Abstract: The effect of the operation parameters such as reaction temperature, pressure, space velocity, hydrogen to hydrocarbon mass ratio, catalyst distribution ratio in the reactors and catalyst circulating rate on the CCR process were investigated. The results show that a maximum octane yield (octane barrel) appears with increase of octane number of reformate. When the octane number of reformate is larger than a fixed value, the aromatics yields for C6 and C7 increase but slightly decrease for C8 and C9+ with increase of octane number of reformate. The design philosophy based on the principle of maximizing octane yield and target aromatics for gasoline-type and aromatics-type CCR units is proposed, respectively. The criteria for determining design parameters for a grass-root CCR unit is made by taking olefin content in reformate, investment of unit and energy consumption into consideration..

Key words: continuous reforming, process, catalyst, aromatics, design, parameter