NL2033081B1

NL2033081B1 - A greenhouse for cultivating plants in an interior space thereof and a method for climate control in a greenhouse

Info

Publication number: NL2033081B1
Application number: NL2033081A
Authority: NL
Inventors: Johannes Voermans Joseph; Hubertus Emanuel Maria Malschaert Petrus; La Crois Michel
Original assignee: Maurice Kassenbouw B V
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2024-03-26

Abstract

A greenhouse for cultivating plants in an interior space thereof, comprising an air ventilation system provided with an inlet channel for providing air from outside the greenhouse into the interior space and an outlet channel for exhausting air from the greenhouse originating from the interior space, wherein the greenhouse is further provided with a CO; process unit comprising: - a CO; capture section arranged for capturing CO; from air exhausted from the interior space, wherein the CO; capture section is connected for fluid flow with the outlet channel; - a CO; storage section arranged for storing the CO; captured from the air exhausted from the interior space and connected for fluid flow with the CO; capture section; and - a CO; recovery section arranged for recovering the CO; stored in the storage section and connected for fluid flow with the CO; storage section, wherein the CO; recovery section comprises a CO; gas outlet for exhausting CO; recovered by the CO; recovery section to the interior space; and - a CO; solvent arranged for capturing and/or storing the CO;; - a first pressure device arranged for circulating the CO; solvent between the CO; capture section and the CO; storage section; - a second pressure device arranged for circulating the CO; solvent between the CO; storage section and the CO; recovery section. A method for climate control in a greenhouse.

Description

Title: A greenhouse for cultivating plants in an interior space thereof and a method for climate control in a greenhouse

Description:

According to a first aspect, the present disclosure relates to a greenhouse for cultivating plants in an interior space thereof.

According to a second aspect, the present disclosure relates to a method for climate control in a greenhouse.

Such a system for climate control in closed or semi-closed greenhouses is known from WO2018/034570. In this document, a relative complicated system is disclosed for increasing the CO: concentration in the air of greenhouses in order to obtain faster growth rates of the plants within the greenhouse.

Growing plants will absorb CO: and plants growing in a closed or confined area, for example, in an interior space of a greenhouse, may significantly reduce the CO: in the air in such areas. Reduction of the CO: concentration in the air will result and this will slow down plant growth. The concentration of CO: in the atmosphere is about 400 ppm on a volume basis. Reduction of the CO: concentration in the interior space of the greenhouse well below 400 ppm may happen very fast, within hours or minutes depending on multiple factors, such as the type of plants and/or volume of the area in which the plants are being grown. In order to improve plant growth, it is therefore important to control the atmosphere surrounding the plants and to increase and/or maintain the CO: concentration of the greenhouse air to 600 ppm.

The system of WO2018/034570 comprises two adsorption units that are used alternately, wherein in one unit dry and cold ambient air with a relatively high CO: concentration flows through a bed containing CO:-adsorbing material. The air is depleted in CO: and may be released to the outside of the greenhouse into the ambient air. In the other unit, heated air with a relatively low CO: concentration flows through a CO:-containing bed where CO: is desorbed. The CO:-enriched air is used in the greenhouse. A drawback of the system of WO2018/034570 is that the applied solid adsorbents, such as zeolites, are not very selective towards CO: and have a relatively high affinity for H2O. This requires sufficient drying of the airflow and/or H2O adsorption and desorption steps, which are expensive and undesirable when using such a system in a greenhouse. For controlling the humidity within the greenhouse and preventing condensation of water onto the plant leaves, which increases the risk of fungal diseases, the ambient air introduced into the greenhouse of WO2018/034570 is chilled and dehumidified by means of chilled water from a cooling loop comprising a heat pump. Despite this dehumidification step, the CO. adsorption column requires an additional zeolite bed for adsorbing the H2O. Accordingly, there is a need for a system for climate control in a greenhouse which is relatively insensitive to the humidity of the air and which system is less complicated and/or less expensive.

Known greenhouses as described in NL1037152 and NL2006774 use air circulation systems that extract fresh, ambient air from outside the greenhouse. The purpose is to better control the humidity of the air in the interior space of the greenhouse, as a too high humidity may have a negative impact on plant growth. In such systems, the inlet in the interior space of the greenhouse of fresh, ambient air also increases the CO: concentration in the air inside the interior space of the greenhouse up to the standard CO: concentration in the atmosphere of approximately 400 ppm. However, to even further improve plant growth, increased concentrations of

CO: are desirable.

For enhanced CO: concentrations, for example up to 600 ppm, CO: must be supplied from external sources to the known greenhouses. Commonly, CO: is supplied from the burning of fossil fuels (flue gas), which is undesirable with respect to the global climate issues caused by the increased CO: concentration in the earth atmosphere. Accordingly, there is a need for a system for climate control in a greenhouse wherein the additional CO; supplied to the greenhouse is obtained from another source and not from burning fossil fuels.

An objective of the present disclosure is to provide a greenhouse having an improved system for controlling the CO:, and preferably the H:O concentration, in the interior space of the greenhouse for growing plants, wherein the system is relatively simple, relative inexpensive and/or is relatively easily added to existing greenhouses.

This objective is achieved by a greenhouse for cultivating plants in an interior space thereof, comprising an air ventilation system provided with an inlet channel for providing air from outside the greenhouse into the interior space and an outlet channel for exhausting air from the greenhouse originating from the interior space, wherein the greenhouse is further provided with a CO: process unit comprising: - a CO: capture section arranged for capturing CO: from air exhausted from the interior space, wherein the CO: capture section is connected for fluid flow with the outlet channel; - a CO: storage section arranged for storing the CQO; captured, by the CO: capture section, from the air exhausted from the interior space and connected for fluid flow with the CO: capture section; and - a CO: recovery section arranged for recovering the CO: stored in the storage section and connected for fluid flow with the CO: storage section, wherein the CO: recovery section comprises a CO; gas outlet for exhausting CO: recovered by the CO: recovery section to the interior space; and - a CO: solvent arranged for capturing and/or storing the CO:; - a first pressure device arranged for circulating the CO: solvent between the

CO: capture section and the CO: storage section; - a second pressure device arranged for circulating the CO: solvent between the

CO: storage section and the CO: recovery section.

By using a CO: solvent, advantageously the CO: process unit may be fed and operated with air exhausted from the interior space. Furthermore, the additional CO: for the increased CO: concentration in the air used for cultivating plants is obtained from air exhausted from the interior space and not from burning fossil fuels.

In an embodiment, for the CO; solvent an aqueous solution is chosen of an alkanolamine or an amino acid salt. It has been found that by using alkanolamine or amino acid salts, CO: is very well, in a stable manner, absorbed in the CO: solvent.

Furthermore, by using an aqueous solution, the high water content in the air exhausted from the interior space is not hampering the CO: absorption into the CO: solvent.

Very good results have been obtained by choosing the amino acid salt from sodium or potassium salts of Glycine (Gly), Threonine (Thr), Asparagine (Asp),

Glutamine (Glu), Proline (Pro), Lysine (Lys), Phenylalanine (Phe), Taurine (Tau),

Alanine (Ala), Sarcosine (Sar), Arginine (Arg). It has been found, that CO: is very well, in a stable, reversible manner, absorbed in aqueous solutions of these amino acid salts, while at the same time CO: can be easily desorbed providing a CO: gas.

In another embodiment, the CO: recovery section comprises an electrodialysis cell with an anode and a cathode for recovering and releasing the absorbed CO: from the CO: solvent by means of electrodialysis. It has been found, that the absorbed CO: is easily desorbed by means of electrodialysis, providing gaseous CQ», which can be recycled to the greenhouse for increasing the CO: concentration in the air originating from outside the greenhouse.

Preferably, the electrodialysis cell comprises a membrane, in particular an ion- exchange membrane or a bipolar membrane. The absorbed CO: in the form of an anion, like HCO: of CO3? travels from the CO: solvent through the membrane, driven by the electric field applied by the anode and the cathode, and forms H2CO: (ag) and gaseous substantially pure CO: on the other side of the membrane.

In another embodiment, the greenhouse comprises a heat exchanger arranged for exchanging heat between the inlet channel and the outlet channel. With this heat exchanger heat from the greenhouse is recovered and not released into the atmosphere resulting in lower heating costs for the greenhouse, in particular in winter when the ambient temperature may be relative low.

Preferably, the heat exchanger is arranged such that air exhausted from the interior space passes the heat exchanger, via the outlet channel, before the air exhausted from the interior space is received by the CO: capture section. This allows for more heat from the greenhouse to be recovered and not to be released into the atmosphere resulting in even lower heating costs for the greenhouse, in particular in winter when the ambient temperature is low.

Moreover, a relative low temperature of the air exhausted from the interior 5 space when entering the CO: capture section is beneficial for avoiding, or at least significantly reducing condensation of water, originating from the air exhausted from the interior space, in the CO: capture section.

In another embodiment, the CO: capture section is provided with a capture air inlet arranged for receiving the air exhausted from the interior space and a capture air outlet arranged for exhausting the air exhausted from the interior space from the CO: process unit. In this way, additional CO: for the increased CO: concentration in air used for cultivating plants is obtained from the air exhausted from the interior space before the air exhausted from the interior space is released into the atmosphere, such that less CO: is released into the atmosphere and no or only a relative low amount of

CO: is needed from burning fossil fuels.

In yet another embodiment, the greenhouse further comprises: - a measurement system arranged for measuring a concentration of CO: in the interior space; and - a control unit, communicatively coupled to the measurement system, the first pressure device and/or the second pressure device, and arranged for controlling the first pressure device and/or the second pressure device for maintaining the concentration of CO: in the interior space within a predetermined range, preferably for maintaining the concentration of CO: in the interior space constant.

By controlling the CO: concentration in the air flowing into the interior space of the greenhouse, a greenhouse with a more controllable atmosphere is obtained.

In this regard, it is beneficial if the control unit is arranged for receiving, from the measurement system, measurement data related to the concentration of CO: measured by the measurement system and wherein the control unit is further arranged for maintaining the concentration of CO: in the interior space within the predetermined range, preferably for maintaining the concentration of CO: in the interior space constant taking into account the measurement data received.

According to the second aspect, the present disclosure relates to a method for climate control in a greenhouse according to any one of the preceding claims, the method comprising the steps of: - providing, by the air ventilation system, air from outside the greenhouse into the interior space; - exhausting, by the air ventilation system, air from the greenhouse originating from the interior space; - capturing, by the CO: solvent in the CO: capture section, CO, from the air exhausted from the interior space; - storing, by the CO: solvent in the CO: storage section, the CO: captured, by the CO: capture section, from the air exhausted from the interior space; and - recovering, from the CO: solvent in the CO: recovery section, CO; stored in the storage section; - exhausting, via the CO: gas outlet, CO: recovered by the CO: recovery section to the interior space; - circulating, by the first pressure device, the CO: solvent between the CO: capture section and the CO; storage section; - circulating, by the second pressure device, the CO: solvent between the CO: storage section and the CO; recovery section.

Embodiments of the greenhouse according to the first aspect correspond to or are similar to embodiments of the method according to the second aspect of the present disclosure.

Effects of the greenhouse according to the first aspect correspond to or are similar to effects of the method according to the second aspect of the present disclosure.

Preferably, during the step of recovering, the CO: is recovered from the CO: solvent by means of electrodialysis. It has been found, that the absorbed CO: is easily desorbed by means of electrodialysis, providing gaseous CO», which can be recycled to the greenhouse for increasing the CO: concentration in the air originating from outside the greenhouse.

In an embodiment, the method further comprises the step of exchanging, by the heat exchanger, heat between the inlet channel and the outlet channel. With this step of exchanging heat by the heat exchanger, heat from the greenhouse is recovered and not released into the atmosphere resulting in lower heating costs for the greenhouse, in particular in winter when the ambient temperature is low.

Preferably, the step of exchanging heat is performed before the step of capturing. Exchanging heat before the step of capturing CO: from the air exhausted from the interior space allows for more heat from the greenhouse to be recovered and not to be released into the atmosphere resulting in even lower heating costs for the greenhouse, in particular in winter when the ambient temperature may be relative low.

Moreover, a relative low temperature of the air exhausted from the interior space when entering the CO: capture section is beneficial for avoiding, or at least significantly reducing condensation of water, originating from the air exhausted from the interior space, in the CO: capture section.

In another embodiment, the temperature of the CO: solvent in the CO: capture section is higher than the temperature of the air exhausted from the interior space at the position of the capture air inlet. This is beneficial for avoiding, or at least significantly reducing condensation of water, originating from the air exhausted from the interior space, in the CO: capture section.

In yet another embodiment, the method further comprises the steps of: - measuring, by the measurement system, a concentration of CO: in the interior space; and - controlling, by the control unit, the first pressure device and/or the second pressure device for maintaining the concentration of CO2 in the interior space within a predetermined range, preferably for maintaining the concentration of CO: in the interior space constant.

By controlling the CO; concentration in the air flowing into the interior space of the greenhouse, a greenhouse with a more controllable atmosphere is obtained.

In this regard, it is advantageous if the control unit is arranged for receiving, from the measurement system, measurement data related to the concentration of CO. measured by the measurement system and wherein, during the step of controlling, the control unit controls the first pressure device and/or the second pressure device for maintaining the concentration of CO; in the interior space within the predetermined range, preferably for maintaining the concentration of CO. in the interior space constant taking into account the measurement data received.

The present disclosure will now be explained by means of a description of embodiments of a greenhouse for cultivating plants in an interior space thereof according to the present disclosure and a method according to the present disclosure, in which reference is made to the following schematic figures, in which:

Fig. 1: a top view of a state of the art system for climate control in a greenhouse is shown;

Fig. 2: a cross-sectional view along line A-A of Fig. 1 is shown;

Fig. 3: a top view of a system for climate control in a greenhouse according to the present disclosure is shown;

Fig. 4: a top view of a part of a system for climate control in a greenhouse according to the present disclosure is shown;

Fig. 5: a flowchart of a system for climate control in a greenhouse according to the present disclosure is shown;

Fig. 6: a method according to the present disclosure is shown.

A well-known greenhouse 1 for cultivating plants 20 in an interior space 11 thereof is shown in Fig. 1 and Fig. 2. The greenhouse 1 comprises an air ventilation system 2 provided with an inlet channel having an opening 3 and a further opening 5 for providing air from outside the greenhouse 1 into the interior space 11 and an outlet channel having an opening 4 and a further opening 8 for exhausting air from the greenhouse 1 originating from the interior space 11. In the embodiment shown, the greenhouse 1 comprises an air circulation assembly 10 comprising pressure means 12, such as a ventilator, connected to air channels 13 extending through the greenhouse 1 for distributing air from outside the greenhouse 1 between plants 20 in the greenhouse 1. However, other types of circulation assemblies or air circulation methods may be used. The system as shown in Fig. 1 and Fig. 2 further comprises a

CO: supply outlet 41 that supplies CO: from an external CO: supply source 40. This well-known system has the disadvantage that the external CO: supply usually originates from burning fossil fuels.

A cross-sectional view along line A-A is shown in Fig. 2. Air flow is indicated by arrows. It shows how air from outside the greenhouse 1 enters the air ventilation system 2 via the opening 3 of the inlet channel. The air then flows into the greenhouse 1 via the further opening 5 of the inlet channel and is mixed with circulating air from the interior space 11 and CO: gas from the external CO: supply source 40 that enters the greenhouse 1 via the CO: supply outlet 41. The resulting air mixture is forced by the pressure means 12 through the air channels 13 and flows between the plants 20 and then circulates, usually via an upper part of the interior space 11, to the inlet of the pressure means. A part of the air from the interior space 11 is ventilated from the interior space 11 and enters the air ventilation system 2 via the opening 4 of the outlet channel and exits the air ventilation system 2 via the further opening 6 of the outlet channel into the atmosphere outside the greenhouse 1.

Another part of the air from the interior space 11 flows from the upper part of the interior space 11 downwards and is forced through the air channels 13 again by the pressure means 12, thereby being mixed with air from outside the greenhouse 1 that entered the interior space 11 of the greenhouse 1 via the inlet channel of the air ventilation system 2 and with CO: gas that entered the interior space 11 of the greenhouse 1 via the CO: supply inlet 41.

A top view of a greenhouse 101 for cultivating plants 20 in an interior space 11 thereof according to the present disclosure is shown in Fig. 3. It differs from the greenhouse 1 as shown in Fig. 1 in that it instead of the external CO: supply source 40 comprises a CO: process unit 30. The greenhouse 101 shown in Fig. 3 further comprises a measurement system 49 arranged for measuring the CO: concentration in the interior space 11 and a control unit 51, which is communicatively coupled with the measurement system 49, the first pressure device 45 and/or the second pressure device 47, arranged for controlling the first pressure device 45 and/or the second pressure device 47 for maintaining the concentration of CO: in the interior space 11.

Elements of greenhouse 101 that are similar or identical to elements of greenhouse 1 are provided with identical reference numerals.

The CO: process unit 30 comprises a CO; capture section 31, a CO: storage section 32 and a CO: recovery section 33, wherein the CO: capture section 31 is provided with a capture air inlet 34 arranged for receiving the air exhausted from the interior space 11 and a capture air outlet 35 arranged for exhausting the air exhausted from the interior space 11 from the CO: process unit 30, and wherein the CO, recovery section 33 has a CO; gas outlet 36. The further opening 6 of the outlet channel is connected to the capture air inlet 34 of the CO; capture section 31 of the CO: process unit 30 and the CO: gas outlet 36 of the CO: recovery section 33 is connected to the

CO: supply outlet 41, so that CO: in the air exhausted from the interior space 11 is recycled and mixed with air from outside the greenhouse 1 in the interior space 11.

In Fig. 4 is shown a top view of a part of a greenhouse 101 for cultivating plants 20 in an interior space 11 thereof according to the present disclosure. Air from the interior space 11 flows through the opening 4 of the inlet channel into the air ventilation system 2 and exits the air ventilation system 2 via the further opening 6 of the outlet channel and enters the CO: capture section 31 of the CO: process unit 30 via the capture air inlet 34. A CO: solvent 37 is used in the CO: process unit 30 for capturing/absorbing, storing and recovering CO:. The solvent 37 captures or absorbs

CO: from the air from the interior space 11 in the CO: capture section 31 and the solvent 37 containing absorbed CO: flows to the CO: storage section 32. CO: is recovered from the CO: solvent 37 in the CO: recovery section 33. CO: solvent 37 flows back from the CO: storage section 33 and/or the CO: recovery section 33 to the

CO: capture section 31. The air exits the CO: process unit 30 via the capture air outlet

35 into the atmosphere outside of the greenhouse 101. Recovered CO: gas exits the

CO: process unit 30 via the CO; gas outlet 36 and enters the greenhouse 101 via CO: supply outlet 41.

Fig. 5 shows a flow diagram of the greenhouse 101. The flow diagram shows that air from outside the greenhouse 101 flows into the air ventilation system 2 via the opening 3 of the inlet channel. The air passes through a heat exchanger 7 and exits the air ventilation system 2 via the further opening 5 of the inlet channel. In the heat exchanger 7 heat is recovered from air exhausted from the interior space 11 of the greenhouse 101 by transferring the heat to the flow of air from outside the greenhouse 101 entering the ventilation system 2 and subsequently the interior space 11 of the greenhouse 101. The air from outside the greenhouse 101 is mixed with CO: gas and air circulating in the interior space 11. The mixture enters the greenhouse air circulation assembly 10 via the pressure means 12 and flows via the air channels 13 over the plants 20. Part of the flow of air in the interior space 11 is ventilated via the opening 4 of the outlet channel through the heat exchanger 7 and via the further opening 6 of the outlet channel to the CO: process unit 30. The air exhausted from the interior space 11 enters the CO: capture section 31 via the capture air inlet 34 where it is washed with CO: solvent 37. CO: solvent 37 flows to the CO: storage section 32 from the capture section 31. The CO:, captured by the solvent 37, is recovered in the

CO: recovery section 33. The solvent 37 flows from the CO: storage section 32 back to the CO: capture section 31. Pumps 45, 47 establish a circulation of the flow of solvent 37 between the CO: capture section and CO: storage section on the one hand and between the CO: storage section and CO: recovery section on the other hand.

Recovered CO: gas exits the CO: process unit 30 via the CO: gas outlet 36 and is introduced into the interior space 11 of the greenhouse 101 via valve 43 and CO: supply outlet 41.

Using a CO: storage section 32 has the advantage that the enrichment of the

CO: concentration in the greenhouse 101 may be easily adapted to the CO: consumption of the plants 20, which varies between day and night.

Heat exchanging between the air from the interior space 11 of the greenhouse 101 and the air from outside the greenhouse 101 saves energy and also helps in lowering the humidity of the air from the interior space 11 flowing to the CO: process unit 30.

A greenhouse 101 with growing plants 20 inside as shown in Fig. 5 is operated with a CO; concentration of about 600 ppm in the air that flows over and around the plants 20. The CO: concentration in the air outside the greenhouse 101 is about 400 ppm and the CO: concentration in the air exiting the capture air outlet 35 of the CO: capture section 31 is about 150 ppm. The CO: concentration in the air exiting the capture air outlet 35 of the CO: capture section 31 is lower than the CO; concentration in the air entering the air ventilation system 2 via the opening 3 of the inlet channel, so that keeping the CO: concentration at 600 ppm within the greenhouse 101 is partially or wholly accomplished with the CO; contained in air from the interior space 11.

For the CO: solvent 37 an aqueous solution is chosen of an alkanolamine or an amino acid salt. The CO: absorption reaction is reversible and selective with these amine components, and insensible for the humidity of the air from the interior space 11. Preferably, the amino acid salt is chosen from sodium or potassium salts of Glycine (Gly), Threonine (Thr), Asparagine (Asp), Glutamine (Glu), Proline (Pro), Lysine (Lys),

Phenylalanine (Phe), Taurine (Tau), Alanine (Ala), Sarcosine (Sar), Arginine (Arg).

Very good results have been obtained with an aqueous solution of Potassium Arginine for the CO: solvent 37.

The CO: recovery section 33 comprises an electrodialysis cell with an anode and a cathode for recovering and releasing the absorbed CO: from the CO: solvent 37 by means of electrodialysis. The electrodialysis cell further comprises a membrane in particular an ion-exchange membrane or a bipolar membrane. Surprisingly, it has been found that with a small amount of (electrical) energy of 1,8 kW/m3 CO: the absorbed

CO: in the form of an anion, like HCO: of CO:%, travels from the CO: solvent through the membrane, driven by the electric field applied by the anode and the cathode, and forms HCO: (aq) and substantially pure gaseous CO: on the other side of the membrane. The CO: process unit 30 comprises two circulation circuits for the CO: solvent 37, each comprising a pump. The first circulation circuit circulates the solvent 37 between the CO: storage section 32 and the CO: capture section 31 using a pump 45. The second circulation circuit circulates the solvent 37 between the CO: storage section 32 and the CO: recovery section 33 using a further pump 47.

Fig. 6 shows a flow diagram of the method 201 for climate control in a greenhouse 101. In a first step, air is provided 203 by the air ventilation system 2 from outside the greenhouse 101 into the interior space 11. In a second step, air is exhausted 205 by the air ventilation system 2 from the greenhouse 101 originating from the interior space 11. Next step is capturing 207, by the CO: solvent 37 in the

CO: capture section 31, CO: from the air exhausted from the interior space 11. The captured CO: from the air exhausted from the interior space 11 is stored 209 by the

CO: solvent 37 in the CO: storage section 32. Then, CO: stored in the storage section 32 is recovered 211 from the CO: solvent 37 in the CO: recovery section 33. The CO: recovered by the CO: recovery section 33 is then exhausted 213 to the interior space 11 via the CO: gas outlet 36. The CO: solvent 37 is circulated 215 by the first pressure device 45 between the CO: capture section 31 and the CO: storage section 32. The

CO: solvent 37 is circulated 217 by the second pressure device 47 between the CO: storage section 32 and the CO: recovery section 33.

Furthermore, the method 201 shown in Fig. 6 comprises the steps of exchanging 219, by the heat exchanger 7, heat between the inlet channel and the outlet channel, measuring 221, by the measurement system 49, a concentration of

CO: in the interior space 11, and controlling 223, by the control unit 51, the first pressure device 45 and/or the second pressure device 47 for maintaining the concentration of CO: in the interior space 11 within a predetermined range.

Claims

CONCLUSIONS

1. Warehouse (101) for growing plants (20) in an interior space (11) thereof, comprising an air ventilation system (2) provided with an inlet duct for supplying air from outside the warehouse (101} into the interior space (11) and an exhaust duct for removing air from the warehouse (101) originating from the interior space (11), wherein the warehouse (101) is further provided with a CO: processing unit (30) comprising: - a CO: capture section (31 ) adapted to capture CO: from air discharged from the interior space (11), wherein the CO2 capture section (31) is connected for fluid flow to the exhaust duct; - a CO2 storage section (32) adapted to store CO: captured, by the CO2 capture section (31), of air discharged from the inner space (11) and connected for fluid flow to the CO2 capture section (31); and - a CO2 recovery section (33) adapted for recovery CO: stored in the storage section (32) and connected for fluid flow to the CO: storage section (32), wherein the CO: recovery section (33) includes a CO: gas outlet (36) for removing CO: recovered by the CO: recovery section (33) at the interior space (11); and - a CO: solvent (37) designed to capture and/or store the CO:; - a first pressure device (45) adapted to circulate the CO: solvent (37) between the CO: capture section (31) and the CO 2 storage section (32); - a second pressure device (47) arranged to circulate the CO: solvent (37) between the CO: storage section (32) and the CO: recovery section (33).

The warehouse (101) of claim 1, wherein the CO 2 solvent (37) is an aqueous solution selected from an alkanolamine or an amino acid salt.

The department store (101) according to claim 2, wherein the amino acid salt is selected from sodium or potassium salts of Glycine (Gly), Threonine (Thr), Asparagine (Asp), Glutamine (Glu), Proline (Pro), Lysine (Lys) , Phenylalanine (Phe), Taurine (Tau), Alanine (Ala), Sarcosine (Sar), Arginine (Arg).

A warehouse (101) according to any one of the preceding claims, wherein the CO: recovery section (33) comprises an electrodialysis cell with an anode and a cathode for recovering and releasing absorbed CO: from the CO: solvent (37) by by means of electrodialysis.

Warehouse (101) according to claim 4, wherein the electrodialysis cell comprises a membrane, in particular an ion exchange membrane or a bipolar membrane.

6. Department store (101) according to any of the preceding claims, wherein the department store (101) comprises a heat exchanger (7) designed to exchange heat between the inlet channel and the outlet channel.

7. Department store (101) according to claim 6, wherein the heat exchanger (7) is arranged in such a way that air discharged from the inner space (11) passes the heat exchanger (7), via the exhaust duct, before the air is discharged from the inner space (11) received by the CO: capture section (31).

8. Warehouse (101) according to any one of the preceding claims, wherein the CO2 capture section (31) is provided with a capture air inlet (34) adapted to receive the air discharged from the interior space (11) and a capture air outlet (35) arranged for removing the air discharged from the interior space (11) from the CO: processing unit (30).

9. Department store (101) according to any of the preceding claims, wherein the department store (101) further comprises: - a measuring system (49) designed for measuring a concentration of CO: in the interior space (11); and - a control unit (51), communicatively coupled to the measuring system (49), the first pressure device (45) and/or the second pressure device (47), and adapted to control the first pressure device (45) and/or the second pressure device (47) for maintaining the concentration of CO within a predetermined range; in the interior space (11), preferably to keep the CO concentration constant. in the interior (11).

10. Method (201) for climate control in the department store (101) according to any of the preceding claims, the method (201) comprising the steps of: - supplying (203), through the air ventilation system (2), air from outside the department store (101) to the interior space (11);

- discharge (205), through the air ventilation system (2), of air from the warehouse (101) originating from the interior space (11); - capture (207), by the CO: solvent (37) in the CO: capture section (31), of CO: removed from the air from the interior space (11); - storing (209), by the CO2 solvent (37) in the CO2 storage section (32), of the CO: captured, by the CO2 capture section (31), removed from the air from the interior space (11}; - recovery (211), of the solvent (37) in the CO: recovery section (33), of CO: stored in the storage section (32); - discharge (213), via the CO: gas outlet (36), from CO: recovered by the CO: recovery section (33) at the inner space (11); - circulating (215), through the first pressure device (45), the CO: solvent (37) between the CO: capture section (31); ) and the CO2 storage section (32); and - circulate (217), through the second pressure device (47), the CO2 solvent (37) between the CO2 storage section (32) and the CO2 recovery section (33).

A method (201) according to claim 10 using the warehouse (101) according to claim 4, wherein, during the recovery step (211), the CO: is recovered from the CO 2 solvent (37) by means of electrodialysis .

A method (201) according to claim 10 or 11 using the warehouse (101) according to claim 6, wherein the method (201) further comprises the step of: - exchanging (219), through the heat exchanger (7), heat between the inlet duct and the exhaust duct.

The method (201) of claim 12, wherein the heat exchanging step (219) is performed prior to the capture step (207).

A method (201) according to any one of the preceding claims 10 to 13 using the warehouse (101) according to claim 8, wherein the temperature of the CO2 solvent (37) in the CO2 capture section (31) is higher than the temperature of the air discharged from the interior space (11) at the position of the capture air inlet (34).

A method (201) according to any one of the preceding claims 10 to 14 using the warehouse (101) according to claim 9, wherein the method (201) further comprises the steps of:

- measuring (221), by the measuring system (49), a concentration of CO: in the interior space (11); and - regulating (223), by the control unit (51), the first pressure device (45) and/or the second pressure device (47) for maintaining the concentration of CO within a predetermined range: in the interior space (11), preferably for keeping the concentration of CO constant; in the interior (11).