| Code |
8649
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| Year |
3
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| Semester |
S2
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| ECTS Credits |
6
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| Workload |
TP(60H)
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| Scientific area |
Industrial Chemistry
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Entry requirements |
--
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Mode of delivery |
Classroom teaching
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Work placements |
Not applicable
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Learning outcomes |
In this CU it is intended that:
1. The student learn how to identify the different unit operations from the chemical industry, classify them
based on physical-chemical principles and transport phenomena involved, know their design variables and
calculation methodology.
At the end of the CU students should be able to:
2. Perform size analysis of particulate solids and understand the concept of Bond diameter.
3. Understand the movement of particles in a fluid and determine the settling rate.
4. Know the different types of filters and apply filtration basic equations.
5. Understand leaching and liquid-liquid extraction and write balances and equilibrium relations to
determine the number of stages to achieve a specific yield.
6. Characterize gas-vapour systems and use psychrometric charts.
7. Understand vapour-liquid equilibrium and write equilibrium equations and mass balances to determine
the number of theoretical plates in distillation or gas absorption columns.
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Syllabus |
1. Unit Operations in Chemical Engineering.
2. Operations with granular solids – Milling and sieving: form factor, medium and Bond diameters, sieving
analysis, milling energy.
3. Solid-fluid separation – Sedimentation: basic equations for settling rate of large and small sized
particles; Filtration: Filters type, filtration modes and basic equations.
4. Bleaching and Liquid-liquid extraction with immiscible solvents: Nomenclature, equilibrium equations
and mass balances.
5. Humidification and drying: humidity indexes, wet and dry bulb temperatures, psychrometric charts, air
conditioning.
6. Gas absorption and striping: Whitman theory, film coefficients, mass balances.
7. Distillation: liquid mixtures, activity coefficients and relative volatility, operation and equilibrium curves,
placement of the feed plate, theoretical plates.
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Main Bibliography |
M. Fátima Costa Farelo; Ana M. Carreira Lopes,"Processos de Separação", UBI, Covilhã.
Azbel, D.S.; N. Cheremisinoff, "Fluid Mechanics and Unit Operations", Ann Arbour Science, The
Butterworth Group.
Coulson, J.M.; Richardson, J.F., "Tecnologia Química", vol. II (Operações Unitárias), F. Calouste
Gulbenkian ed., Lisbon.
Coulson, J. M.; Richardson, J.F., "Tecnologia Química" , vol III, F. Calouste Gulbenkian ed., Lisbon.
Foust, A.S.; Wenzel, L.A., Clump, C.W.; Maus, L.; Andersen, L.B.; "Principles of Unit
Operations".
Gomide, R.; "Operações Unitárias", 1 º volume (Operações com Sólidos Granulares).
Gomide, R.; "Operações Unitárias", 3 º volume (Separações Mecânicas).
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Teaching Methodologies and Assessment Criteria |
The teaching-learning activities consist of theoretical-practical lectures. The lectures where the theoretical concepts are explained are interactive, and exposure of matter aims to encourage the participation of
students in the lesson. In the theoretical-practical lessons where practical questions are to be solved, the
teacher only guides the students with general comments and only gives theoretical explanations when a
general difficulty in solving the proposed problem is observed.
EVALUATION
Evaluation comprises 3 tests and/or 1 exam. The students that succeeded by frequency (in the tests) are
dispensed from the exam.
To obtain frequency: The arithmetic mean of the 3 tests has to be at least 6 values.
To be approved by frequency: Arithmetic mean of 3 tests equal to or higher than 10, with a minimum of 6 in
each test.
To be approved by Exam: Exam mark equal to or higher than 10 values.
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Language |
Portuguese. Tutorial support is available in English.
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