Method and apparatus for the production of gaseous ammonia...

Chemistry of inorganic compounds – Nitrogen or compound thereof – Ammonia or ammonium hydroxide

Reexamination Certificate

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C423S355000, C423S356000, C204S157420, C204S157460

Reexamination Certificate

active

07416715

ABSTRACT:
A safe, economical and predictable process for producing ammonia from a urea solution, preferably where only a small amount of ammonia is required, (i.e. for SCR denitrification for small boilers, flue gas conditioning to enhance precipitator efficiency and/or alleviate plume problems, SNCR and the like), using an ultrasonic processor to cause “cold boiling” of portions of such solution and produce gaseous ammonia.

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patent: 6093380 (2000-07-01), Lagana et al.
patent: 6500219 (2002-12-01), Gunnerman
patent: 2004/0057887 (2004-03-01), Sun et al.

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