Membranes, Journal Year: 2025, Volume and Issue: 15(3), P. 83 - 83

Published: March 5, 2025

For industrial CO2 utilization, the supply of concentrated within a continuous, high-volume stream at high temperatures remains substantial requirement. Membrane processes offer simple and efficient method to provide in this form. While several organo-silica-based membranes have been developed for CO2/N2 separation under these conditions, there is no standardized framework guiding comparability optimization. Therefore, we present Robeson-like plot across various temperatures. Utilizing standard 1,2-bis(triethoxysilyl)-ethane (BTESE) precursor simplified sol–gel method, prepared microporous membrane layer characterized it an exemplary comparison. This characterization includes key parameters mixed-gas applications: (1) temperature-dependent single- permeances observe interactions, (2) impact driving forces mixtures (vacuum concentration) distinguish between permselectivity factor clearly, (3) influence support structure enable permeability calculations elevated Furthermore, quick interpretation assessing membrane’s microstructure presented. A qualitative assessment can be achieved by analyzing temperature dependencies three major diffusion mechanisms that simultaneously occur—Knudsen, surface, activated diffusion.

Language: Английский