This paper deals mainly with the regeneration of coked B-02 catalyst which has been run in the two stage industrial adiabatic beds for nearly 4000 hours. Experiments were carried out in an internal recycle gradientless reactor. The intrinsic kinetic model for burning regeneration of the coked catalyst was obtained by using non-linear least-square method. The kinetic model can be expressed simply in terms of the oxidation of carbon and hydrogen because the coke

in fact

is polynuclear aromatics composed of carbon and hydrogen. The kinetic equations for carbon oxidation For the first adiabatic bed catalyst For the second adiabatic bed catalyst The kinetic equations for hydrogen oxidation For the first adiabatic bed catalyst For the second adiabatic bed catalyst