A Method for Rapid Selection of Suitable Membrane Absorption Modes ‒ Hydrophobic or Hydrophilic
In membrane-based gas absorption processes, the membrane wetting has a significant influence on mass transfer. To study the effect of wettability on absorption performance and select suitable membrane absorption modes, a mass transfer model based on the interfacial partition coefficient (K) was proposed. K simply described the gas-liquid interface equilibrium and could link the relationships among various absorption systems for easy comparison. Based on the K, two extreme wetting modes of hydrophobic and hydrophilic ceramic membranes were used to investigate and compare the absorption performances between them, and combining K with the actual interfacial phase equilibrium to select a suitable absorption mode. Furthermore, the effect of the diffusion coefficients was considered to study the change in the K value at the intersection point. Here, the K introduced into the model helped to quickly determine the appropriate membrane contactor according to the absorption requirements
Year of publication: |
[2022]
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Authors: | Xu, Peng ; Kong, Xiangli ; Chen, Xianfu ; Fu, Kaiyun ; Qiu, Minghui ; Fan, Yiqun |
Publisher: |
[S.l.] : SSRN |
Saved in:
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