Lump kinetic study of waxy distillate catalytic cracking in microactivity tests

The catalytic cracking of waxy distillate was investigated using equilibrium residue fluid catalytic cracking catalyst in a microactivity setup. The effect of temperature on gasoline yield was studied and a four-lump kinetic model including six reaction rates was employed. The kinetic parameters were calculated based on the experimental data using the fourth-order Runge–Kutta method and Marquardt's algorithm least square error. Activation energies and frequency factors were calculated using the Arrhenius equation. The highest gasoline yield was observed in the temperatures between 520 and 540°C, while the undesired gas products increased in higher temperatures.