Intrinsic direct air capture.

ABSTRACT: How can you tell if a sorbent material will be good for any gas separation process - without having to do detailed simulations of the full process? We present new metrics to evaluate solid sorbent materials for Direct Air Capture (DAC), a particularly challenging gas separation problem, based entirely on intrinsic properties of the sorbent material. These new metrics provide a theoretical upper bound on CO₂ captured per energy as well as a theoretical upper limit on the purity of the captured CO₂. These metrics apply to any adsorption-refresh cycle design. The only inputs are the path adsorption-refresh cycle in terms of thermodynamic variables and the intrinsic materials properties (primarily the equilibrium uptake, and heat capacity) along that path. In this work we

SUBMITTER: McDannald A 

PROVIDER: S-EPMC12421324 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature