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Chemical Reactors

Code:

TPD024

Sigla:

RQ

Áreas Científicas
Classificação	Área Científica
OFICIAL	Engenharia Química e Industrial

Ocorrência: 2021/2022 - 2S

Ativa?	Yes
Unidade Responsável:	Processos em Engenharia Química e Biológica
Curso/CE Responsável:	Undergraduate in Oil & Gas Technologies

Ciclos de Estudo/Cursos

Sigla	Nº de Estudantes	Plano de Estudos	Anos Curriculares	Créditos UCN	Créditos ECTS	Horas de Contacto	Horas Totais
TPD	29	Study Plan	2	-	5	60	135

Língua de trabalho

Portuguese

Objetivos

The aim of this curricular unit is to present topics of intermediate and advanced level for the selection and sizing of different types of reactors ideal and real. After completed this curricular unit, students should have able to identify important parameters in the selection criteria of chemical reactors and measure different types of reactors, calculate time and spatial distribution of residence time in chemical reactors and determining the causes for deviation to the ideal behavior of the reactors.

Resultados de aprendizagem e competências

N/A

Modo de trabalho

Presencial

Programa

1. Introduction to chemical reactors.
2. Energy balance of a chemical transformation. Kinetics. Half-life time. temperature influence.
3. Selection criteria of reactors. Main features of a reactor. Homogeneous, discrete and continuous reactors. Different types of reactors comparison. Material and energy balance formulation. Residence time and space time. Stirring design and classification.
4. Material and energy balances, characteristic equation, scaling under isothermal, adiabatic and industrial applications: a) single-phase batch reactors in the transient regime. b) continuous tubular reactors. c) continuous stirred tank reactors (CSTR). Association in series of continuous reactors.
5. Distribution of residence times. Deviations causes from the ideal behavior of the reactor RTD function for PFR and CSTR reactors in series. Reactors with the RTD function design, segregation model, maximum mixing model.

Bibliografia Obrigatória

A. M. Nunes dos Santos; Reactores Químicos, vol I, Fundação Calouste Gulbenkian, 1990. ISBN: 9723105195
H. Scott Fogler; Elements of Chemical Reaction Engineering, 4rd edition, Prentice-Hall,, 2006. ISBN: 9788521613152
M. Smith; Chemical Engineering Kinetics,, McGraw-Hill, 1981
F. Lemos, J. M. Lopes, F. Ramôa Ribeiro; Reactores Químicos, Colecção Ensino da Ciência e Tecnologia, IST, 2002

Métodos de ensino e atividades de aprendizagem

Theoretical-practical classes’ uses the expository technique to transmit the concepts proposed, stimulating the reasoning and critical thinking of students. Furthermore it is also proposed in an autonomous way the resolution of examples and exercises for the application of the concepts outlined above

Continuous evaluation (presencial) 
1st test *0.5 + 2nd teste *0.5

Continous evaluation (ámoodle plataform EaD) 
1º teste * 0.5 + 2º teste * 0.5

Exame evaluation: 100% Exame



In case it is not possible to take the test/exam in person, due to the SARS-CoV-2 pandemic, teachers may require students to take an oral test to all students who have obtained a rating equal to or greater than 9.5 values. The final grade will be obtained in the oral test.

Tipo de avaliação

Distributed evaluation with final exam

Componentes de Avaliação

Designation	Peso (%)
Teste	100,00
Total:	100,00

Componentes de Ocupação

Designation	Tempo (Horas)
Estudo autónomo	75,00
Frequência das aulas	60,00
Total:	135,00

Obtenção de frequência

N/A

Fórmula de cálculo da classificação final

Continuous evaluation (presencial) 
1st test *0.5 + 2nd teste *0.5

Continous evaluation (ámoodle plataform EaD) 
1º teste * 0.5 + 2º teste * 0.5

Exame evaluation: 100% Exame



In case it is not possible to take the test/exam in person, due to the SARS-CoV-2 pandemic, teachers may require students to take an oral test to all students who have obtained a rating equal to or greater than 9.5 values. The final grade will be obtained in the oral test.