Undergraduate Course: Thermodynamics and Unit Operations 3 (CHEE09017)
Course Outline
School  School of Engineering 
College  College of Science and Engineering 
Credit level (Normal year taken)  SCQF Level 9 (Year 3 Undergraduate) 
Availability  Available to all students 
SCQF Credits  20 
ECTS Credits  10 
Summary  Thermodynamics covers the concepts of Gibbs Free Energy and chemical potential and their relationship to both phase equilibrium and chemical reaction equilibrium in heterogeneous systems and multiple simultaneous reactions. Mixing rules for Equations of State (EoS) are introduced as well as calculation of vapour pressure from EoS.
In the Unit Operations part, simplified binary distillation processes are extended to the most general multi component case. Efficient short cut methods are explored and the principles behind accurate numerical solution procedures for multi component absorption, stripping and distillation processes are introduced; ratebased mass transfer operations for packed columns in application to absorption and stripping are considered and finally basic design principles of adsorption, humidification and drying processes are summarised.
Thermodynamics and unit operations are coordinated to deliver appropriate thermodynamics learning to inform unit operations topics 
Course description 
For clarity Unit Operations and Thermodynamics topics are presented separately, actual delivery may not follow this pattern.
Thermodynamics Topics:
1.Statement of the VLE problem. The Gibbs phase rule. Definition of the Chemical Potential m. Extensive vs intensive thermodynamic properties. Euler's theorem of homogeneous functions. Partial molar quantities.
2.ClausiusClapeyron equation. VL curve. VS curve. LS curve. Interpolation of vapour pressure data. Prediction of vapour and sublimation pressures from CC equation. Chemical potential of a mixture. Fugacity and fugacity
coefficients. Composition dependence of the chemical potential. Ideal mixtures. Activity and activity coefficients.
3.Fugacity of a component in a liquid mixture. Pressure dependence of the chemical potential. Poynting correction factor. Fundamental VLE equation: gf and ff approach. Simplified versions of the gf approach. Vapour pressure equations. Excess Gibbs energy and activitycoefficients. T vs x,y and P vs x,y diagrams positive and negative deviations.
4. Dew point and bubble point calculation. Calculation of binary T vs x,y, P vs x,y and y vs x plots. Example VLE with azeotrope. Isothermal flash calculation. Example of a binary flash. GibbsDuhem equation. Thermodynamic consistency of VLE data. Partial pressures from total pressure data. Example of ethanolwater isothermal data. Gasliquid equilibrium. Relationship between symmetric and asymmetric activity coefficients. Liquidliquid equilibrium. Solidliquid equilibrium.
5. Sources of thermodynamic data. Two and three parameter law of corresponding states. Prediction of critical constants and acentric factor: Joback and Ambrose methods. Prediction of vapour pressure.
6. Equations of State (EOS). Cubic equations of state (EOS). Parameters from critical constants. Helmholtz free energy (A). Calculation of vapour pressures from EOS. Residual functions and thermodynamic properties from A. Lee and Kesler EOS and tables. Example of LK and SRK.
7. Mixing rules for EOS. MichelsenKistenmacher syndrome. Fugacity coefficients from EOS. Advanced mixing rules for cubic EOS. Properties of EOS at infinite pressure. Sample calculation of VLE using EOS.
8. Thermodynamic models in Aspen/UniSim. Things to watch for in using computer codes Styreneethylbenzene example. Thermoworkbench examples. GCEOS.
9. Chemical reaction equilibria. Extent of reaction. Heat of reaction. Equilibrium constant and its temperature dependence. Reference states in common applications. Multiple chemical reactions reactors in series and Lagrange multipliers.
Unit Operations Topics:
1. Introduction to Unit Operations; Equilibrium stage operations; Thermodynamics of distillation
2.Binary distillations review
3.Multicomponent Distillation: Short Cut Methods
4.Mass transport theories review
5.Packed bed columns
6.Humidification:Principles and methods
7.Drying: Principles and methods
8.Adsorption: Principles and methods

Entry Requirements (not applicable to Visiting Students)
Prerequisites 

Corequisites  
Prohibited Combinations  
Other requirements  None 
Information for Visiting Students
Prerequisites  None 
High Demand Course? 
Yes 
Course Delivery Information
Not being delivered 
Learning Outcomes
On completion of this course, the student will be able to:
 Apply the phase rule to determine degrees of freedom and show how these may be satisfied.
 Describe the significance of Chemical Potential in mixtures and understand phase equilibria formulations. Ability to solve vapour liquid equilibrium of non ideal mixtures.
 Understanding of simultaneous reactions at equilibrium.
 Apply the principles of mass, heat transfer and thermodynamics to analyze and synthesize chemical engineering processes.
 Use short cut and graphical methods in design of multicomponent distillation, absorption, stripping and other processes. Analyze critically advantages and disadvantages of various design options and parameters (stage vs. packed columns)

Reading List
1. Warren L. McCabe, Julian C. Smith and Peter Harriot, Unit Operations of Chemical Engineering, (Fifth Edition). McGrawHill, 1993.
2. Robert E. Treybal, Mass Transfer Operations (McGrawHill Classic Textbook Reissue Series).
3. J.D. Seader and Ernest J. Henley, Separation Process Principles, John Wiley & Sons, 1998.
4. Coulson and Richardson, Chemical Engineering Vol 6, Ed. by R.K. Sinnott, 3rd Edition, ButterworthHeinemann, 1999.
5. M. S. Shell, Thermodynamics and Statistical Mechanics. New York: Cambridge University Press (2015)
6. A. Z. Panagiotopoulos, Essential Thermodynamics. Princeton, NJ: Drios Press (2011)
7. Poling B., Prausnitz J.M. & O'Connell J.P., The Properties of Gases and Liquids, 5th Ed., 2000. McGrawHill.
8. Perry R.H. and Green D.W., Perry's Chemical Engineers' Handbook. 7th Ed., 1997. McGrawHill 
Additional Information
Graduate Attributes and Skills 
Not entered 
Keywords  Thermodynamics,Equilibrium,Separation 
Contacts
Course organiser  Dr Simone Dimartino
Tel: (0131 6)50 5598
Email: Simone.Dimartino@ed.ac.uk 
Course secretary  Mr Mark Owenson
Tel: (0131 6)50 5533
Email: Mark.Owenson@ed.ac.uk 

