FIREBOX SIMULATION OF OLEFIN UNITS

Abstract

The simulation of the firebox and the cracking coils of an olefin production unit is based on a zone model, discretizing the firebox and the external skin of the coils. The temperature distributions in the furnace and along the coil wall are generated simultaneously with the temperature, conversion and pressure profiles inside the cracking coils. Important temperature variations in the firebox are revealed. The program is used to investigate the influence of the firing pattern on the temperatures and on the product distribution