Abstract: The industrial catalytic reforming process is simulated by developing the seventeen lumped kinetics model as a user module on ASPEN PLUS platform.The technique of user’s module utilizes the strong databases, complete sets of modules, and flexible simulations tools of the ASPEN PLUS system and retains the characteristics of the self-developed model.Eighteen lumped components (including hydrogen) are defined for more than three hundred compounds in the flowsheet, and special property methods suitable for the petroleum system are selected for the simulation.The developed simulation software is applied to a commercial continuous catalytic reforming process successfully.The simulation results show that fair agreements between the calculated and actual operating data are obtained.