Distillate Flowrate based on Internal Reflux Ratio Calculator

✖The Internal Reflux Flowrate to Distillation Column is the number of moles of liquid flowing down through the column as reflux per unit time.ⓘ Internal Reflux Flowrate to Distillation Column [L]			+10% -10%
✖The Internal 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.ⓘ Internal Reflux Ratio [R_Internal]			+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 Internal Reflux Ratio [D]

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Formula

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Distillate Flowrate based on Internal Reflux Ratio

Formula

`"D" = "L"/"R"_{"Internal"}`

Example

`"4.2mol/s"="10.5mol/s"/"2.5"`

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Distillate Flowrate based on Internal Reflux Ratio Solution

STEP 0: Pre-Calculation Summary

Formula Used

Distillate Flowrate from Distillation Column = Internal Reflux Flowrate to Distillation Column/Internal Reflux Ratio
D = L/R_Internal
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.
Internal Reflux Flowrate to Distillation Column - (Measured in Mole per Second) - The Internal Reflux Flowrate to Distillation Column is the number of moles of liquid flowing down through the column as reflux per unit time.
Internal Reflux Ratio - The Internal 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

Internal Reflux Flowrate to Distillation Column: 10.5 Mole per Second --> 10.5 Mole per Second No Conversion Required
Internal Reflux Ratio: 2.5 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

D = L/R_Internal --> 10.5/2.5

Evaluating ... ...

D = 4.2

STEP 3: Convert Result to Output's Unit

4.2 Mole per Second --> No Conversion Required

FINAL ANSWER

4.2 Mole per Second <-- Distillate Flowrate from Distillation Column

(Calculation completed in 00.004 seconds)

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< 13 Continuous Distillation Calculators

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Go Minimum Number of Stages = ((log10((Mole Fraction of More Volatile Comp in Distillate*(1-Mole Fraction of More Volatile Comp in Residue))/(Mole Fraction of More Volatile Comp in Residue*(1-Mole Fraction of More Volatile Comp in Distillate))))/(log10(Average Relative Volatility)))-1

Murphree Efficiency of Distillation Column Based on Vapour Phase

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

Feed Q-Value in Distillation Column

Go Q-value in Mass Transfer = Heat Required to Convert Feed to Saturated Vapor/Molal Latent Heat of Vaporization of Saturated Liq

Internal Liquid Reflux Flowrate based on Internal Reflux Ratio

Go Internal Reflux Flowrate to Distillation Column = Internal Reflux Ratio*Distillate Flowrate from Distillation Column

Liquid Reflux Flowrate based on External Reflux Ratio

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

Distillate Flowrate based on External Reflux Ratio

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

Distillate Flowrate based on Internal Reflux Ratio

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

External Reflux Ratio

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

Internal Reflux Ratio

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

Bottom Product based on Boil-up Ratio

Go Residue Flowrate from Distillation Column = Boil-Up Flowrate to the Distillation Column/Boil-Up Ratio

Vapor Reflux based on Boil-Up Ratio

Go Boil-Up Flowrate to the Distillation Column = Boil-Up Ratio*Residue Flowrate from Distillation Column

Boil-Up Ratio

Go Boil-Up Ratio = Boil-Up Flowrate to the Distillation Column/Residue Flowrate from Distillation Column

Overall Efficiency of Distillation Column

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

Distillate Flowrate based on Internal Reflux Ratio Formula

Distillate Flowrate from Distillation Column = Internal Reflux Flowrate to Distillation Column/Internal Reflux Ratio
D = L/R_Internal

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 Internal Reflux Ratio?

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

How to calculate Distillate Flowrate based on Internal Reflux Ratio using this online calculator? To use this online calculator for Distillate Flowrate based on Internal Reflux Ratio, enter Internal Reflux Flowrate to Distillation Column (L) & Internal Reflux Ratio (R_Internal) and hit the calculate button. Here is how the Distillate Flowrate based on Internal Reflux Ratio calculation can be explained with given input values -> 4.2 = 10.5/2.5.

FAQ

What is Distillate Flowrate based on Internal Reflux Ratio?

The Distillate Flowrate based on Internal Reflux Ratio formula is defined as the ratio of the Internal reflux liquid flowrate to the Internal reflux ratio and is represented as D = L/R_Internal or Distillate Flowrate from Distillation Column = Internal Reflux Flowrate to Distillation Column/Internal Reflux Ratio. The Internal Reflux Flowrate to Distillation Column is the number of moles of liquid flowing down through the column as reflux per unit time & The Internal 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 Internal Reflux Ratio?

The Distillate Flowrate based on Internal Reflux Ratio formula is defined as the ratio of the Internal reflux liquid flowrate to the Internal reflux ratio is calculated using Distillate Flowrate from Distillation Column = Internal Reflux Flowrate to Distillation Column/Internal Reflux Ratio. To calculate Distillate Flowrate based on Internal Reflux Ratio, you need Internal Reflux Flowrate to Distillation Column (L) & Internal Reflux Ratio (R_Internal). With our tool, you need to enter the respective value for Internal Reflux Flowrate to Distillation Column & Internal 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 Internal Reflux Flowrate to Distillation Column & Internal Reflux Ratio. We can use 1 other way(s) to calculate the same, which is/are as follows -

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

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