Effect of velocity variation due to adsorption-desorption on equilibrium data from breakthrough experiments

Kinetics of hydrocarbon adsorption on activated carbon and silica gel

“…In this study, breakthrough experiments of methane, ethane, and propane in activated carbon and silica gel beds were determined for three different temperatures, two particle sizes as well as various gas interstitial velocities and bed pressures. The experimental apparatus, procedure, and analysis of the dynamic column breakthrough experiments have been detailed in earlier publications (Malek et al, 1995;Malek and Farooq, 1996a). Table 1 provides some relevant data on the adsorbents used as well as other information regarding the experiments conducted.…”

“…text of modeling the equilibrium data of methane, ethane, and propane in activated carbon, with the ultimate objective of developing a multibed, multicomponent PSA simulation model for hydrogen purification from refinery fuel gas. Equilibrium data reported in that article were obtained by the dynamic-column breakthrough (DCBT) method, which was detailed in two other publications (Malek et al, 1995;Malek and Farooq, 1996a). Similar breakthrough studies have also been conducted in a silica gel bed (Malek, 1996).…”

Propylene/propane mixture adsorption on faujasite sorbents

“…Based on the breakthrough and desorption profiles the adsorbed amounts of both components were calculated using mass balance equations (Malek et al 1995). The results of these calculations are shown in Fig.…”

“…In a breakthrough setup multiple breakthrough and desorption profiles were recorded at three temperatures (318, 358 and 408 K) and various partial pressures for a 50 : 50 propylene/propane mixture. Based on the breakthrough and desorption profiles, the binary adsorption data were calculated using simple mass balance equations (Malek et al 1995). The outcome is compared with the Ideal Adsorbed Solution (IAS) theory (Myers and Prausnitz 1965) using the single component adsorption isotherms recorded with the volumetric technique.…”

Adsorption and regeneration study of the mesoporous adsorbent SBA-15 adapted to the capture/separation of CO2 and CH4

“…The adsorptive separation coefficient between two gases was evaluated on the basis of breakthrough curves (Malek et al, 1995;Malek and Farooq, 1996). On the basis of mass balance over the adsorption bed, one can determine the amount adsorbed for component k (Zhou et al, 2005b):…”