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)
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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 2018/19, 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 2018/19, 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) | Separation Processes 2 | 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.
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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. |
Additional Information
| Graduate Attributes and Skills |
Not entered |
| Keywords | Not entered |
Contacts
| Course organiser | Prof Xianfeng Fan
Tel: (0131 6)50 5678
Email: x.fan@ed.ac.uk |
Course secretary | Mr Mohammed Kareem Connor Shaikhuzzaman
Tel: (0131 6)51 3559
Email: kareem.shaikhuzzaman@ed.ac.uk |
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