Batch reactor simulator

A batch reactor is a closed, well-mixed vessel with no inflow or outflow: reactants are charged at the start and composition changes with time alone. This page integrates the mole balance for your custom reaction and plots how each species concentration evolves over the batch time.

For a simple nth-order rate law r = k·[A]ⁿ the concentration profile follows the closed-form solution of dC/dt = −k·Cⁿ; for second order this is the familiar C = C₀ / (1 + k·C₀·t). Two-species kinetics are integrated numerically with RK4 instead.

Conversion, the rate constant k and the batch time are shown live and recompute as you change temperature, since k = A·exp(−Eₐ/RT). The 3D vessel alongside the chart shows a stirred tank whose liquid colour tracks conversion and whose impeller speed tracks the rate constant.

This simulator needs JavaScript and WebGL to run. Enable JavaScript to use the interactive charts and 3D reactor views.