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Engenharia Química e Bioquímica

Separation Processes I

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Publication in the Diário da República: Despacho nº 10764/2011 - 30/08/2011

5 ECTS; 3º Ano, 1º Semestre, 30,0 T + 30,0 TP , Cód. 918425.

Lecturer
- Paula Alexandra Geraldes Portugal (1)

(1) Docente Responsável
(2) Docente que lecciona

Prerequisites
Not applicable

Objectives
Students must be able to interpret and use thermodynamic and operation data to perform mass and enthalpic balances, and use analytical methods, numerical methods and graphical methods, in equipment design to perform simple distillation, flash distillation and fractional distillation.

Program
1 - Thermodynamic concepts and distillation operation principles
- Vapor-liquid equilibrium curves ( VLE )
- Relative volatility
- Empirical models for non-ideal solutions
2 ? Distillation processes
2.1 Simple distillation
- Operation dynamics and quality versus quantity
- Design calculations using Rayleigh?s equation
2.2 Flash Distillation
- Operating line concept and design calculations
- Constant relative volatility (analytical method)
- Relation between vaporization fraction and operating line
- Distillers in cascade
2.3 Fractional distillation ? continuous operation
- Equipment: internals, top condensers and revaporizators
- Two component separation columns design
- Vapor-liquid contact - mass transfer ? equilibrium stage concept
- Equilibrium stage model. Simplifications
- Analytical method (Lewis ? Sorel)
- Graphical method (McCabe - Thiele)
- Reflux ratio and number of stages - Nmin and Rmin
- Rectification columns design, exhaustion columns design, columns
with side streams design and multiple feed columns design

Evaluation Methodology
Ongoin Assessment: 3 written tests
Final overall grade is the arithmetic mean of the tests.
A minimum mark of 9.5 exempts students from taking the exam.

Bibliography
- Academic Press, . (2000). Encyclopedia of Separation Science. London:
- Henley, E. e Seader, J. (2016). Separation Process Principles. USA: John Wiley and Sons
- Perry, J. (2019). Chemical Engineer's Handbook. USA: McGraw-Hill Book Company
- Richardson, R. e Coulson, J. (1988). Tecnologia Química. Lisboa: Fundação Calouste Gulbenkian

Teaching Method
Theoretical sessions involving discussion on chemical-physical principles and the design methods and theoretical-practical sessions involving exercise solving with the lecturer's support.

Software used in class
Not applicable

 

 

 


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