CH3030 Applications of Mass Transfer


Objectives:

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.