MODELING AND SIMULATION OF PROPANE PYROLYSIS FURNACE WITH MOLECULAR KINETIC AND COKE FORMATION

The pyrolysis process for producing valuable materials such as olefins and diolefins has a widespread application nowadays. However, the undesired reaction is the coke formation that takes place in this process, causing many difficulties during the process operation, such as increased pressure drop, slin temperature rise and, ultimately, shut down of the reactor for decocking. Therefore, computerized modeling, simulation and control of these reactors is very important from an economical point of view. In this work, the pyrolysis of propane in a tubular reactor with variable diameter and coke deposition is simulated under unsteady state conditions. Temperature, pressure, conversion profiles and product distribution are obtained in the length of reactor and with respect to time.