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KJE107 Separation and Cleaning Technology

Course description for academic year 2023/2024

Contents and structure

The course will provide a fundamental understanding of mass transfer theory with relevant applications. There is a focus on numerical solutions where the student will perform calculations on relevant industrial processes. In addition, the student will acquire experience and skills through demonstrations, a practical laboratory exercise and computer simulations. The course covers molecular diffusion in liquids and gases as well as mechanisms for mass transfer across interphases in countercurrent columns. Processes such as distillation, gas absorption, gas-liquid adsorption, humidification and drying will be studied. In addition, the process of separation of particles using hydrocyclones will be examined.

Learning Outcome

Upon completing the course, the candidate should have obtained the following learning outcome:


The student

  • can describe which mechanisms that controls mass transfer across interphases
  • can describe unit operations which concern mass transfer between different phases
  • can explain mode of operation of hydrocyclones


The student

  • can perform calculations of mass transfer in countercurrent columns
  • can perform practical work in the laboratory on operation of a continuous distillation process
  • has acquired basic skills in the use of HYSYS, a process simulation software
  • has the ability to read and understand process schematics (P&ID's and PFD)
  • can compose a laboratory journal
  • can evaluate uncertainty and sources of error in data

General competence

The student

  • is able to work in teams on both practical and written assignments
  • can demonstrate areas of use concerning mass transport of components across phase borders to enrich a selected component

Entry requirements


Recommended previous knowledge

The candidate should have credits in mathematics, fluid mechanics and physical chemistry.

Teaching methods

Lectures including problem solving. Working in teams. Practical laboratory exercise and instructions when working in the laboratory and with reports. HYSYS, a process simulation software. Mandatory submissions. Demonstrations in the laboratory.

Compulsory learning activities

Laboratory report and three written problem sets of which all need to be approved.

The fulfilled requirements are valid for six semesters (including the semester of which the work requirements were approved).


Exam in two parts:

Part 1: A written school exam, 4 hours.

The time and location for the exam will be announced on Studentweb.

Part 2: A group report.

Submission in WISEflow within deadline.

Part 1 accounts for 70 % of the final grade, while part 2 accounts for 30 % of the final grade.

The grading scale is A-F of which F is failed.

Both parts of the exam need to be passed to receive a final grade.

A written school exam may be retaken the following semester in the situation of which part 1 is not passed. The results from part 2 will remain the same in such a case.

An improved report may be submitted the following semester in case part 2 is not passed. One can only submit an improved report once. Alternatively, one can retake the report assignment next school year, in the autumn. The results from part 1 will remain the same in such a case.

Part 2 may not be re-evaluated if first passed.

Examination support material

Examination support material for part 1:

Simple calculator. More on support material.

Examination support material for part 2:

All support material is permitted.

More about examination support material

Course reductions

  • TOK009 - Stoffoverføringsprosesser og renseteknologi - Reduction: 10 studypoints