Molecular sieving of iso-butene from C₄ olefins with simultaneous high 1,3-butadiene and n-butene uptakes.

ABSTRACT: Iso-butene (iso-C₄H₈) is an important raw material in chemical industry, whereas its efficient separation remains challenging due to similar molecular properties of C₄ olefins. The ideal adsorbent should possess simultaneous high uptakes for 1,3-butadiene (C₄H₆) and n-butene (n-C₄H₈) counterparts, endowing high efficiency for iso-C₄H₈ separation in adsorption columns. Herein, a sulfate-pillared adsorbent, SOFOUR-DPDS-Ni (DPDS = 4,4'-dipyridyldisulfide), is reported for the efficient iso-C₄H₈ separation from binary and ternary C₄ olefin mixtures. The rigidity in pore sizes and shapes of SOFOUR-DPDS-Ni exerts the molecular sieving of iso-C₄H₈

SUBMITTER: Liu J 

PROVIDER: S-EPMC10933363 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature