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Fluid Bed Waste Heat Boiler Operating Experience in Dirty Gas Streams
Abstract
The first industrial fluid bed waste heat
boiler in the U. S. is operating on an aluminium
melting furnace at the ALCOA Massena Integrated
Aluminum Works in upstate New York. Waste heat from
an aluminum melting furnace is captured for general
plant use for the first time in this plant. It is
accomplished with advanced fluid bed heat recovery
that typically can save energy equivalent to 40% of
the furnace firing rate.
Previous attempts to recovery energy conventionally
on this type of furnace were unsuccessful
due to fouling. The resolution of this fouling
problem by using an automatically self-cleaning
Fluidfire fluid bed unit is discussed. The paper
further discusses how this project incorporates
unique technology which increases the inlet gas
temperature capability by 57% and reduces casing
size by 40% over fluid bed heat recovery in Japan
and Europe. Also that the Fluidfire unit is operating
well and has demonstrated the characteristics
required.
The paper explains how experience in the difficult
environment of an aluminum melter flue is indicative
of the fluid bed system's capability to withstand
most other difficult industrial operating
conditions.
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Citation
Kreeger, A. H. (1986). Fluid Bed Waste Heat Boiler Operating Experience in Dirty Gas Streams. Energy Systems Laboratory (http://esl.tamu.edu). Available electronically from https : / /hdl .handle .net /1969 .1 /92959.