Unit operations for fluid-fluid separation (distillation, absorption/stripping, liquid-liquid and solid-liquid extraction). Operating principles and methods for the selection, sizing and choice of equipment applicable to these unit operations.
Contribution of the activity to the AA referential:
- AA 2.1 and 2.2
- AA 3.1
- AA 5.3, 5.4, 5.6
At the end of this course, the student will be able to :
- understand the theoretical bases and practically apply the operating principles, as well as the selection, sizing and equipment choice methods applicable to unit operations for fluid-fluid separation.
- use the ASPEN + process simulator for each of the studied techniques.
The contribution of this Teaching Unit to the development and command of the skills and learning outcomes of the programme(s) can be accessed at the end of this sheet, in the section entitled “Programmes/courses offering this Teaching Unit”.
- Through one collective assignment : presentation slides and report.
- Individually : quality of the expression during the presentation et ability to answer the questions
- Individually during an examination composed of one written part (problems resolution and/or restitution of theoretical developments presented during the course) and one oral part (short questions/answers on other parts of the course material, without preparation).
The method of the course consists of 14 lectures by the course teachers, completed by 10 workouts sessions supervised by assistants. Some of the latter are based on 'paper-pencil' computations, the others are based on the use of the ASPEN+ process simulation software.
The course covers successively the following topics:
- Diffusion theory. Fick's law and Stefan's law. Convective and molecular transfer coefficients. Analogy between heat and mass transfer.
- Continuous and batch distillation of binary and multi-component mixtures. Graphical (McCabe and Thiele) and numerical sizing methods. Simplified ("shortcut") and rigorous methods. Trayed column design (equipment, efficiency and capacity).
- Absorption of one or more components into a liquid, with of without a chemical reaction. Stripping. Packed column hydrodynamics. Different types of packing and absorbers.
- Liquid-liquid extraction. Single stage and multiple stages, with or without reflux. Extractor types and selection criteria. Supercritical extraction.
- Solid-liquid extraction basics (the principles and equipment).
- Copy of the presentation slides. These documents are available on Moodle.
- Reference book : Separation Process Principles, Third Edition, Henley, Seader and Roper, Editorr John Wiley & Sons, 2011, ISBN-13: 978-0470646113.
It is highly recommended to have attended a Thermodynamics - Phase equilibria course LMAPR1310 or similar.
