Adsorption is a phenomenon in which molecules or ions from a fluid phase (gas or liquid) are attracted and retained on the surface of a solid phase (adsorbent). Adsorption is different from absorption ...

In FY2019, we evaluated the direct air capture (DAC) process that uses the KOH-CaCO 3 alkali absorption method. For this proposal paper, we focused on the DAC process involving the adsorption method ...