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Definition: This calculator determines the initial concentration of reactant needed in a mixed flow reactor (MFR) for a two-step first-order irreversible reaction series.
Purpose: It helps chemical engineers design reactors and predict reactant requirements for complex reaction systems.
The calculator uses the formula:
Where:
Explanation: The formula accounts for both reaction steps and the reactor's space time to determine the required initial reactant concentration.
Details: Accurate initial concentration calculations are crucial for reactor design, process optimization, and ensuring desired product yields in multi-step reactions.
Tips: Enter the intermediate concentration, both rate constants, and space time. All values must be positive numbers.
Q1: What is space time in a mixed flow reactor?
A: Space time (τ) is the time required to process one reactor volume of feed under specified conditions.
Q2: How do I determine the rate constants k1 and k2?
A: Rate constants are typically determined experimentally or from literature for specific reactions and conditions.
Q3: Can this be used for other reactor types?
A: No, this specific formula applies only to mixed flow reactors (continuous stirred-tank reactors).
Q4: What if my reaction has more than two steps?
A: This calculator is specifically for two-step reactions. More complex systems require different approaches.
Q5: Why is the intermediate concentration important?
A: The intermediate concentration affects the overall reaction kinetics and the required initial reactant concentration.