The problem of unit residence time of gas in unit adsorbent
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Simply put: In the PSA design, some units use a higher gas flow rate (referring to the adsorbent per unit volume), while some units use a lower flow rate. Under different pressures, do higher flow rates and lower flow rates have a big impact on the adsorption conditions?
The gas flow rate is large and the adsorption efficiency per unit gas volume is low.； The gas flow rate is small and the adsorption efficiency per unit gas volume is high.
If the flow rate is too large, the utilization rate of the adsorbent is reduced. If the flow rate is too small, the adsorption tower cannot quickly increase the pressure to reach the optimal adsorption pressure, which also reduces the utilization rate of the adsorbent. Therefore, the optimal flow rate should be calculated. As for the calculation method, I think the poster should also have a ready-made calculation model.
Can you provide a flow rate calculation model? Thanks! Xiaweiren_2000@163.com
The gas flow rate is small and the adsorption efficiency is improved, which will cause the pressure drop to increase. The appropriate gas flow rate should be selected according to the gas demand.