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(c) (d) 1859 24 23 22 21 20 19 18 17 24 22 20 18 16 600 650 700 750 Bed Length(cm) 800 80 79 78 77 76 75 74 110 105 100 95 90 85 80 600 650 700 Bed Length(cm) 750 800 H purity 2 H recovery 2 CO purity 2 CO recovery 2 Figure 3: Effect of bed length at H2-PSA on (a) H2 in top product (b) CO2 in top product (c) H2 in bottom product (d) CO2 in bottom product Feed pressure at CO2-PSA: All the operating variables such as vacuum pressure, bed length, feed rate and step time are fixed, except for feed pressure. Because the amount of gas adsorbed on 13X-Ca increases as feed pressure increases, the flow of the strong adsorptive component to the bottom of the bed during desorption increases. Figure 4 shows that as feed pressure increases, the CO2 purity and recovery in top product decreases because CO2 adsorption quantity becomes larger. Furthermore, the H2 recovery in top product decreases since the amount of H2 adsorbed increases and the H2 purity in top product increases because the amount of CO and CO2 decreases in top product. As feed pressure increases, the CO2 purity in bottom product decreases as the amount of H2 flows to bottom increases. (a) (b) 40 30 18 16 14 12 10 20 8 6 10 4 2 00 456789 Feed Pressure(atm) CO2 purity CO2 recovery 95 90 85 80 75 70 65 60 55 84 82 80 78 76 74 456789 Feed Pressure(atm) H2 purity H2 recovery (c) (d) 92.8 92.6 92.4 92.2 92.0 91.8 91.6 91.4 100 98 96 94 92 90 88 86 84 82 456789 Feed Pressure(atm) 6.0 5.5 5.0 4.5 4.0 24 22 20 18 16 14 456789 Feed Pressure(%) H2 purity H recovery 2 CO2 purity CO2 recovery Figure 4: Effect of feed pressure at CO2-PSA on (a) CO2 in top product (b) H2 in top product (c) CO2 in bottom product (d) H2 in bottom product Purity(%) Purity(%) Purity(%) Recovery(%) Purity(%) Purity(%) Recovery(%) Recovery(%) Recovery(%) Recovery(%) Purity(%) Recovery(%)PDF Image | Carbon Dioxide Capture and Hydrogen Purification PSA
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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
Heat Pumps CO2 ORC Heat Pump System Platform More Info
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