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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4 Table 1.1 PSA cycles suggested in the literature for post-combustion CO2 separation PSA Cycle configuration yf pCO2 rCO2 [%] [%] [%] 5A 15 96.0 91.0 Pl Feed throughput Energy [kJ/mol CO2] Ref. 2-stage 5-step and 6-step respectively (FP,F,PE,CnD,LR,PE) FP,F,CnD,LR (FP+HPP),F,HR,PE,CnD,CnD,LR,PE (F+REC),(F,PF),HR,CnD,CnD,LR F,CoD,CnD,LPP 10 54.45 28.41 (Liu, Grande and Li) 1-bed 4-step AC 15 63.0 96.0 10 -- (Lopez, Grande and Rodrigues) (Agarwal, Biegler and Zitney) (Agarwal, Biegler and Zitney) (Haghpanah, Nilam and Rajendran) (Dantas, Luna and Silva)c,d (Marx, Joss and Hefti) (Krishnamurthy, Rao and Guntuka)c,d (Ling, Ntiamoah and Xiao) (Ling, Ntiamoah and Xiao) 2-bed 8-step 13X 15 90.0 85.0 5 - 110.9e 2-bed 6-step 13X 15 95.0 80.0 5 - 7.60e 1-bed 4-step 13X 15 90.0 90.0 3 420.66* 20.75 1-bed 4-step 2-bed 8-step FP,F,CnD,LR I-FP-F-Eq-CnD-LR-I-Eq (bottom Eq) 13X 15 36.8 90.0 AC 12 50.7 89.4 10 - - 10 - - 2-bed 4-step FP-F-CoD-CnD 13X 15 95.9 86.4 10 258.93* 74.8 1-bed 3-Step F-CnD-LPP F-Eq1-CnD-Eq2-LPP 13X 15 90 90 1 - - Operating step sequencea Adsb (FP,F,HR,CnD,LR) + [kPa] [LSTP.hr-1 kg-1] - - a Cycle-step legend: CnD-counter-current depressurization; CoD-co-current depressurization; FP-feed pressurization; F-feed or adsorption; HPP-heavy product 2-bed 6-step 13X 15 95 90 10 pressurization; HR-heavy reflux; LEE-light end equalization; LPP-light product pressurization; LR-light reflux; N-null or idle; R-recycle. bAdsorbent legend: HTlc-K- promoted Hydrotalcite; NaX, 13X-molecular sieve zeolites; AC-activated carbon. cStudies with experimental results. dMulticomponent study. *assumed a bulk density of 710 kg/m3

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