Effective Pore Distribution and Mechanism of CO₂/CH₄ Dynamic Separation by Carbon Molecular Sieves.

ABSTRACT: Addressing the pressing demand for biogas and landfill-gas upgrading within the global energy transition, this work strategically combines thermodynamic and kinetic separation principles to identify, from a cooperative-separation perspective, the effective pore-size range that governs carbon molecular sieve (CMS) performance. Thirty anthracite-derived CMS samples with distinct pore structures were synthesized and employed as a statistical set to link pore architecture with dynamic adsorption performance. The results clarify the effective pore-size range and mechanism for enhanced CMS selectivity: CH₄ uptake depends exclusively on ultramicropores (<10 Å), with a negligible contribution from mesopores (>20 Å), whereas CO₂ uptake is less sensitive to pore-size distributi

SUBMITTER: Gu J 

PROVIDER: S-EPMC12609680 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature