Formula Used:
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Definition: The Liquid Flowrate on Solute Free Basis is defined as the Inlet Liquid Flowrate on solute free basis to the absorption column.
Purpose: It helps chemical engineers determine the actual solvent flow rate excluding the solute component for absorption column design.
The calculator uses the formula:
Where:
Explanation: The inlet liquid flowrate is divided by (1 + mole fraction) to get the flowrate of just the solvent component.
Details: Accurate calculation ensures proper design of absorption columns and efficient mass transfer operations in chemical processes.
Tips: Enter the inlet liquid flowrate in mol/s and the solute free mole fraction. Both values must be ≥ 0, with flowrate > 0.
Q1: Why calculate solute free basis flowrate?
A: It represents the actual solvent flow available for absorption, excluding solute that's already in the liquid.
Q2: What's a typical mole fraction range?
A: Typically between 0-0.1 for dilute systems, but can be higher for concentrated solutions.
Q3: How do I find the inlet mole fraction?
A: It can be determined from feed composition analysis or process specifications.
Q4: What units should be used?
A: Flowrate in mol/s (consistent units) and mole fraction is dimensionless.
Q5: Does this apply to other processes?
A: Yes, the concept is also used in distillation, extraction, and other separation processes.