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WASTE HEAT BOILERS  in Chemical and Incineration plants

This 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.

Fire tube boilers behind sulfur recovery Claus plant is shown on the right. A common steam connects the two exchangers handling the gas streams.