Carbon Dioxide Capture by Pressure Swing Adsorption

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Carbon Dioxide Capture by Pressure Swing Adsorption ( carbon-dioxide-capture-by-pressure-swing-adsorption )

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Rafael M. Siqueira et al. / Energy Procedia 114 (2017) 2182 – 2192 2189 Table 3. Langmuir model parameters used in simulation process Langmuir model parameter qm (kmol kg-1) b (bar-1) Ea (J mol-1) 3.2. Column dynamics and PSA runs CO2 N2 6.123 2.876 0.5550 0.1134 -16180 -15072 Experimental and simulated breakthrough curves with 10% of molar concentration at 6, 12 and 20 bar are presented in Figs. 5a and 5b, for CO2 and N2, respectively. The simulated curves are in good agreement with the experimental results at all different all studied conditions for both gases. The breakthrough curves for the mixture CO2/N2 diluted in helium at 6 bar are exhibited in Fig. 5c. In accordance to the equilibrium data (isotherms) one can notice that N2 leaves the column earlier than CO2, indicating higher retention capacity for the latter. Fig. 5 - Breakthrough curves for (a) CO2, (b) N2 and (c) CO2/N2 in He. Symbols are experimental data and continuous lines simulations.

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