Method for filling a CO2 separation module for a CO2 separation device

Abstract

A method is provided for filling a CO2 separation module (10) for a CO2 separation device with a granular and / or fibrous CO2 separation agent (32) for separating CO2 from a supplied air stream (104), wherein the CO2 separation module (10) has at least one receiving chamber (16) for receiving the granular and / or fibrous CO2 separation agent (32), wherein the at least one receiving chamber (16) has a filling opening (34) and at least one fluid-permeable chamber wall (36), comprising the steps: - producing a suspension (33) comprising the granular and / or fibrous CO2 separation agent (32) and a liquid, in particular water; and - Filling the suspension (33) through the filling opening (34) into the at least one receiving chamber (16) in such a way that the liquid, in particular the water, flows out through the fluid-permeable chamber wall (36) and the at least one receiving chamber (16) is filled with the remaining granular and / or fibrous CO2 separation agent (32).

Description

State of the art

[0001] The invention relates to a method for filling a CO2 separation module for a CO2 separation device with a granular and / or fibrous CO2 separation agent for separating CO2 (carbon dioxide) from a supplied air stream, wherein the CO2 separation module has at least one receiving chamber for receiving the granular and / or fibrous CO2 separation agent, wherein the at least one receiving chamber (each) has a filling opening and at least one fluid-permeable chamber wall. The invention further relates to a CO2 separation module for a CO2 separation device for separating CO2 from a supplied air stream, having at least one receiving chamber filled with a granular and / or fibrous CO2 separation agent, which (each) has a filling opening and at least one fluid-permeable chamber wall.

[0002] In order to limit the warming of the Earth's atmosphere, so-called DAC systems (Direct Air Capture) are used to separate or remove CO2 (carbon dioxide) from the air.

[0003] WO 2020 / 212146 A1 discloses a DAC system with a container solution, wherein six separation chambers arranged in series and operable in parallel are provided inside the container.

[0004] US 2020 / 0391153 A1 describes a ribbed structure in which a space that can be filled with sorption materials for CO2 is traversed by heat exchanger lines.

[0005] To achieve small pressure losses, thin particle layers of sorption material are advantageous. To ensure these remain stationary, flat support structures are necessary, which makes filling difficult because particles or fibers - as is well known from silo mechanics - are difficult to "fill" into narrow gaps (silo effect, friction angle of bulk material).

[0006] Therefore, US 2022 / 0193598 A1 describes the possibility of filling such materials, for example, using mechanical agitation (known from silo technology). However, even mechanical agitation requires a certain amount of effort and cannot guarantee that a structure is filled without voids, especially if, for example, inserted heating elements, as described in US 2020 / 0391153 A1, additionally block the path of the particles.

[0007] Furthermore, it is extremely complex - especially when there are a large number of particle layers - to fill the ion exchange resins discussed in the literature for the separation of CO2 from air (such as Lewatit VP OC 1065) into such gaps, since ion exchange resins, although supplied dried and with instructions for dry handling, tend to stick and caking even in atmospheric humidity (see data sheets Lewatit VP OC 1065).

[0008] Experience has shown that if ion exchange resins are dried beforehand, they develop strong electrical charges and shrink in diameter, thus reducing their bulk density by 20%. Therefore, dry filling requires additional safety measures against static charge, and any further swelling of the ion exchange resins during operation must be structurally prevented to prevent the filled receiving chambers from being deformed or damaged by the swelling.

[0009] Fluidization with air is possible, but disproportionately complex and expensive. Disclosure of the invention

[0010] The present invention therefore relates to a method for filling a CO2 separation module for a CO2 separation device with a granular and / or fibrous CO2 separation agent for separating CO2 from a supplied air stream, wherein the CO2 separation module has at least one receiving chamber for receiving the granular and / or fibrous CO2 separation agent, wherein the at least one receiving chamber has a filling opening and at least one fluid-permeable chamber wall, comprising the steps: - producing a suspension comprising the granular and / or fibrous CO2 separation agent and a liquid, in particular water; and - Filling the suspension through the filling opening into the at least one receiving chamber in such a way that the liquid, in particular the water, flows out through the fluid-permeable chamber wall and the at least one receiving chamber is filled with the remaining granular and / or fibrous CO2 separation agent.

[0011] The present invention further relates to a CO2 separation module for a CO2 separation device for separating CO2 from a supplied air stream, with at least one receiving chamber filled with a granular and / or fibrous CO2 separation agent, which has a filling opening and at least one fluid-permeable chamber wall, wherein the filling of the at least one receiving chamber has been carried out according to a method described above.

[0012] As mentioned at the beginning, thin layers of a granular or particulate or fibrous or fiber-based CO2 separation agent are advantageous for a CO2 separation process or sorption process in order to minimize pressure losses, but at the same time they are difficult to realize due to the complex filling process.

[0013] According to the invention, a method for filling a CO2 separation module is proposed, in which a granular and / or fibrous CO2 separation agent, such as an ion exchange resin, is first (at least temporarily) suspended in a liquid during filling of the CO2 separation module, in particular slurried in water, and then this suspension is poured into the receiving chamber of the CO2 separation module. Since at least one chamber wall of the receiving chamber is fluid-permeable, the liquid can drain or flow away unhindered, with the granular and / or fibrous CO2 separation agent or ion exchange resin remaining in the receiving chamber.

[0014] Accordingly, the core of the invention is to use a liquid to fluidize the granular and / or fibrous CO2 separation agent during filling and to use the fluid-permeable chamber wall as a filter or sieve to filter out the suspended granular and / or fibrous CO2 separation agent from the liquid during filling.

[0015] According to the invention, a suspension comprising the granular and / or fibrous CO2 separation agent and a liquid is produced. The term "granular" within the scope of the present invention encompasses, among other things, particulate and / or grainy and / or spherical configurations. The term "fibrous" within the scope of the present invention encompasses, among other things, fiber-based and / or fibrous configurations, in particular with lengths greater than 10 times the diameter.

[0016] The granular and / or fibrous CO2 separation agent is designed to separate CO2 from a supplied air stream. The granular and / or fibrous CO2 separation agent can in particular comprise a granular and / or fibrous (correspondingly functionalized) sorbent, for example a granular and / or fibrous adsorbent and / or a granular and / or fibrous absorbent. The granular and / or fibrous CO2 separation agent is preferably designed for use in water. The granular and / or fibrous CO2 separation agent preferably comprises a granular and / or fibrous ion exchange resin or is preferably designed as a granular and / or fibrous ion exchange resin. The granular CO2 separation agent can, for example, comprise or consist of Lewatit VP OC 1065. The fibrous CO2 separation agent can, for example,Include or consist of zeolite X13, which is intended for use in air and is not damaged in water.

[0017] The liquid is preferably water. The advantage here is that water is omnipresent in the humid air during the sorption process and in the form of water vapor during the desorption process for years, so it does not interfere with the filling process or later in the CO2 capture device. However, the liquid can also be a solvent, in particular a solvent used for the production of the granular and / or fibrous CO2 capture agent.

[0018] Consequently, a combination or suspension comprising ion exchange resins and water is particularly advantageous, since ion exchange resins were developed for use in water and form dense fluidized packings there, which, however, can be easily moved due to the comparable density and the spherical design.

[0019] Furthermore, according to the invention, the suspension is filled through the filling opening or respective filling opening into the at least one receiving chamber in such a way that the liquid flows out through the fluid-permeable chamber wall or respective fluid-permeable chamber wall and the at least one receiving chamber is filled with the remaining granular and / or fibrous CO2 separation agent.

[0020] If the receiving chamber has another opening in addition to the filling opening through which the granular and / or fibrous CO2 separation agent could escape during filling, this opening is closed at least for the filling step by means of a closure element. The closure element is thus impermeable at least to the granular and / or fibrous CO2 separation agent. The closure element can be designed to be airtight. The closure element can be designed, for example, as a closed chamber wall, in particular a closed metal wall or metal plate. Preferably, however, the receiving chamber only has the filling opening, which is designed to be permeable to the granular and / or fibrous CO2 separation agent.

[0021] After the filling step, the (respective) filling opening is preferably closed by means of a (further) closure element, so that the granular and / or fibrous CO2 separation agent remains in the receiving chamber. The (further) closure element is thus impermeable at least to the granular and / or fibrous CO2 separation agent. The (further) closure element can be designed to be airtight. The (further) closure element can be designed, for example, as a closed chamber wall, in particular a closed metal wall or metal plate.

[0022] It is advantageous if the filling step is carried out until the at least one receiving chamber is substantially completely filled with the remaining granular and / or fibrous CO2 separation agent.

[0023] It is further advantageous if the filling step is carried out by means of a filling device, wherein the suspension is filled by means of at least one supply line and / or filling aperture through the respective filling opening into the at least one receiving chamber, in particular into several or all receiving chambers simultaneously.

[0024] It is also advantageous if, in the filling step, to support the filling process, - the at least one receiving chamber is moved, in particular shaken, and / or heated, and / or - a gas is blown into the suspension.

[0025] Furthermore, it is advantageous if, before the filling step, the CO2 separation module is rotated such that the filling opening(s) for the filling step point(s) upwards. It is further advantageous if the steps of generating and filling the suspension take place during production of the granular and / or fibrous CO2 separation agent, in particular wherein a washing step of the granular and / or fibrous CO2 separation agent takes place in the at least one receiving chamber. In other words, the granular and / or fibrous CO2 separation agent is advantageously washed directly into the CO2 separation module with the solvent during its production and, if necessary, is subsequently washed in the CO2 separation module, so that process steps can be saved or combined.

[0026] It is also advantageous if, after the filling step, the granular and / or fibrous CO2 separation agent remains undried in the at least one receiving chamber, in particular until the CO2 separation module is used in the CO2 separation device. Since the CO2 separation agent is dried during operation anyway during the desorption process, this measure eliminates the (separate) energy-intensive drying step of the CO2 separation agent during production. Furthermore, no drying system with protection against electrostatic charges needs to be installed in addition to the filling device.

[0027] It is further advantageous if, to replace the granular and / or fibrous CO2 separation agent, the CO2 separation module is immersed in a water basin and / or washed out with a water jet to remove the granular and / or fibrous CO2 separation agent from the at least one receiving chamber, and then the steps of generating and filling the suspension are performed again to refill the at least one receiving chamber. To remove the CO2 separation agent from the at least one receiving chamber, the CO2 separation module can also be rotated, for example, above or in the water basin, so that the filling openings point downward.

[0028] The CO2 separation module is designed for use in a CO2 separation device for separating CO2 from a supplied air stream by means of a CO2 separation process. Within the scope of the present invention, the term "separation" encompasses any reasonable type of separation or capture of CO2 (carbon dioxide) from the air, wherein a binding and / or adhesion and / or storage and / or absorption of CO2 molecules occurs on a CO2 separation agent.

[0029] In this case, the CO2 separation module or CO2 separation device can be designed, in particular, to separate the CO2 from the supplied air stream by means of a CO2 separation process, in which the separation occurs with the release of energy or heat to the air stream. The CO2 separation process preferably comprises a sorption process, in particular an adsorption process and / or an absorption process. Accordingly, the CO2 separation can be carried out, in particular, by means of at least one of the following methods or combinations thereof: - chemical adsorption process - physical adsorption process - chemical absorption process - physical absorption process

[0030] The CO2 separation module or CO2 separation device is further configured to release CO2 from the CO2 separation medium by means of a CO2 release process. Within the scope of the present invention, the term "release" encompasses any reasonable method of releasing or expelling CO2 (carbon dioxide) from the CO2 separation medium, whereby a dissolution and / or release and / or discharge of CO2 molecules from the CO2 separation medium occurs.

[0031] In this case, the CO2 separation module or the CO2 separation device is particularly designed to release or dissolve the CO2 from the CO2 separation agent by means of a CO2 release process in which the CO2 is released from the CO2 separation agent by introducing energy or heat into the latter.

[0032] The CO2 release process preferably includes a desorption process. Accordingly, the CO2 release can be carried out in particular by at least one of the following processes or combinations thereof: - chemical desorption process - physical desorption process

[0033] Preferably, the CO2 separation device is designed to perform the CO2 separation process and the CO2 release process cyclically. In this case, the CO2 separation device is particularly designed to perform the sorption process and the desorption process cyclically. The basic functionality of the CO2 separation module or the CO2 separation device can be implemented, for example, analogously to the aforementioned WO 2020 / 212146 A1, US 2020 / 0391153 A1, and US 2022 / 0193598 A1.

[0034] Within the scope of the present invention, the term "supply" or "supplied" primarily encompasses an actively carried out or initiated, and thus technically controlled or regulated, supply of the air flow by means of a blower unit or fan unit of the CO2 separation device. However, the term "supply" or "supplied" can also encompass a passively carried out or initiated supply of the air flow without departing from the scope of the present invention. Consequently, the air flow can be supplied in any desired manner, e.g., naturally (as wind). The CO2 separation module has at least one receiving chamber, preferably a plurality of receiving chambers, for receiving the granular and / or fibrous CO2 separation agent. Each receiving chamber preferably has a separate filling opening and at least one separate fluid-permeable chamber wall. Each receiving chamber preferably has a plurality of fluid-permeable chamber walls.The receiving chamber is preferably flat or layered. The filling opening is preferably narrow. The filling opening can be closable.

[0035] In this case, the receiving chamber can have, in one of its dimensions, e.g., a height, an amount of greater than or equal to 10 mm to less than or equal to 100 mm, preferably greater than or equal to 20 mm to less than or equal to 65 mm. The width can then be, for example, greater than or equal to 300 mm and less than or equal to 2000 mm, preferably greater than or equal to 500 mm and preferably less than or equal to 1500 mm. The filling opening can therefore comprise the complete cross-section of a receiving chamber, comprise the complete cross-section of the plurality of receiving chambers, or be designed as a smaller partial area of the aforementioned cross-sections.

[0036] The at least one fluid-permeable chamber wall is preferably impermeable to the granular and / or fibrous CO2 separation agent. The at least one fluid-permeable chamber wall is also preferably perforated, i.e., perforated, in particular as a perforated metal wall or perforated metal plate or expanded metal or woven wire mesh or metal mesh.

[0037] The CO2 separation module preferably further comprises at least one supply channel, which is fluidically connected to the at least one receiving chamber via the at least one fluid-permeable chamber wall in order to guide the air flow through the granular and / or fibrous CO2 separation agent. The supply channel can have a plurality of sub-channels. In this case, a plurality of supply channels can each form a supply channel layer. The supply channels of a supply channel layer can be separated by a corrugated air guide element, which is preferably perforated, in particular in the form of a perforated metal wall or perforated metal plate or expanded metal or woven wire mesh or metal knitted fabric. The supply channel or the supply channel layer can be designed to taper in the flow direction of the air flow.the supply channel layer is preferably closed at one end of the channel in the direction of flow of the air stream, but is not necessarily airtight.

[0038] The CO2 separation module preferably also has at least one discharge channel, which is fluidically connected to the at least one receiving chamber via the at least one fluid-permeable chamber wall in order to discharge the CO2-reduced air flow from the granular and / or fibrous CO2 separation agent. The discharge channel can have a plurality of sub-channels. In this case, a plurality of discharge channels can each form a discharge channel layer. The discharge channels of a discharge channel layer can be separated by a corrugated air guide element, which is preferably perforated, in particular in the form of a perforated metal wall or perforated metal plate or expanded metal or woven wire mesh or metal knitted fabric. The discharge channel or the discharge channel layer can be designed to widen in the flow direction of the CO2-reduced air flow.The discharge channel layer is preferably closed at the beginning of the channel in the flow direction of the CO2-reduced air flow, but is not necessarily airtight.

[0039] Advantageously, the at least one receiving chamber is arranged between the at least one supply channel or supply channel layer and the at least one discharge channel or discharge channel layer in such a way that the air flow from the at least one supply channel or supply channel layer can be guided through the at least one receiving chamber and the fluid-permeable chamber walls into the at least one discharge channel or discharge channel layer. In other words, the supply channel layer, the at least one receiving chamber, and the discharge channel layer form a sandwich-type layer arrangement.

[0040] The CO2 separation module preferably has a plurality of supply channel layers, a plurality of discharge channel layers, and a plurality of receiving chambers, which are arranged alternately and adjacent to one another in a vertical direction of the CO2 separation module. A receiving chamber is always arranged between a supply channel layer and a discharge channel layer. In other words, the supply channel layers, the receiving chambers, and the discharge channel layers form a stacked layer arrangement or a stack. The stack is preferably designed to be air-impermeable on an upper side and / or a lower side. This can be achieved, for example, by means of a corresponding coating and / or a closed stack wall, in particular a closed metal wall or metal plate.

[0041] The CO2 separation device preferably has at least one separation chamber for accommodating at least one CO2 separation module. The CO2 separation device further preferably has a plurality of separation chambers arranged one above the other and / or next to one another. The separation chambers can be operated in groups in parallel in the CO2 separation process and the CO2 release process. In other words, if one group of separation chambers is operating in the CO2 separation process, the other group of separation chambers can be operated in the CO2 release process, and vice versa.

[0042] The CO2 separation device can have a valve unit with a plurality of, in particular controllable, valves to close the separation chamber for the CO2 release process. The valve unit can have an inlet valve, which is arranged in an inlet channel for the supplied or sucked-in air flow and is designed to close the inlet channel and to isolate the separation chamber upstream. The valve unit can further have an outlet valve, which is arranged in an outlet channel for the CO2-reduced air flow and is designed to close the outlet channel and to isolate the separation chamber downstream. The valve unit can also have a CO2 valve, which is arranged in a CO2 discharge channel for discharging separated CO2 and is designed to open the CO2 discharge channel in order to specifically discharge the separated / bound and released CO2 from the separation chamber.The CO2 separation device may further comprise at least one of the following units:. - Blower unit, in particular with a plurality of fans for supplying the air flow; - Pump unit or vacuum pump for providing overpressure and / or negative pressure for the CO2 release process or desorption process; - Steam generator to provide steam for the CO2 release or desorption process; - electric heating unit for additional heating of the CO2 separation agent for the CO2 release or desorption process; - Sensor unit for the CO2 separation and CO2 release process; - Control unit for controlling and / or regulating the CO2 separation and CO2 release process.

[0043] The control unit can be designed to be connected to other control units and / or a central control unit of the CO2 separation device or a higher-level system by means of radio transmission such as Wi-Fi, Bluetooth, near-field communication, etc.

[0044] The CO2 separation device is preferably designed to be stationary. In particular, the CO2 separation device can be part of a building's air conditioning system, particularly integrated into an air conditioning system within a building. The separation chamber of the CO2 separation device can be integrated into the building's air conditioning circuit. Drawings

[0045] The invention is explained in more detail below with reference to the accompanying drawings. They show: Fig. 1 shows a basic structure of a CO2 separation device according to the prior art; Fig. 2 a perspective view of an embodiment of a CO2 separation module according to the invention; Fig. 3 a side sectional view of the CO2 separation module from Fig. 2; Fig. 4a-c representations of a sequence of a filling process; and Fig. 5 a flow diagram of a method according to the invention for filling a CO2 separation module for a CO2 separation device with a granular and / or fibrous CO2 separation agent.

[0046] In the following description of the prior art and preferred embodiments of the present invention, the same or similar reference numerals are used for the elements shown in the various figures and having a similar effect, whereby a repeated description of the elements is omitted.

[0047] Fig. Figure 1 shows a basic structure of a CO2 separation device 100 according to the prior art. The CO2 separation device 100 is designed to separate CO2 (carbon dioxide) from an air stream 104 supplied by a blower unit 102 using a cyclically performed sorption-desorption process.

[0048] For this purpose, the CO2 separation device 100 has a separation chamber 106 for accommodating a CO2 separation module (not shown) with a granular CO2 separation agent or granular sorbent. The separation chamber 106 has an inlet valve 108 on an inlet channel 110 for the sucked-in air stream 104, which is designed to close the inlet channel 110 and isolate the separation chamber 106 upstream. The separation chamber 106 further has an outlet valve 112 on an outlet channel 114 for the CO2-reduced air stream 104', which is designed to close the outlet channel 114 and isolate the separation chamber 106 downstream. The separation chamber 106 also has a CO2 valve 116, which is arranged in a CO2 discharge channel 118 and is designed to open the CO2 discharge channel 118 in order to discharge separated, ie sorbed and released again, ie desorbed CO2 and, if applicable.vaporous water from the separation chamber 106.

[0049] The separated CO2 and vaporous water are pumped out of the separation chamber 106 by means of a pump unit 120 or vacuum pump 120, wherein a water vapor condenser 122 arranged outside the separation chamber 106 is connected upstream of the vacuum pump 120.

[0050] The CO2 separation device 100 also has a heating and cooling unit 124 for heating and cooling the sorbent and a water vapor generation unit 126 arranged outside the separation chamber 106 for providing water vapor for the CO2 release process or desorption process.

[0051] Fig. 2 and Fig. 3 show an embodiment of a CO2 separation module 10 according to the invention, which can be used, for example, in the CO2 separation device 100 of Fig. 1, in a perspective view and in a sectional view. In the perspective view of Fig. 2 a front part of the CO2 separation module 10 is cut out to allow a better view of the interior of the CO2 separation module 10. The sectional view from Fig. 3 illustrates the flow paths of the air stream 104, 104'.

[0052] The CO2 separation module 10 comprises a stacked layer arrangement or stack of supply channel layers 12, discharge channel layers 14, and receiving chambers 16, which are arranged alternately and adjacent to one another in a vertical direction 18. A receiving chamber 16 is always arranged between each supply channel layer 12 and each discharge channel layer 14.

[0053] The supply channel layers 12 each have a plurality of supply channels 22 separated by a corrugated air guide element 20, which are tapered in the vertical direction 18 in the flow direction of the air flow 104. The supply channel layers 12 are closed at a channel end 24 in the flow direction of the air flow 104. The corrugated air guide elements 20 are formed as perforated expanded metal.

[0054] The discharge channel layers 14 each have a plurality of discharge channels 28 separated by a corrugated air guide element 26, which are designed to widen in the vertical direction 18 in the flow direction of the CO2-reduced air flow 104'. The discharge channel layers 14 are designed to be closed at a channel beginning 30 in the flow direction of the CO2-reduced air flow 104'. The corrugated air guide elements 26 are designed as perforated expanded metal.

[0055] The receiving chambers 16 are filled with a CO2 separation agent 32 or sorbent 32, which in the illustrated embodiment is designed as a granular ion exchange resin 32. For illustrative reasons, however, only one receiving chamber 16 is shown filled. The receiving chambers 16 are furthermore flat or layered and each have a likewise narrow filling opening 34 through which the granular ion exchange resin 32 - as in Fig. 4a-c is shown in more detail - was filled by means of a method according to the invention.

[0056] Each receiving chamber 16 also has a fluid-permeable chamber wall 36, which is formed as a perforated expanded metal that is impermeable to the granular ion exchange resin 32. The fluid-permeable chamber wall 36 of a receiving chamber 16 is arranged on one chamber side adjacent to a supply channel layer 12, such that the plurality of respective supply channels 22 are fluidly connected to the respective receiving chamber 16 via the fluid-permeable chamber wall 36 in order to guide the air flow 104 through the granular ion exchange resin 32. Similarly, the fluid-permeable chamber wall 36 is arranged on an opposite chamber side adjacent to a discharge channel layer 14, such that the plurality of respective discharge channels 28 are fluidly connected to the receiving chamber 16 via the fluid-permeable chamber wall 36 in order to discharge the CO2-reduced air flow 104' from the granular ion exchange resin 32.

[0057] In Fig. 4a-c is now a sequence of a filling process of the CO2 separation module 10 from Fig. 2 and Fig. 3. According to the invention, a suspension 33 comprising the granular ion exchange resin 32 to be filled and water is first produced. As can be seen from Fig. As can be seen in Figure 4a, the CO2 separation module 10 has a closure element 40 on a side 38 opposite the filling openings 34, which closure element is designed as a closed metal plate 40 to close openings (not shown) of the receiving chambers 16 on this side 38 through which the granular ion exchange resin 32 could escape during filling. Furthermore, the CO2 separation module 10 has a further closed metal plate 44 on a top side 42 to achieve airtightness on the top side 42 as well.

[0058] Then, as in Fig. 4b, the CO2 separation module 10 is rotated such that the filling openings 34 point upwards, so that the suspension 33 can be filled into the receiving chambers 16 through the upwardly facing filling openings 34 such that the water flows out through the fluid-permeable chamber walls 36 and the receiving chambers 16 are completely filled with the remaining granular ion exchange resin 32.

[0059] Finally, the filled CO2 separation module 10 is returned to its installation position or rotated, wherein the filling openings 34 are previously closed by means of a further closure element 46, which is designed as a closed metal plate 46, so that the granular ion exchange resin 32 remains in the receiving chambers 16.

[0060] Fig.5 shows a flow diagram of a method 200 according to the invention for filling a CO2 separation module 10 for a CO2 separation device 100 with a granular and / or fibrous CO2 separation agent 32 for separating CO2 from a supplied air stream 10, wherein the CO2 separation module 10 has at least one receiving chamber 16 for receiving the granular and / or fibrous CO2 separation agent 32, wherein the at least one receiving chamber 16 has a filling opening 34 and at least one fluid-permeable chamber wall 36. The method 200 comprises a step of generating 202 a suspension 33 comprising the granular and / or fibrous CO2 separation agent 32 and a liquid, in particular water.The method 200 further comprises a step of filling 204 the suspension 33 through the filling opening 34 into the at least one receiving chamber 16 such that the liquid, in particular the water, flows out through the fluid-permeable chamber wall 36 and the at least one receiving chamber 16 is filled with the remaining granular and / or fibrous CO2 separation agent 32.

[0061] If an embodiment includes an “and / or” link between a first feature and a second feature, this should be read as meaning that the embodiment according to one embodiment includes both the first feature and the second feature and according to another embodiment includes either only the first feature or only the second feature. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] WO 2020 / 212146 A1 [0003, 0033] US 2020 / 0391153 A1 [0004, 0006, 0033] US 2022 / 0193598 A1 [0006, 0033]

Claims

[1] Method (200) for filling a CO2 separation module (10) for a CO2 separation device (100) with a granular and / or fibrous CO2 separation agent (32) for separating CO2 from a supplied air stream (104), wherein the CO2 separation module (10) has at least one receiving chamber (16) for receiving the granular and / or fibrous CO2 separation agent (32), wherein the at least one receiving chamber (16) has a filling opening (34) and at least one fluid-permeable chamber wall (36), comprising the steps: - producing (202) a suspension (33) comprising the granular and / or fibrous CO2 separation agent (32) and a liquid, in particular water; and - filling (204) the suspension (33) through the filling opening (34) into the at least one receiving chamber (16) such that the liquid, in particular the water, flows out through the fluid-permeable chamber wall (36) and the at least one receiving chamber (16) is filled with the remaining granular and / or fibrous CO2 separation agent (32). [2] Method (200) according to claim 1, characterized by that the filling step (204) is carried out until the at least one receiving chamber (16) is substantially completely filled with the remaining granular and / or fibrous CO2 separation agent (32). [3] Method (200) according to claim 1 or 2, characterized bythat the filling step (204) is carried out by means of a filling device, wherein the suspension (33) is filled by means of at least one supply line and / or filling aperture through the filling opening (34) into the at least one receiving chamber (16), in particular into several or all receiving chambers (16) simultaneously. [4] Method (200) according to one of the preceding claims, characterized by that in the filling step (204) to support the filling process further - the at least one receiving chamber (16) is moved, in particular shaken, and / or heated, and / or - a gas is blown into the suspension (33). [5] Method (200) according to one of the preceding claims, characterized by that before the filling step (204) the CO2 separation module (10) is rotated such that the filling opening (34) for the filling step (204) points upwards. [6] Method (200) according to one of the preceding claims, characterized by that the steps of producing (202) and filling (204) the suspension (33) take place during production of the granular and / or fibrous CO2 separation agent (32), in particular wherein a washing step of the granular and / or fibrous CO2 separation agent (32) takes place in the at least one receiving chamber (16). [7] Method (200) according to one of the preceding claims, characterized by that after the filling step (204) the granular and / or fibrous CO2 separation agent (32) remains undried in the at least one receiving chamber (16), in particular until the CO2 separation module (10) is used in the CO2 separation device (100). [8] Method (200) according to one of the preceding claims, characterized bythat the granular and / or fibrous CO2 separation agent (32) comprises a granular and / or fibrous ion exchange resin (32), in particular is designed as a granular and / or fibrous ion exchange resin (32), and / or the liquid is a solvent. [9] Method (200) according to one of the preceding claims, characterized by that the at least one fluid-permeable chamber wall (36) is impermeable to the granular and / or fibrous CO2 separation agent (32) and in particular is further perforated. [10] Method (200) according to one of the preceding claims, characterized byin that, in order to change the granular and / or fibrous CO2 separation agent (32), the CO2 separation module (10) is immersed in a water basin and / or washed out by means of a water jet in order to remove the granular and / or fibrous CO2 separation agent (32) from the at least one receiving chamber (16), and then the steps of generating (202) and filling (204) the suspension (33) are carried out again in order to refill the at least one receiving chamber (16). [11] CO2 separation module (10) for a CO2 separation device (100) for separating CO2 from a supplied air stream (104), with at least one receiving chamber (16) filled with a granular and / or fibrous CO2 separation agent (32), which has a filling opening (34) and at least one fluid-permeable chamber wall (36), characterized bythat the filling of the at least one receiving chamber (16) has been carried out according to a method (200) according to one of the preceding claims. [12] CO2 separation module (10) according to claim 11, characterized by at least one supply channel (22) which is fluidically connected to the at least one receiving chamber (16) via the at least one fluid-permeable chamber wall (36) in order to guide the air flow (104) through the granular and / or fibrous CO2 separation means (32). [13] CO2 separation module (10) according to claim 11 or 12, characterized by at least one discharge channel (28) which is fluidically connected to the at least one receiving chamber (16) via the at least one fluid-permeable chamber wall (36) in order to discharge the CO2-reduced air stream (104') from the granular and / or fibrous CO2 separation means (32). [14] CO2 separation module (10) according to claims 12 and 13, characterized bythat the at least one receiving chamber (16) is arranged between the at least one supply channel (22) and the at least one discharge channel (28) in such a way that the air flow (104) can be guided from the at least one supply channel (22) through the at least one receiving chamber (16) and the fluid-permeable chamber walls (36) into the at least one discharge channel (28). [15] CO2 separation module (10) according to one of claims 11 to 14, characterized by that the at least one fluid-permeable chamber wall (36) is impermeable to the granular and / or fibrous CO2 separation agent (32) and in particular is further perforated.

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