Inflection Point Engineering Scripts & Utilities

Reactor Conversion Estimator

Isothermal conversion for CSTR and PFR reactors with 1st or 2nd order irreversible kinetics. Supply either residence time τ directly, or volume V_L (L) plus volumetric flow F_L_min (L/min); the tool computes the missing one. Good for screening-level sensitivity before rigorous kinetic modeling.

References: H. S. Fogler, Elements of Chemical Reaction Engineering, 5th ed., Ch. 2 & 4; O. Levenspiel, Chemical Reaction Engineering, 3rd ed., Ch. 5. Closed-form solutions used: CSTR-1: X = kτ/(1+kτ) · CSTR-2: kτC² + C − C₀ = 0 · PFR-1: X = 1 − e−kτ · PFR-2: X = kC₀τ/(1+kC₀τ).