Lecturer: Dr. Xijun Hu
Tutor: Mr. Shizhang Qiao
Aims:
This subject is to enable students to understand the principles and processes of adsorption, chromatography and membrane separation; to design an adsorber, a membrane unit to achieve a specified separation; to optimize a chromatographic system.
Textbook:
D.D. Do, “Adsorption Analysis: Equilibrium and Kinetics”, Imperial College Press, 1998.
References:
R.T. Yang, "Gas Separation by Adsorption Processes", Butterworths, Boston, 1987.
D.M. Ruthven, "Principles of Adsorption and Adsorption Processes", John Wiley & Sons, New York, 1984.
S.D. Faust and O.M. Aly, "Adsorption Processes for Water Treatment", Butterworths, Boston, 1987.
J.A. Jonsson, "Chromatographic Theory and Basic Principles", Marcel Dekker, Inc., New York, 1987.
R.L. Grob, "Modern Practice of Gas Chromatography", 3rd ed., John Wiley & Sons, Inc., New York, 1995.
C.J. Geankoplis, "Transport Processes and Unit Operations", 3rd ed., Prentice Hall, Englewood Cliffs, New Jersey, 1993.
W.L. McCabe, J.C. Smith, P. Harriott, "Unit Operations
of Chemical Engineering", 5th ed., McGraw-Hill, New York, 1993.
Assessments:
Assignments: 20%
Mid-semester test: 40%
Final Exam: 40%
Lecture Outlines
| Week | Lecture | Content |
| 1 | Introduction | Adsorption processes - why? how?
Practical adsorbents Forces of adsorption |
| 2 | Adsorption Equilibrium (single component) | Ideal Langmuir and BET models
Gibbs adsorption isotherm and related models Dubinin - Polanyi theory |
| 3 | Adsorption Equilibrium (multi-component) | Extended multicomponent Langmuir
Ideal adsorbed solution theory (IAST) |
| 4 | Adsorption Kinetics
- elementary treatment |
Resistances to mass transfer in
practical systems
Principles of diffusion in porous media Uptake rate in batch systems Experimental measurement of intraparticle diffusivities |
| 5 | Adsorption Column Dynamics | Equilibrium theory: analogy with
kinematic wave equation
Breakthrough curve Asymptotic behaviour - constant and proportionate patterns The LDF approximation and more realistic models |
| 6,7 | Adsorption Processes | Regeneration methods
Thermal swing, pressure swing and displacement systems Cyclic batch and continuous counter-current operation McCabe-Thiele analysis and numerical simulation |
| 8 | Mid-Term Test | |
| 9
10 |
Chromatographic Separation | Basic principles
Optimizing separations in gas chromatography |
| 11 | Membrane Processes | Introduction, classification of
membrane processes
Dialysis, gas permeation Flow patterns |
| 12 | Membrane Processes | Reverse osmosis |
| 13 | Membrane Processes | Ultrafiltration |
| 14 | Review | |
| 15 | Final Examination |