1. What is Liquid Flowrate on Solute Free Basis?

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.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( L_s \) — Liquid Flowrate on Solute Free Basis (mol/s)
• \( L_0 \) — Inlet Liquid Flowrate (mol/s)
• \( X_0 \) — Solute Free Mole Fraction of Liquid in Inlet

Explanation: The inlet liquid flowrate is divided by (1 + mole fraction) to get the flowrate of just the solvent component.

3. Importance of Solute Free Flowrate Calculation

Details: Accurate calculation ensures proper design of absorption columns and efficient mass transfer operations in chemical processes.

4. Using the Calculator

Tips: Enter the inlet liquid flowrate in mol/s and the solute free mole fraction. Both values must be ≥ 0, with flowrate > 0.

5. Frequently Asked Questions (FAQ)

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.