Appeal No. 1997-2674
Application No. 08/266,809
therein in a direction of flow, the boiler including
an opening, the method comprising:
mounting a conduit having a nozzle, the conduit
being activable for injecting NO inhibiting reagent,
x
and mounting the conduit such that the conduit and
nozzle are movable into the gas in the boiler
through the opening and movable out of the gas and
out of the opening;
sensing a temperature of the gas in the boiler;
when the temperature of the gas is sensed to be
within a selected range, activating the conduit to
insert the nozzle into the gas through the opening
and activating the conduit to spray reagent through
the nozzle into the gas; and
when the temperature of the gas is sensed to be
outside the selected range, activating the conduit
to withdraw the nozzle from the gas and out of the
opening, and deactivating the conduit so that no
reagent is supplied through the conduit to the
nozzle.
The subject matter on appeal generally relates to a
method for injecting NO inhibiting liquid reagent into the
x
flue gas of a utility or industrial type boiler in order to
reduce the emission of NO (specification, page 3, lines 2-5).
x
The appellant states that the main goal of the invention is to
enable NO liquid reagent to be used in an appropriate
x
temperature window at the most efficient location within the
flue gas passageways in order to maximize pollution control
2
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