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150 120 90 60 30 0 0 120 240 360 480 600 Time [sec] 720 0 120 240 360 480 600 720 Bed-1 Bed-2 Bed-3 a Bed-1 b Figure 4.2 Pressure history for all 3 beds during one entire cycle (left) and pressure history for only bed-1 during one entire cycle (right) of experiment E-1. The purity and recovery increases for increased γ. A high γ implies a higher flow of the purge gas which forces more CO2 to desorb from the adsorbent and exit the bed during the LR step. The bed regenerates better by increasing γ resulting in less CO2 breakthrough during the F step. As a result, the recovery of CO2 in the heavy product increases with increasing γ. However, as the total effluent gas exiting the LR step was recycled back to the HR step, a higher γ pushes the high concentration wave front further down the bed. For a given value of γ chosen for operation, one of two scenarios can happen. The higher concentration wave front can be contained inside of the bed depending on how far it travelled through the bed during the HR step or it might breakthrough through the light of the bed for a higher value of γ resulting in loss of CO2, which causes lower CO2 recovery. The purity also increases as γ was increased. With increasing γ, the high concentration wave front propagates further down the bed during the HR step, which in turn increases the loading of CO2 in the solid phase. All CO2 adsorbed during the HR step subsequently 24 Time [sec] Pressure [kPa]PDF Image | Development of a Pressure Swing Adsorption (PSA) Cycle for CO2 Capture
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CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
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