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CE20095: Separation processes

Follow this link for further information on academic years Academic Year: 2019/0
Further information on owning departmentsOwning Department/School: Department of Chemical Engineering
Further information on credits Credits: 6      [equivalent to 12 CATS credits]
Further information on notional study hours Notional Study Hours: 120
Further information on unit levels Level: Intermediate (FHEQ level 5)
Further information on teaching periods Period:
Semester 2
Further information on unit assessment Assessment Summary: EX-OB 100%*
Further information on unit assessment Assessment Detail:
  • Open Book Examination of more than 72 hours* (EX-OB 100%)

*Assessment updated due to Covid-19 disruptions
Further information on supplementary assessment Supplementary Assessment:
Like-for-like reassessment (where allowed by programme regulations)
Further information on requisites Requisites:
Further information on descriptions Description: Aims:
To develop key concepts in separation processes and mass transfer of relevance to the chemical engineering profession.

Learning Outcomes:
After successfully completing this unit students should be able to:
* Describe the theory of steady and unsteady state models for mass transfer across a phase boundary and carry out basic calculations;
* Design a mass transfer controlled packed column;
* Design a batch distillation column operating under constant top product composition conditions;
* Determine the reflux and stage requirement relationship for multi-component distillation columns;
* Carry out a detailed design of a separating column.

Analysis [T,F,A]
Design [T,F,A]
Problem solving [T,F,A]


* Mass transfer across a phase boundary, including the 2 film theory, penetration theory, Higbie, and Higbie-Danckwerts models;
* Mass transfer coefficients and their use in dimensionless groups and correlations to describe mass transfer;
* The role of mass transfer coefficients in the design of absorption columns;
* Concept of Number of Transfer Units and Height of a Transfer Unit;
* Batch distillation operation with constant top product composition;
* Estimation of the reflux and stage requirements for multi-component distillation processes using the correlations of Gilliland and Erbar-Maddox;
* Detailed distillation column design and operation;
* Operation of multiple-effect evaporators.
Further information on programme availabilityProgramme availability:

CE20095 is Compulsory on the following programmes:

Department of Chemical Engineering
  • UECE-AFB05 : BEng(Hons) Chemical Engineering (Year 2)
  • UECE-AKB05 : BEng(Hons) Chemical Engineering with Year long work placement (Year 2)
  • UECE-AFM05 : MEng(Hons) Chemical Engineering (Year 2)
  • UECE-AKM05 : MEng(Hons) Chemical Engineering with Year long work placement (Year 2)