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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calculated ε and ω, which are critical in the species conservation equation (Table 4.4). The adsorbent mass loading, MF for all these microchannels is constant at 15.67 (94% adsorbent mass compared to 6% binder mass). This value of MF is 29 times greater than the curve fitted value of 0.54 for the PLOT columns discussed above and is expected to generate a pronounced heat of adsorption as well as greater adsorbent capacity in the experiments.  binder MFads 1 ads binder MFads V D2D2th2L 4 (4.36) Calculated Calculated w Mtotal Vw ads Vw binder 1 hh Table 4.5. Calculation of packing properties of adsorbent layer Test section th # 1 2 3 30 4 5 6 20 Adsorbent-binder mass per unit length×10-6 -1 [m] [μm] [kg m ] L ε ω [-] [-] 22.12 28.48 11.46 9.61 0.22 0.686 0.303 0.25 0.603 0.384 0.25 0.60 0.765 0.227 0.66 0.90 0.802 0.190 From Table 4.5, it can be seen that ε for these adsorbent-coated microchannels ranges from 0.6 to 0.8, while it was estimated to be 0.8 for the PLOT columns tested for breakthrough. Additionally, the range of ω for the adsorbent-coated microchannels is from 0.190 to 0.384, while it was estimated to be 0.09 for the tested PLOT columns. These quantitative data show a definite improvement in adsorbent layer packing 137

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