Process intensification of solid‐sorbent <scp>DAC</scp> via a rotating vortex reactor

Abstract This work investigates the performance of the rotating vortex reactor (RVR) as a promising intensified contactor for direct air capture (DAC). Both adsorption and desorption are tested across ranges of superficial gas velocities and rotation speeds, thereby tuning the bed regime—packed or fluidized—under a centrifugal force field (known as a high‐gravity condition) and a vortex flow to enhance mass and heat transfer. A cyclic cut‐off analysis further quantifies the contributions of the main energy consumers and clarifies the trade‐offs between productivity and energy demand. The adsorber achieves high volumetric CO 2 capture rates of 7.5–13.5 kgCO 2 /(m 3 ·h), while hot‐air regeneration enables rapid desorption in &lt;10 min. This proof‐of‐concept study shows RVR's potential for process intensification while identifying areas for further improvement in the unit's design and operation to reduce energy demand for DAC.