Importance

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Abstract

Apparatuses and methods for providing carbon dioxide direct air capture (DAC) systems to improve energy efficiency, operability, and economic performance of DAC technologies based on several types of approaches including temperature swing adsorption (TSA), pressure swing adsorption (PSA), and moisture swing adsorption (MSA) are disclosed. In particular, DAC apparatuses including a first water extraction unit, a process unit comprising a second water extraction unit, a carbon dioxide capture unit, and a water release unit are disclosed. The present disclosure also provides a logic control system for a preconditioner for the proposed DAC apparatus, including a controller, and one or more control elements in communication with the fluid streams, where the controller is configured to adjust temperature, water content, or combination thereof of the second fluid stream, third fluid stream, or both to pre-determined ranges based on the cost to capture carbon dioxide on a net removal basis.

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First Claim