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TEMPERATURE SWING ADSORPTION PROCESSES FOR GAS SEPARATION

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TEMPERATURE SWING ADSORPTION PROCESSES FOR GAS SEPARATION ( temperature-swing-adsorption-processes-for-gas-separation )

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Table 2.1. Simulation parameters and material properties (Mark, 1999; Lee, 2007; Determan et al., 2011) Parameter Value ε 0.55 MF 1 L1m thFS Pin Pout T0 TDeso Nnodes kads cP,ads ρpoly kpoly cP,poly ρFS kFS cP, FS eps 25 μm 5500 kPa 5400 kPa 25°C 200°C 100-1 -1 1.2Wm K 800 J kg-1 K-1 1270 kg m-3 0.22 W m-1 K-1 1460 J kg-1 K-1 2200 kg m-3 1.3 W m-1 K-1 740 J kg-1 K-1 10-6 m 2.2.1.1 Mass and heat transfer resistances For the mass and heat transfer resistance determination, the mass and heat transfer coefficients are calculated using Churchill equations (Churchill, 1977a; Churchill, 1977b) and the effective diffusion coefficient approach, which also involves calculation of the mean free path for the mixture of CH4 and CO2 is followed (Cussler, 1997). Equations (2.1) and (2.2) are used to calculate the mass and heat transfer resistances, respectively. The thermo-physical properties of the adsorbent layer, ρw, cp,w, and kw are calculated using appropriate weighted average methods from the adsorbent and binding polymer properties (Pahinkar et al., 2015). (2.1) lnRw,mid  1R Req,Mass,i    h  hm  Peri 2 Deff ,i 24

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