Physical Unit Operations 1
The lecture 'Thermal Unit Operations', which are part of the ULg lecture 'Physical Unit Operations 1', is being recorded on video and uploaded to YouTube in the playlist 'Thermal Unit Operations'. Continually further topics will be recorded and uploaded. Here the links to the individual manuscript chapters as well as to the corresponding videos are collected. Where a chapter subtitle is not associated to a video of pdf, the corresponding content is part of the previous pdf or video. Crossed out topics are planned already and will be uploaded in the near future. The numbers refer to the chapters and subchapters of the full manuscript. Not all chapters are contained in this video series, because some chapters are left for an expert course while others are relevant only for introductory lectures of non chemical engineering students. The order of the videos is that in which the course is practically presented, i.e. is arranged in a didactically feasible way. The order of chapters in the manuscript is different, because it is intended as a reference mansucript, which follows a more systematic approach.
Since the course is intended as university course, where it is expected that the students will be able to freely transfer the knowledge to other cases, the listener should expect sufficiently detailed derivations of the methods presented.
Some videos have meanwhile been synchronized in Portuguese (Brazilian). You find the playlist here.
Table of content:
pdf Thermal Unit Operations (front matter)
pdf 1 Introduction
video 1.1 Overview
video 1.2 Principles of thermal separation processes
1.3 Concept of a theoretical stage
video 1.4 Methods of thermal process design
video 1.5 Examples of thermal separation processes
1.6 Process intensification
3 Distillation, Rectification
video 3.1 Introduction and historic background
video 3.2 Single-stage distillation
video 3.2.1 Batchwise single-stage distillation
video 3.2.2 Continuous single-stage distillation
video 3.2.3 A cascade of single-stage distillations
3.4 The McCabe-Thiele method for a rectification column with arbitrary thermal state of feed
video 3.4.1 Continuous rectification (multistage distillation)
video 3.4.2 Equimolar evaporation and condensation
video 3.4.3 The rectifying section
video 3.4.4 The stripping section
video 3.4.5 The feed stage
video 3.4.6 McCabe-Thiele diagram
video 3.4.7 Limiting values and optimal choice of reflux ratio
3.7 FUG-Correlation
video 3.7.1 Nmin using Fenske’s model
video 3.7.2 vmin using Underwood’s model
3.7.3 v and N using Gilliland’s method
video 3.5 McCabe-Thiele diagram for a rectifying or stripping column
video 3.6 Batch rectification with a rectifying column
3.6.1 Constant distillate composition
3.6.2 Constant reflux ratio
3.6.3 Comparison with single-stage distillation
pdf 2 General considerations on counter-current processes
video 2.1 Step construction, general McCabe-Thiele diagram
video 2.1.1 Balancing the column or a characteristic section of a column
video 2.1.2 Side-stream withdrawal from L
2.1.3 Side-stream withdrawal from G
2.1.4 Addition of feed corresponding to an internal flow
video 2.1.5 Addition or removal of streams with arbitrary composition
video 2.1.6 Addition of transfer component to one of the carriers
2.1.7 Feed to a distillation column or as two-phase mixture
2.1.8 Intermediate heating and cooling in rectification
video 2.1.9 Distillation-column top with total condenser
2.1.10 Distillation-column top with partial condenser
2.1.11 Distillation-column bottom
2.1.12 Distillation reboiler heated by saturated vapor
2.1.13 Distillation reboiler heated by superheated vapor
video 2.1.14 Combination of several components to one complete distillation column
video 2.2 Average flowrate of components in separation equipment
2.3 Short-cut equations
video 2.3.1 Single theoretical stage
2.3.2 Multistage cross-current process
video 2.3.3 Multistage counter-current process
5 Solvent Extraction
video recapitulation thermodynamics
video 5.1 Introduction
5.2 Single-stage extraction
5.2.1 Triangular diagram
5.2.2 Distribution diagram
5.2.3 Analytical method
5.3 Cross-current extraction
5.3.1 Triangular diagram
5.3.2 Distribution diagram
5.3.3 Analytical method: Kremser-equations
5.4 Counter-current extraction
5.4.1 Triangular diagram
5.4.2 Distribution diagram
5.4.3 Analytical method: Kremser and Tiller-Tour equations
5.4.4 Design with rate-based methods for counter-current extraction columns
5.5 Solvent extraction with feed
5.6 Choice of solvent
