https://doi.org/10.3390/ma14143885
“The reliance of Co on the breakthrough profiles is depicted in Figure 10a for silica gel at 4 lpm and 298K. The various CO2 levels in the feed were adjusted with pressures controlled at 1.30 bars. The concentration Co = 2% in the feed at 298 K led to breakthrough and exhaustion periods of 300 s and 466 s with a flow rate of 4 lpm. The breakthrough and exhaustion spans were reduced to 278 s and 416 s with an increased level of the initial adsorbable gas in the feed at Co = 3% level. The breakthrough period was further reduced to 270 s with an augmented Co to 4% with 298 K and 4 lpm. The exhaustion period was further reduced to 392 s by increasing the CO2 level to 5%. The findings suggest that the breakthrough span reduces by increasing the feed rates. Prolonged breakthrough and exhaustion times are always required for an increased CO2 uptake.”