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DEGREE REGULATIONS & PROGRAMMES OF STUDY 2014/2015
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DRPS : Course Catalogue : School of Engineering : Chemical

Undergraduate Course: Batchwise and Semibatch Processing 5 (CHEE11008)

Course Outline
SchoolSchool of Engineering CollegeCollege of Science and Engineering
Credit level (Normal year taken)SCQF Level 11 (Year 5 Undergraduate) AvailabilityAvailable to all students
SCQF Credits10 ECTS Credits5
SummaryThis course reviews types of batch processes and industries where they are employed. The equipment used in batch processes is described. Scheduling and consequent equipment sizing is explained. Topics presented in detail include: unsteady state reaction and heat transfer, crystallisation, fluid mechanics in agitated vessels, batch distillation,
Hazards associated with batch processes and the hazard and operability analysis for a batch plant are discussed.
Course description 20 Lectures and 5 tutorial sessions
Lectures
Lect. 1 and 2 Introduction to batch and semi-batch process, factors favouring batch or semi-batch processes. Typical equipment used in batch processes.
Lect. 2 and 4. Batch scheduling. Tools and techniques. Gant charts. Sizing of batch processing equipment. Dealing with bottlenecks.
Lect 5 and 6 Agitation, mixing and multiphase systems - types of agitator, flow patterns in vessels, power consumption in agitation, mixing time. Dealing with dispersed liquids, solids and gases in liquid systems. Agitation energy, mass transfer considerations.
Lect. 7, 8 and 9 Aspects of batch reactor design - revision of qualitative reactor considerations. Effect of excess reactants on time to complete reactions. Pre-equilibria - determination of observed rate constants. Competing reactions. Mixing effects in reactors.
Lect 1 and 11 Heat transfer - Heat transfer utilities. Steam usage, steam traps. Overall heat transfer coefficients in agitated, jacketed vessels. Coil heat transfer coefficients. Heating times for vessels - latent heating and sensible heat.
Lect. 12, 13 and 14. Design and scheduling of batch distillation - Simple batch distillation, Rayleigh equation, use of relative volatility, batch distillation with rectification. Operation at constant reflux, operation at variable reflux, running costs, Bogart equation distillation cuts from batch distillation. Steam and assisted distillation, principles, consideration of equilibrium, calculation of steam required
Lect 14 and 15 Crystallisation - An introduction to crystallisation, supersolubility, nucleation and growth, crystal yield, equipment and processes.
Lect 16 Filter design for batch processes.
Lect 17 Statistical process control in batch processes - Quality control, use of Shewhart and CuSum charts to monitor process performance.
Lect 18 Safety in batch and semi-batch processes - General safety in batch processes, review of Seveso disaster, batch HAZOP, humen error, thermal runaway.
Lect 19 and 2 Further case studies.
Tutorials
1. Scheduling of batch processes,
2. Mixing and agitation
3. Reactor design,
4. Heat transfer
5. Distillation
6. Crystallisation

Entry Requirements (not applicable to Visiting Students)
Pre-requisites Students MUST have passed: Heat, Mass and Momentum Transfer 3 (CHEE09013) AND Chemical Engineering Kinetics and Catalysis 3 (CHEE09010) AND Chemical Engineering Unit Operations 3 (CHEE09009) AND Solids Processing 3 (CHEE09008)
Co-requisites
Prohibited Combinations Other requirements None
Information for Visiting Students
Pre-requisitesNone
Course Delivery Information
Academic year 2014/15, Available to all students (SV1) Quota:  None
Course Start Semester 2
Timetable Timetable
Learning and Teaching activities (Further Info) Total Hours: 100 ( Lecture Hours 20, Seminar/Tutorial Hours 8, Formative Assessment Hours 1, Summative Assessment Hours 2, Programme Level Learning and Teaching Hours 2, Directed Learning and Independent Learning Hours 67 )
Assessment (Further Info) Written Exam 100 %, Coursework 0 %, Practical Exam 0 %
Additional Information (Assessment) Two hour written examination at the end of the semester.
Feedback Not entered
Exam Information
Exam Diet Paper Name Hours & Minutes
Main Exam Diet S2 (April/May)2:00
Learning Outcomes
Students should be able to:
- choose between batchwise and continuous operation for a process;
- find overall cycle times using a Gantt chart, identify and eliminate bottlenecks;
- determine reactor cycle time contributions from charge and discharge, heating and cooling, and reaction time;
- design agitators, heat transfer equipment and absorbers;
- design and schedule batch distillation columns;
- select and size filters for batchwise operation;
- conduct hazard studies for plants (including batch plants) with high material holdups and non-steady state operation.
Reading List
1. Chemical Engineering Vol. 6, Sinnott (Pergamon).
2. Unit Operations of Chemical Engineering, McCabe, Smith and Harriot.
3. Atherton J., Carpenter K., Process Development: Physiochemical Concepts, Oxford Chemistry Primers, 2005.
4.Process Heat Transfer - Kern.
5. Batch Processes E. Korovessi and Linninger, 2005.
6. Crystallization, Mullin, J.W. 4th ed 2001.
7. Statistical Process Control, G.B. Wetherill and D.W. Brown, Chapman and Hill, 1991.
Additional Information
Graduate Attributes and Skills Not entered
KeywordsNot entered
Contacts
Course organiserDr Jennifer Skilling
Tel: (0131 6)50 4863
Email: J.Skilling@ed.ac.uk
Course secretaryMr Paulo Nunes De Moura
Tel: (0131 6)51 7185
Email: paulo.nunesdemoura@ed.ac.uk
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