boiler recovers energy from an incineration plant.It uses an elevated drum
fire tube boiler,followed by a low temperature superheater and an economizer.
Picture below (left) shows a waste heat boiler for handling high temperature exhaust gases from a carbon black plant.A water cooled furnace is used to cool the gas stream.
tube boilers behind sulfur recovery Claus plant is shown on the right.
A common steam connects the two exchangers handling the gas streams.