DOC/LP/01/28.02.02

/ LESSON PLAN / LP- CL9111
LP Rev. No: 00
Date: 27/08/2012
Page of 5
Sub Code & Name : CL9111 Advanced Reaction Engineering Unit: Branch: Chemical Engineering Semester : I

Unit syllabus: KINETICS OF HETEROGENEOUS REACTIONS

Catalytic reactions, rate controlling steps, Langmuir-Hinshelwood model, Rideal-Eiley mechanism, steady state approximation, noncatalytic fluid-solid reactions, shrinking and unreacted core model.

Objective: To impart knowledge on catalytic reactions and to develop the rate-controlling model for heterogeneous reactions, in which diffusion, and reactions controlling the reaction rate influence the rate of reaction and to arrive at the relationship for complete conversion for the different types of reactors.

SessionNo / Topics to be covered / Time min / Ref / Teaching Aids
1 / Introduction / 50 / 1&2 / BB & Chalk
2 / Catalytic reactions / -do- / 1&2 / -do-
3 / Rate controlling steps / -do- / 1&2 / -do-
4 / Langmuir-Hinshelwood model for adsorption / -do- / 1&2 / -do-
5 / Eley-Rideal Mechanism and steady state approximation / -do- / 1&2 / -do-
6 / Non-Catalytic Fluid Solid reactions / -do- / 1&2 / -do-
7 / Unreacted Core Model with Gas film/Ash layer/ Chemical reaction controls / -do- / 1&2 / -do-
8 / Shrinking core model with Gas film/Chemical reaction controls / -do- / 1&2 / -do-
9 / Problems / -do- / 1&2 / -do-
10 / Review / -do- / 1&2 / -do-


Unit syllabus: EXTERNAL DIFFUSION EFFECTS IN HETEROGENEOUS REACTIONS

Mass and heat transfer coefficients in packed beds, quantitative treatment of external transport effects, modeling diffusion with and without reaction

Objective: To develop the Knowledge of the impact of Mass and heat transfer effects on heterogeneous reactions.

SessionNo / Topics to be covered / Time min / Ref / Teaching Aids
11 / Mass Transfer coefficient in packed beds / 50 / 1&3 / BB & Chalk
12 / Heat Transfer coefficient in packed beds / -do- / 1&3 / -do-
13 / Qualitative Treatment of External Diffusion effects – Isothermal Behaviour / -do- / 1&3 / -do-
14 / Qualitative Treatment of External Diffusion effects – Non-isothermal Behaviour / -do- / 1&3 / -do-
15 / Effect of External Diffusion on selectivity / -do- / 1&3 / -do-
16 / Stable operating Conditions – Negligible Mass Transfer Resistance / -do- / 1&3 / -do-
17 / CAT I / 60
18 / Stable operating Conditions – Finite Mass Transfer Resistance / -do- / 1&3 / -do-
19 / Modelling Diffusion with reaction / -do- / 1&3 / -do-
20 / Modelling Diffusion without reaction / -do- / 1&3 / -do-
21 / Problems and review / -do- / 1&3 / -do-


Unit syllabus: INTERNAL TRANSPORT PROCESSES IN POROUS CATALYSTS

Interpellet mass and heat transfer, evaluation of effectiveness factor, mass and heat transfer with reaction.

Objective: To discuss the Internal Transport processes in porous catalysts.

SessionNo / Topics to be covered / Time min / Ref / Teaching Aids
22 / Introduction to Interpellet Mass Transfer / ER / 1,2&3 / BB & Chalk
23 / Gaseous Diffusion in single cylindrical pores / -do- / 1,2&3 / -do-
24 / Diffusion in liquid and porous catalyst / -do- / 1,2&3 / -do-
25 / Interpellet Heat Transfer / -do- / 1,2&3 / -do-
26 / Effectiveness factor / -do- / 1,2&3 / -do-
27 / Significance of Intrapellet Diffusion / -do- / 1,2&3 / -do-
28 / Evaluation of Effectiveness factor / -do- / 1,2&3 / -do-
29 / Mass and Heat Transfer with reaction / -do- / 1,2&3 / -do-
30 / Non-Isothermal effectiveness factors / -do- / 1,2&3 / -do-
31 / Problems and review / -do- / 1&3 / -do-
32 / CAT II / 60


Unit syllabus: ANALYSIS AND DESIGN OF HETEROGENEOUS REACTORS

Isothermal and adiabatic fixed bed reactors, non-isothermal and non-adiabatic fixed bed reactors. Two-phase fluidized bed model, slurry reactor model, trickle bed reactor model. Experimental determination and evaluation of reaction kinetics for heterogeneous systems

Objective:

SessionNo / Topics to be covered / Time min / Ref / Teaching Aids
33 / Introduction to Design of Heterogeneous Catalytic Reactors / 50 / 1&2 / BB & Chalk
34 / Construction and Operation of Fixed Bed Reactors / -do- / 1&2 / -do-
35 / Design Problems in Fixed Bed Reactors / -do- / 1&2 / -do-
36 / Isothermal Operation of Fixed Bed Reactors / -do- / 1&2 / -do-
37 / Adiabatic Operation of Fixed Bed Reactors / -do- / 1&2 / -do-
38 / Non-isothermal and Non adiabatic Fixed Bed reactors / -do- / 1&2 / -do-
39 / One Dimensional Model / -do- / 1&2 / -do-
40 / Two Dimensional Model / -do- / 1&2 / -do-
41 / Dynamic Behaviour / -do- / 1&2 / -do-
42 / Variations of Fixed Bed Reactors / -do- / 1&2 / -do-
43 / Fluidized Bed Reactors / -do- / 1&2 / -do-
44 / Slurry Reactors / -do- / 1&2 / -do-
45 / Determination and evaluation of reaction kinetics for heterogeneous systems / -do- / 1&2 / -do-
46 / Trickle Bed Reactors / -do- / 1&2 / -do-
47 / Problems and Review / -do- / 1&2 / -do-
48 / CAT III / 60


Course Delivery Plan:

Week / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12
Units / UNIT I / UNIT II / CAT1 /
UNIT III / CAT2 /
UNIT IV / CAT
3

References :

  1. Carberry, J. J., “Chemical and Catalytic Reaction Engineering”, Dover Publications, 2001.
  2. Froment, G. F. and Bischoff, K. B., “Chemical Reactor Design and Analysis”, 2nd Edition, John Wiley & Sons, New York, 1997.

3. Smith J.M., “Chemical Engineering Kinetics ", 3rd edition, McGraw-Hill, New York, 1981.

Prepared by / Approved by
Signature
Name / T.KAVITHA / Dr R.PARTHIBAN
Designation / Assistant Professor / Professor & Head / CH
Date / 27/08/2012 / 27/08/2012