Pore space partition on a sulfonate-rich metal–organic framework for purification of methane from natural gas

Abstract

By implementing the pore space partition (PSP) strategy on a sulfonate-rich acs-type metal–organic framework (MOF), we developed a new pacs structure, which features segmented pores with abundant O/N interacting sites. This structure selectively uptakes C₂H₆ and C₃H₈ from the ternary mixture of C₂H₆/C₃H₈/CH₄ with high selectivity and capacity, enabling effective purification of CH₄ from natural gas through a single adsorption process.