CH3030 Applications of Mass Transfer


In chemical engineering practice, several mass transfer operations are involved. This course is aimed at teaching the use of principles of mass transfer in design of these operations.

Course Contents:

Stage wise concept: Material balance, co-current, cross current and counter current stages Gas Absorption and Extraction: Material Balance, Minimum solvent requirement, Kremsers Equation, Use of efficiencies, number of transfer units (NTU) and height of transfer units (HTU) concepts Distillation: Raoult’s law, relative volatility, ideal and non ideal systems, flash, batch and counter-current distillation, McCabe Thiele method, Packed tower distillation, Height equivalent to a theoretical plate (HETP) concepts Liquid-Liquid Extraction: Single and Multistage cross- and counter-current operations. Graphical methods. Adsorption – Stage-wise concepts, differential adsorption, concept of breakthrough curves, Ion Exchange, Chromatography, Extraction / Leaching Humidification / Dehumidification: Use of psychrometric charts, adiabatic saturation curves, simultaneous heat and mass transfer. Adiabatic and non adiabatic operations – design. Drying: Simultaneous heat and mass transfer. Batch Drying. Design of continuous drying operations. Membrane Separations: Calculation of membrane flux, mechanisms of membrane transport, applications of membrane separations Simulation of Mass Transfer Applications

Text Books:

Mass Transfer Operations, RE Treybal, 3rd Edition, McGraw Hill, 1980.

Reference Books:

Separation Process Principles, JD Seader and EJ Henley, 2nd Edition, Wiley, 2006.