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Influence of gas flow rate for silica gel based CO2 capture

https://doi.org/10.3390/ma14143885

“The dependence of the feed flow on the breakthrough period for the SG is depicted in Figure 9a. The volumetric flow rates in the range from 2 to 5 lpm varied at a constant temperature of 298 K and a 1.30 bar pressure. A flow rate of 2 lpm contributed to a breakthrough period of 447 s that is significantly lower than the period reported for the AC at the same feed mixture rate. The saturation and breakthrough times reduced to 489 s and 330 s with an increased feed flow to 3 lpm. The increased feed rate of 4 lpm led to reduced exhaustion and breakthrough spans of 381 s and 228 s with 298 K and Co = 5%, respectively. The breakthrough period of 204 s was attained at an maximum feed rate of 5 lpm and T = 298 K. It can be stated that the saturation (also breakthrough) period declined with an augmented flow rate of the gaseous feed mixture.”

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Figure 9. Dependence of adsorption responses on feed flow at T = 298 K, Co = 5% (a) SG and (b) AC.”

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