In the experiments planned to test the reuse of the regenerated amines, the absorbent solution was continuously circulated in a closed cycle while it was absorbing CO2 in the absorber (set at 293 K) and simultaneously regenerating amine in the desorber (set at 388 K).
Calcium chloride has been used as the absorbent solution.
The mass transfer performance is usually affected by the wetting of the packing surface with absorbent solution, and the wetted surface can be affected by interfacial disturbances resulting from the gradient in surface tension between water vapor and absorbent solution.
A microdroplet (16.9 μL) of an absorbent solution (ethanol/water) was used to collect vapor phase VCIs.
Effects of different operating and design parameters, including concentration of aqueous ammonia solution and NaOH solution, absorbent solution volume flow rate and total gas flow rate on CO2 removal efficiency were investigated.
In addition, the interfacial behaviors were observed from water droplet positioned on the surface of absorbent solution, and the surface stress was defined and calculated to analyze how mass transfer performance was affected by the stress.
