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The Residue flowrate from Distillation Column is the amount of moles of bottom liquid product (Residue) flowing out from the column per unit time. Check FAQs
W=DxD-xFxF-xW
W - Residue Flowrate from Distillation Column?D - Distillate Flowrate?xD - Mole Fraction of More Volatile Comp in Distillate?xF - Mole Fraction of More Volatile Component in Feed?xW - Mole Fraction of More Volatile Comp in Residue?

Total Residue Flowrate of Distillation Column from Overall and Component Material Balance Example

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Here is how the Total Residue Flowrate of Distillation Column from Overall and Component Material Balance equation looks like with Values.

Here is how the Total Residue Flowrate of Distillation Column from Overall and Component Material Balance equation looks like with Units.

Here is how the Total Residue Flowrate of Distillation Column from Overall and Component Material Balance equation looks like.

5.7991Edit=4.2Edit0.9Edit-0.5Edit0.5Edit-0.2103Edit
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Total Residue Flowrate of Distillation Column from Overall and Component Material Balance Solution

Follow our step by step solution on how to calculate Total Residue Flowrate of Distillation Column from Overall and Component Material Balance?

FIRST Step Consider the formula
W=DxD-xFxF-xW
Next Step Substitute values of Variables
W=4.2mol/s0.9-0.50.5-0.2103
Next Step Prepare to Evaluate
W=4.20.9-0.50.5-0.2103
Next Step Evaluate
W=5.79910251984812mol/s
LAST Step Rounding Answer
W=5.7991mol/s

Total Residue Flowrate of Distillation Column from Overall and Component Material Balance Formula Elements

Variables
Residue Flowrate from Distillation Column
The Residue flowrate from Distillation Column is the amount of moles of bottom liquid product (Residue) flowing out from the column per unit time.
Symbol: W
Measurement: Molar Flow RateUnit: mol/s
Note: Value should be greater than 0.
Distillate Flowrate
The Distillate flowrate from Distillation Column is the amount of moles of condensed top product (distillate) flowing out from the column per unit time.
Symbol: D
Measurement: Molar Flow RateUnit: mol/s
Note: Value should be greater than 0.
Mole Fraction of More Volatile Comp in Distillate
The Mole Fraction of More Volatile comp in Distillate of Distillation Column is the mole fraction of More Volatile Component in the distillate stream of distillation column.
Symbol: xD
Measurement: NAUnit: Unitless
Note: Value should be between 0 to 1.
Mole Fraction of More Volatile Component in Feed
The Mole Fraction of More Volatile component in Feed of Distillation Column is the mole fraction of More Volatile Component in the feed stream of distillation column.
Symbol: xF
Measurement: NAUnit: Unitless
Note: Value should be between 0 to 1.
Mole Fraction of More Volatile Comp in Residue
The Mole Fraction of More Volatile comp in Residue of Distillation Column is the mole fraction of More Volatile Component in the residue stream of distillation column.
Symbol: xW
Measurement: NAUnit: Unitless
Note: Value should be between 0 to 1.

Other Formulas to find Residue Flowrate from Distillation Column

​Go Total Residue Flowrate of Distillation Column from Overall Material Balance
W=F-D
​Go Total Residue Flowrate of Distillation Column from Overall Component Material Balance
W=FxF-DxDxW

Other formulas in Material Balance category

​Go Total Feed Flowrate of Distillation Column from Overall Material Balance
F=D+W
​Go Total Distillate Flowrate of Distillation Column from Overall Material Balance
D=F-W
​Go Mole Fraction of MVC in Feed from Overall Component Material Balance in Distillation
xF=DxD+WxWF
​Go Mole Fraction of MVC in Distillate from Overall Component Material Balance in Distillation
xD=FxF-WxWD

How to Evaluate Total Residue Flowrate of Distillation Column from Overall and Component Material Balance?

Total Residue Flowrate of Distillation Column from Overall and Component Material Balance evaluator uses Residue Flowrate from Distillation Column = Distillate Flowrate*(Mole Fraction of More Volatile Comp in Distillate-Mole Fraction of More Volatile Component in Feed)/(Mole Fraction of More Volatile Component in Feed-Mole Fraction of More Volatile Comp in Residue) to evaluate the Residue Flowrate from Distillation Column, The Total Residue Flowrate of Distillation Column from Overall and Component Material Balance formula is defined as Residue Flowrate coming out from the distillation column calculated as per Overall and Component Material Balance Equations. Residue Flowrate from Distillation Column is denoted by W symbol.

How to evaluate Total Residue Flowrate of Distillation Column from Overall and Component Material Balance using this online evaluator? To use this online evaluator for Total Residue Flowrate of Distillation Column from Overall and Component Material Balance, enter Distillate Flowrate (D), Mole Fraction of More Volatile Comp in Distillate (xD), Mole Fraction of More Volatile Component in Feed (xF) & Mole Fraction of More Volatile Comp in Residue (xW) and hit the calculate button.

FAQs on Total Residue Flowrate of Distillation Column from Overall and Component Material Balance

What is the formula to find Total Residue Flowrate of Distillation Column from Overall and Component Material Balance?
The formula of Total Residue Flowrate of Distillation Column from Overall and Component Material Balance is expressed as Residue Flowrate from Distillation Column = Distillate Flowrate*(Mole Fraction of More Volatile Comp in Distillate-Mole Fraction of More Volatile Component in Feed)/(Mole Fraction of More Volatile Component in Feed-Mole Fraction of More Volatile Comp in Residue). Here is an example- 4.2 = 4.2*(0.9-0.5)/(0.5-0.2103).
How to calculate Total Residue Flowrate of Distillation Column from Overall and Component Material Balance?
With Distillate Flowrate (D), Mole Fraction of More Volatile Comp in Distillate (xD), Mole Fraction of More Volatile Component in Feed (xF) & Mole Fraction of More Volatile Comp in Residue (xW) we can find Total Residue Flowrate of Distillation Column from Overall and Component Material Balance using the formula - Residue Flowrate from Distillation Column = Distillate Flowrate*(Mole Fraction of More Volatile Comp in Distillate-Mole Fraction of More Volatile Component in Feed)/(Mole Fraction of More Volatile Component in Feed-Mole Fraction of More Volatile Comp in Residue).
What are the other ways to Calculate Residue Flowrate from Distillation Column?
Here are the different ways to Calculate Residue Flowrate from Distillation Column-
  • Residue Flowrate from Distillation Column=Feed Flowrate to Distillation Column-Distillate FlowrateOpenImg
  • Residue Flowrate from Distillation Column=(Feed Flowrate to Distillation Column*Mole Fraction of More Volatile Component in Feed-Distillate Flowrate*Mole Fraction of More Volatile Comp in Distillate)/Mole Fraction of More Volatile Comp in ResidueOpenImg
Can the Total Residue Flowrate of Distillation Column from Overall and Component Material Balance be negative?
No, the Total Residue Flowrate of Distillation Column from Overall and Component Material Balance, measured in Molar Flow Rate cannot be negative.
Which unit is used to measure Total Residue Flowrate of Distillation Column from Overall and Component Material Balance?
Total Residue Flowrate of Distillation Column from Overall and Component Material Balance is usually measured using the Mole per Second[mol/s] for Molar Flow Rate. Kilomole per Second[mol/s], Dekamole per Second[mol/s], Mole per Minute[mol/s] are the few other units in which Total Residue Flowrate of Distillation Column from Overall and Component Material Balance can be measured.
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