Undergraduate Course: Separation Processes 2 (CHEE08013)

Course Outline
School	School of Engineering	College	College of Science and Engineering
Credit level (Normal year taken)	SCQF Level 8 (Year 2 Undergraduate)	Availability	Available to all students
SCQF Credits	10	ECTS Credits	5
Summary	Separation processes introduces an equilibrium stage approach to absorption/stripping, distillation, solvent extraction. Graphical methods are introduced as well as the concepts of minimum number of stages, minimum solvent or stripping agent rate and minimum reflux ratio. The concept of humidity and the use of psychrometric charts are introduced. In addition, training in group and collaborative working and communication skills is undertaken. Two laboratory sessions on separation processes are undertaken as part of this course.
Course description	Lectures The following subjects will be covered during the course: 1. Descriptions of separation processes, stages, cascades, co- and countercurrent flows. 2. Phase equilibrium: gas-liquid, liquid-vapour etc. vapour pressures and relative volatility. 3. Material balance calculations on separation cascades. Mole fraction and mole ratio coordinates, graphical representation, the operating line. 4. Effect of L/V ratio in absorption. Minimum L/V ratio. Stripping and minimum V/L. 5. Distillation: rectifying and stripping sections, material balances. Constant molal overflow. 6. Balances over top plate/condenser and bottom plate/reboiler. 7. Feed plate location and the q-line. McCabe-Thiele construction. 8. Minimum reflux ratio and minimum number of stages. Fenske equation. 9. Partial condensers, multiple feed/product streams. 10. Stage efficiencies and design of plate columns. Selection of reflux ratio. 11. Use of triangular diagrams for ternary systems. Phase boundaries and tie-lines. Solvent extraction. 12. Overall mass balance and sum point. 13. Stage-to-stage mass balance and difference point. Stagewise graphical solution. Minimum solvent:feed ratio. 14. Solvent extraction equipment. 15. Absolute and relative humidities, wet and dry-bulb temperatures, specific volume and enthalpy of humid air. Laboratories Students will work on two of the following: 1. Othmer Still (distillation) 2. Sieve Tray Hydraulics (distillation) 3. Dropwise Solvent Extraction (solvent extraction) 4. Continuous Liquid-Liquid Extraction (solvent extraction) 5. Ternary Phase Diagram (solvent extraction)

Entry Requirements (not applicable to Visiting Students)
Pre-requisites		Co-requisites
Prohibited Combinations		Other requirements	None

Information for Visiting Students
Pre-requisites	None
High Demand Course?	Yes

Course Delivery Information

Academic year 2015/16, Available to all students (SV1)		Quota: None
Course Start	Full Year
Timetable	Timetable
Learning and Teaching activities (Further Info)	Total Hours: 100 ( Lecture Hours 20, Seminar/Tutorial Hours 10, Supervised Practical/Workshop/Studio Hours 6, Formative Assessment Hours 1, Summative Assessment Hours 3.5, Programme Level Learning and Teaching Hours 2, Directed Learning and Independent Learning Hours 57 )
Assessment (Further Info)	Written Exam 80 %, Coursework 20 %, Practical Exam 0 %
Additional Information (Assessment)	90 Minute degree exam (80%) and laboratory (20%) Visiting students (100% exam)
Feedback	Not entered
Exam Information
Exam Diet	Paper Name		Hours & Minutes
Main Exam Diet S1 (December)	Separation Processes 2		1:30
Resit Exam Diet (August)			1:30

Academic year 2015/16, Part-year visiting students only (VV1)		Quota: None
Course Start	Semester 1
Timetable	Timetable
Learning and Teaching activities (Further Info)	Total Hours: 100 ( Lecture Hours 20, Seminar/Tutorial Hours 10, Formative Assessment Hours 1, Summative Assessment Hours 1.5, Programme Level Learning and Teaching Hours 2, Directed Learning and Independent Learning Hours 65 )
Assessment (Further Info)	Written Exam 100 %, Coursework 0 %, Practical Exam 0 %
Additional Information (Assessment)	90 Minute degree exam (80%) and laboratory (20%) Visiting students (100% exam)
Feedback	Not entered
Exam Information
Exam Diet	Paper Name		Hours & Minutes
Main Exam Diet S1 (December)			1:30
Resit Exam Diet (August)			1:30

Learning Outcomes
On completion of this course, the student will be able to: Perform graphical or algebraic design calculations for binary distillation, absorption from insoluble carrier gas into a non-volatile solvent, desorption from non-volatile solvent into an insoluble carrier gas and solvent extraction cascades for type II systems. Select feasible solvent/stripping agent rates and reflux ratios. Describe the principles by which economic reflux ratios are selected. Determine the properties of humid air using a psychrometric chart.

Reading List
1. Unit Operations of Chemical Engineering McCabe and Smith (McGraw-Hill International, Student Edition) 2. Coulson & Richardson's Chemical Engineering Vol. 2 Particle Technology and Separation Processes, Richardson & Harker with Backhurst.