Chemical Reactor Engineering
Semester 2, 2018
Staff
Extra teaching assistants
Tajammal Munir looking after laboratory scheduling.
Teaching schedule
First six weeks are taken by Professor Mohammed Farid, second two weeks are taken by Ira Boiarkina
Calendar notes
Kinetics of multiple reactions, analysis of basic reactors – batch, plug flow, and continuous stirred tank. Performance under isothermal, adiabatic, and varying temperature. Effect of semi-continuous, counterflow and recycle on performance. Heterogeneous reactions and catalysis, diffusion and reaction in porous catalysts, effects of external mass transfer resistance, fixed and fluidised bed reactors, gas-liquid reactors. Reactor engineering for biological and electrochemical systems. Prerequisite: CHEMMAT 212, 242
Programme: 47 hours lectures/ tutorials, 9 hours lab
Reactor Engineering - The Big Picture (MMF: 3 lectures, 1 tutorial) 16/7- 19/7
Classification of Industrial Reactors (Homogenous and Heterogenous Reactors)
Principles of reaction engineering from kinetics to mass & heat transfer.
Reaction Kinetics (MMF: 3 lectures, 1 tutorial) 23/7 –26/7
Reaction kinetics, rate laws and stoichiometry, reversible reactions, experimental determination of rates of reaction, kinetics of reactions in series and parallel.
Homogeneous, Isothermal Reactors (MMF: 6 lectures, 2 tutorials) 30/07-9/08
Material balances and design equations for Batch Reactors, Continuous Stirred Tank Reactors (CSTR) and Plug Flow Tubular Reactors (PFR) for single, multiple parallel and series reactions.
Multiple CSTR and Recycle Reactors (MMF: 3 lectures, 1 tutorial) 6/8-9/8
Comparison of reactor performance, optimum design of Reactors in Series, Recycle Reactor, Semibatch Reactors.
Non-Isothermal Reactors (MMF: 3 lectures, 1 tutorials ) 13/8-16/8
The performance of batch, tubular and CSTR reactors under the conditions of adiabatic and non-isothermal operations; thermal stability of CSTR’s.
Residence Time Distribution (MMF, 2 lectures/tutorials) 20/8 – 22/8
Performance of non-ideal reactors, response analysis as a tool for reactor optimisation, residence time distribution and cumulative distribution, the Dispersion and Tank-in-Series Models.
Introduction to Heterogeneous Reactions (IB, 2 lectures) 10/9-11/09
Defining heterogeneous reactions and classifying different types, different bases for reaction rate expressions, difference between true and observed rates, deriving overall rate of reaction for in-series linear and non-linear processes
Heterogeneous Catalytic Reaction Kinetics (IB, 8 lectures 1tutorial) 12/9-26/09
Definining a catalyst and understanding how it works, catalyst charactaristics, comparison between heterogeneous and homogeneous catalysis, steps during a heterogeneous reactions, internal and external effects of mass transfer, Thiele modulus, Wagner-Weisz-Wheeler modulus, observed rates of reactions, effect of catalyst size and shape, non-isothermal behaviour in catalyst particles
Catalytic Reactors and Catalyst Deactivation (IB, 5 lectures 2 tutorials) 27/10-9/10
Packed bed, fluidised bed, batch, CSTR, moving bed heterogeneous catalytic reactor analysis, non-isothermal behaviour in reactors, non-ideal flow, catalyst deactivation and effect on reactor performance
Gas Solid Non Catalytic Reactors (IB, 5 lectures 1 tutorials) 10/10 -18/10
Models used to describe gas solid reactions. Shrinking core model: chemical reaction control, gas film diffusion control, diffusion through ash layer control.
Intended learning outcomes |
Related graduate attributes |
Related assessments |
|---|---|---|
Homogeneous, Isothermal Reactors: Comprehension of material balances and design equations for batch reactors, continuous stirred tank reactors (CSTR) and plug flow tubular reactors for single, multiple parallel and series reactions. Student will be able to compare reactor performance, reactors in series and semibatch reactors. |
ENGA01: engineering knowledge (4) ENGA03: design and solution development (4) ENGK01: theory of natural sciences (3) ENGK02: mathematical modelling (3) ENGK05: engineering design (4) ENGK06: engineering practice (4) ICHEME_A 2.2.: Fundamentals (5) ICHEME A2.2.5: Reactor engineering (5) ICHEME_A2.4.1: Process and product technology (1) ICHEME A2.4.2: Principles of processing equipment. (5) ICHEME_A4.2.1: Design practice context (0) UOA_1: Disciplinary Knowledge and Practice (4) |
Test 1 Test 2 Laboratory Exam |
Reaction Kinetics: Comprehension of reaction kinetics, rate laws and stoichiometry, reversible reactions, experimental determination of rates of reaction and kinetics of reactions in series and parallel. |
ENGA01: engineering knowledge (4) ENGA02: problem analysis (4) ENGK02: mathematical modelling (3) ICHEME_A 2.2.: Fundamentals (5) ICHEME A2.2.3: Momentum, heat and mass transfer (1) ICHEME A2.2.5: Reactor engineering (5) ICHEME A2.3.1: Empirical Correlation (0) ICHEMEA2.3.2: Maths modelling and quantitative methods (3) ICHEME A2.3.3: Numeric and computer methods for problem solving. (0) ICHEME A2.4.2: Principles of processing equipment. (5) ICHEME A 4.2.3: Design practice -calculation (0) UOA_1: Disciplinary Knowledge and Practice (4) |
Test 1 Test 2 Laboratory Exam |
Non-Isothermal Reactors : Comprehension of the performance of batch, tubular and CSTR reactors under the conditions of adiabatic and non-isothermal processes and thermal stability of CSTRs. |
ENGA02: problem analysis (4) ENGA03: design and solution development (4) ENGA05: modern tool usage (1) ENGK01: theory of natural sciences (3) ENGK02: mathematical modelling (3) ICHEME_A 2.2.: Fundamentals (5) ICHEME A2.2.3: Momentum, heat and mass transfer (1) ICHEME A2.2.5: Reactor engineering (5) ICHEMEA2.3.2: Maths modelling and quantitative methods (3) ICHEME A2.3.3: Numeric and computer methods for problem solving. (0) ICHEME_A2.4.1: Process and product technology (1) ICHEME A2.4.3: Impact of processing (0) |
Test 2 Bonus Assignment Laboratory Exam |
Reactor Engineering - The Big Picture : Students will be able to classify industrial reactors. |
ENGA01: engineering knowledge (4) ENGA03: design and solution development (4) ENGA05: modern tool usage (1) ENGK04: specialist knowledge (5) ENGK05: engineering design (4) ICHEME A2.2.2: Thermodynamics and transport (0) ICHEME A2.2.3: Momentum, heat and mass transfer (1) ICHEME A2.2.5: Reactor engineering (5) ICHEME A2.3.1: Empirical Correlation (0) ICHEME A2.4.2: Principles of processing equipment. (5) UOA_1: Disciplinary Knowledge and Practice (4) UOA_2: Critical Thinking (4) |
Test 1 Test 2 Exam |
Heterogeneous Catalytic Reactors: The student will be able to understand the differences between homogeneous and heterogeneous reactions and reaction rates and reactors (catalytic and non-catalytic). They will be able to understand the difference between true and observed rates of reaction and be able to calculate these rates. They will be able to derive the overall rate of reaction for an in-series linear and non-linear process. They will be able to understand the heterogeneous modes of action, the seven steps in a catalytic reaction. They will be able to calculate: the concentration gradient in a porous solid catalyst, the Thiele Modulus, observed reaction rate, the internal effectiveness factor, external mass transfer modulus, external effectiveness factor, total effectiveness factor and observed reaction rate, all for a single pore and entire catalyst particle accounting for different particle shape and sizes, different kinetics (first order and non-first order, Michaelis-Menten Kinetics and unknown kinetics using the Wagner-Weisz-Wheeler Modulus). They will be able to understand and be able to calculate the heat effects during heterogeneous reactions and determine how to prevent thermal runaways. The student will be able to understand the reasons for choosing and be able to size packed bed, fluidised bed, batch and well mixed heterogeneous reactors. They will be able to understand the different catalyst deactivation processes and be able to calculate the catalyst deactivation rate, the Thiele Modulus and internal effectiveness factor with deactivation and size a packed bed reactor with deactivation present. |
ENGA01: engineering knowledge (4) ENGA02: problem analysis (4) ENGA03: design and solution development (4) ENGA05: modern tool usage (1) ENGK02: mathematical modelling (3) ENGK03: abstraction and formulation (5) ENGK05: engineering design (4) ENGK06: engineering practice (4) ENGP02: range of conflicting requirements (1) ENGP03: depth of analysis required (1) ICHEME_A 2.2.: Fundamentals (5) ICHEME A2.2.2: Thermodynamics and transport (0) ICHEME A2.2.3: Momentum, heat and mass transfer (1) ICHEME A2.2.5: Reactor engineering (5) ICHEME A2.3.1: Empirical Correlation (0) ICHEMEA2.3.2: Maths modelling and quantitative methods (3) ICHEME A2.3.3: Numeric and computer methods for problem solving. (0) ICHEME_A2.4.1: Process and product technology (1) ICHEME A2.4.2: Principles of processing equipment. (5) UOA_1: Disciplinary Knowledge and Practice (4) UOA_2: Critical Thinking (4) UOA_3: Solution Seeking (4) |
Assignment Exam |
Gas Solid Non Catalytic Reactors: The student will be able to understand the salient features and differences between the Progressive Conversion Model and The Shrinking Core Model (SCM) for heterogeneous reactions. They will be able to calculate the rates, concentrations and particle diameters using the Shrinking Core Model for Particles of both Unchanging Size and changing size with Gas Film Limiting, Ash Layer Limiting, Chemical Reaction Limiting and a combination of resistances and to be able to determine the rate controlling step. They will be able to determine the reaction rates and design parameters for the non-catalytic heterogeneous plug flow and well mixed reactors. |
ENGA01: engineering knowledge (4) ENGA02: problem analysis (4) ENGA03: design and solution development (4) ENGK04: specialist knowledge (5) ENGP03: depth of analysis required (1) ICHEME_A 2.2.: Fundamentals (5) ICHEME A2.2.3: Momentum, heat and mass transfer (1) ICHEME A2.2.4: Applying principles of equilibrium to phase behavior and systems. (4) ICHEME A2.2.5: Reactor engineering (5) ICHEME A2.3.1: Empirical Correlation (0) ICHEMEA2.3.2: Maths modelling and quantitative methods (3) ICHEME_A2.4.1: Process and product technology (1) UOA_1: Disciplinary Knowledge and Practice (4) |
Exam |
Residence Time Distribution: |
ENGA01: engineering knowledge (4) ENGA02: problem analysis (4) ENGK02: mathematical modelling (3) ICHEME A2.3.1: Empirical Correlation (0) UOA_1: Disciplinary Knowledge and Practice (4) UOA_2: Critical Thinking (4) |
Test 2 Exam |
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