Recycle Ratio Solution

STEP 0: Pre-Calculation Summary
Formula Used
Recycle Ratio = Volume Returned/Volume Discharged
R = VR/VD
This formula uses 3 Variables
Variables Used
Recycle Ratio - Recycle Ratio is defined as volume of feed, returned to the reactor entrance divided by the volume of the leaving streams.
Volume Returned - (Measured in Cubic Meter) - Volume Returned is the volume of the fluid returned to reactor entrance.
Volume Discharged - (Measured in Cubic Meter) - Volume Discharged is the volume leaving the system.
STEP 1: Convert Input(s) to Base Unit
Volume Returned: 40 Cubic Meter --> 40 Cubic Meter No Conversion Required
Volume Discharged: 133.33 Cubic Meter --> 133.33 Cubic Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
R = VR/VD --> 40/133.33
Evaluating ... ...
R = 0.300007500187505
STEP 3: Convert Result to Output's Unit
0.300007500187505 --> No Conversion Required
FINAL ANSWER
0.300007500187505 0.300008 <-- Recycle Ratio
(Calculation completed in 00.020 seconds)

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Recycle Reactor Calculators

Rate Constant for First Order Reaction using Recycle Ratio
​ Go Rate Constant for First Order Reaction = ((Recycle Ratio+1)/Space Time)*ln((Initial Reactant Concentration+(Recycle Ratio*Final Reactant Concentration))/((Recycle Ratio+1)*Final Reactant Concentration))
Recycle Ratio using Reactant Conversion
​ Go Recycle Ratio = 1/((Final Reactant Conversion/Total Feed Reactant Conversion)-1)
Recycle Ratio using Total Feed Rate
​ Go Recycle Ratio = (Total Molar Feed Rate/Fresh Molar Feed Rate)-1
Recycle Ratio
​ Go Recycle Ratio = Volume Returned/Volume Discharged

Important Formulas in Design of Reactors and Recycle Reactors for Single Reactions Calculators

Initial Reactant Concentration for First Order Reaction using Reaction Rate
​ Go Initial Reactant Concentration = (Adjusted Retention Time of Comp 2*Reaction Rate for Vessel i)/(Reactant Conversion of Vessel i-1-Reactant Conversion of Vessel i)
Initial Reactant Concentration for First Order Reaction in Vessel i
​ Go Reactant Concentration in Vessel i-1 = Reactant Concentration in Vessel i*(1+(Rate Constant for First Order Reaction*Adjusted Retention Time of Comp 2))
Reactant Concentration for First Order Reaction in Vessel i
​ Go Reactant Concentration in Vessel i = Reactant Concentration in Vessel i-1/(1+(Rate Constant for First Order Reaction*Adjusted Retention Time of Comp 2))
Initial Reactant Concentration for Second Order Reaction for Plug Flow or Infinite Reactors
​ Go Initial Reactant Concentration = 1/((1/Reactant Concentration)-(Rate Constant for Second Order Reaction*Space Time for Plug Flow Reactor))

Recycle Ratio Formula

Recycle Ratio = Volume Returned/Volume Discharged
R = VR/VD

What is recycle in chemical engineering?

The essentials of the recycling method are that the mixture of both reacted and unreacted products reaches a separating system beyond the reactor where these products are separated from each other; then the unreacted part mixes with the fresh feed stock and the resulting mixture is passed into the reactor.

Why is chemical recycling important?

Chemical recycling could reduce the amount of plastic that ends up in landfills, thereby potentially reducing the release of harmful chemicals into the environment. Chemical recycling can also produce high-quality raw materials, thereby decreasing demand for fossil fuels and other natural resources.

How to Calculate Recycle Ratio?

Recycle Ratio calculator uses Recycle Ratio = Volume Returned/Volume Discharged to calculate the Recycle Ratio, The Recycle Ratio formula is defined as the volume of feed returned to the reactor entrance divided by the volume of the leaving streams. Recycle Ratio is denoted by R symbol.

How to calculate Recycle Ratio using this online calculator? To use this online calculator for Recycle Ratio, enter Volume Returned (VR) & Volume Discharged (VD) and hit the calculate button. Here is how the Recycle Ratio calculation can be explained with given input values -> 0.300008 = 40/133.33.

FAQ

What is Recycle Ratio?
The Recycle Ratio formula is defined as the volume of feed returned to the reactor entrance divided by the volume of the leaving streams and is represented as R = VR/VD or Recycle Ratio = Volume Returned/Volume Discharged. Volume Returned is the volume of the fluid returned to reactor entrance & Volume Discharged is the volume leaving the system.
How to calculate Recycle Ratio?
The Recycle Ratio formula is defined as the volume of feed returned to the reactor entrance divided by the volume of the leaving streams is calculated using Recycle Ratio = Volume Returned/Volume Discharged. To calculate Recycle Ratio, you need Volume Returned (VR) & Volume Discharged (VD). With our tool, you need to enter the respective value for Volume Returned & Volume Discharged 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 Recycle Ratio?
In this formula, Recycle Ratio uses Volume Returned & Volume Discharged. We can use 3 other way(s) to calculate the same, which is/are as follows -
  • Recycle Ratio = (Total Molar Feed Rate/Fresh Molar Feed Rate)-1
  • Recycle Ratio = 1/((Final Reactant Conversion/Total Feed Reactant Conversion)-1)
  • Recycle Ratio = 1/((Final Reactant Conversion/Total Feed Reactant Conversion)-1)
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