Sorp-Vection-Based Membrane Silicone Oil Purification.

ABSTRACT: "Sorp-vection" is a membrane separation technique that synergistically combines sorption with convective flow mechanisms. Beyond its conceptual discussion, we demonstrate a sorp-vection separation achieved in a gas-liquid system, where permeation of a gas directly drives selective permeation of an organic solute across a dense polymer layer overcoming osmotic limitations of conventional membrane processes. Here, a long-standing challenge in silicone oil production is addressed, in which residual cyclic oligosiloxanes are removed from silicone oil streams through permeation of CO₂ across an optimally crosslinked PDMS selective layer. A lab-scale 1^st generation Sorp-vection system demonstrated, with a separation factor above 15 to remove D4 (octamethylcyclotetrasiloxane

SUBMITTER: Kim J 

PROVIDER: S-EPMC12790354 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature