Fired heaters for Fixed Bed Platforming Unit
Transheat scope
Thermal design, Mechanical design, structure design, refractory design, piping stress analysis, specifications for bought out items, complete 3D modelling of heaters with interconnecting flue gas ducts, fabrication drawings and material lists from the same 3D model.
Common convection section with steam generation, steam superheating and feed water preheating coiles. Complete heat and mass balance across steam drum and convection coiles along with design details of closed loop recirculation pump for convection section.
Installation location : Iraq.
Thermal design by Transheat.
All design documents reviewed by : UOP – Process Licensor.
Major design attributes
Total number of heaters in package = 3.
All heaters natural draft, vertical cylindrical.
Fuel fired - Gas
Common convection section and stack.
Lower and Upper Steam generation coils in co-current flow.
Steam superheating and feed water preheat coils in counter-current flow.
Design details for recirculation pump between steam drum and convection coils
Convection section - steam generation, steam superheat & feed water preheat coils.
Piping stress analysis of complete coils with cross-over piping.
Heat and mass balance across steam drum and convection coils.
Flue gas ducts provided with expansion joints, dampers and shut-off blades
Process fluid in radiant section only for all heaters.
Software tools used for thermal design : HTRI XfhUltra
