylene partial pressure control device.

12. In paragraph 11, The above first support plate, It has a first opening (1710) through which a reaction gas supplied to the first electrode section flows in and a discharge path (1711) through which moisture generated from the first electrode section is discharged. The above second support plate, It has a second opening (1720) for introducing ethylene into the second electrode section. Ethylene partial pressure control device.

13. In any one of paragraphs 1 to 12, The above moisture moving part (280) A first connection moisture absorption pad (281) that absorbs moisture generated in the first electrode section; A flow pipe (283) that receives the moisture from the first connecting absorbent pad; A second connection moisture absorption pad (282) that receives the moisture from the above-mentioned pipe and transmits it to the second electrode unit; Ethylene partial pressure control device.

14. In paragraph 13, The first connection moisture absorption pad (281), the flow pipe (283) and the second connection moisture absorption pad (282) are sequentially arranged along the direction of gravity. Ethylene partial pressure control device.

15. In paragraph 13 or 14, The first connecting moisture absorbent pad (281) and the second connecting moisture absorbent pad (282) comprise at least one of a partially neutralized and crosslinked poly(acrylic acid), a hydrolyzed graft polymer of starch-acrylic acid, a saponified copolymer of vinyl acetate-acrylic acid ester, a hydrolyzed copolymer of acrylonitrile, and acrylamide. Ethylene partial pressure control device.

Images