Gas-phase controlled mass transfer of packed columns correlated to the loading point

Experimental Study of Mass Transfer of Iodine Vapor from Air in Sodium Hydroxide Solution in a Packed Column

“…It can be seen that this effect is entirely due to the increase in a ph , which is predicted at a rate of L 0.4 . Higher liquid flow rates can produce an increased interfacial area, , resulting in a higher volumetric gas-phase mass transfer coefficient. Various researchers have reported correlations based on experimental results in which the effect of L on k G a varies from ( L ) 0.07 to ( L ) 0.45 , ,, all attributed to the increased interfacial area.…”

“…Cardozo conducted experiments in a packed tower for iodine absorption in NaOH solution with higher superficial gas and liquid velocities . The correlation developed based on the experimental results showed a marked increase in overall (gas-phase) volumetric mass transfer coefficient with the gas-phase flow rate at the rate of and a significant increase in gas-phase volumetric mass transfer coefficient of iodine at an increased liquid flow rate up to the loading point as well as at specific liquid physical properties.…”

“…Probable reasons are the absence of accurate analytical methods, difficulty in iodine accountability due to its deposition in pipelines and vessels, etc. As a result, important design and operation parameters including the mass transfer coefficient for absorption of iodine in a packed column, which is required for sizing of commercial equipment, are not available in the literature, except one published data in 1962 …”