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Definition: This calculator determines the rate constant for catalytic reactions considering catalyst deactivation in mixed flow reactors.
Purpose: It helps chemical engineers and researchers analyze reaction kinetics in systems with catalyst deactivation.
The calculator uses the formula:
Where:
Explanation: The formula accounts for the initial and current reactant concentrations, catalyst deactivation rate, reaction time, and space time.
Details: Accurate rate constant determination is crucial for reactor design, process optimization, and catalyst performance evaluation.
Tips: Enter all required parameters with positive values. Default values are provided for demonstration purposes.
Q1: What does the rate constant represent?
A: It represents the reaction rate per unit mass of catalyst, accounting for deactivation effects.
Q2: How is space time different from reaction time?
A: Space time is a reactor design parameter representing the time required to process one reactor volume of feed.
Q3: What factors affect catalyst deactivation rate?
A: Temperature, poisoning, fouling, and thermal degradation can all impact deactivation rate.
Q4: Can this calculator be used for other reactor types?
A: No, this specific formula applies to mixed flow reactors with batch solids.
Q5: What units should I use for inputs?
A: All concentrations should be in mol/m³, rates in 1/s, and times in seconds for consistent results.