Internal Liquid Reflux Flowrate based on Internal Reflux Ratio Calculator

✖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 from Distillation Column [D]			+10% -10%

✖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 Liquid Reflux Flowrate based on Internal Reflux Ratio [L]

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download Distillation Formula PDF PDF Image

Internal Liquid Reflux Flowrate based on Internal Reflux Ratio Solution

STEP 0: Pre-Calculation Summary

Formula Used

Internal Reflux Flowrate to Distillation Column = Internal Reflux Ratio*Distillate Flowrate from Distillation Column
L = R_Internal*D
This formula uses 3 Variables

Variables Used

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.
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.

STEP 1: Convert Input(s) to Base Unit

Internal Reflux Ratio: 2.5 --> No Conversion Required
Distillate Flowrate from Distillation Column: 4.2 Mole per Second --> 4.2 Mole per Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

L = R_Internal*D --> 2.5*4.2

Evaluating ... ...

L = 10.5

STEP 3: Convert Result to Output's Unit

10.5 Mole per Second --> No Conversion Required

FINAL ANSWER

10.5 Mole per Second <-- Internal Reflux Flowrate to Distillation Column

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Chemical Engineering » Mass Transfer Operations » Distillation » Continuous Distillation » Internal Liquid Reflux Flowrate based on Internal Reflux Ratio

Credits

Created by Vaibhav Mishra

DJ Sanghvi College of Engineering (DJSCE), Mumbai

Vaibhav Mishra has created this Calculator and 300+ more calculators!

Verified by Prerana Bakli

University of Hawaiʻi at Mānoa (UH Manoa), Hawaii, USA

Prerana Bakli has verified this Calculator and 1600+ more calculators!

< Continuous Distillation Calculators

Murphree Efficiency of Distillation Column Based on Vapour Phase

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

Internal Liquid Reflux Flowrate based on Internal Reflux Ratio Formula

LaTeX Go

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

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 Internal Liquid Reflux Flowrate based on Internal Reflux Ratio?

Internal Liquid Reflux Flowrate based on Internal Reflux Ratio calculator uses Internal Reflux Flowrate to Distillation Column = Internal Reflux Ratio*Distillate Flowrate from Distillation Column to calculate the Internal Reflux Flowrate to Distillation Column, The Internal Liquid Reflux Flowrate based on Internal Reflux Ratio formula is defined as the product of the Internal reflux ratio and the distillate product flowrate from the column. Internal Reflux Flowrate to Distillation Column is denoted by L symbol.

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

FAQ

What is Internal Liquid Reflux Flowrate based on Internal Reflux Ratio?

The Internal Liquid Reflux Flowrate based on Internal Reflux Ratio formula is defined as the product of the Internal reflux ratio and the distillate product flowrate from the column and is represented as L = R_Internal*D or Internal Reflux Flowrate to Distillation Column = Internal Reflux Ratio*Distillate Flowrate from Distillation Column. 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 & The Distillate flowrate from Distillation Column is the amount of moles of condensed top product (distillate) flowing out from the column per unit time.

How to calculate Internal Liquid Reflux Flowrate based on Internal Reflux Ratio?

The Internal Liquid Reflux Flowrate based on Internal Reflux Ratio formula is defined as the product of the Internal reflux ratio and the distillate product flowrate from the column is calculated using Internal Reflux Flowrate to Distillation Column = Internal Reflux Ratio*Distillate Flowrate from Distillation Column. To calculate Internal Liquid Reflux Flowrate based on Internal Reflux Ratio, you need Internal Reflux Ratio (R_Internal) & Distillate Flowrate from Distillation Column (D). With our tool, you need to enter the respective value for Internal Reflux Ratio & Distillate Flowrate from Distillation Column and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search