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arXiv · 2210.11308

Proposal for direct air capture of CO$_2$ during the Antarctic winter using physisorption

Clifford W. Hicks
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Abstract

The possibility of direct air capture of CO$_2$ in Antarctica is discussed. Because the concentration of H$_2$O in the atmosphere during the Antarctic winter is extremely low, an installation for direct air capture could employ a physisorption-based process, allowing, in principle, a very short adsorption/desorption cycle time. The lower required binding allows more options for materials for the sorbent. With a shorter cycle time, more resource could be spent on structuring the sorbent to improve energy efficiency, for example by improving its mass efficiency if desorption is driven thermally.

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Clifford W. Hicks. 2022-10-03. Proposal for direct air capture of CO$_2$ during the Antarctic winter using physisorption. https://arxiv.org/abs/2210.11308

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