Multi-layer composite hollow fiber membranes derived from poly(ethylene glycol) (PEG) containing hybrid materials for CO2/N2 separation

Advances in the design of co-poly(ether-imide) membranes for CO2 separations. Influence of aromatic rigidity on crystallinity, phase segregation and gas transport

“…It is known that poly(ethylene oxide) (PEO) compounds give excellent results for the CO 2 separation from other light gases due to the existence of favorable electronic interactions with the ether moiety [11][12][13]. In consequence, block-copolymers combining aromatic and PEO polyimides appear to be a successful route [14,15].…”

Study on interface structure and performance of homogeneous-reinforced polyvinyl chloride hollow fiber membranes

“…In the past studies, there were three approaches to be proposed to reduce the infiltration for the microporous composite membranes, namely, annealing, quenching and pre-wetting [15]. Annealing reduced the substrate pore sizes which retarded the intrusion process, but this increased in liquid entry pressure or breakthrough pressure to penetrate into or across the membrane [16].…”

“…Quenching increased the viscosity of coating solutions which made the intrusion process much difficult, but it also decreased the membrane permeability [17]. Compared with the above methods, pre-wetting temporarily sealed substrate pores and eliminated intrusion paths, so that the intrusion of the coating solution into the membranes pores can be minimized [15,18]. For the preparation of the HR membrane, the pre-wetting method was the best path to reduce the infiltration.…”

High Molecular Permeance Dual-Layer Ceramic Membrane for Capturing CO<sub>2</sub> from Flue Gas Stream

“…The bulk of greenhouse gases in the atmosphere can be curtailed by regulating the rate at which gases are being emitted [1]. In addition, development of advanced techniques to mitigate these emissions has been suggested by some researchers [2]- [4]. A number of methods have been acknowledged to separate the CO 2 from flue gas mixture.…”

“…Absorption of carbon dioxide via amine based solvent remains the leading process, particularly in large scale processes. However, membrane is a developing technology and holds great potentials for bulk gas separation [2] [5]. CO 2 separation by absorption using monoethanolamine (MEA) solvent is well known to be too costly.…”