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US 11,384,304 B2Granted
Method and additive for controlling nitrogen oxide emissions
AssigneeADA-ES, Inc.
InventorsWilliam J. Morris, Kenneth E. Baldrey, Constance Senior, Ramon Bisque
Life of this patent
Estimating the term…
Abstract
The present disclosure is directed to an additive mixture and method for controlling nitrogen oxide(s) by adding the additive mixture to a feed material prior to combustion.
Claims24
A composition, comprising:
- a nitrogenous material comprising one or more of ammonia and an ammonia precursor;
- a binder;
- and
- a thermal stability agent comprising one or more of a metal hydroxide, a metal carbonate, a metal bicarbonate, and ash,
- wherein:
- the thermal stability agent is bound by the binder to the nitrogenous material, and a molar ratio of the thermal stability agent to the nitrogenous material ranges from about 1:1 to about 10:1.
3 more elements
A composition, comprising:
- a nitrogenous material comprising one or more of ammonia, an amine, an amide, cyanuric acid, a nitride, and a urea;
- and
- a thermal stability agent comprising one or more of a metal hydroxide, a metal carbonate, a metal bicarbonate, and ash,
- wherein the thermal stability agent is bound to and substantially surrounds the nitrogenous material and forms, when the composition is combusted, one or more of a thermally protective barrier and a heat sink around the nitrogenous material to reduce thermal degradation of the nitrogenous material, and
- wherein a molar ratio of the thermal stability agent to the nitrogenous material ranges from about 1:1 to about 10:1.
2 more elements
A composition, comprising:
- a nitrogenous material comprising one or more of ammonia, an amine, an amide, cyanuric acid, a nitride, and a urea;
- a binder;
- and
- a thermal stability agent comprising one or more of an alkali metal hydroxide, an alkali metal carbonate, an alkali metal bicarbonate, an alkaline earth metal hydroxide, an alkaline earth metal carbonate, and an alkaline earth metal bicarbonate,
- wherein a molar ratio of the thermal stability agent to the nitrogenous material ranges from about 1:1 to about 10:1.
2 more elements
Dependencies are inferred from the claim text.