Gas Flowrate Formula:
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Definition: This calculator determines the solute-free gas flow rate needed in an absorption column based on liquid flow rate and mole fractions.
Purpose: It helps chemical engineers design and analyze absorption columns for gas purification processes.
The calculator uses the formula:
Where:
Explanation: The formula balances the solute transfer between gas and liquid phases in an absorption column.
Details: Proper flowrate calculation ensures efficient mass transfer, optimal column sizing, and meets purification requirements.
Tips: Enter all required mole fractions (values between 0 and 1) and liquid flowrate. Default values represent typical absorption scenarios.
Q1: What is solute-free basis?
A: It means the calculations exclude the solute component, focusing only on the carrier gas and solvent.
Q2: When would I need this calculation?
A: When designing absorption columns for gas purification, acid gas removal, or similar processes.
Q3: What are typical values for mole fractions?
A: Inlet gas (YN+1) is typically highest (0.1-0.9), outlet gas (Y1) lowest (0.01-0.1), with liquid fractions depending on solvent.
Q4: How does liquid flowrate affect the calculation?
A: Higher liquid flowrates generally allow for higher gas flowrates while maintaining the same purification efficiency.
Q5: What if my outlet liquid mole fraction is zero?
A: XN should never be zero in practical applications as some solute will always be present in the liquid.