Lecture no. 
Title 
Keywords 
Delivered by 
1 
Introduction to catalysts and catalysis 
Catalysts and catalytic reactors, heterogeneous catalyst, activation energy, porous structure, types of catalysts, adsorption 
Sanjay Mahajani 
2 
Steps in catalytic reaction: adsorption, desorption and reaction 
Steps in catalysis, adsorption, desorption, surface reaction, types of catalytic reactors, adsorption isotherm, single site, dual site mechanisms, Langmuir Hinshelwood, Eley Rideal, Rate controlling steps 
Sanjay Mahajani 
3 
Derivation of the rate equation 
Rate controlling steps, Rate law for hetergeneous reaction, Derivation of rate equation, Catalytic sites, Equilibrium, Site balance 
Sanjay Mahajani 
4 
Heterogenous data analysis for reactor design  I 
Deduce mechanism; reactor design 
Ganesh Viswanathan 
5 
Heterogenous data analysis for reactor design  II 
Fluidized reactor; Case study: Germanium epitaxial growth 
Ganesh Viswanathan 
6 
Catalyst deactivation and accounting for it in design – I 
Deactivation; Rate law; Modes of deactivation 
Ganesh Viswanathan 
7 
Catalyst deactivation and accounting for it in design – II 
Poisoning; Fluidized CSTR; Moving bed reactor 
Ganesh Viswanathan 
8 
Synthesize the rate equation 
Experimental data, dehydrogenation of cyclohexane, validation, laboratory reactors for catalytic reactions, differential reactors, slurry reactor, least square method 
Sanjay Mahajani 
9 
Introduction to intraparticle diffusion 
Internal (intraparticle) diffusion, wall effect, tortuosity, porosity, effective diffusivity, constriction, flux, differential balance, types of rate constants and their units, concentration profile inside the catalyst, Thiele modulus 
Sanjay Mahajani 
10 
Intraparticle diffusion: Thiele modulus and effectiveness factor Part I 
Concentration profile inside the catalyst, effectiveness factor, Derivation of effectiveness factor, Thiele modulus 
Sanjay Mahajani 
11 
Intraparticle diffusion: Thiele modulus and effectiveness factor Part II 
Diffusion limited reaction, reactor design, effectiveness factor, spinning basket reactor, apparent order, apparent activation energy, nonisothermal effectiveness factor 
Sanjay Mahajani 
12 
Intraparticle diffusion: Thiele modulus and effectiveness factor Part III 
Exothermic reaction, thermal conductivity of catalyst, multiple steady states, endothermic reaction, catalyst geometries, catalyst slab 
Sanjay Mahajani 
13 
Effectiveness factor and Introduction to external mass transfer 
Effect of catalyst particle diameter, external mass transfer, boundary layer, mass transfer coefficient, rate controlling mechanism 
Sanjay Mahajani 
14 
External Mass Transfer 
External mass transfer coefficient, Reynolds number, Schmidt number, Sherwood number, interfacial area, fixed bed reactor 
Sanjay Mahajani 
15 
Implications to rate data interpretation and design I 
WeiszPrater criterion; Mears’criterion; Packedbed reactor design 
Ganesh Viswanathan 
16 
Implications to rate data interpretation and design II 
Generalized criterion; Network of first order reactions; Vector of effectiveness factors 
Ganesh Viswanathan 
17 
Packedbed reactor design 
Different configurations; Packedbed reactor design: First order reaction, Second order reaction 
Ganesh Viswanathan 
18 
Fluidized bed reactor design I 
KuniiLevenspiel model: Basic principles 
Ganesh Viswanathan 
19 
Fluidized bed reactor design II 
Different regimes; Mass transport in fluidized beds; First order reaction; resistances 
Ganesh Viswanathan 
20 
Gasliquid reactions1: Theories of mass transfer into agitated liquids 
Mass transfer into agitated liquids; Film theory, Penetration theory 
A K Suresh 
21 
GLR2: Effect of chemical reaction on mass transfer: the slow reaction regime 
Film theory, pseudofirst order, Hatta number, slow reaction regime, kinetic subregime, diffusional subregime 
A K Suresh 
22 
GLR3: Transition to fast reaction, and the Fast reaction regime 
Film theory, Enhancement factor; transition to fast reaction, Fast reaction regime 
A K Suresh 
23 
GLR4: Fast reaction example; Instantaneous reaction regime 
Film theory, second order case; Instantaneous reaction; limiting enhancement; enhancement factor plot 
A K Suresh 
24 
GLR5: Transition to Instantaneous reaction; Reaction regimes in surface renewal theories 
Film theory, transition from fast to Instantaneous reaction; Surface renewal theories, slow reaction 
A K Suresh 
25 
GLR6: Reaction regimes in surface renewal theories (contd..) 
Surface renewal theories, transition to fast reaction, fast reaction regime, comparison of surface renewal and film theories, Danckwerts’ plot, second order reaction with mass transfer 
A K Suresh 
26 
GLR7: Surface renewal theories: Instantaneous reaction and Summing up 
Surface renewal theories, Instantaneous reaction, reactor design 
A K Suresh 
27 
NOT USED 

A K Suresh 
28 
Fluidsolid noncatalytic reactions I 
Modes; Basic principles; Progressiveconversion model; Shrinking core model 
Ganesh Viswanathan 
29 
Fluidsolid noncatalytic reactions II 
Gas film diffusion control; Ash layer diffusion control; Surface reaction control 
Ganesh Viswanathan 
30 
Fluidsolid noncatalytic reactions III 
Other geometries, Combination of resistances; Case study: Dissolution of monodispersed and polydispersed particles 
Ganesh Viswanathan 
31 
Distribution of residence time 
Introduction; Nonideal reactor examples: Gasliquid CSTR, Packedbed reactor, CSTR 
Ganesh Viswanathan 
32 
Measurement of residence time distribution 
Pulse input; Step input; RTD functions: E and Fcurves 
Ganesh Viswanathan 
33 
Residence time distribution function 
Properties: Mean, variance, skewness; RTD of ideal reactors: PFR, CSTR. 
Ganesh Viswanathan 
34 
Reactor diagnostics and troubleshooting 
RTD of laminar flow reactors; RTD functions: Perfect operation, Bypassing, Dead volume 
Ganesh Viswanathan 
35 
Modeling nonideal reactors 
Combination of reactors: PFRCSTR in Series; Mixing: Macro and Micromixing 
Ganesh Viswanathan 
36 
Residence time distribution: Performance of nonideal reactors 
Segregation model; Maximum mixedness model; RTD with multiple reactions 
Ganesh Viswanathan 
37 
Nonideal Reactors: Tanksinseries model 
Nonideal reactors, tankinseries model, one parameter model, axial mixing, variance, E curve 
Sanjay Mahajani 
38 
Nonideal Reactors: Dispersion model 
Dispersion model, closedclosed vessel, openopen vessel, Peclet number, E curve 
Sanjay Mahajani 
39 
Nonideal Reactors: Dispersion model and introduction to multiparameter models 
Dispersion model, Damkohler number, conversion in nonideal tubular reactor, two parameter model, dead zones, bypass, E curve 
Sanjay Mahajani 
40 
Nonideal Reactors: Multiparameter models 
Tracer experiment, multiparameter model, ideal reactor network, E curve 
Sanjay Mahajani 