Energy Efficiency of Gas Separation Pressure Swing Adsorption

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Energy Efficiency of Gas Separation Pressure Swing Adsorption ( energy-efficiency-gas-separation-pressure-swing-adsorption )

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At low pressure, Nw fills volume: Vwl=^[(l-6)yB+l] (3.46) We now refer to Figure 3.8 to calculate the work required for the purge step. Again, work is only required for the purge step if PL < Po. The work calculation is broken down into two steps: Step 1-2 Extraction of the purged gas at constant pressure PL. Step 2-3 Compression of the purged gas to atmospheric pressure. Vw = 0 £ Vw - Vwi P=PL Nw Vw - Vw2 £ Figure 3.8 Stepsfor Purge Work Calculation. P=PL y=y P = P L y = 0 P=PL y=0 NPU Purge Gas From Product Piston P = Po Nw B 62

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