Duration
30h Th, 10h Pr, 5h Labo.
Number of credits
| Master of Science (MSc) in Chemical and Materials Engineering | 4 crédits |
Lecturer
Language(s) of instruction
English language
Organisation and examination
Teaching in the first semester, review in January
Schedule
Units courses prerequisite and corequisite
Prerequisite or corequisite units are presented within each program
Learning unit contents
This course presents concept of unit operations, based on equilibrium as well as heat and mass-balance equations. The applications to the following physical unit operations are described:
- Distillation: Different configurations: mono- and multi-stage distillation, continuous and discontinuous. Coupling between heat and mass balance. McCabe-Thiele and Ponchon-Savarit methods. Types of columns, design rules, equipment efficiencies (theoretical stage, tray efficiency).
- General stage-wise description of counter-current processes. Balances and operating lines.
- Gas-liquid absorption-desorption: stage-wise description, HTU-NTU method. Relation between number of theoretical stages and number of transfer units.
- Liquid-liquid extraction: different configuration of mono- and multistage mixer-settler. Concept of theoretical stage. McCabe-Thiele method, Hunter-Nash method. Types of extractors, design.
Learning outcomes of the learning unit
At the end of the course, students will be able to apply theoretical concepts and the analysis methodology of different physical unit operations. They know different types and their characteristics of physical unit-operation equipment. They will use the concepts to describe mathematically different types of physical unit operations realized in the different equipment types. They will be able to apply the concept of theoretical stages and will be able to apply the graphical methods for equipment design.
Exercise and laboratory sessions in small groups will help the students to develop more transverse skills as team-working, solving numerical problem, critical analysis of experimental data, assessment of the validity of a theoretical approach and report writing.
Prerequisite knowledge and skills
The course Chemical-Engineering Thermodynamics CHIM0009-3, "Eléments de thermodynamique" CHIM0286-1, and "Transport phenomena" CHIM0022-4 (or courses with similar contents) should have been attended during previous years (or they should be attended the same year).
Planned learning activities and teaching methods
The course is based on ex-cathedra lectures (30 h) and practical courses (15 h) including exercises and laboratory sessions.
The ex-cathedra lectures are dedicated to the detailed description of the fundamental concepts necessary for the analysis and mathematical as well as graphical representation of unit operations.
Practical courses include exercise sessions during which students learn how to solve problems related to unit operations.
During laboratory sessions, students work in small teams. They have the opportunity to get familiar with operating different unit operation on small pilot-plant scale.
Participation to laboratory sessions is mandatory. Each of these sessions has to be prepared by carefully reading the corresponding laboratory notes, which will be checked by an entrance test. If the entrance test is not passed, access to the laboratory sessions may be denied.
If it is not possible to realize the lab sessions in person, the equipment will be presented via video, original experimental readings will be supplied as basis for the preparation of the lab report.
Mode of delivery (face to face, distance learning, hybrid learning)
Face-to-face, the course can be organized via video, where regular online-discussion sessions will be offered.
Organisational adjustments related to the current health context
For code yellow and orange the options for teaching and exams are mentioned in the corresponding sections.
The lectures are offered via distance learning as podcast videos with regular opportunities to contact the lecturer in bi-weekly Lifesize meetings for Q&A-sessions, which start at the planned lecture time. The corresponding dates are communicated in the first lecture.
The lab is canceled, instead a video will be made available, which shows the equipment. For the reports, experimental readings will be supplied, which are to be evaluated. Otherwise all other regulations apply.
The exams will be organized as oral exams via Lifesize.
Recommended or required readings
The course material is available on the eCampus website. Additional information (exercises and laboratory notes) will also be made available on the eCampus website during the course.
Assessment methods and criteria
Below you will find information on the evaluation methods planned for in-person and remote exams as well as those planned for hybrid sessions. Depending on how the health crisis evolves, the chosen method will be communicated to you no later than one month before the start of the exam session.
Any session :
- In-person
written exam ( open-ended questions )
- Remote
oral exam
- If evaluation in "hybrid"
preferred remote
Additional information:
A written exam is organized during the first session in January.
The exam consists of exercise problems to be solved, which are similar to those presented during exercise sessions. At least 50% of the points are required to pass.
It is a closed-book exam. Students receive a formulary with all relevant equations for solving the problems together with the exam problems.
Moreover, a report of the laboratory sessions must be provided by the students within 2 weeks after these sessions. This report must present the obtained experimental results, their critical analysis, as well as answers to the questions presented in the laboratory notes. The deadline for delivering the report will also be included explicitly in the lab instructions. If the report is not received by the deadline indicated, it is graded as 0 points.
The global mark is a weighted average of the marks obtained at the written exam (80 %) and the laboratory (report and entrance test) (20 %).
If the lab session will not be realized in person, the lab report is nevertheless mandatory. In case written exams are still complicated via COVID-19, oral online exams will be realized.
The second session exam is organized in the same way as in January. The mark obtained for the laboratory report is maintained.
Both exams may be oral, if the number of students is 5 or less. In case of oral exams, the exam can be held via video conference.
Work placement(s)
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Organizational remarks
The course will be presented in English.
The course is organized during the first quadrimester.
The calendar of laboratory sessions will be communicated in October.
The lecture will be held as podcast accessible via myULiège and YouTube. The discussion sessions are held via lifesize:
- meeting: PUO I
- meeting link: https://call.lifesizecloud.com/5216256
- meeting code: 5216256
- start: September 23, 13:45
Contacts
Andreas Pfennig PEPs - Products, Environment, and Processes Department of Chemical Engineering University of Liège Quartier Agora, Allée du six Aout 11, Bâtiment B6c, office 1/66 phone: +32 4 366-3521 e-mail: andreas.pfennig@uliege.be www.chemeng.uliege.be/Pfennig