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Transport Processes and Separation Process Principles (Includes Unit Operations) Fourth Edition by Christie John Geankoplis

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13.3. GAS PERMEATION MEMBRANE PROCESSES

13.3A. Series Resistances in Membrane Processes

In membrane processes with two gas phases and a solid membrane, similar equations can be written for the case illustrated in Fig. 13.2-1b. The equilibrium relation between the solid and gas phases is given by

Equation 13.3-1

where S is the solubility of A in m3 (STP)/atm · m3 solid, as shown in Eq. (6.5-5), and H is the equilibrium relation in kg mol/m3 · atm. This is similar to Henry's law. The flux equations in each phase are as follows:

Equation 13.3-2

Equation 13.3-3

Equation 13.3-4

The permeability PM given previously is

Equation 6.5-9

The permeability ...

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