Mass transfer performance of the LiCl solution dehumidification process

The driving force of the solution dehumidification process is investigated in this work, in which the parameters without the solute are used. The isothermal and non-isothermal equilibrium curves under some thermal conditions are calculated for the dehumidification process related to the LiCl solution as desiccant. Experiments based on the obtained equilibrium curves were performed for the structured packing tower with a height of 0.2 m and 0.3 m respectively. The temperature variation for the solution decreased with an increase in the solution flow rate and increased with an increasing airflow rate. But the temperature variation for the air did not display a marked trend. The average driving force and the overall mass transfer coefficients are calculated. The average driving force is investigated for different solution flow rates. The overall volumetric mass transfer coefficient increased with an increasing solution flow rate.