Undergraduate Course: Separation Processes 5 (CHEE11023)
|School||School of Engineering
||College||College of Science and Engineering
|Credit level (Normal year taken)||SCQF Level 11 (Year 5 Undergraduate)
||Availability||Available to all students
|Summary||One half of this course covers adsorption and crystallization processes. The section on adsorption processes is aimed to understand how to design and operate a cyclic adsorption process and estimate its performance. To this end, we apply a mathematical method called Equilibrium Theory to various adsorption systems and learn a graphical method to construct a cyclic adsorption process cycle. The crystallisation process section comprises solid/liquid phase equilibrium, mass and energy balances and the analysis of a crystalliser (MSMPR).
The other half of the course, on distillation, comprises a discussion of composition and temperature profiles in ideal distillation columns, followed by examples and purposes of non-standard configurations and energy integration schemes for distillation. The modelling basis for tray-by-tray simulation of distillation columns is followed by a review of how azeotrope - forming mixtures can be separated. Topics include the causes of non-ideality, extractive and azeotropic distillation and composition trajectories.
Lectures 1-2: Adsorption breakthrough
Lectures 3-4: Equilibrium theory analysis of a PSA
Lecture 5: PSA scheduling
Lecture 6: Adsorption processes
Lecture 7-8: Phase equilibria in crystallization.
Lecture 9-10: Crystallizers
Lecture 11: Composition profiles in ideal distillation.
Lecture 12: Non-standard columns.
Lecture 13: Energy integration in ideal columns.
Lecture 14: Causes of non-ideality.
Non-ideal K-values: relation to activity coefficients.
Azeotropes. Pzx and Tzxzy diagrams for non-ideal and azeotropic systems.
Difficulty of separating azeotropes.
Infinite dilution K-values to predict azeotropes.
Lecture 15: Extractive distillation.
Lecture 16: Azeotropic distillation : ethanol z water z benzene example.
Lecture 17: Choice of mass separating agent.
Lecture 18: Use of pressure to break azeotropes.
Lecture 19: Non-ideal composition profiles.
Lecture 20: Distillation trajectories and distillation boundaries.
Entry Requirements (not applicable to Visiting Students)
||Other requirements|| None
Information for Visiting Students
|High Demand Course?
Course Delivery Information
|Academic year 2021/22, Available to all students (SV1)
|Learning and Teaching activities (Further Info)
Lecture Hours 20,
Formative Assessment Hours 1,
Summative Assessment Hours 2,
Programme Level Learning and Teaching Hours 2,
Directed Learning and Independent Learning Hours
|Assessment (Further Info)
|Additional Information (Assessment)
||Hours & Minutes
|Main Exam Diet S2 (April/May)||2:00|
| On successful completion of the course, students should be able to:
- Design stepwise configuration of a multi-column cyclic adsorption process by a short-cut method.
- Describe how various adsorption processes work in the context of actual industrial processes containing the adsorption.
- Describe how to configure acid gas removal processes having absorption columns.
- Construct the mass and energy balances around a crystalliser and design a crystallizer given the target specification.
- Recognise design faults from column temperature/composition profiles in distillation columns for ideal binary mixtures,
Describe tray by tray distillation methods.
- Discuss heat integration for distillation, citing and explaining a number of strategies.
- Describe and discuss the causes and consequences of non-ideality in distillation, with particular reference to Hydrogen Bonding.
- Explain features of non-ideal distillation profiles and how they differ from ideal.
- Draw flowsheets for and describe details of azeotropic and extractive distillation systems for separating non-ideal systems, including those with azeotropes.
- Sketch distillation boundaries for ternary systems, and calculate the consequent limits on separations for azeotropic systems.
|Adsorption part |
Principles of Adsorption and Adsorption Processes, 1984.Ruthven D.M. ¿ Wiley.
Pressure Swing Adsorption, 1994 Ruthven D.M., Farooq S., Knaebel K.S. ¿ Wiley.
Perry¿s Chemical Engineers¿ Handbook. 7th Ed., 1997. Perry R.H. and Green D.W., McGraw-Hill.
Unit Operations of Chemical Engineering, 1993.
MaCabe W.L., Smith J.C., Harriott P.¿ McGraw Hill.
Crystallization, 2001 (available in library as electronic resource)
Mullin J.W. ¿ Oxford.
Industrial Crystallization, 1995, Narayan S. Tavare
King CJ (McGraw¿Hill, 1984)
Distillation Design in Practice
Rose LM (Elsevier,1985)
Conceptual Design of Chemical Processes
Douglas J (McGraw¿Hill, 1988)
(Recommended to buy for both this course and CHEE10005 Chemical Engineering Design: Synthesis and Economics 4.
Chapter 7 and Appendices A.2 ¿ A.6 have some excellent material on distillation synthesis and short cut methods.
There is also a good discussion of distillation boundaries for non-ideal separations.)
Conceptual design of Distillation Systems
Doherty MF, Malone MF (McGraw¿Hill, 2001)
Systematic Methods of Chemical Process Design
Biegler LT (Pentice Hall, 1997)
|Graduate Attributes and Skills
|Keywords||Adsorption,Absorption,Crystallization,Distillation,Engineering,Process design,Process analysis
|Course organiser||Dr Hyungwoong Ahn
Tel: (0131 6)50 5891
|Course secretary||Mrs Shona Barnet
Tel: (0131 6)51 7715