Feed pressure carbon dioxide flux

Fig. 9.25. Flux of hydrogen (O), helium (V), carbon dioxide (+) and sulphur hexafluoride A as a function of temperature at a feed pressure of 100 kPa. After Vroon et al. [72-74].

In a heart-lung device generally higher partial oxygen feed pressures are applied, i.e. P02 = 0.9 bar. Silicone membranes with a thickness of 100 pm and a P02 = 600 Barrer and a PC02 = 3200 Barrer are used for the oxygen and carbon dioxide transfer Calculate the oxygen flux... 

The PPO hollow fibres were tested for gas permeation performance using pure carbon dioxide and pure methane gases at a pressure of 100 psig. The hollow fibre modules were used with the feed gas on the bore side of the fibres, and permeate collected from the shell side. Each module contained one to three fibres about 35 cm in length. Experiments were usually carried out with six modules, three modules containing fibres prepared under one set of conditions, and the other three containing fibres prepared under a different set of conditions. For each hollow fibre the carbon dioxide permeate flux and the pure methane flux were measured. The ideal separation factor was calculated as the ratio of pure carbon dioxide permeate flux to the pure methane flux. 

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