PROCESSES FOR REDISTRIBUTING HEAT FLUX ON PROCESS TUBES WITHIN PROCESS HEATERS, AND PROCESS HEATERS INCLUDING THE SAME

摘要

According to the invention, the process tube of the heating process the heater (fired process heater) (12) (14) more equal heat flux distribution is in its outer peripheral surface area (exterior circumferential surface region) is provided on. More specifically, according to the invention, on at least one circumferential segment of the exterior circumferential surface region of the process tube 14, and the selected heat emissivity (thermal emissivity) and / or a coating of a material having a thermal conductivity (22) is provided and , the material, and the thermal emissivity of the outer peripheral surface of another circumferential segment of the process tube (14) / or thermal conductivity are different. In this way, as compared to the coating without the heat flow distribution device, it is possible to establish a more uniform heat distribution across the outer surface region of the process tube 14.