Gas Flowrate Formula:
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Definition: This calculator determines the flowrate of carrier gas excluding the solute component based on inlet conditions and mole fraction.
Purpose: It helps chemical engineers and process designers calculate the actual flow of carrier gas in absorption and separation processes.
The calculator uses the formula:
Where:
Explanation: The total inlet flowrate is multiplied by (1 - mole fraction) to exclude the solute component from the flow calculation.
Details: Accurate calculation of solute-free gas flow is crucial for designing absorption columns, calculating mass transfer rates, and determining equipment sizing.
Tips: Enter the total inlet gas flowrate in mol/s and the mole fraction of solute (between 0 and 1). The default mole fraction is 0.3.
Q1: Why calculate solute-free flowrate?
A: It represents the actual carrier gas flow available for mass transfer, excluding the solute that will be absorbed.
Q2: What's a typical mole fraction range?
A: In industrial applications, mole fractions typically range from 0.05 to 0.4 depending on the process.
Q3: Can this be used for liquid streams?
A: The same principle applies to liquid streams, though the calculation would use liquid flowrate and mole fraction.
Q4: How does this relate to absorption efficiency?
A: The solute-free flowrate helps determine the gas-to-liquid ratio which affects absorption efficiency.
Q5: What if my solute mole fraction is very small?
A: For very dilute streams (yN+1 < 0.05), the difference between total and solute-free flowrate becomes negligible.