2020
DOI: 10.1134/s251775162004006x
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Effect of Gas Solubility on Efficiency of Membrane Processes with Separation of He/CH4 and CO2/CH4 Mixtures as an Example

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Cited by 4 publications
(3 citation statements)
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“…47 In a similar study, Donnelly et al reported the lightinduced cross-linking of tyramine-substituted hyaluronate, via the formation of both C−C and C−O bonded phenols. 48 The chemical structure and purity of the materials synthesized in this work were confirmed through their 1 H and 13 C{ 1 H}-NMR spectra recorded mainly in deuterated dimethyl sulfoxide (DMSO-d 6 ) at a temperature of 70 °C. In particular, the 1 H NMR spectra of the prepared copolyimides were used to determine the molar ratio between the specific comonomers within the copolymer's backbone.…”
Section: Resultsmentioning
confidence: 86%
See 1 more Smart Citation
“…47 In a similar study, Donnelly et al reported the lightinduced cross-linking of tyramine-substituted hyaluronate, via the formation of both C−C and C−O bonded phenols. 48 The chemical structure and purity of the materials synthesized in this work were confirmed through their 1 H and 13 C{ 1 H}-NMR spectra recorded mainly in deuterated dimethyl sulfoxide (DMSO-d 6 ) at a temperature of 70 °C. In particular, the 1 H NMR spectra of the prepared copolyimides were used to determine the molar ratio between the specific comonomers within the copolymer's backbone.…”
Section: Resultsmentioning
confidence: 86%
“…Therefore, the permeation through the membrane depends strongly on the solubility and diffusivity of the gas molecules, and the overall membrane performance relies on the difference between the solubility and diffusivity coefficients of those molecules. Hence, introducing new functional groups into the polymer’s backbone can (1) enhance the excess free volume within the membrane structure by altering the interchain packing (i.e., faster diffusion) or (2) increase the polymer-gas interaction to improve the gas molecules solubility. …”
Section: Introductionmentioning
confidence: 99%
“…Therefore, the growing CO 2 partial pressure in the feed gas leading to the contribution of facilitated transport to the total CO 2 permeance decline. As for CH 4 , on the one hand, the solubility coefficient and diffusion coefficient of CH 4 in the membrane decrease with the falling CH 4 partial pressure [ 30 ]. On the other hand, due to the competitive adsorption, the amount of CH 4 adsorbed on the membrane surface tends to downward with the increase of the CO 2 partial pressure.…”
Section: Resultsmentioning
confidence: 99%