Code: | EBE0130 | Acronym: | PSEP |
Keywords | |
---|---|
Classification | Keyword |
OFICIAL | Bioprocess Engineering |
OFICIAL | Biological Engineering |
Active? | Yes |
Responsible unit: | Department of Chemical Engineering |
Course/CS Responsible: | Master in Bioengineering |
Acronym | No. of Students | Study Plan | Curricular Years | Credits UCN | Credits ECTS | Contact hours | Total Time |
---|---|---|---|---|---|---|---|
MIB | 23 | Syllabus | 3 | - | 6 | 56 | 162 |
The aim of this course unit is to illustrate the importance of separation and purification processes in the technical and economical feasibility of chemical, food, biological, and similar industrial processes, giving the students the necessary background for the selection, analysis and design of some of the most common separation processes that can be found in these industries.
The students are expected to attain the following skills:
- Identification of the basic principles governing the different classes of separation processes;
- Selection of the process(es) more adequate to accomplish a desired separation/purification;
- Simplified design of the separation equipment studied, and understanding of the influence of the different operating conditions in the separation.
Knowledge of solution thermodynamics and mass end energy balances.
INTRODUCTION: Characterization and classification of the separation processes. Notion of separating agent, recovery and purity. General criteria for the selection of separation processes.
SOLVENT EXTRACTION: The importance of solvent extraction. Liquid-Liquid and solid-liquid extraction processes. Description of the liquid-liquid and solid-liquid equilibrium. Extraction in a single equilibrium stage and in units with several equilibrium stages operating in cross and counter-current flow. Analysis of the influence of the different operating variables on the separation, using algebraic and graphic methods. Brief introduction to supercritical extraction, extraction in two aqueous phase systems, and the use of ionic liquids as solvents.
DISTILLATION: The importance of distillation in the chemical, biological and food industry. Design of flash units. Description of the vapour-liquid equilibrium. Binary distillation: application of the McCabe-Thiele method to conventional distillation columns and to columns with multiple feed streams and side products. Multicomponent distillation: the approximate method of Fenske – Underwood - Gilliland – Kirkbride. Overall efficiency. Design of tray and pack columns.
GAS ABSORPTION: Solubility of gases in liquids. Design of absorption columns for dilute solutions: Kremser equation. Design of pack columns: definition of height and number of transfer units.
EVAPORATION: Types of industrial evaporators and their applications. Economy and capacity of a system of evaporators. Calculation of the temperature of liquid solutions. Notion of boiling point rise (BPR). Analysis of a single effect evaporator. Design of multiple-effect evaporators operating in counter and co-current.
DRYING AND HUMIDIFICATION: Types of industrial dryers and their applications. Definition of absolute humidity, relative humidity, adiabatic saturation temperature, and wet bulb temperature. Use of the psychometric diagram. Drying velocity laws. Design of dryers. Brief introduction to the liofilization process.
CRYSTALLIZATION: Types of crystallizers and their applications. Introduction to the theories of nucleation. Study of the growth of single crystals and their size distribution. Mass balance to crystallizers.
Oral presentation of the theoretical concepts and analysis of problems exemplifying their application.
Designation | Weight (%) |
---|---|
Exame | 33,30 |
Teste | 66,70 |
Total: | 100,00 |
Designation | Time (hours) |
---|---|
Estudo autónomo | 106,00 |
Frequência das aulas | 56,00 |
Total: | 162,00 |
According to FEUP's regulations.
Three mid-term exams of 90 minutes.
Not applicable.
By final exam.
By final exam.