Distillate Flowrate based on External Reflux Ratio Calculator

✖The External Reflux Flowrate to Distillation Column is the number of moles of condensed top product flowing back into the column as reflux per unit time.ⓘ External Reflux Flowrate to Distillation Column [L₀]			+10% -10%
✖The External Reflux Ratio is the ratio of the liquid flowrate from the reflux drum back to the distillation column to the flowrate of distillate taken as product.ⓘ External Reflux Ratio [R]			+10% -10%

✖The Distillate flowrate from Distillation Column is the amount of moles of condensed top product (distillate) flowing out from the column per unit time.ⓘ Distillate Flowrate based on External Reflux Ratio [D]

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Distillate Flowrate based on External Reflux Ratio Solution

STEP 0: Pre-Calculation Summary

Formula Used

Distillate Flowrate from Distillation Column = External Reflux Flowrate to Distillation Column/External Reflux Ratio
D = L₀/R
This formula uses 3 Variables

Variables Used

Distillate Flowrate from Distillation Column - (Measured in Mole per Second) - The Distillate flowrate from Distillation Column is the amount of moles of condensed top product (distillate) flowing out from the column per unit time.
External Reflux Flowrate to Distillation Column - (Measured in Mole per Second) - The External Reflux Flowrate to Distillation Column is the number of moles of condensed top product flowing back into the column as reflux per unit time.
External Reflux Ratio - The External Reflux Ratio is the ratio of the liquid flowrate from the reflux drum back to the distillation column to the flowrate of distillate taken as product.

STEP 1: Convert Input(s) to Base Unit

External Reflux Flowrate to Distillation Column: 6.5 Mole per Second --> 6.5 Mole per Second No Conversion Required
External Reflux Ratio: 1.55 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

D = L₀/R --> 6.5/1.55

Evaluating ... ...

D = 4.19354838709677

STEP 3: Convert Result to Output's Unit

4.19354838709677 Mole per Second --> No Conversion Required

FINAL ANSWER

4.19354838709677 ≈ 4.193548 Mole per Second <-- Distillate Flowrate from Distillation Column

(Calculation completed in 00.004 seconds)

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< Continuous Distillation Calculators

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LaTeX Go Murphree Efficiency of Distillation Column = ((Average Mole Fraction of Vapour on Nth Plate-Average Mole Fraction of Vapour at N+1 Plate)/(Average Mole Fraction at Equilibrium on Nth Plate-Average Mole Fraction of Vapour at N+1 Plate))*100

Liquid Reflux Flowrate based on External Reflux Ratio

LaTeX Go External Reflux Flowrate to Distillation Column = External Reflux Ratio*Distillate Flowrate from Distillation Column

External Reflux Ratio

LaTeX Go External Reflux Ratio = External Reflux Flowrate to Distillation Column/Distillate Flowrate from Distillation Column

Overall Efficiency of Distillation Column

LaTeX Go Overall Efficiency of Distillation Column = (Ideal Number of Plates/Actual Number of Plates)*100

Distillate Flowrate based on External Reflux Ratio Formula

LaTeX Go

Distillate Flowrate from Distillation Column = External Reflux Flowrate to Distillation Column/External Reflux Ratio
D = L₀/R

What is the importance of Reflux Ratio in Distillation Column?

If reflux ratio is reduced (or if distillate rate D is increased compared to L) the more stages are required. Further reduction in Reflux Ratio leads to a point where infinite stages are required. This condition is known as minimum reflux. Any Increase in Reflux ratio above this point gives a workable system, upto the point where the reflux ratio reaches infinity and minimum number of stages are required, this condition is known as Total Reflux.

What is the effect of Reflux Ratio on Distillation Operation?

Distillation process is done to achieve a specific level of enrichment. To achieve this enrichment level, one must specify a reflux ratio. Decreasing that reflux ratio (i.e, increasing D), has an advantage that the duty of condenser and reboiler decreases, since the load in distillation column decreases (more mass goes out as D increases) . In other sense, the operating cost of distillation column decreases. However, it would be at expense of less enrichment achieved than required. Increasing reflux ratio would act in reverse i.e, it would have a disadvantage of increase in duty of condenser and reboiler as load increases. This increases the operation cost of distillation column; however, more enrichment is achieved.

How to Calculate Distillate Flowrate based on External Reflux Ratio?

Distillate Flowrate based on External Reflux Ratio calculator uses Distillate Flowrate from Distillation Column = External Reflux Flowrate to Distillation Column/External Reflux Ratio to calculate the Distillate Flowrate from Distillation Column, The Distillate Flowrate based on External Reflux Ratio formula is defined as ratio of the External Reflux Liquid Flowrate back to Distillation Column to the External Reflux Ratio. Distillate Flowrate from Distillation Column is denoted by D symbol.

How to calculate Distillate Flowrate based on External Reflux Ratio using this online calculator? To use this online calculator for Distillate Flowrate based on External Reflux Ratio, enter External Reflux Flowrate to Distillation Column (L₀) & External Reflux Ratio (R) and hit the calculate button. Here is how the Distillate Flowrate based on External Reflux Ratio calculation can be explained with given input values -> 4.193548 = 6.5/1.55.

FAQ

What is Distillate Flowrate based on External Reflux Ratio?

The Distillate Flowrate based on External Reflux Ratio formula is defined as ratio of the External Reflux Liquid Flowrate back to Distillation Column to the External Reflux Ratio and is represented as D = L₀/R or Distillate Flowrate from Distillation Column = External Reflux Flowrate to Distillation Column/External Reflux Ratio. The External Reflux Flowrate to Distillation Column is the number of moles of condensed top product flowing back into the column as reflux per unit time & The External Reflux Ratio is the ratio of the liquid flowrate from the reflux drum back to the distillation column to the flowrate of distillate taken as product.

How to calculate Distillate Flowrate based on External Reflux Ratio?

The Distillate Flowrate based on External Reflux Ratio formula is defined as ratio of the External Reflux Liquid Flowrate back to Distillation Column to the External Reflux Ratio is calculated using Distillate Flowrate from Distillation Column = External Reflux Flowrate to Distillation Column/External Reflux Ratio. To calculate Distillate Flowrate based on External Reflux Ratio, you need External Reflux Flowrate to Distillation Column (L₀) & External Reflux Ratio (R). With our tool, you need to enter the respective value for External Reflux Flowrate to Distillation Column & External Reflux Ratio and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Distillate Flowrate from Distillation Column?

In this formula, Distillate Flowrate from Distillation Column uses External Reflux Flowrate to Distillation Column & External Reflux Ratio. We can use 1 other way(s) to calculate the same, which is/are as follows -

Distillate Flowrate from Distillation Column = Internal Reflux Flowrate to Distillation Column/Internal Reflux Ratio

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