System, method and apparatus for Development of a chemical battery for captured carbon dioxide

    公开(公告)号:US20250083099A1

    公开(公告)日:2025-03-13

    申请号:US18805707

    申请日:2024-08-15

    Applicant: SeaVar LLC

    Abstract: One embodiment of the the invention is a method to develop a chemical battery for captured carbon dioxide, comprising: utilizing a hydroxide compound in water to absorb carbon dioxide from industrial exhaust gas; resulting in a solution of carbonates and bicarbonates in water; dewatering the solution, leaving solid carbonates and bicarbonates and thermally decomposing the solid carbonates and bicarbonates to an oxide compound, releasing pure CO2 gas; hydrating the oxide compound with water, forming a hydroxide compound; and then repeating the top step indefinitely. The hydroxide compound could be any one of sodium hydroxide, potassium hydroxide, magnesium hydroxide, or lithium hydroxide; and the respective oxide compound could be any one of sodium oxide, potassium oxide, magnesium oxide, or lithium oxide.

    Method & Apparatus for Regenerating Sorbent from Carbon Dioxide Absorption

    公开(公告)号:US20220379285A1

    公开(公告)日:2022-12-01

    申请号:US17741823

    申请日:2022-05-11

    Applicant: SeaVar LLC

    Inventor: Uday Singh

    Abstract: A method for the regeneration of effluent from an absorber capturing emissions of carbon dioxide (CO2) from industrial sources. Reducing CO2 emissions from all sources is a key objective of most nations, and every industrial source of CO2 emissions has received extensive scrutiny.
    The method involves designing and installing on a source a proprietary thermal regeneration system for a sorbent used in the CO2 capture equipment system, which recirculates the sorbent liquid through an absorption column (absorber). Because sorbents used in these systems are expensive, it would be useful if the spent sorbent following absorption of CO2 is regenerated for re-use in the absorber. The present invention's regeneration method uses thermal swing (changes in temperature of the spent sorbent), and describes the integration of a waste heat recovery process into the thermal swing method. In particular, the method uses a heat transfer agent in a sealed loop circulating the heat transfer agent through a hot industrial source producing the CO2 stream.

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