Co2 separation device for separating co2 from a supplied air flow

WO2025093260A1PCT designated stage expired Publication Date: 2025-05-08ROBERT BOSCH GMBH
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Patent Information

Application Number
PCT/EP2024/078831
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-11-03
Filing Date
2024-10-14
Publication Date
2025-05-08

AI Technical Summary

Technical Problem

Existing CO2 separation technologies face inefficiencies due to large water vapor capacitors, high energy requirements, and mechanical stress on chamber walls, which increase costs and reduce operational efficiency.

Method used

A CO2 separation device with two adjacent separating chambers separated by a common partition, where a section of the CO2 absorption channel runs through the partition and can be cooled from the adjacent separation chamber, allowing for internal passive cooling and efficient separation of CO2 and steam-shaped water.

Benefits of technology

This approach reduces the size and cost of water vapor capacitors, lowers total energy requirements, and decreases mechanical stress on chamber walls, resulting in a more efficient and cost-effective CO2 separation process.

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Abstract

The invention relates to a CO2 separation device (10) for separating CO2 from a supplied air flow (12), having two adjoining separation chambers (12a, b) which are separated from one another by means of a common partition (14) and are operable in parallel in a CO2 separation mode and a CO2 release mode, and a CO2 discharge channel (16) for selectively discharging separated CO2 and vaporous water from the separation chambers, wherein a channel portion (18) of the CO2 discharge channel (16) extends through the common partition (14) and can be cooled by the separation chamber (12a) that is operated in CO2 separation mode at the time, wherein a channel portion inlet (28) of the channel portion (18) is selectively fluidically connectable to the separation chamber (12b) that is operated in CO2 release mode at the time, in order to isolate, by condensation at the cooled channel portion (18), the vaporous water from the separated CO2 when it is discharged from the separation chamber (12b).
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Citation Information

Patent Citations

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    CN103764255A

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  • High troughput direct air capture device for capturing co2 from air and method of its operation

    WO2020212146A1