Single stage denitration

Details Single stage denitration Single stage denitration

Filed on

2006-10-24

Date issued

2006-10-24

Examiner

Johnson, Edward M. (Department: 1754)

Patent Class

Chemistry of inorganic compounds

SubClass

Modifying or removing component of normally gaseous mixture

SubSubClass

Nitrogen or nitrogenous component

Other Related Categories

C423S235000

Type

Reexamination Certificate

Status

active

Patent number

07125531

Description

ABSTRACT:
A system and method is described having a single reaction vessel (12) using superheated stream optionally augmented by oxygen for reducing nitrogen oxides present in a wide variety of organic compounds. Reduction takes place quickly when a stream/oxygen mixture is injected into a fluidized bed (22) of ceramic beads. Reducing additives are metered into the reaction vessel (12) and/or provide energy input to reduce nitrates to nitrogen. The speed of the fluidizing gas mixture agitates the beads that then help to break up solid wastes and to allow self-cleaning through abrasion thereby eliminating agglomerates, and the oxygen, when used, allows for some oxidation of waste by-products and provides an additional offset for thermal requirements of operation.

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