Solid with infused reactive liquid (SWIRL): A novel liquid-based separation approach for effective CO₂ capture.

ABSTRACT: Economical CO₂ capture demands low-energy separation strategies. We use a liquid-infused surface (LIS) approach to immobilize reactive liquids, such as amines, on a textured and thermally conductive solid substrate with high surface-area to volume ratio (A/V) continuum geometry. The infused, micrometer-thick liquid retains that high A/V and directly contacts the gas phase, alleviating mass transport resistance typically encountered in mesoporous solid adsorbents. We name this LIS class "solid with infused reactive liquid" (SWIRL). SWIRL-amine requires no water dilution or costly mixing unlike the current liquid-based commercial approach. SWIRL-tetraethylenepentamine (TEPA) shows stable, high capture capacities at power plant CO₂ concentrations near flue gas temperatur

SUBMITTER: Yeganeh MS 

PROVIDER: S-EPMC8827647 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature