JP2023158373A - oxygen removal equipment - Google Patents

Abstract

To provide a simply structured oxygen removal device capable of reducing a pressure loss and continuously treating a great volume of gas.SOLUTION: The oxygen removal device has a honeycomb body carrying a gas separation member which can separate oxygen or nitrogen such as a catalyst or an absorbent instead of filling an adsorption tower used for a catalyst/adsorption method with a catalyst/absorbent pellet or the like. In a treatment operation, treatment gas is passed through the honeycomb body to remove oxygen or nitrogen from the treatment gas. In a reproduction operation, reproduced gas is passed to reproduce the honeycomb body. Thus, a pressure loss can be reduced, and a great volume of gas can be treated.SELECTED DRAWING: Figure 1

Description

The present invention relates to an oxygen removal device using a gas separation member capable of separating oxygen or nitrogen.

As oxygen removal and concentration techniques, PSA (Pressure Swing Adsorption) method, membrane separation method, cryogenic separation method, catalyst/adsorption method, etc. are known. The principle of the PSA method, membrane separation method, and cryogenic separation method is to separate gases using the adsorption rate of an adsorbent due to pressure, the membrane passage rate of gas, and the difference in boiling point of gas. The catalyst/adsorption method selectively removes oxygen by repeating adsorption (purification) and regeneration using an adsorption tower filled with pellets such as a catalyst or adsorbent.

Patent Document 1 discloses an oxygen concentrator using a PSA method. In other words, pressurized air is introduced into an adsorption column filled with an adsorbent such as zeolite that selectively adsorbs nitrogen gas, and the adsorbent adsorbs nitrogen gas contained in the air, which then selectively removes it. The feature is that by increasing the oxygen concentration in the air and reducing the pressure inside the adsorption cylinder, the nitrogen gas adsorbed on the adsorbent after oxygen concentration is desorbed and the adsorption capacity of the adsorbent is restored. shall be.

Further, Patent Document 2 discloses an oxygen separation device using a separation membrane. That is, in order to obtain concentrated oxygen gas from air, a separation membrane that selectively permeates oxygen gas is used to separate oxygen, which has a high permeation rate, and nitrogen, which has a low permeation rate.

Further, Patent Document 3 discloses a glove box equipped with an inert gas circulation purification device that removes oxygen, moisture, etc. in the glove box using a catalyst/adsorption method. In other words, in order to maintain a constant inert gas atmosphere inside the glove box and efficiently remove oxygen and moisture, a metal catalyst filling section is used that is filled with a metal catalyst that removes oxygen from the gas, and a metal catalyst filling section that adsorbs moisture from the gas. The structure is configured to supply circulating gas from which oxygen and moisture have been removed by an adsorption tower consisting of a desiccant-filled part filled with a desiccant for the molecular sieve to be removed, and the gas in the glove box is sucked out by a circulation pump and adsorbed. While passing through the tower, oxygen and moisture are removed and the gas is returned to the glove box for gas circulation.

JP2006-87683 JP2010-184844 Patent No. 5676521 JP2019-52835 JP2020-193765

The PSA method, membrane separation method, and cryogenic separation method require a buffer tank to store purified nitrogen because they operate intermittently. Furthermore, the amount of nitrogen used is limited by the capacity of the buffer tank. Further, in the PSA system, since air is pressurized and depressurized using a pump, compressor, etc., there is a problem in that operation noise is generated inside the device due to repeated pressurization and depressurization. In addition, in the PSA method, the oxygen concentration obtained is largely dependent on the pressure of the pressurized air, so increasing the pressurizing capacity of pumps and compressors to obtain high oxygen concentration gas may result in larger sizes and higher power consumption. There are also problems such as consumption of energy and short life due to operation under high load conditions.

The membrane separation method has a problem in that oxygen gas in the air cannot be concentrated to a high concentration. The cryogenic separation method also requires cooling to extremely low temperatures, which has drawbacks such as increased equipment size and a longer start-up time. Furthermore, in the case of the purpose of oxygen removal that generates nitrogen, nitrogen as an inert gas can be used in cylinders, vaporized liquefied nitrogen, or air by PSA method, membrane separation method, or cryogenic separation method. Even nitrogen from which oxygen has been removed is expensive, and when using nitrogen from which oxygen has been removed as an inert gas, it is a challenge to reduce the cost.

In a glove box like the one disclosed in Patent Document 3 that uses a catalyst/adsorption method, oxygen removal and moisture removal are performed in a series column, so equipment is selected based on the moisture removal capacity, and the purification rate for oxygen and moisture is The problem is that it is difficult to remove water at the same time as it takes much longer to remove water than to remove oxygen. Additionally, the inert gas purification equipment that removes oxygen and moisture at the same time will also be shut down during the shutdown for maintenance, etc., so it will take time to return the inside of the glove box to a low dew point inert gas environment. There is a problem with too much. In this way, when oxygen removal is performed for the purpose of supplying an inert gas and moisture removal is also performed at the same time, conventional technology requires maintenance and adjustment of manufacturing equipment in a glove box or dry room. After the atmospheric break, which returns the gas environment to the atmospheric environment, it takes a long time to return to the inert gas environment, and as a result, it takes time to start up the manufacturing equipment line.

Therefore, the inventors developed a solution for storage containers such as glove boxes and dry rooms used for developing lithium-ion battery materials, etc., which require keeping the storage space clean with a low dew point and low active gas concentration. We have developed an inert gas purification device and a low dew point gas supply device that can be used. For example, in the dry room for gas replacement disclosed in Patent Document 4, an airtight container for storing manufacturing equipment used for OLED manufacturing and research and development is provided inside the drying room in which dry air from a dry air supply device is circulated. , an inert gas and a low dew point gas are supplied to this airtight container. In addition, the inert gas purification device and low dew point gas supply device are separated and placed in series in the circulation path of the airtight container, and a separate circulation path is provided to control each other independently. , moisture removal performance and oxygen removal performance can be adjusted individually. Furthermore, by circulating through a separately provided circulation path during the atmospheric break, the time required for the airtight container to return from the atmospheric environment to the inert gas environment after the atmospheric break can be significantly shortened. Since the supply of low dew point gas can be maintained while the supply of inert gas is stopped, the dew point in the airtight booth quickly reaches a low state even after an atmospheric break. In the dry room for gas replacement disclosed in Patent Document 4, a desiccant dehumidifier is used as a low dew point gas supply device to remove moisture, and the rotor has a honeycomb shape, so it has a large surface area, low pressure loss, and has a honeycomb wall. Since the honeycomb element is very thin and the adsorbed moisture diffuses quickly, adsorption and desorption occur instantaneously throughout the honeycomb element, which greatly shortens the time it takes to reach a predetermined moisture concentration in the dry room.

In addition, in the dry room for gas replacement disclosed in Patent Document 5, the drying chamber covering the airtight container described in Patent Document 4 and the dry air supply device for supplying and circulating dry air inside the drying chamber are omitted, and the dew point is low. A gas supply device and an inert gas purification device are connected to form an integrated unit, which simplifies the device, saves space, and simplifies the operating method compared to the dry room for gas replacement described in Patent Document 4. This is what we aimed for. As a result, by connecting the low dew point gas supply device (desiccant dehumidifier) and the inert gas purification device (nitrogen purification device) to form an integrated device, the gas replacement system saves space compared to Patent Document 4. This makes it possible to reduce the initial cost of piping, installation work, etc.

However, in not only Patent Document 3, but also Patent Documents 4 and 5, the inert gas purification apparatus fills an adsorption tower with metal catalyst pellets such as nickel catalyst, copper catalyst, platinum catalyst, etc. Oxygen is removed by reacting oxygen with a catalyst. This catalyst/adsorption method enables continuous operation by installing multiple adsorption towers, but it is difficult to handle large air volumes due to the significant increase in pressure loss caused by filling the adsorption towers with catalyst/adsorbent pellets, etc. The problem is that it is difficult to do so. Furthermore, due to the high pressure loss, it takes time to discharge moisture generated during regeneration operation of catalysts, adsorbent pellets, etc., so it is necessary to have a mechanism to promote moisture discharge using a vacuum pump, etc. There is a problem in that costs are added in addition to the system. In addition, the particles flow due to the gas flow and are worn out and damaged, which may cause problems such as generation of dust and increased pressure loss due to partial blockage of the packed bed. Furthermore, when using granules rather than pellets, it is advantageous in terms of performance and downsizing to make the particles smaller and increase the contact area with the processing gas, but the smaller the particles, the more Pressure loss becomes an issue, and the flow of the catalyst and adsorbent due to the gas flow is likely to be induced, making design difficult and making it difficult to apply to large-scale equipment.

In order to solve the above-mentioned problems, the present invention does not fill the adsorption tower used in the catalyst/adsorption method with catalyst/adsorbent pellets, etc., but instead uses a gas such as a catalyst or adsorbent that can separate oxygen or nitrogen. The main feature is that the honeycomb body supporting the separation member reduces pressure loss and can handle large air volumes.

According to the oxygen removal device of the present invention, by using a honeycomb body instead of the catalyst/adsorbent pellets filled in the adsorption tower used in the catalyst/adsorption method, pressure loss can be significantly reduced and large air volume can be handled. I can do it. That is, it is possible to supply gas from which oxygen has been removed at a large air volume. In addition, the amount of catalyst or adsorbent supported on the honeycomb body can be reduced compared to when using pellets or the like, so using a honeycomb body can achieve lower pressure loss with less catalyst and adsorbent usage. Moreover, it can exhibit the same performance as pellets, etc. That is, by supporting the catalyst or adsorbent on the honeycomb body, the catalyst or adsorbent can be used more efficiently than pellets or the like.

Furthermore, moisture generated during regeneration operation does not require operations such as depressurization, and can be discharged by gas replacement (gas flow during regeneration operation) without using pressure reduction means such as compressors or vacuum pumps. It is possible to reduce the performance of parts and components of the entire system. Further, due to the simple configuration, it is possible to downsize the oxygen removal device, and the power consumption can also be reduced.

FIG. 1 is an example of a flow when processing operations and regeneration operations are performed alternately in the oxygen removal apparatus of the present invention. FIG. 2 is an example of a flow in which processing operations and regeneration operations are performed simultaneously and continuously in the oxygen removal apparatus of the present invention. FIG. 3 is a graph showing a comparison of pressure loss between a pellet packed bed and a honeycomb body in which the adsorption tower heights are the same in the oxygen removal apparatus of the present invention. FIG. 4 is a schematic diagram of a case where a honeycomb body is applied as a honeycomb rotor in the oxygen removal device of the present invention, and FIG. FIG. 4(B) shows a disk-shaped rotor assembled as a fan-shaped block. FIG. 5 is a schematic diagram of the oxygen removal device of the present invention in which a honeycomb body is made into a fan-shaped block and assembled into a cylindrical rotor and applied as a honeycomb rotor. FIG. 6 is a graph showing the flow of gas in a booth incorporating a closed system flow path and the results of an oxygen removal experiment in Example 1 of the oxygen removal apparatus of the present invention.

EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing. Note that the present invention is not limited to the following embodiments and drawings.

FIG. 1 is an example of a flow when processing operations and regeneration operations are performed alternately in the oxygen removal apparatus of the present invention. Adsorption towers 5 and 6 are filled with honeycomb bodies 7 and 8, respectively. A gas separation member capable of separating oxygen or nitrogen in the processing gas 2 is supported on the honeycomb bodies 7 and 8 using a binder or the like. The processing operation is performed by passing the processing gas 2 through the honeycomb bodies 7 and 8, and the regeneration operation is performed using the regeneration gas 1. The gas flow path switching operation is performed using, for example, valves 9 to 16.

In the processing operation, valves 9, 11 are closed and valves 10, 12, 13, 14, 15, 16 are opened. By passing the treated gas 2 through the honeycomb body 7 filled in the adsorption tower 5 and the honeycomb body 8 packed in the adsorption tower 6, the gas separation member supported on the honeycomb bodies 7 and 8 separates the oxygen or Nitrogen is removed and the honeycomb body passing gas 4 is obtained. When the process gas 2 is air, for example, the gas 4 passing through the honeycomb body becomes oxygen-depleted air (nitrogen-enriched air) when oxygen is removed, and becomes oxygen-enriched air when nitrogen is removed.

On the other hand, in the regeneration operation, valves 10 and 12 are closed and valves 9, 11, 13, 14, 15, and 16 are opened. By passing the regenerated gas 1 through the honeycomb body 7 filled in the adsorption tower 5 and the honeycomb body 8 filled in the adsorption tower 6, the gas separation members supported on the honeycomb bodies 7 and 8 are regenerated, and the gas is exhausted as the exhaust gas 3. be done. For example, when the regeneration gas 1 is air and the gas separation member is an adsorbent such as activated carbon or zeolite, when oxygen is removed in the treatment operation, the exhaust gas 3 is desorbed with oxygen and becomes oxygen-enriched air. When nitrogen is adsorbed and removed, nitrogen is desorbed, resulting in nitrogen-enriched air.

In this manner, in the flow shown in FIG. 1, either the processing gas 2 or the regeneration gas 1 is caused to flow through the adsorption towers 5 and 6, and the processing operation and the regeneration operation are performed alternately. Although two adsorption towers are provided in FIG. 1, one or more adsorption towers may be provided.

In FIG. 2, the configuration is such that the processing operation and the reproduction operation are performed simultaneously and continuously. In the treatment operation, valves 10, 12, 13, 14 are opened. By passing the treated gas 2 through the honeycomb body 7 filled in the adsorption tower 5, the gas separation member supported on the honeycomb body 7 removes oxygen or nitrogen from the treated gas 2, and becomes the honeycomb body passing gas 4. . Meanwhile, at the same time, the other adsorption tower 6 performs a regeneration operation. In the regeneration operation, valves 9, 11, 18, 20 are opened. By passing the regeneration gas 1 through the honeycomb body 8 filled in the adsorption tower 6, the gas separation member supported on the honeycomb body 8 is regenerated, and the desorbed oxygen or nitrogen is exhausted as exhaust gas 3. In this way, when the adsorption tower 5 is undergoing a treatment operation and the adsorption tower 6 is undergoing a regeneration operation, the valves 15, 16, 17, and 19 are in a closed state. Conversely, when the processing operation and the regeneration operation are switched, and the regeneration operation is performed in the adsorption tower 5 and the treatment operation is performed in the adsorption tower 6, the valves 13, 14, 18, and 20 are closed, and the other valves are open. Become.

In this way, in the embodiment shown in Fig. 2, two adsorption towers are installed in parallel (two-tower type), and while the regeneration gas 1 is flowing through one adsorption tower to regenerate the honeycomb body, the other adsorption tower is regenerated. Processing gas 2 is passed through the column to remove oxygen or nitrogen. Note that the number of adsorption towers is not limited to two, and a plurality of adsorption towers may be provided. For example, a configuration may be adopted in which a flow path switching valve such as a four-way valve is used in FIG. 1 to perform the processing operation and the regeneration operation simultaneously as shown in FIG. 2 continuously.

In order to remove oxygen, the gas separation member supported on the honeycomb body may use at least one of an adsorbent that adsorbs oxygen, a catalyst that removes oxygen, and an adsorbent that adsorbs nitrogen. Examples of adsorbents that adsorb oxygen or nitrogen include zeolite, activated carbon, silica gel, mesoporous silica, and the like. When using a catalyst to remove oxygen, transition metal elements such as manganese, iron, cobalt, nickel, and copper, platinum group elements such as palladium, rhodium, ruthenium, and platinum, and other materials such as intermetallic compounds and composite metal oxides. (For example, LaMnO ₃ , LaFeO ₃ , NiMn ₂ O ₄ etc.) or a mixture thereof.

When supporting a gas separation member on a honeycomb body, the binder and manufacturing method are appropriately selected and prepared depending on the properties of the gas separation member, and the honeycomb body is immersed and supported in a slurry containing the gas separation member and the binder, for example. Alternatively, a sheet mixed or adhesive coated with the gas separation member may be corrugated to form a honeycomb, or clay containing the gas separation member may be pressed to form a honeycomb body.

Honeycomb bodies produced by the impregnation method or coating method are made by corrugating sheets such as inorganic and/or nonflammable sheets such as ceramic fiber paper and glass fiber paper, metal sheets, plastic sheets, and heat-resistant fiber nonwoven fabrics. It is laminated into blocks or wrapped into a cylinder (rotor). The cross-sectional shape of the honeycomb body is not limited to a waveform like the cross-section of a cardboard box, and may be triangular, trapezoidal, hexagonal, or other shapes as long as they do not pose a problem for gas ventilation. Honeycomb bodies have a low pressure loss even though the contact area is large, and are lightweight yet high in strength, so they can easily be made larger. In order to fill an adsorption tower with the honeycomb body, the honeycomb body is processed into a shape such as a block or a cylinder as appropriate so that gas can be vented through the cross section of the honeycomb.

FIG. 3 is a graph showing a comparison of pressure loss between a pellet packed bed and a honeycomb body in which the adsorption tower heights are the same in the oxygen removal apparatus of the present invention. In a pellet-filled bed, pressure loss increases rapidly when the gas flow rate exceeds a certain surface wind speed. Therefore, in order to process a large amount of air with a pellet-filled bed, it is necessary to take measures such as increasing the output of a blower or the like. In the area of surface wind speed where the pressure loss suddenly rises in the pellet packed bed, the pressure loss in the honeycomb body does not rise suddenly and maintains a low value. Therefore, it is shown that the honeycomb body has the ability to process a large amount of air.

Comparing the pressure loss of a honeycomb body with a pellet packed bed with adsorption towers of the same height, for example, the pressure loss of a honeycomb body with a face velocity of 1 m/s is reduced to one-fourth of the pressure loss of a pellet packed bed. For example, in the case of the catalyst used in this graph, the catalyst-supported honeycomb body can be produced with a catalyst weight of about 30% of the catalyst pellet, and the oxygen removal performance of the catalyst-supported honeycomb body having the same volume as the catalyst pellet is: It exhibits the ability to remove 99% or more of 100 ppm oxygen without requiring depressurization or other moisture discharge operations during regeneration.

In addition, in the flow of FIG. 1 and FIG. 2, the gas flow path is not limited to only the flow of the processing operation and the regeneration operation, but may be configured to include a plurality of flow paths, such as including a purge operation. The gas may be cooled or heated depending on the processing temperature or the regeneration temperature, or the honeycomb body, the adsorption tower itself, or the entire flow path may be cooled or heated. Further, the valve is not limited to this, and an air volume adjusting device such as a damper or a VAV (Variable Air Volume) may be used.

Rather than simply filling an adsorption tower with honeycomb bodies, as shown in FIGS. 4 and 5, the honeycomb rotor has at least a processing zone 23 and a regeneration zone 24, and the processing zone 23 is ventilated with the processing gas 2. The honeycomb body may be regenerated by removing oxygen or nitrogen from the processing gas and passing the heated regeneration gas 1 through the regeneration zone 24 and/or heating the honeycomb rotor as the honeycomb body. good.

The honeycomb rotor can be formed by winding a honeycomb body into a cylinder (rotor) shape to form a disk-shaped rotor 22 as shown in FIG. 4(A), or as a fan-shaped block 25 as shown in FIG. 4(B). It is assembled to form a disk-shaped rotor 22, and gas is vented in a direction perpendicular to the circumferential direction. Alternatively, as shown in FIG. 5, the honeycomb body may be made into a fan-shaped block 25, set in a cylindrical frame, and assembled into a cylindrical rotor 26, so that gas can be vented from the outer circumferential direction to the inner circumferential direction. In any case, a honeycomb rotor is installed in an apparatus that is divided and sealed into at least a processing zone 23 and a regeneration zone 24, and is continuously rotated. This allows continuous oxygen removal. Note that other zones such as a purge zone may be provided as necessary.

Example 1 of the oxygen removal device of the present invention will be described below with reference to FIG. 6. In Example 1, as in Patent Document 4 and Patent Document 5, a dry room for manufacturing displays and batteries is assumed, where the inside of the booth needs to be kept clean in an inert gas environment with a low dew point. After performing maintenance and adjustment of manufacturing equipment, when changing from an atmospheric environment to an inert gas environment with a low dew point, a nitrogen replacement operation is performed in which a relatively large amount of nitrogen is first supplied to replace the atmosphere in the booth 21 with nitrogen. When the oxygen concentration in the booth reaches, for example, 100 ppm, oxygen removal operation by the oxygen removal apparatus of the present invention is started.

The flow diagram in FIG. 6 is basically the same as that shown in FIG. 1, but a closed system flow path including a booth 21 is constructed, and the gas 4 passing through the honeycomb body in FIG. 1 is supplied to the booth as supply air SA. Return air RA from the booth 21 is used as the processing gas 2. The graph shown in FIG. 6 is a graph showing changes in the oxygen concentration within the booth 21 during the processing (oxygen removal) operation in this flow. According to this graph, by switching the passage flow path so that the gas in the booth 21 passes through the honeycomb bodies 7 and/or 8 carrying catalyst as RA, that is, the process gas, a large air volume (the volume of the booth 21 is 43 m It was shown that it has the ability to remove 99% or more of 100 ppm of oxygen ( ³ ).

In Example 1, a honeycomb body in which a metal catalyst containing copper was supported by a binder was used. As shown in the following equation, in the treatment operation in Example 1, copper reacts with oxygen and is oxidized to become copper oxide, thereby removing oxygen.
2Cu+O ₂ →2CuO
On the other hand, in the regeneration operation, hydrogen was passed through the honeycomb body as regeneration (reduction) gas 1 to reduce the catalyst. In this case, copper oxide reacts with hydrogen and is reduced, as shown in the following equation, and water is discharged. In addition, when using a catalyst pellet packed bed, this moisture comes from a high pressure loss, and it takes time to discharge the moisture generated during catalyst pellet regeneration operation, so a mechanism is provided to facilitate the discharge of moisture, such as a vacuum pump. There is a need. However, in the present invention, by using a honeycomb body, the pressure loss is significantly reduced, so there is no need for operations such as depressurization to promote the discharge of moisture, and the generated moisture can be discharged simply by flowing regeneration gas. Therefore, the number of parts and members for the entire system can be reduced.
2CuO+H ₂ →2Cu+H ₂ O

In Example 1, when the oxygen concentration in the booth reached an extremely low concentration of 100 ppm, oxygen removal using the honeycomb body was started, but the invention is not limited to this. 21% of the oxygen in the air may be removed, or other concentrations may be used.

As described above, the oxygen removal device of the present invention can be combined with a dehumidifier (low dew point gas supply device) as a nitrogen purifier (inert gas purification device), and can be combined with the dehumidifier described in Patent Document 5. It can be applied to both patterns, including an integrated type machine and a separated type dehumidifier and purifier described in Patent Document 4. Oxygen can be removed from gases containing various oxygen concentrations depending on the characteristics of the supported catalyst and adsorbent, and by using a nitrogen adsorbent, nitrogen can be removed from the air or from gases containing nitrogen and oxygen. By doing so, it is also possible to separate oxygen.

The present invention uses a honeycomb body, which can reduce pressure loss compared to conventional pellet packed beds, and enables high-performance oxygen removal with a small amount of catalyst or adsorbent. Therefore, it becomes possible to continuously remove oxygen from a large amount of gas, which was a problem with pellet-filled beds.

As the display and battery industries expand, there is a need for a larger capacity oxygen-free space for their production. If displays and batteries are manufactured in spaces where oxygen coexists, oxides will form on the surfaces of the materials, making it impossible to demonstrate their original potential. The development of the robot industry has played a role in the development of large-scale production of tasks that previously could only be performed within the reach of humans, such as glove boxes. Products manufactured in an oxygen-free space are ultimately used after being exposed to the atmosphere, so the switching time between the oxygen-free space and the atmosphere has a large effect on manufacturing speed. The oxygen removal device of the present invention, which enables nitrogen purification or oxygen removal with a large air volume, contributes to the creation of an oxygen-free space in a short time.

In addition, it is compatible with gases containing various oxygen concentrations, so for example, air can be used as a raw material to generate hypoxic air, which has a lower oxygen concentration than outside air, and this hypoxic air can be used, for example, for simulated high-altitude training. It can also be used as a training device for training.

1 Regeneration gas 2 Processing gas 3 Exhaust 4 Honeycomb body passing gas 5, 6 Adsorption tower 7, 8 Honeycomb body 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 Valve 21 Booth 22 Honeycomb rotor 23 Processing zone 24 Regeneration zone 25, 26 Block

Claims (6)

A honeycomb body supporting a gas separation member capable of separating oxygen or nitrogen in a processing gas. The honeycomb body according to claim 1, wherein the gas separation member comprises at least one of an adsorbent that adsorbs oxygen, a catalyst that removes oxygen, and an adsorbent that adsorbs nitrogen. The honeycomb body according to claim 1 or 2, wherein the honeycomb body is columnar or block-shaped. Filling an adsorption tower with the honeycomb body according to claim 1 or claim 2, removing oxygen or nitrogen in the process gas by ventilating the process gas through the honeycomb body, and ventilating the regeneration gas, An oxygen removal device for regenerating the honeycomb body and comprising at least one adsorption tower. 5. The oxygen removal apparatus according to claim 4, wherein the honeycomb body is regenerated by heating the regeneration gas and/or the honeycomb body. The honeycomb body according to claim 1 or 2 is a honeycomb rotor, and has at least a treatment zone and a regeneration zone, and the treatment zone is provided with a treatment gas that is ventilated to remove oxygen or nitrogen from the treatment gas. The oxygen removal apparatus is characterized in that the honeycomb body is regenerated by passing heated regeneration gas through the regeneration zone and/or heating the honeycomb rotor.

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