This note covers the
following topics: Diffusion , flick's law, modes of diffusion, Multi-components
mixture, correction of diffusivity, Diffusion in varying cross section area,
Diffusivity coefficient in liquid and gas, Mass transfer theory, Mass transfer
coefficient, wetted wall column, Absorption, equilibrium of gas and liquid,
Packed tower, Tray tower, stripping Extraction , Leaching, batch leaching,
Continuous leaching, constant under flow, Continuous leaching, Distillation ,
vapor-liquid equilibrium, Differential type, flash distillation, Continuous
distillation, Multi-feeds and side stream , lewis sorial method, Ponchon-savarit
method, Batch distillation with constant reflux ratio and with constant product
composition, Multi-component distillation, Humidification , humidity, Cooling
tower calculation, Height of cooling tower, carey method, Drying process,
Evaporation.
This note covers the following topics: Molecular
mass transport, Properties of Mixtures, Diffusion flux, Fick’s law, Relation
among molar fluxes, Diffusivity, Diffusivity in liquids, Steady State Diffusion,
steady state diffusion through a stagnant film, Diffusion in solids, Convective
Mass Transfer, Convective Mass Transfer Coefficient, Application of
Dimensionless Analysis to Mass Transfer, Convective Mass Transfer Correlations,
Single Sphere, Single Cylinder, Flow Through Pipes, Mass transfer between
phases, Simultaneous Heat and Mass Transfer, The Wet – bulb Thermometer.
The
mass transfer operations are largely the responsibility of chemical engineers,
but increasingly practitioners of other engineering disciplines are finding them
necessary for their work. The objective of this note is to provide a means to
teach undergraduate chemical engineering students the basic principles of mass
transfer and to apply these principles, aided by computational tools, to the
design of equipment used in separation processes.