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Fax: 337-475-5286
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Lake Charles, LA 70609
engineering@mcneese.edu http://mcneese.edu/ceet/eng

Chemical Engineering - CHEG 313

Mass Transfer Options

• Understand and be able to apply Fick’s law in a binary system
• Understand and relate fluxes in different frames of reference
• Be able to estimate diffusion coefficients for gases using some the common semi-empirical equations
• Understand the effects of temperature and pressure on diffusion coefficients of gases
• Be able to estimate diffusion coefficients for liquids in non-electrolyte solutions using some the common semi-empirical equations.
• Solve simple diffusion problems via differential equations using mass balance (continuity equations) and Fick’s law: different coordinate systems, with and w/o reactions  
• Understand diffusion thru stagnant film and equimolar counter diffusion
• Solve binary mass transfer problems using local mass transfer coefficients as well as overall mass transfer coefficients for systems of stagnant film and equimolar counter diffusion
• Be able to determine material balances and minimum solvent rates of single-component absorption operations
• Be able to use local mass transfer coefficients as well as overall mass transfer coefficients to determine tower heights
• Be knowledgeable the hydraulics of a packed column in particular being able to determine the pressure drop and the tower diameter.
• Be knowledgeable of the various types of common packing including the relationship between efficiency and capacity as well the effects on tower hydraulics

Prepared by: Dr. Richard Robinson