US 4,302,226 AGranted

Apparatus for neutralizing odors

AssigneeQuad Environmental Technologies Corp.

InventorsHarold J. Rafson, Egbert deVries

Life of this patent

Estimating the term…

Loading patent…

Abstract

Apparatus, particularly adapted to the removal of odorous constituents from waste gas streams, is described. The apparatus comprises a treatment vessel or chamber preferably of cylindrical shape containing a coaxially-mounted exhaust duct which serves also as a columnar support for the chamber top or roof. As odorous gas is introduced tangentially into an upper portion of the reactor and is caused to move in a spiral flow around the central column. A finely-divided spray of a reagent reactive toward the odorous compound is introduced into the chamber through nozzles ringing the chamber wall or mounted in the chamber roof. Reagent droplets coalesce on the chamber floor and are removed from the vessel. The treated gas exhausts up the central duct through openings located near the bottom thereof.

Claims11

Dependent claims

Gas treatment apparatus consisting essentially of a closed cylindrical vessel;

gas entry means disposed in an upper portion of said vessel, said entry means arranged to cause gas to tangentially enter the vessel;
a columnar duct with an unobstructed interior area having gas exit means in a lower portion disposed coaxially within said vessel and extending continuously from the vessel floor to the vessel roof, said duct fixedly attached to both said floor and said roof to form a structural support for said vessel and to define an annular area between said duct and the vessel wall, said area providing an unobstructed passage for gas flow from said gas entry to said gas exit;
a plurality of nozzles disposed in an upper portion of said vessel, said nozzles adapted to inject a very finely divided liquid spray having a median droplet diameter less than about 10 microns into only said annular area formed by the vessel wall and the columnar duct, and
liquid exit means communicating between the floor of said annular area and the exterior of said vessel.

1 more element

Dependencies are inferred from the claim text.