RSM Modeling and Optimization of CO<sub>2</sub> Separation from High CO<sub>2</sub> Feed Concentration over Functionalized Membrane.

Polymers (Basel) · 2022 · PMC9003211 · PMID 35406245

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an increasing trendno p-value reported

Furthermore, the CO 2 /CH 4 separation factor displayed an increasing trend with increasing CO 2 feed concentration up to 42.5 mol%, and then decreased when the CO 2 feed concentration was increased further to 70 mol%.

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a decreasing trendno p-value reported

On the other hand, a decreasing trend of CO 2 permeability can be seen for temperatures ranging from 40 to 50 °C, mainly because of the CO 2 sorption isotherm, which follows the dual-mode sorption mechanism [ 25 ].

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