Calculating the efficiency of mass transfer columns based on analogy of momentum and mass transport in bubbling layer on trays

Model of multicomponent mass transfer in a turbulent bubbling bed based on the concept of an active site

“…The phenomenon of intensive mass transfer at the short distance from the gas outflow opening was referred to as the input effect or active site [1][2][3][4][5][6][7][8]. The active site is characterized by the maximum driving force of trans port processes and low diffusion resistance, since the boundary layer is very thin in this area.…”

“…or in the transformed coordinate system, we will have (14) where = = Equation (14) for transfer of ith component through the boundary layer has the form (15) Assuming that the main resistance to mass transfer is concentrated in the viscous sublayer, by analogy with the binary systems [1,2], for the pseudobinary mix ture, one can write (16) where coefficient ≈ is adopted by Levich model [15].…”

“…VOLUMETRIC COEFFICIENTS By analogy with the binary mixtures [1,2], volu metric coefficients can be written as (21) [ ]…”

“…Based on expressions (3)-(6), the formula for cal culating the area of the interface of the active surface of the inlet section on bubbling plate is obtained as fol lows [1][2][3]:…”

“…The aim of this work is to apply and develop a mathematical model of mass transfer [1][2][3] for describing multicomponent transport processes in tur bulent gas or vapor liquid layer on the plates for the mixtures with similar physicochemical properties of the components, as well as obtaining the equations for determining the square matrix of volumetric coeffi cients of mass transfer.…”