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Distillation in Practice

Source: AIChE
• Type:
• Skill Level:
Intermediate

Learn essential distillation concepts likely to be faced by process support, operations and process design engineering personnel. Along with a review of vapor/liquid equilibrium, this course covers column operation, process design and simulation issues. In addition, you will also learn about specification and selection of the appropriate distillation hardware.

Vapor-Liquid Equilibrium Ratio Demonstration

1/32   in the series Distillation in Practice
This example of a simplified two-component liquid phase of yellow and blue moles shows a distribution of components between phases. Learn how heat...

Equilibrium Diagram

2/32   in the series Distillation in Practice
This Equilibrium Diagram shows the relationship of Mole Fraction in Liquid Phase and Mole Fraction in Vapor Phase and how their compositions act in a...

Pressure-Mole Fraction Diagram

3/32   in the series Distillation in Practice
An alternative to the Equilibrium Diagram, the Pressure Composition diagram represents the bubble point, dew point and composition changes during the...

Temperature-Mole Fraction Diagram

4/32   in the series Distillation in Practice
An alternative to the Equilibrium Diagram, this Temperature Composition diagram represents the bubble point, dew point and composition changes during...

Simple Batch Distillation Phase Diagram

5/32   in the series Distillation in Practice
While not widely used in the industry, simple distillations use a single equilibrium stage to obtain separation of components. Learn how to use the...

Flash Distillation Phase Diagram

6/32   in the series Distillation in Practice
Unlike the simple distillation process, Flash Distillation has a continuous feed that ends with the liquid and vapor to be in phase equilibrium...

Multistage Distillation Column Demonstration

7/32   in the series Distillation in Practice
Multiple equilibrium stages are required to achieve a higher level of separation than is possible with a simple distillation system. Find out more...

McCabe-Thiele Graph Demonstration

8/32   in the series Distillation in Practice
The McCabe-Thiele method creates a visualization of distillation practices while providing a solution to the material balance and equilibrium...

McCabe-Thiele Equilibrium Stages Demonstration

9/32   in the series Distillation in Practice
Using the McCabe-Thiele Graph, we can approximate how many equilibrium stages are needed in the Distillation process. Learn how to use the McCabe-...

Reflux Ratio and Equilibrium Stages Demonstration

10/32   in the series Distillation in Practice
In a continuous multistage column, Liquid returned to the process from the top of the distillation column is called reflux. Using the McCabe-Thiele...

McCabe-Thiele Sample Problem

11/32   in the series Distillation in Practice
Try your hand at a sample McCabe-Thiele problem and learn how to approximate equilibrium stages and reflux ratio with AIChE’s Distillation in...

Bubble Cap Trays Demonstration

12/32   in the series Distillation in Practice
Bubble Cap Trays feature a riser with a cap on top, allowing the vapor to flow through the rise and around the cap, coming into contact with the...

Valve Trays Demonstration

13/32   in the series Distillation in Practice
Valve Trays minimize weeping by restricting the liquid flow through the tray holes. Valve trays also reduce entrainment by creating weaker vapor jets...

Sieve Tray Demonstration

14/32   in the series Distillation in Practice
Sieve Trays have dominated the tray column design for years. They have their advantages such as, minimal vapor pressure drop and inexpensiveness, and...

Structured Packing Demonstration

15/32   in the series Distillation in Practice
Structured packing is designed specifically to minimize drag, provide a large amount of surface area, and maintain a good liquid distribution. To...

Trough Distributor Demonstration

16/32   in the series Distillation in Practice
Trough Distributors consist of a series of channels which provide pour points to a packed bed inside a column, providing a greater control of pour...

Orifice-Riser Distributor Demonstration

17/32   in the series Distillation in Practice
The Orifice-Riser distributor is designed to lay the liquid carefully onto the column bed, minimizing its contact with the vapor during the...

Perforated Pipe Distributor Demonstration

18/32   in the series Distillation in Practice
The Perforated Pipe Distributor has a central feed line and pipes that branch out to provide liquid discharge in the distillation column. To learn...

Vane Collector Demonstration

19/32   in the series Distillation in Practice
The Vane Collector is used to collect the liquid in a packed distillation column for redistribution or for side stream draw off. To find out why it...

Vapor/Liquid Flow in a Baffle Column Demonstration

20/32   in the series Distillation in Practice
In a Baffle Column, liquid flows from one baffle to another. Vapor flows upward through the baffle openings and comes into contact with the liquid...

Baffles in the Sump of a Column Demonstration

22/32   in the series Distillation in Practice
Placing a vertical baffle on the bottom of the column provides separate outlets for the reboiler and the bottom product stream. A constant flow is...

Blowing the Lines of a Distillation Column Demonstration

23/32   in the series Distillation in Practice
Using the pressure in a column, you can blow all the lines clean of debris and foreign materials. Care must be taken to ensure the vapor flows in the...

Distilled Water Demonstration

24/32   in the series Distillation in Practice
Distilled water is water that has been boiled and the water vapor collected and condensed back into a liquid. Contaminants in the water are minimal...

Downcomer Clearance in a Distillation Column

25/32   in the series Distillation in Practice
Clearance under the downcomer in the distillation column is determined by sealing, backup, and fouling. Visit AIChE’s Distillation Technology...

Equilibrium Curve Demonstration

26/32   in the series Distillation in Practice
Using the Equilibrium Curve, we can measure the composition of the vapor mixture in equilibrium with the liquid mixture for any number of different...

Flooding and Entrainment in a Distillation Tray

27/32   in the series Distillation in Practice
Flooding occurs when the froth level reaches the tray above. Liquid is being recycled and carried to the tray above by the froth. Flooding and...

Gamma Scans of a Column Demonstration

28/32   in the series Distillation in Practice
Gamma scans of columns can detect density differences between vapor and liquid, and can be helpful in determining equipment damage. To find out more...

Nye Tray in a Distillation Column

29/32   in the series Distillation in Practice
The Nye Tray increases vapor handling capacity by allowing vapor to rise from under the downcomer. To find out how the Nye Tray differs from...

Pressurizing and Depressurizing a Column Demonstration

30/32   in the series Distillation in Practice
During the shutdown process, columns are brought back to atmospheric conditions. The most important thing to consider when doing so is vapor rate, as...

Steam-Water Testing Demonstration

31/32   in the series Distillation in Practice
Using Steam to test a column requires a few safeguards, as you don’t want to create a vacuum using the steam. Learn how to test a column with...