Ing Ind - Inf (Mag.)(ord. 270) - MI (422) INGEGNERIA DELLA PREVENZIONE E DELLA SICUREZZA NELL'INDUSTRIA DI PROCESSO
096118 - CHEMICAL REACTION ENGINEERING AND APPLIED CHEMICAL KINETICS
Ing Ind - Inf (Mag.)(ord. 270) - MI (472) CHEMICAL ENGINEERING - INGEGNERIA CHIMICA
096118 - CHEMICAL REACTION ENGINEERING AND APPLIED CHEMICAL KINETICS
The main objective is to provide a rigorous and integrative treatment of a variety of subjects in chemical reactor design, which are relevant to and compatible with the background of most of the first-year M.Sc. Chemical Engineering students at Politecnico di Milano:
complex chemical reaction mechanisms and kinetics
principles of reactor design and analysis
transport effects in multiphase reactive systems
advanced reactor design through numerical modeling
On completion of the course, the student should be able to design/analyze a variety of complex reacting systems in both traditional and nontraditional areas of chemical engineering.
Risultati di apprendimento attesi
Lectures will allow students to:
design/analyze a variety of complex reacting systems in both traditional and non-traditional areas of Chemical Engineering
use appropriate reactor models to select desired reactor type and size for specified production rate and selectivity
quantify the effect of operating variables in various reactor types on product quality and purity and energy efficiency
design and interpret rate experiments, assess the effect of transport phenomena on observed rates, and determine the rate of reaction as a function of composition and temperature
assess the potential hazards of various reactor types in case of exothermic reactions
write and simplify appropriately the overall rate and balance equations for multiphase reactions
design reactors for heterogeneous reactions and optimise operating conditions
use RTD methods to diagnose nonideal flows in reactors and calculate conversions in nonideal reactors
demonstrate the ability to use the general reaction engineering principles in different application
Practical sessions will allow students to:
apply the theoretical aspects and the numerical techniques presented during the lessons
This course combines the study of chemical kinetics with the reactors in which they take place. The goal of this course is to allow students to model various reactor configurations, design reactors for a given reaction system, and to extract reaction kinetic and mechanism information based on system behavior. The course introduces an algorithmic approach to solve chemical reaction engineering problems to allow the students versatility in addressing a wide range of configurations and applications. Specific skills that are developed during the course include:
analytical derivation of various design models;
reactor sizing and design;
extraction and analysis of reaction kinetics;
analysis of complex reaction systems (including multiple reactions, heat effects);
use of computational tools for analyzing complex reaction systems.
Introduction: Course organization and syllabus, structure and introduction, topical outline and pre-assessment; presentation of learning objectives; introduction to methods of Chemical Reaction Engineering
Chemical Kinetics: effects of temperature and Arrhenius plot; rate expressions and rate equations for single- and multiple-reaction systems; non-unity stoichiometric coefficients; rate data analysis and determination of kinetic parameters; variable density systems; generalized stoichiometric coefficients, extents of reaction, and generalized reaction rates; autocatalytic reactions
Ideal reactors: Classification and characteristics of ideal flow reactors; simple reaction characteristics, calculation, and optimization; variable temperature and variable molar reaction, adiabatic temperature rise and expansion factor; complex response characteristics, complex reaction rate, selectivity, and yield calculations.
Non-ideal reactors: Residence Time Distribution (RTD) function, measurement of RTD and its properties; reactor diagnostics and troubleshooting. Modeling non-ideal reactors: zero-, one- and two-parameter models.
Gas-solid catalytic reactors: Classification and characteristics of gas-solid catalytic reactor; adiabatic radial flow reactor; design and optimization of multi-stage gas-solid catalytic reactor; the heat transfer and thermal stability of particles and the reactor.
Gas-liquid reaction and reactors: equilibrium of gas-liquid phase and chemical reactions; kinetics of gas-liquid reactions; design and selection of gas-liquid reactors.
Other reaction process and reactors: characteristics of fluidized bed reactors; gas-liquid-solid three-phase reactors.
Most of practical sessions will focus on the numerical modeling of chemical reactors (Matlab®/Octave required).
The prerequisite courses include advanced mathematics, principles of chemical engineering, chemical engineering thermodynamics, principles of transport phenomena, and basic knowledge of computer programming. Upon completion of the course, students should be able to master the basic theories of the reaction process and reactor analysis, and understand basic reactor types, mathematical models, reactor design, and optimization methods.
Modalità di valutazione
Written examination: questions on theoretical aspects and exercises on design and analysis of chemical reactors.
The written examination aims at assessing the ability of students:
in applying the typical chemical reaction engineering problem-solving algorithms to a variety of reactor configurations and kinetic systems through both analytical and computational approaches;
in developing critical thinking skills that allow them to challenge underlying assumptions and propose an understanding that extends beyond the proposed solution;
in questioning the proposed solution approaches to typical chemical engineering problems and identifying the parameters that can be varied in a given configuration for performances improvement.
Oral examination is considered only in special circumstances.
H.S. Fogler, Elements of Chemical Reaction Engineering. 4th Edition, Editore: Prentice-Hall PTR, Upper Saddle River (NJ), Anno edizione: 2006, ISBN: 9780130473943
O. Levenspiel, Chemical Reaction Engineering. 3rd Edition, Editore: Wiley, New York (NY), Anno edizione: 1999, ISBN: 9780471254249
G.F. Froment, K.B. Bischoff, J. De Wilde, Chemical Reactor Analysis and Design, 3rd Edition, Editore: Wiley, New York (NY), Anno edizione: 2011, ISBN: 9780470565414
M. Dente, E. Ranzi, Principi di Ingegneria Chimica, Editore: Città Studi Edizioni, Anno edizione: 1995, ISBN: 8872590698
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