Experimental study on CO2 separation using hydrophobic deep eutectic solvent based supported liquid membranes

Deep eutectic solvents (DESs) have been proposed as a viable and more sustainable solvent for CO2 capture, owing to their low volatility tunable properties. In this work, polymer membranes were combined with hydrophobic DESs prepare supported liquid (DES-SLMs), the potential of using SLMs CO2/N2 separation was investigated. COSMO-RS model simulations, bond energy analysis well stability tests used select polymeric porous support. Hydrophobic polyvinylidene fluoride (PVDF) nominal pore size 0.1 ?m chosen support three selected DESs. The gas permeabilities through DES-SLMs experimentally determined, where thymol-coumarin (1:1) based SLM showed best performance permeability 175.0 Barrer selectivity 30.2 at room temperature. capability further improved by mixing DES traditional physical absorbents. addition, effects water presence in phase on DES-SLM membrane physically stable, but ideal deteriorated time steam. By predicting N2 organic SLMs, prospects developing applications demonstrated. Finally, an advanced capture process natural gas-fired cycle (NGCC) power plant studied simulation economic analysis, are purify product.