Fig. 1: Schematic diagram of direct air capture (DAC) plants for CO2 capture, regeneration, and reuse.
From: Perspective on distributed direct air capture: what, why, and how?

a DAC plants incorporate both centralized and distributed designs for flexible deployment. Ambient air is drawn into the system via fans, where CO2 is captured using either liquid or solid sorbents. Once captured, the CO2 is released through thermal regeneration of the sorbents powered by various energy sources. The captured CO2 can subsequently be sequestered or utilized as a raw material in industrial applications. b Schematic of centralized DAC design. c Schematic of distributed DAC design.