Development of a Pressure Swing Adsorption (PSA) Cycle for CO2 Capture

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Development of a Pressure Swing Adsorption (PSA) Cycle for CO2 Capture ( development-pressure-swing-adsorption-psa-cycle-co2-capture )

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100 90 80 70 60 100 98 96 94 92 90 Recovery Purity 0 5 10 15 CnD Pressure [kPa] Figure 4.3 Effect of CnD pressure (i.e. pressure ratio, π) on CO2 purity and CO2 recovery in the heavy product. This proves that the purity of CO2 in the heavy product does not only depend upon the propagation of the higher concentration wave front during the HR step but also on the low pressure during the CnD step. The effect of temperature on the CO2 recovery and purity is shown in Figure 4.4. Both CO2 recovery and purity decreases initially for 70 °C and then increases in the experiment performed at 100 °C. The temperature plays an important role in determining the working capacity of the adsorbent. A higher temperature also helps desorb the heavy component during the CnD and LR step. 27 CO2 Recovery [%] CO2 Purity [%]

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