CO2 Sequestration System for Cooling Towers

The integration of a CO2 sequestration system with a cooling tower, using a heating and temperature control system, addresses the inefficiencies of conventional systems by ensuring effective CO2 capture and management within the cooling tower environment.

JP2026500661APending Publication Date: 2026-01-08HITACHI ENERGY LTD
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Patent Information

Application Number
JP2025536704
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-12-23
Filing Date
2023-12-22
Publication Date
2026-01-08

AI Technical Summary

Technical Problem

Conventional CO2 sequestration systems face challenges when integrated with cooling towers, requiring improvements to efficiently separate CO2 from ambient air.

Method used

A CO2 sequestration system is integrated with a cooling tower's air inlet and outlet, utilizing a heating system to maintain the CO2 sequestration module at a desired temperature, and a temperature control system to manage CO2 flushing, with a membrane or chemical module for separation.

Benefits of technology

Effectively separates CO2 from ambient air within the cooling tower system, ensuring efficient CO2 capture and management, even under varying temperature conditions.

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Abstract

The present disclosure relates to a CO2 sequestration system including a CO2 sequestration module coupled to at least one of an air inlet and an air outlet of a cooling fan of a cooling tower, the cooling tower cooling a refrigerant entering the cooling tower based on air received at least in the cooling fan air inlet and exiting the cooling fan outlet, the CO2 sequestration module configured to separate CO2 from ambient air received at least in the cooling fan air inlet and exiting the cooling fan outlet. Further, the present disclosure relates to a method of separating CO2 from ambient air.
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Description

[Technical Field]

[0001] Technical Field The present disclosure relates to a CO2 sequestration system and corresponding method for separating CO2 from ambient air. [Background technology]

[0002] background In light of recent climate change, there has been particular attention paid to reducing CO2 emissions, and therefore restrictions have been imposed on industries with very high carbon dioxide emissions, such as the chemical or power generation industries. Such industries often involve the generation of heat through exothermic reactions in stationary plants, thus producing CO2 as a by-product of the exothermic reaction, which must be captured and further processed. In most cases, such stationary plants involve temperature control equipment such as cooling towers. To achieve the required CO2 separation, conventional CO2 sequestration modules can be implemented in such facilities. However, this implementation poses technical challenges and therefore requires improvements at the system level. Summary of the Invention [Problem to be solved by the invention]

[0003] Therefore, there is a need for improved CO2 sequestration systems and corresponding methods for separating CO2 from ambient air. [Means for solving the problem]

[0004] overview The present disclosure relates to a CO2 sequestration system comprising a CO2 sequestration module coupled to at least one of an air inlet and an air outlet of a cooling fan of a cooling tower, wherein the cooling tower cools a coolant entering the cooling tower based on air received at least in the air inlet of the cooling fan and exiting at the outlet of the cooling fan, and the CO2 sequestration module is configured to separate CO2 from ambient air, which is at least one of the air received in the air inlet of the cooling fan and the air exiting at the outlet of the cooling fan.

[0005] In one embodiment, a CO2 sequestration system includes a housing having a housing air inlet and a housing air outlet configured to couple to an air inlet of a cooling fan.

[0006] In one embodiment, the CO2 sequestration module is disposed within the housing. In one embodiment, ambient air is received at the housing air inlet and CO2-depleted air from the CO2 sequestration module is delivered to the cooling fan air inlet via the housing air outlet.

[0007] In one embodiment, a CO2 sequestration system includes a housing having a housing air inlet configured to couple to an air outlet of a cooling fan and a housing air outlet.

[0008] In one embodiment, the CO2 sequestration module is disposed within the housing. In one embodiment, ambient air is delivered from a cooling fan through an air inlet in the housing, and CO2-depleted air from the CO2 sequestration device is discharged from the housing through a housing air outlet.

[0009] In one embodiment, the CO2 sequestration system includes a heating system thermally coupled to the CO2 sequestration module.

[0010] In one embodiment, the heating system is configured to heat the CO2 sequestration module.

[0011] In one embodiment, when the temperature of the CO2 sequestration module exceeds a threshold temperature, CO2 is flushed from the CO2 sequestration module.

[0012] In one embodiment, the heating system includes at least one heat generating module that generates heat by an exothermic reaction process.

[0013] In one embodiment, at least a portion of the generated heat is directed through the medium to heat the CO2 sequestration module.

[0014] In one embodiment, the heating system is configured to be thermally coupled to at least one heat generating module that generates heat by an exothermic reaction process.

[0015] In one embodiment, at least a portion of the generated heat is directed through the medium to heat the CO2 sequestration module.

[0016] In one embodiment, the CO2 sequestration system includes a media cooling module that thermally couples the media and the coolant.

[0017] In one embodiment, the media cooling module is configured to cool the media based at least on the reduced temperature refrigerant exiting the cooling tower.

[0018] In one embodiment, the coolant used by the media cooling module to cool the media re-enters the cooling tower after cooling the media.

[0019] In one embodiment, the temperature of the CO2 sequestration module, achieved by heat exchange between the CO2 sequestration module and the coolant that re-enters the cooling tower, particularly after cooling the medium, is below a threshold temperature, and CO2 is flushed out of the CO2 sequestration module when the temperature of the CO2 sequestration module exceeds the threshold temperature.

[0020] In one embodiment, the at least one heat generating module comprises or is a power plant or chemical plant that generates heat by an exothermic reaction process based on fossil fuels, biomass fuels, geothermal energy, nuclear energy, and / or renewable energy, or the at least one heat generating module produces hydrogen, in particular by an electrolysis process.

[0021] In one embodiment, the CO2 sequestration system includes a temperature control system configured to control the heating system to heat the CO2 sequestration module to a desired setpoint temperature.

[0022] In one embodiment, the temperature control system is a controlled loop temperature control system. In one embodiment, the control loop temperature control system includes a temperature sensor configured to sense the temperature in the CO2 sequestration module.

[0023] In one embodiment, the control loop temperature control system includes a controller configured to compare the temperature sensed at the CO2 sequestration module with a desired setpoint temperature for CO2 flow from the CO2 sequestration module and determine whether the CO2 sequestration module requires further heating by the heating system to the desired setpoint temperature for CO2 flow from the CO2 sequestration module.

[0024] In one embodiment, the temperature control system is further configured to heat the CO2 sequestration module before and / or during the CO2 bleed period.

[0025] In one embodiment, the CO2 sequestration module is a membrane and / or chemical CO2 sequestration module.

[0026] The present disclosure further relates to a method for separating CO2 from ambient air using a CO2 sequestration system, the CO2 sequestration system including a CO2 sequestration module coupled to at least one of an air inlet and an air outlet of a cooling fan of a cooling tower, the cooling tower cooling a coolant entering the cooling tower based on air received into at least the air inlet of the cooling fan and exiting the outlet of the cooling fan, the method including separating CO2 from the ambient air, which is at least one of the air received into the air inlet of the cooling fan and the air exiting the outlet of the cooling fan, by the CO2 sequestration module.

[0027] In one embodiment, CO2 is separated from ambient air using a CO2 sequestration system according to any one of the embodiments described herein.

[0028] In one embodiment, the CO2 sequestration system comprises an apparatus comprising a processor configured to separate CO2 from ambient air according to any one of the methods described herein.

[0029] Various exemplary embodiments of the present disclosure relate to presenting features that will become readily apparent by reference to the following description and by consideration in conjunction with the accompanying drawings. In accordance with various embodiments, exemplary systems, methods, and apparatus are disclosed herein. It is understood, however, that these embodiments are presented by way of example, not limitation, and that various modifications to the disclosed embodiments will be apparent to those skilled in the art upon review of this disclosure, without departing from the scope of the present disclosure.

[0030] Thus, the present disclosure is not limited to the example embodiments and applications described and illustrated herein. Additionally, the specific order and / or hierarchy of steps in the methods disclosed herein is merely example approaches. Depending on design preferences, the specific order or hierarchy of steps in a disclosed method or process may be rearranged without departing from the scope of the present disclosure. Thus, those skilled in the art will understand that the methods and techniques disclosed herein present various steps or operations in an example order, and that the disclosure is not limited to the specific order or hierarchy presented, unless otherwise stated.

[0031]

[0023] In the following, exemplary embodiments of the present disclosure are described. It should be noted that some aspects of any of the described embodiments may also be found in some other embodiments, unless otherwise specified or apparent. However, to improve comprehension, each aspect will only be described in detail when first mentioned, and repeated descriptions of the same aspects will be omitted.

[0032] These and other aspects and implementations thereof are explained in further detail in the drawings, description, and claims. [Brief explanation of the drawings]

[0033] [Figure 1] 1 illustrates a CO2 sequestration system according to one embodiment of the present disclosure. [Figure 2a] FIG. 1 illustrates a system-level block diagram of a CO2 sequestration system according to one embodiment of the present disclosure. [Figure 2b] FIG. 1 shows a block diagram of a temperature control system according to one embodiment of the present disclosure. [Figure 3] 1 shows a flowchart of a method according to one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0034] Detailed Description of the Disclosure 1 illustrates a CO2 sequestration system according to one embodiment of the present disclosure. The CO2 sequestration system 100 includes a CO2 sequestration module 112 coupled to at least one of an air inlet and an air outlet of a cooling fan 111 of a cooling tower 110, the cooling tower 110 cooling a refrigerant, i.e., hot water 132 in FIG. 1, entering the cooling tower 110 based on at least the air received by the air inlet of the cooling fan 111 and exiting from the outlet of the cooling fan 111, and the CO2 sequestration module 112 configured to separate CO2 from ambient air, which is at least one of the air received by the air inlet of the cooling fan 111 and the air exiting from the outlet of the cooling fan 111.

[0035] 1 , CO2 sequestration module 112 is coupled to an interior wall of a cooling tower such that ambient air, i.e., at least one of the air received at the air inlet of cooling fan 111 and the air exiting the outlet of cooling fan 111, passes through CO2 sequestration module 112. In one embodiment, CO2 sequestration module 112 is coupled to an air outlet of cooling fan 111 such that ambient air, i.e., at least one of the air received at the air inlet of cooling fan 111 and the air exiting the outlet of cooling fan 111, passes through CO2 sequestration module 112. In one embodiment, CO2 sequestration module 112 is supported by a support structure coupled to the interior wall of cooling tower 110 or the outlet of cooling fan 111. In another embodiment, CO2 sequestration system 100 includes a housing having a housing air inlet and a housing air outlet configured to couple to the air inlet of cooling fan 111, and CO2 sequestration module 112 is disposed within the housing. In one embodiment, ambient air is received at the housing air inlet, and CO2-depleted air from the CO2 sequestration module 112 is delivered to the air inlet of the cooling fan 111 via the housing air outlet. In yet another embodiment, the CO2 sequestration system 100 comprises a housing having a housing air inlet configured to couple to the air outlet of the cooling fan 111 and a housing air outlet, and the CO2 sequestration module 112 is disposed within the housing. In one embodiment, ambient air is delivered from the cooling fan 111 through the housing air inlet, and CO2-depleted air from the CO2 sequestration device is discharged from the housing via the housing air outlet. In one embodiment, the CO2 sequestration module 112 is a membrane and / or chemical CO2 sequestration module.

[0036] In one embodiment, the CO2 sequestration system 100 includes a heating system thermally coupled to the CO2 sequestration module 112. The heating system is configured to heat the CO2 sequestration module, and when the temperature of the CO2 sequestration module exceeds a threshold temperature, CO2 flows out of the CO2 sequestration module. Referring to FIG. 1, the heating system includes a boiler 120 (i.e., a heat-generating module) that generates heat through an exothermic reaction process. The boiler 120 includes a water pipe that is heated by the generated heat and converts the water in the pipe into steam. The steam is channeled through a turbine coupled to an electric generator, and a portion of the generated heat is channeled through a heating pipe 140 in the form of steam 121 to heat the CO2 sequestration module. The heating pipe 140 is wrapped around the CO2 sequestration module 112, and thus the heating pipe 140 is thermally coupled to the CO2 sequestration module 112. Those skilled in the art will appreciate that thermal coupling may or may not require physical contact. The flow of steam 121 through the heating pipe 140 is controlled by a valve 150. When the CO2 sequestration module 112 exceeds a threshold temperature, the CO2 sequestration device is configured to separate CO2 from the ambient air. In one embodiment, the separated CO2 is captured and / or directed to another module, particularly for further processing and / or treatment, particularly chemically. In one embodiment, the heating system is configured to be thermally coupled to at least one heat-generating module that generates heat by an exothermic reaction process, and at least a portion of the generated heat is directed through the medium to heat the CO2 sequestration module.

[0037] The CO2 sequestration system shown in FIG. 1 further includes a condenser 130 thermally coupled to steam 121 generated based on heat generated by the boiler 120. The condenser 130 cools the steam 121 by allowing cold water 131 from the cooling tower 110 to flow through piping that passes through the interior of the condenser. Heat exchange between the steam 121 and the cold water 131 heats the cold water 131, resulting in hot water 132. The hot water 132 re-enters the cooling tower 110 after cooling the steam 121. In one embodiment, the CO2 sequestration module is thermally insulated from the hot water 132, which re-enters the cooling tower 110 after cooling the steam 121. In one embodiment, the temperature of the CO2 sequestration module 112 achieved by heat exchange between the CO2 sequestration module and the hot water 132 is below a threshold temperature at which CO2 flows out of the CO2 sequestration module. In one embodiment, the at least one heat generating module comprises or is a power plant or chemical plant that generates heat by an exothermic reaction process based on fossil fuels, biomass fuels, geothermal energy, nuclear energy, and / or renewable energy, or the at least one heat generating module produces hydrogen, in particular by an electrolysis process.

[0038] FIG. 2a) shows a system-level block diagram of a CO2 sequestration system according to one embodiment of the present disclosure. The CO2 sequestration system 200 includes a temperature control system 230 configured to control a heating system 220 to heat a CO2 sequestration module 210 to a desired setpoint temperature. The temperature control system 230 may be a control-loop temperature control system. As shown in FIG. 2b), the control-loop temperature control system includes a temperature sensor 231 configured to sense a temperature 213 at the CO2 sequestration module 210, and further includes a controller 232 configured to compare the sensed temperature at the CO2 sequestration module 210 with a desired setpoint temperature for flushing CO2 from the CO2 sequestration module 210 to determine whether the CO2 sequestration module 210 requires further heating by the heating system 220 to the desired setpoint temperature for flushing CO2 from the CO2 sequestration module. The temperature control system is further configured to generate a heat control signal 232 to transfer heat 221 to the CO2 sequestration module 210 before and / or during the CO2 flushing period. In one embodiment, CO2 sequestration system 200 may be implemented as shown in FIG. 1, and temperature control in CO2 sequestration module 210 may be achieved by controlling steam valve 150. Those skilled in the art will appreciate that the control system shown in FIGS. 2a) and 2b) is a closed-loop temperature control logic for the CO2 sequestration module. Furthermore, those skilled in the art will appreciate that the temperature of the CO2 sequestration module may be controlled in an open-loop manner, i.e., temperature control system 230 generates a heat control signal 232 to cause heating system 220 to heat CO2 sequestration module 210 without relying on temperature information from CO2 sequestration module 210. In one embodiment, the CO2 sequestration system further comprises a device comprising a processor configured to separate CO2 from ambient air according to any one of the methods described herein.

[0039] 3 shows a flowchart of a method according to one embodiment of the present disclosure. Specifically, the method is for separating CO from ambient air using a CO sequestration system, the CO sequestration system including a CO sequestration module coupled to at least one of an air inlet and an air outlet of a cooling fan of a cooling tower, the cooling tower cooling a coolant entering the cooling tower based on air received at least in the air inlet of the cooling fan and exiting from the outlet of the cooling fan. In S301, CO is separated by the CO sequestration module from ambient air, which is at least one of the air received into the air inlet of the cooling fan and the air exiting from the outlet of the cooling fan. In one embodiment, CO is separated from ambient air using a CO sequestration system according to any one of the embodiments described herein.

[0040] In one embodiment, the CO2 sequestration system includes a housing having a housing air inlet and a housing air outlet configured to couple to an air inlet of a cooling fan, the CO2 sequestration module is disposed within the housing, and the method further includes receiving ambient air into the air inlet of the housing and delivering CO2-reduced air from the CO2 sequestration module to the air inlet of the cooling fan via the housing air outlet.

[0041] In one embodiment, the CO2 sequestration system includes a housing having a housing air inlet configured to couple to an air outlet of a cooling fan and a housing air outlet, the CO2 sequestration module is disposed within the housing, and the method further includes delivering ambient air from the cooling fan through the air inlet of the housing and delivering CO2-reduced air from the CO2 sequestration device from the housing via the housing air outlet.

[0042] In one embodiment, the CO2 sequestration system includes a heating system thermally coupled to the CO2 sequestration module, and the method includes heating the CO2 sequestration module with the heating system.

[0043] In one embodiment, the method includes flowing CO2 out of the CO2 sequestration module when the temperature of the CO2 sequestration module exceeds a threshold temperature.

[0044] In one embodiment, the heating system includes at least one heat generating module that generates heat by an exothermic reaction process, and the method includes directing at least a portion of the generated heat through a medium to heat the CO2 sequestration module.

[0045] In one embodiment, the method includes thermally coupling a heating system to at least one heat generating module that generates heat by an exothermic reaction process.

[0046] In one embodiment, the method includes directing at least a portion of the generated heat through a medium to heat a CO2 sequestration module.

[0047] In one embodiment, the CO2 sequestration system includes a media cooling module that thermally couples the media and the coolant, and the method includes configuring the media cooling module to cool the media based at least on the reduced temperature coolant exiting the cooling tower, and cooling the media by the media cooling module based at least on the reduced temperature coolant.

[0048] In one embodiment, the coolant used by the media cooling module to cool the media re-enters the cooling tower after cooling the media.

[0049] In one embodiment, the at least one heat generating module comprises or is a power plant or chemical plant that generates heat by an exothermic reaction process based on fossil fuels, biomass fuels, geothermal energy, nuclear energy, and / or renewable energy, or the at least one heat generating module produces hydrogen, in particular by an electrolysis process.

[0050] In one embodiment, the method includes controlling a heating system to heat a CO2 sequestration module to a desired setpoint temperature.

[0051] In one embodiment, the temperature control system is a controlled loop temperature control system, the controlled loop temperature control system including a temperature sensor, and the method includes sensing a temperature of the CO2 sequestration module with the temperature sensor.

[0052] In one embodiment, the method includes controlling a temperature sensed at a CO2 sequestration module to a desired setpoint temperature for flushing CO2 from the CO2 sequestration module, and determining whether the CO2 sequestration module requires further heating by a heating system to the desired setpoint temperature for flushing CO2 from the CO2 sequestration module.

[0053] In one embodiment, the method includes heating the CO2 sequestration module before and / or during the CO2 bleed period.

[0054] In one embodiment, the CO2 sequestration module is a membrane and / or chemical CO2 sequestration module.

[0055] While various embodiments of the present disclosure have been described above, it should be understood that they are presented by way of example only, and not by way of limitation. Similarly, various diagrams may depict example architectures or configurations, which are presented to enable those skilled in the art to appreciate example features and functionality of the present disclosure. However, those skilled in the art will appreciate that the present disclosure is not limited to the example architectures or configurations shown, but may be implemented using a variety of alternative architectures and configurations. Moreover, as those skilled in the art will appreciate, one or more features of one embodiment can be combined with one or more features of another embodiment described herein. Thus, the breadth and scope of the present disclosure should not be limited by any of the example embodiments described above.

[0056] Also, any reference to elements herein using a designation such as "first," "second," etc., is generally understood not to limit the quantity or order of those elements. Rather, these designations may be used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, a reference to a first and a second element does not imply that only two elements can be used, nor does it imply that the first element must precede the second element in some way.

[0057] Additionally, those skilled in the art will understand that information and signals may be represented using any of a variety of different technologies and techniques. For example, the data, instructions, commands, information, signals, bits, and symbols that may be referred to in the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0058] Furthermore, those skilled in the art will appreciate that any of the various illustrative logical blocks, units, processors, means, circuits, methods, and functions described in connection with the aspects disclosed herein may be implemented by electronic hardware (e.g., digital implementations, analog implementations, or a combination of both), firmware, various forms of program or design code incorporating instructions (which may be conveniently referred to herein as "software" or "software units"), or any combination of these technologies.

[0059] To clearly illustrate this interchangeability of hardware, firmware, and software, various illustrative components, blocks, units, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware, firmware, software, or a combination of these techniques depends on the particular application and design constraints imposed on the overall system. Those skilled in the art may implement the described functionality in varying ways to suit each particular application, and such implementation decisions do not result in a departure from the scope of the present disclosure. According to various embodiments, a processor, device, component, circuit, structure, machine, unit, etc. may be configured to perform one or more of the functions described herein. The term “configured to” or “configured for,” as used herein with respect to a specified operation or function, refers to a processor, device, component, circuit, structure, machine, unit, etc. that is physically constructed, programmed, and / or configured to perform the specified operation or function.

[0060] Furthermore, those skilled in the art will understand that the various example methods, logical blocks, units, devices, components, and circuits described herein can be implemented in or executed by an integrated circuit (IC), which may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device, or any combination thereof. The logical blocks, units, and circuits may further include an antenna and / or transceiver for communicating with various components within a network or device. A general-purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, or state machine. A processor may also be realized as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other suitable configuration for performing the functions described herein. If implemented in software, the functions may be stored as one or more instructions or code on a computer-readable medium. Thus, the steps of a method or algorithm disclosed herein can be embodied in software stored on a computer-readable medium.

[0061] Computer-readable media includes both computer storage media and communication media, including any medium that can enable a computer program or code to be transferred from one place to another. Storage media may be any available medium that can be accessed by a computer. By way of example, and not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer.

[0062] Additionally, memory or other storage devices, as well as communication components, may be used in embodiments of the present disclosure. It will be appreciated that, for clarity, the above description describes embodiments of the present disclosure in terms of various functional units and processors. However, it will be apparent that any suitable distribution of functionality between various functional units, processing logic elements, or domains may be used without departing from the present disclosure. For example, functions illustrated as being performed by separate processing logic elements or controllers may be performed by the same processing logic element or controller. Thus, references to specific functional units do not indicate a strict logical or physical structure or organization, but merely to suitable means for providing the described functionality.

[0063] Various modifications to the embodiments described in this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of the present disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein, but rather is to be accorded the widest scope consistent with the novel features and principles disclosed herein, as set forth in the following claims.

Claims

1. a CO2 sequestration module coupled to at least one of an air inlet and an air outlet of a cooling fan of a cooling tower, wherein the cooling tower cools a refrigerant entering the cooling tower based on air received in at least the air inlet of the cooling fan and exiting the outlet of the cooling fan; A CO2 sequestration system, wherein the CO2 sequestration module is configured to separate CO2 from the ambient air that is received at the air inlet of the cooling fan and / or exits the outlet of the cooling fan.

2. a housing having a housing air inlet and a housing air outlet configured to couple to the air inlet of the cooling fan; the CO2 sequestration module is disposed within the housing; 2. The CO2 sequestration system of claim 1, wherein the ambient air is received into the air inlet of the housing and CO2-depleted air from the CO2 sequestration module is delivered to the air inlet of the cooling fan via the housing air outlet.

3. a housing having a housing air inlet configured to couple to the air outlet of the cooling fan and a housing air outlet; the CO2 sequestration module is disposed within the housing; 2. The CO2 sequestration system of claim 1, wherein the ambient air is delivered from the cooling fan through the air inlet of the housing and CO2-depleted air from the CO2 sequestration device is discharged from the housing through the housing air outlet.

4. a heating system thermally coupled to the CO2 sequestration module; the heating system is configured to heat the CO2 sequestration module; 4. The CO2 sequestration system of claim 1, wherein CO2 is flushed out of the CO2 sequestration module when the temperature of the CO2 sequestration module exceeds a threshold temperature.

5. the heating system includes at least one heat generating module that generates heat by an exothermic reaction process; 5. The CO2 sequestration system of claim 4, wherein at least a portion of the generated heat is directed through a medium to heat the CO2 sequestration module.

6. the heating system is configured to be thermally coupled to at least one heat generating module that generates heat by an exothermic reaction process; 5. The CO2 sequestration system of claim 4, wherein at least a portion of the generated heat is directed through a medium to heat the CO2 sequestration module.

7. a medium cooling module thermally coupling the medium and the coolant; 7. The CO2 sequestration system of claim 5 or 6, wherein the medium cooling module is configured to cool the medium based on at least a reduced temperature refrigerant exiting the cooling tower.

8. 8. The CO2 sequestration system of claim 7, wherein the coolant used by the media cooling module to cool the media re-enters the cooling tower after cooling the media.

9. 9. The CO2 sequestration system according to claim 5, wherein the at least one heat-generating module comprises or is a power plant or chemical plant that generates the heat by an exothermic reaction process based on fossil fuels, biomass fuels, geothermal energy, nuclear energy, and / or renewable energy, or the at least one heat-generating module produces hydrogen, in particular by an electrolysis process.

10. 10. The CO2 sequestration system of claim 4, further comprising a temperature control system configured to control the heating system to heat the CO2 sequestration module to a desired setpoint temperature.

11. the temperature control system is a control loop temperature control system; 11. The CO2 sequestration system of claim 10, wherein the control loop temperature control system comprises a temperature sensor configured to sense a temperature in the CO2 sequestration module.

12. 12. The CO2 sequestration system of claim 11, wherein the control loop temperature control system comprises a controller configured to compare a temperature sensed at the CO2 sequestration module to the desired setpoint temperature for CO2 flow from the CO2 sequestration module and determine whether the CO2 sequestration module requires further heating by a heating system to the desired setpoint temperature for CO2 flow from the CO2 sequestration module.

13. 13. The CO2 sequestration system of any one of claims 10 to 12, wherein the temperature control system is further configured to heat the CO2 sequestration module before and / or during a CO2 bleed period.

14. The CO2 sequestration system according to any one of claims 1 to 13, wherein the CO2 sequestration module is a membrane and / or chemical CO2 sequestration module.

15. 1. A method for separating CO2 from ambient air using a CO2 sequestration system, comprising: The CO2 sequestration system includes a CO2 sequestration module coupled to at least one of an air inlet and an air outlet of a cooling fan of a cooling tower, the cooling tower configured to cool a refrigerant entering the cooling tower based on air received in at least the air inlet of the cooling fan and exiting the air outlet of the cooling fan; The method comprises: Separating CO2 from the ambient air received into the air inlet of the cooling fan and / or exiting the air outlet of the cooling fan by the CO2 sequestration module. A method comprising:

16. 16. The method of claim 15, wherein CO2 is separated from ambient air using a CO2 sequestration system according to any one of claims 2 to 14.