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Figure 17 Spiral-wound elements and assembly.
Figure 18 Gas flow paths for spiral-wound module.
In both modules, high pressure should be maintained to ensure high
permeation rates. Table 5 lists the permeability (PM) of some gases in
different membranes. The permeation rates of different gases in a
commercial membrane is given in Table 6. It is noted from Table 6 that
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