heaters can be revamped to suit new requirements of the plant unit they are
part of, or for energy conservation objective. In most cases, the revamp may
comprise the installation of an airpreheater system or addition of tube bundles
in the convection section. At other times, the revamp may be more complex, involving
changes in the heater itself.
Hydrocracker heater with 4 pass process and steam superheat
duty in radiant section.
Same heater after elimination of steam superheat coul and
increase of process capacity by expanding to 6 passes.
A stand-alone convection section addendum in transport
The convection section addendum on site