Mass Transport (CHE 335)

Course Topics

Introduction to role of mass transfer in separation processes
Molecular diffusion; General law for diffusion and convection;
Equimolar counter diffusion, transfer across stagnant layer, Varying area
Prediction of diffusion coefficient in gases and liquid; Diffusion in solids
Convective mass transfer coefficients; Transport phenomena analogy
Mass transfer correlation for different geometries
Knudsen diffusion
Theory of single and multiple equilibrium contact stages,
Design of tray towers for absorption
Interface mass transfer; Two resistance theory,
Relationship between overall and individual mass transfer coefficients
Detailed design of packed beds
Use of equilibrium theory to compute NTU and HTU
Detailed design of absorption column for both dilute and concentrated solutions
Pressure drop and packing characteristics of absorber and diameter calculation