What are McCabe Thiele operating diagrams used for?
McCabe-Thiele Method. This method uses the equilibrium curve diagram to determine the number of theoretical stages (trays) required to achieve a desired degree of separation.
What is the main disadvantage of the McCabe Thiele method?
One of the main disadvantages of the McCabe-Thiele Method is that it is not very useful for analyzing the distillation of mixtures containing more than 2 components. However, the method is still useful as a teaching tool and a conceptual tool.
Is McCabe Thiele accurate?
Then, part 2 of this exercise, consists in determining the ratio of rectifying to stripping stages regarding the same mixture and operational conditions, using the Fenske equation, the Kirkbridge equa- tion and the McCabe and Thiele method. In this particular example, the McCabe and Thiele method is the most accurate.
What is ponchon Savarit method?
The Ponchon{Savarit diagram (Ponchon 1921; Savarit 1922) for binary distillation allows one to account for enthalpy effects that cause a varying molar overflow when stepping off stages graphically. It is a diagram that plots vapour and liquid enthalpy curves versus composition.
Which of the following is not applicable for McCabe-Thiele method?
Explanation: The best assumption of the McCabe Method is it is based on Constant molar overflow, while heat duties are neglected in the method.
How do you draw a line in McCabe-Thiele diagram?
Target product quality (composition) of the top and bottom products.
- Step 1: Establish the Plot.
- Step 2: Add 45 Degree line.
- Step 3: Add Equilibrium Data.
- Step 4: Choose Product Compositions.
- Step 5: Add the Feed Condition Line.
- Step 6: The Rectifying Section.
- Step 7: The Stripping Section.
- Step 8: Stepping Down the Plot.
How is McCabe-Thiele reflux ratio calculated?
Minimum Reflux Ratio (Rm) Draw a line from ( xD, yD) passing through ( x1, y1) with an intercept xD / (Rm + 1) on Y axis. Reflux ratio is calculated as 1.5 times the minimum reflux ratio.
What is the difference between actual stage and equilibrium stage?
A theoretical stage is one that achieves equilibrium between the phases, while actual stage represents an actual tray in the column.