Liquid Holdup Calculator

✖The Volume of Liquid Phase in a Reactor is often referred to as the "Reactor Volume occupied by the Liquid Phase" or simply the "Liquid Volume in Reactor".ⓘ Volume of Liquid Phase [V_l]			+10% -10%
✖Volume of Reactor is a measure of the space within the reactor vessel available for the chemical reaction to take place.ⓘ Volume of Reactor [V]			+10% -10%

✖Liquid Holdup is the total volume of the Liquid at the Pack Surfaces as well as that in the pack pores, the holdup regions and the column bottom.ⓘ Liquid Holdup [f_l]

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Formula

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Liquid Holdup

Formula

`"f"_{"l"} = "V"_{"l"}/"V"`

Example

`"0.12012"="120m³"/"999m³"`

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Liquid Holdup Solution

STEP 0: Pre-Calculation Summary

Formula Used

Liquid Holdup = Volume of Liquid Phase/Volume of Reactor
f_l = V_l/V
This formula uses 3 Variables

Variables Used

Liquid Holdup - Liquid Holdup is the total volume of the Liquid at the Pack Surfaces as well as that in the pack pores, the holdup regions and the column bottom.
Volume of Liquid Phase - (Measured in Cubic Meter) - The Volume of Liquid Phase in a Reactor is often referred to as the "Reactor Volume occupied by the Liquid Phase" or simply the "Liquid Volume in Reactor".
Volume of Reactor - (Measured in Cubic Meter) - Volume of Reactor is a measure of the space within the reactor vessel available for the chemical reaction to take place.

STEP 1: Convert Input(s) to Base Unit

Volume of Liquid Phase: 120 Cubic Meter --> 120 Cubic Meter No Conversion Required
Volume of Reactor: 999 Cubic Meter --> 999 Cubic Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

f_l = V_l/V --> 120/999

Evaluating ... ...

f_l = 0.12012012012012

STEP 3: Convert Result to Output's Unit

0.12012012012012 --> No Conversion Required

FINAL ANSWER

0.12012012012012 ≈ 0.12012 <-- Liquid Holdup

(Calculation completed in 00.004 seconds)

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Created by Pavan Kumar

Anurag Group of Institutions (AGI), Hyderabad

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DJ Sanghvi College of Engineering (DJSCE), Mumbai

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< 13 G/L Reactions on Solid Catalysts Calculators

Rate Equation of Reactant A at Extreme B

Go Reaction Rate of Reactant A = (-(1/((1/(Gas Phase Mass Transfer Coefficient*Inner Area of Particle))+(Henry Law Constant/(Liquid Phase Mass Transfer Coefficient*Inner Area of Particle))+(Henry Law Constant/(Film Coefficient of Catalyst on A*External Area of Particle))+(Henry Law Constant/((Rate Constant of A*Diffused Concentration of Total Reactant B)*Effectiveness Factor of Reactant A*Solid Loading into Reactors)))*Pressure of Gaseous A))

Partial Pressure of Gaseous A at Extreme B

Go Pressure of Gaseous A = Reaction Rate of Reactant A*((1/(Gas Phase Mass Transfer Coefficient*Inner Area of Particle))+(Henry Law Constant/(Liquid Phase Mass Transfer Coefficient*Inner Area of Particle))+(Henry Law Constant/(Film Coefficient of Catalyst on A*External Area of Particle))+(Henry Law Constant/((Rate Constant of A*Diffused Concentration of Total Reactant B)*Effectiveness Factor of Reactant A*Solid Loading into Reactors)))

Rate Equation of Reactant A in G/L Reactions

Go Reaction Rate of Reactant A = (1/((1/(Gas Phase Mass Transfer Coefficient*Inner Area of Particle))+(Henry Law Constant/(Liquid Phase Mass Transfer Coefficient*Inner Area of Particle))+(Henry Law Constant/(Film Coefficient of Catalyst on A*External Area of Particle))+(Henry Law Constant/((Rate Constant of A*Diffused Concentration of Reactant B)*Effectiveness Factor of Reactant A*Solid Loading into Reactors)))*Pressure of Gaseous A)

Partial Pressure of Gaseous A in G/L Reactions

Go Pressure of Gaseous A = Reaction Rate of Reactant A*((1/(Gas Phase Mass Transfer Coefficient*Inner Area of Particle))+(Henry Law Constant/(Liquid Phase Mass Transfer Coefficient*Inner Area of Particle))+(Henry Law Constant/(Film Coefficient of Catalyst on A*External Area of Particle))+(Henry Law Constant/((Rate Constant of A*Diffused Concentration of Reactant B)*Effectiveness Factor of Reactant A*Solid Loading into Reactors)))

Rate Equation of Reactant B at Extreme A

Go Reaction Rate of Reactant B = (1/((1/(Film Coefficient of Catalyst on B*External Area of Particle))+(1/(((Rate Constant of B*Pressure of Gaseous A)/Henry Law Constant)*Effectiveness Factor of Reactant B*Solid Loading into Reactors))))*Concentration of Liquid B

Concentration of Reactant B at Extreme A

Go Concentration of Liquid B = Reaction Rate of Reactant B*((1/(Film Coefficient of Catalyst on B*External Area of Particle))+(1/(((Rate Constant of B*Pressure of Gaseous A)/Henry Law Constant)*Effectiveness Factor of Reactant B*Solid Loading into Reactors)))

Rate Equation of Reactant B in G/L Reactions

Go Reaction Rate of Reactant B = (1/((1/(Film Coefficient of Catalyst on B*External Area of Particle))+(1/((Rate Constant of B*Diffused Concentration of Reactant A)*Effectiveness Factor of Reactant B*Solid Loading into Reactors))))*Concentration of Liquid B

Concentration of Reactant B in G/L Reactions

Go Concentration of Liquid B = Reaction Rate of Reactant B*((1/(Film Coefficient of Catalyst on B*External Area of Particle))+(1/((Rate Constant of B*Diffused Concentration of Reactant A)*Effectiveness Factor of Reactant B*Solid Loading into Reactors)))

External Area of Particle

Go External Area of Particle = 6*Solid Loading into Reactors/Diameter of Particle

Henry's Law Constant

Go Henry Law Constant = Partial Pressure of Reactant A/Reactant Concentration

Inner Area of Particle

Go Inner Area of Particle = Gas Liquid Interfacial Area/Volume of Reactor

Solid Loading

Go Solid Loading into Reactors = Volume of Particles/Volume of Reactor

Liquid Holdup

Go Liquid Holdup = Volume of Liquid Phase/Volume of Reactor

Liquid Holdup Formula

Liquid Holdup = Volume of Liquid Phase/Volume of Reactor
f_l = V_l/V

What are G/L Reactions on Solid Catalysts?

In some chemical processes, reactions involve both gas and liquid phases, and solid catalysts can play a crucial role in facilitating these reactions. One common example is the use of solid catalysts in gas-liquid phase reactions in heterogeneous catalysis.

How to Calculate Liquid Holdup?

Liquid Holdup calculator uses Liquid Holdup = Volume of Liquid Phase/Volume of Reactor to calculate the Liquid Holdup, The Liquid Holdup formula is defined as the Ratio between the Volume of Liquid flowing through Reactor and Volume of Reactor. Liquid Holdup is denoted by f_l symbol.

How to calculate Liquid Holdup using this online calculator? To use this online calculator for Liquid Holdup, enter Volume of Liquid Phase (V_l) & Volume of Reactor (V) and hit the calculate button. Here is how the Liquid Holdup calculation can be explained with given input values -> 0.12012 = 120/999.

FAQ

What is Liquid Holdup?

The Liquid Holdup formula is defined as the Ratio between the Volume of Liquid flowing through Reactor and Volume of Reactor and is represented as f_l = V_l/V or Liquid Holdup = Volume of Liquid Phase/Volume of Reactor. The Volume of Liquid Phase in a Reactor is often referred to as the "Reactor Volume occupied by the Liquid Phase" or simply the "Liquid Volume in Reactor" & Volume of Reactor is a measure of the space within the reactor vessel available for the chemical reaction to take place.

How to calculate Liquid Holdup?

The Liquid Holdup formula is defined as the Ratio between the Volume of Liquid flowing through Reactor and Volume of Reactor is calculated using Liquid Holdup = Volume of Liquid Phase/Volume of Reactor. To calculate Liquid Holdup, you need Volume of Liquid Phase (V_l) & Volume of Reactor (V). With our tool, you need to enter the respective value for Volume of Liquid Phase & Volume of Reactor and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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