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Wheelabrator dry injection systems are an
economical, reliable choice for applications
requiring lower levels
of SO2 and acid gas emission control. It
is a completely dry
process with regard to reagent prparation and
reacted product collection. Water
can be used, if needed, to
lower the gas temperature and enhance reagent utilization.
The
simplicity of design and consequent lower capital and maintenance
cost offer
a cost effective advantage over other designs.
Absorbents for a variety of
applications.
Gas stream injection techniques vary depending on the material
to be collected
and the absorbent utilized. Calcium hydroxide is injected in an upstream venturi
reactor or dry
scrubber reactor to control SO2 and HCI from
municipal refuse-fired
boilers. Alumina is injected into
individual fabric filter compartments for aluminum pot
line HF
control, and the reaction products can be recycled in the smelting
process.
To collect condensable particulate from coke oven pushing operations
and for acid
gas removal in secondary metals processing, a separate,
ambient air-fluidized
pre-coat system is used to pre-coat the
fabric.
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