Reactors I
Code: 106053 ECTS Credits: 6| Degree | Type | Year |
|---|---|---|
| 2500897 Chemical Engineering | OB | 3 |
Contact
- Name:
- Julian Carrera Muyo
- Email:
- julian.carrera@uab.cat
Teaching groups languages
You can view this information at the end of this document.
Prerequisites
In order to take this subject, it is recommended that you should previously have passed the subjects of Mass and Energy balances on Chemical Engineering and Chemical Kinetics.
Objectives and Contextualisation
The objective of the subject of Reactors is that the student would be able to analyze, evaluate, design and operate ideal and homogeneous chemical reactors according to certain requirements, norms or specifications.
Competences
- Demonstrate knowledge of the different reaction, separation and processing operations for materials, and transport and circulation of fluids involved in the industrial processes of chemical engineering.
- Develop personal work habits.
- Develop thinking habits.
- Understand and apply the basic principles on which chemical engineering is founded, and more precisely: balances of matter, energy and thermodynamic momentum, phase equilibrium and kinetic chemical equilibrium of the physical processes of matter, energy and momentum transfer, and kinetics of chemical reactions
Learning Outcomes
- Apply the basic flow principles to chemical reactors.
- Apply the basic principles on which chemical reactors are based.
- Apply the concepts of homogenous chemical kinetics.
- Develop critical thinking and reasoning
- Identify, analyse and resolve balances of matter in a stationary or non- stationary state, with or without a chemical reaction, in simple chemical processes.
- Monitor the advance of a chemical reaction using the most suitable methodology.
- Obtain and apply the design equations for ideal isothermal reactors.
- Practice the fundamental laws of thermodynamics in chemical process engineering problems.
- Work autonomously.
Content
1. MOLAR BALANCES
1.1 Reaction rate
1.2 General equation of molar balance
1.3 Batch reactors
1.4 Continuous reactors
2. ISOTHERMAL REACTORS DESIGN
2.1 Definition of conversion
2.2 Design equations for batch reactors
2.3 Design equations for continuous reactors
2.4 Application of design equations for continuous reactors
2.5 Reactors in series
2.6 Reactions in gas phase
3. DESIGN OF NON-ISOTHERMAL REACTORS AT STEADY-STATE CONDITIONS
3.1 Energy balance
3.2 Adiabatic operation
3.3 Plug-flow tubular reactor at steady-state conditions with a heat exchanger
3.4 Equilibrium conversion in adiabatic operation
3.5 Continuous stirred tank reactor with a heat exchanger
4. DESIGN OF NON-ISOTHERMAL REACTORS AT NON STEADY-STATE CONDITIONS
4.1 Energy balance at non steady-state conditions
4.2 Energy balance in a batch reactor
5. RESIDENCE TIME DISTRIBUCION (RTD) IN CHEMICAL REACTORS
5.1 General characteristics
5.2 Measurement of the RTD
5.3 Characteristics of the RTD
5.4 RTD for Ideal reactors
5.5. Diagnosis and resolution of problems
6. CATALYTIC REACTORS
6.1 Design equation of a packed bed catalytic reactor
6.2 Pressure drop in catalytic reactors
6.3 Catalyst deactivation
Activities and Methodology
| Title | Hours | ECTS | Learning Outcomes |
|---|---|---|---|
| Type: Directed | |||
| Master classes | 30 | 1.2 | 1, 2, 3, 5, 6, 7, 8 |
| Problems seminars | 15 | 0.6 | 1, 2, 3, 4, 5, 6, 7, 8, 9 |
| Type: Supervised | |||
| Tutorials | 9 | 0.36 | 1, 2, 3, 5, 6, 7, 8 |
| Type: Autonomous | |||
| Autonomous student learning | 70 | 2.8 | 1, 2, 3, 4, 5, 6, 7, 8, 9 |
| Collaborative learning | 20 | 0.8 | 1, 2, 3, 4, 5, 6, 7, 8 |
Autonomous student learning: Consists of the individual work of each student and encompasses: the resolution of problems, the search for information, the reading of books, articles and cases and individual study.
Collaborative learning: It consists of carrying out group work on a part of the subject, at the teacher's suggestion.
Master classes: This consists of the teacher's presentation. Students will be shown the basic concepts and techniques with indications on how to complement and deepen the learning of the subject.
Problems seminars: Students will solve problems related to the contents exposed in the master classes. The aim is to encourage the active participation of students in these activities.
Tutorials: Meetings of small groups of students with the teacher to clarify doubts, give advice on the writing of reports, follow up group work or deal with any specific issue.
Annotation: Within the schedule set by the centre or degree programme, 15 minutes of one class will be reserved for students to evaluate their lecturers and their courses or modules through questionnaires.
Assessment
Continous Assessment Activities
| Title | Weighting | Hours | ECTS | Learning Outcomes |
|---|---|---|---|---|
| Reactor design task | 15% | 0 | 0 | 1, 2, 3, 4, 5, 6, 7, 8 |
| Reactor design test | 25% | 2 | 0.08 | 1, 2, 3, 4, 5, 6, 7, 8, 9 |
| Synthesis exam | 60% | 4 | 0.16 | 1, 2, 3, 4, 5, 6, 7, 8, 9 |
Assessment
- Process and scheduled evaluation activities
The course consists of the following evaluation activities:
Activity A, Reactor design test, 25% on the final grade. This exam will be done in person in November.
Activity B, Reactor design task, 15% on the final qualification. This work will be carried out in groups and will have to be presented in written form and in English.
Activity C, Synthesis test, 60% of the final grade. This exam will be done in person in January.
Please note that activitiy B is not recoverable.
- Programming assessment activities
The calendar of evaluation activities will be given during the first week of classes and will be made public through the Campus Vitual and the website of the Escola d'Enginyeria.
- Recovery process
75% of the final grade can be recovered in a classroom exam with theory and problems. In this make-up test, the student will be tested on all the subject matter of the course.
- Grade reviewprocedure
For each assessment activity, a review date and time will be indicated where the student will be able to review virtually the activity with the teacher. If the student does not show up for this review, this activity will not be reviewed later.
- Special qualifications
Honor's registration. Granting a grade of honor's registration is the decision of the teacher responsible of the subject. The UAB regulation indicates that the MH can only be granted to students who have obtained a final grade equal to or greater than 9.0. The teacher can grant up to 5% of MH of the total number of students enrolled.
- Plagiarism
Total or partial plagiarism of any of the assessment activities will automatically be awarded a “fail” (that is, zero) for the plagiarised item.
Plagiarism is copying from unidentified sources and presenting this as original work (this includes copying phrases or fragments from the internet and adding them without modification to a text which is presented as original).
Plagiarism is a serious academic offence. It is essential to respect the intellectual property of others, to identify any source uses, and to take responsibility for the originality and authenticity of all work produced.
- Assessment of repeating students
The repeating student will be evaluated with the same procedure as any other student.
Bibliography
1) H. Scott Fogler. Elements of chemical reaction engineering 4th edition solutions
2) O. Levenspiel. Chemical Reactor Engineering.
Software
MS Office
Polymath 6.0
Language list
| Name | Group | Language | Semester | Turn |
|---|---|---|---|---|
| (PAUL) Classroom practices | 211 | Catalan | first semester | morning-mixed |
| (PAUL) Classroom practices | 212 | Catalan | first semester | morning-mixed |
| (SEM) Seminars | 211 | Catalan | first semester | morning-mixed |
| (SEM) Seminars | 212 | Catalan | first semester | morning-mixed |
| (TE) Theory | 21 | Catalan | first semester | morning-mixed |