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This course introduces mass transfer theories, mass transfer in stage-wise and continuous contacting equipment, mass transfer design equations as applied to selected unit operations.
Course Objectives:
The course is intended:
Detailed Course description:
Introduction to Mass Transfer.
Classification, Direct Contact of two Immiscible phases, Phases separated by membrane, and Direct contact of Miscible Phases.
Interphase Mass Transfer
Equilibrium, Diffusion between phases, Local Two-Phase Mass Transfer, Local Overall Mass-transfer Coefficients, Materials Balances, Steady-State cocurrent Processes, Steady-State Countercurrent Processes, Stages, Cascades, Cross-Flow Cascades, Countercurrent Cascades.
Gas Absorption
Equilibrium solubility of gases in liquids.Two-Component Systems.Ideal Liquid solutions.Non-ideal Solutions. One Component transferred and associated materials balances for countercurrent flow, and cocurrent flow. Minimum Liquid-Gas Ratio for absorbers.
Distillation.
Vapour-Liquid Equilibria.The Pressure-Temperature-Concentration Phase diagram.Constant-Pressure Equilibria.Constant_Temperatureequilibria.Relative volatility.Raoult’s Law.Positive Deviations from ideality and consequences, Negative deviations from Ideality and concequences. Multistage towers. Method of Ponchon-Savarit. Method Of McCabe-Thiele.
Equipment for Gas-Liquid Mass transfer Operations
Sparged vessels, mechanically agitated vessels, Tray towers, Bubble-cap trays, sieve trays. Design of tray towers, weirs, downspouts, perforated plates, etc. Packed towers.Packings.
Mode of Delivery:
Lectures, assignments, tests and tutorials.
Kampala International University,
Box 20000, Ggaba Road, Kansanga, Kampala
+(256) 392 001 816
+(256) 752 800 802