Ench4rt Outline 2012

8/2/2019 Ench4rt Outline 2012

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StudyHoursRequired

80 hours in total. This includes 36 hours of contact time (lecture, tutorial, practical times andassessments), and an additional 44 hours of self-study and revision.

Prerequisitesand

Co

-Requisites

In order to register for this module, you must have achieved 50% in ENCH3RT.

PurposeoftheModule

An earlier course on chemical reactors treated ideal reactor systems. In contrast, this course illustrates the

more complex approach which is often necessary in real applications. In these cases, thermal effects, mass

transfer limitations, wall effects, complex rate expressions, multiple reactions, axial/radial diffusion, and

economic optimisation, may all be important. An analysis of heat and mass transfer in catalytic beds leads

on to case studies based on several important industrial reactions. Techniques are developed for the

modelling of these systems.

ModuleOutcomes

Candidates will be able to deal with the complex issues which become important in real industrial

installations, involving approximations, economic decisions, solutions for conditions in catalytic beds, the

effects of heat and mass transfer limitations and the choice of reactor configurations.

Modulecontent

Thermal effects, mass transfer limitations, complex rate expressions, multiple reactions, axial/radial

diffusion, and economic optimization, risk and uncertainty. Case studies based on industrial reactions

(SO2 oxidation, NH3synthesis, phthalic anhydride production in a tubular reactor, batch polymerization of

vinyl chloride, fluidised bed catalytic reactor, bio-reactor design). Techniques are developed for the

modelling of these systems.

Practical

CATALYTIC OXIDATION OF CARBON MONOXIDE

Objective of practical: Catalytic oxidation of carbon monoxide using statistical methods to identify

reaction kinetics

A differential bed reactor is maintained at an elevated temperature with a mixture of CO in O2 and N2

passing over the catalyst. Flow conditions and the temperature are varied in order to elucidate the reaction

kinetics.

University of KwaZulu-NatalSchool of Chemical Engineering

MODULE OUTLINEModule Code: ENCH4RT Credits: 8Module Title: Applied Reactor Technology 2012


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Appropriate data analysis must be performed by each group and the results presented by the group in a

mini-report (objectives, raw data, calculations, brief discussion, conclusions; NO introduction, NO

literature, NO materials and methods) during the post-practical interview.

AssessmentCriteriaandLevel

Two class tests and a final examination are used to assess understanding and measure the students ability

to solve problems using basic principles. A component of the final mark also arises from the performance

of the students in the laboratory practical, and in the subsequent post-practical group interview.

Tests -Absence

If for any reason you are absent for one of the two tests you must satisfy the course coordinator that you

have an acceptable reason, in which case you may be eligible to sit a make-up test in the last week of the

semester. If you do not present a good reason for absence you will receive a zero score.

Doctors certificates justifying absence from tests or tutorials must be presented to the course co-ordinatorwithin 1 day of the period covered by the certificate. Clinic certificates will not be accepted unless signed

by a doctor, with a registered practice number.

Lecture,Tutorial,Test&PracticalTimes&Locations:

Lectures:

One double period each week:

Thursday 2nd& 3rdperiod (08h40 - 09h25 & 09h35-10h20): Woodburn lecture theatre

Tutorials:

One single period every week:

Friday 5th period (11h25 - 12h10) (CEW) (not all periods will necessarily be used):REGISTERS WILL BE TAKEN AT TUTORIALS

Tests:

Test 1: Friday 9 March 5th period (11h25 - 12h10)

Test 2: Friday 20 April 4th and 5th period. (10h30 - 12h10)

Practical:

Located in the new laboratory extension (see schedule for your own group)

Monday 6th - 11th period (12h20 - 17h40)

Thursday 7th - 11th period (13h15 - 17h40)

PostPractical:

Post practicals will take place exactly 2 weeks after your practical in room 02-011 in the following time

slots:

Monday (14h30 - 15h15)

Wednesday (14h30 - 15h15)

Post prac bookings will be automatically generated, and may only be changed if there is a clash with

another 4th year practical.

Make-upTest:

(special cases only):


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11th May Friday 5th period (11h25 - 12h10) : (Venue to be announced)

ECSAKnowledgeAreaandOutcomes

The material in this module belongs to ECSAs categories Engineering Sciences (knowledge area 3)

and Design Synthesis (knowledge area 4). This is an ECSA exit level course, which must be passed

(together with ENCH4MT Advanced Mass Transfer) to comply with:

Exit level outcome 2: Application of scientific and engineering knowledge (Competence to apply

knowledge of mathematics, basic science and engineering sciences from first principles to solve

engineering problems). In particular the application of uncertainty and risk will be addressed in the

practical and in general design issues relating to industrial reactors.

DPRequirements

In order to be granted a Duly-Performed certificate and access to the final examination, students must

meet the following requirements:

Satisfactory completion of the practical (including post-practical) Attendance and completion of all tutorials

Assessments(andweightingtowardsfinalmark)

A class mark, which contributes 25% to the final mark, is made up as follows:

Test 1: 10% (60 min)

Test 2: 10% (60 min)

Practical: 5%

Total: 25%

The examination at the end of the semester is two hours long, and this mark, scaled by 0.75, is added to

the class mark for the final result.

Reading

Prescribed:

a) Fogler,H.S. Elements of Chemical Reaction

Engineering 3rd Edition

Prentice-Hall PTR (1999)

Recommended:

a) Rase, H.F. Chemical Reactor Design for ProcessPlants Vol. 2

John Wiley & Sons (1977) [out of print, but available in library]b) Levenspiel, O. Chemical Reaction Engineering

3rd

edition (1998)

John Wiley & Sons

c) Froment,G.F./Bischoff,K.B. Chemical Reactor Analysis and Design2nd Edition (in library) (1990)

3rd

edition (available for sale) (2010)

John Wiley & Sons

d) Rase, H.F. Chemical Reactor Design for ProcessPlants Volume 1

John Wiley & Sons (1977) [out of print, but available in library]


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e) Carberry, J.J. Chemical and Catalytic Reaction EngineeringMcGraw-Hill (1976)

References:

f) Carberry, J.J. Some aspects of catalytic reactor engineeringTrans I Chem E59 (1981) [available on LAN]

John Wiley & Sons (1972)

g) Forster, F. Improved reactor design for ammonia synthesisChem Eng, Sept (1980) [available on LAN]

h) Pierru, A. & Alexandre,C. Optimise PVC reactorHydrocarbon Processing , June (1973)

LecturerandRoomNumber:

Dr K Foxon Room 02-011 [email protected]


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Lectureslot Date Topic Lec# Date event

1

Intro 1RT1,2&3 09Feb 2 11Feb Lecture3

2FixedbedNH3 4

RT4&5 16Feb 5 18Feb Tut1

6

RT6&7 23Feb 6 25Feb Tut2

3FixedbedSO2 8

RT8&9 02Mar 9 04Mar Tut3

10

RT10&11 09Mar 4TubularPhthalic 11 11Mar Test112

RT12&13 16Mar 13 18

Mar NOLECTURES

5Fluidisedbeds 14

RT14&15 23Mar 15 25Mar Tut4

16

RT16&17 30Mar 17 01Apr Tut5

6Bioreactors 18

RT18&19 06Apr 19 08Apr Tut6

20 Test2RT20&21 13Jun 21 15Apr

Tut8

20

Apr Friday

Timetable 22

Apr Varsity

vacVarsityVac

27Apr 29Apr Varsityvac

7Polymerisation 22

RT22&23 04May 23 06May Tut7

24

RT24&25 11May 25 13May Tut9

26 MakeuptestRT26 18May 20May

March

April

May

Feb

Wednesday2ndand3rd Friday5th

Documents

Ench4rt Outline 2012