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Figure 3.3. Schematic showing limits of product recovery from the purification process. ...................................................................................................................75 Figure 3.4. Product purity vs. process capacity compared with PSA and TSA processes (Kapoor and Yang, 1989; Olajossy et al., 2003; Pahinkar et al., 2016)........77 Figure 3.5. Product purity vs. CH4 recovery compared with the PSA and TSA processes in the literature (Kapoor and Yang, 1989; Olajossy et al., 2003; Pahinkar et al., 2016) ....................................................................................................78 Figure 3.6. Component-wise energy requirement for the baseline case...........................80 Figure 3.7. Variation of energy ratio plotted with process capacity for variable feed times. ...................................................................................................................81 Figure 3.8. (a) Effect of reduction in desorption temperature on operating adsorption swing capacity, seen as the difference between adsorption stage peak value near 1 s and lowest value after cooling stage at 7 s. (b) Effect of drop in temperature on product purity. ....................................................................84 Figure 3.9. Water temperature at the microchannel outlet for the TSA cycle for the baseline case (100 kPa). Green region shows the 0.69 s for which the water exits the microchannel at 200°C, while cooling has already commenced near the microchannel inlet.................................................................................88 Figure 3.10. Modified energy ratio calculations with reduced pressure drop cases. More than 50% reduction in the energy ratio is possible with reduction of ΔP by 75%. ...........................................................................................................89 Figure 3.11. (a) Process capacity vs. product purity (b) CH4 recovery vs. product purity (c) CO2 separation capacity vs. CO2 specific energy requirement with the updated operating process conditions (Kapoor and Yang, 1989; Olajossy et al., 2003; Bounaceur et al., 2006; Clausse et al., 2011; Pirngruber et al., 2013; Krishnamurthy et al., 2014; Luis, 2016; Pahinkar et al., 2016). .........92 xiiiPDF Image | TEMPERATURE SWING ADSORPTION PROCESSES FOR GAS SEPARATION
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