IP Library › Granted Patent US 12,496,549
Granted Patent B2
US 12,496,549 · App. 18/239,105 · Granted Dec 16, 2025

Removal of atmospheric pollutants from gas, related apparatus, processes and uses thereof

Inventors: Roger Glenn Miller (Fullerton, CA); Larry Kent Barnthouse (Santa Ana, CA); Robert George Richardson (Shingletown, CA)
Assignee: Intelligent Abatement, LLC
B01D53/56B01D53/50B01D53/60B01D53/76B01F23/2132B01F25/3131B01F25/31332B01F25/4316B01J19/006B01J19/1806B01J19/2405B01D53/346B01D2251/108B01D2258/06B01D2259/4508B01F25/4319B01F25/431974B01J2219/00779Y02A50/20
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Quick Facts
Patent No.
US 12,496,549
App. No.
18/239,105
Granted
Dec 16, 2025
Kind
B2
Abstract

Methods related generally to the removal of atmospheric pollutants from the gas phase, are provided. The methods involve contacting a first stream comprising NO and/or NO 2 with a second stream comprising (ClO 2 ) 0 to provide a third stream comprising NO and NO 2 at a molar ratio of about 1:1; and contacting the third stream with a fourth stream comprising an aqueous metal hydroxide (MOH) solution to convert NO and NO 2 to MNO 2 .

Claims (21)

1 . A system for treating a gas stream comprising:

a reactor comprising a gas stream inlet for introducing the gas stream into the reactor, and an oxidant inlet for introducing an oxidant into the reactor;

a device disposed inside the reactor positioned and/or configured to contact the gas stream and/or oxidant passing through the reactor and produce a turbulent flow condition within the reactor; and

an oxidant generator comprising an oxidant outlet connected with the reactor, wherein the oxidant generator comprises an electrochemical device;

wherein the gas stream and oxidant are mixed together during passage within the reactor to cause a component in the gas stream to undergo reaction to produce a different component, compound, molecule, or atom.

2 . The system of claim 1 , wherein the gas stream comprises at least one of NO x and SO x gases.

3 . The system of claim 1 , wherein the reaction is a gas-phase reaction that takes place in a single stage.

4 . The system of claim 1 , wherein the oxidant is ClO 2 in a gas, mist, or liquid phase.

5 . The system of claim 1 , comprising a sensor configured to monitor one or more chemicals in the reactor and adjust the amount of oxidant provided to the reactor.

6 . The system of claim 1 , comprising a nozzle that is disposed inside of the reactor and connected with the oxidant inlet, wherein the nozzle is positioned and/or configured to dispense the oxidant into the gas stream within the reactor.

7 . The system of claim 1 , the oxidant inlet is positioned downstream from the gas stream inlet.

8 . A system for treating a gas stream comprising NO x and/or SO x gases comprising;

a reaction vessel comprising a gas stream inlet for introducing the gas stream into the reaction vessel, and an oxidant inlet for introducing ClO 2 into the reaction vessel; and

an oxidant generator comprising an oxidant outlet connected with the reaction vessel, wherein the oxidant generator comprises an electrochemical device;

wherein the gas stream and oxidant combine within the reaction vessel and undergo reaction to convert at least one NO x or SO x gases in the gas stream to at least one other component, compound, molecule, or atom.

9 . The system of claim 8 , comprising a sensor configured to monitor at least one of the component, compound, molecule, or atom from the reaction vessel.

10 . The system of claim 9 , wherein output from the sensor is used to adjust an amount of at least one of the gas stream and oxidant in the reactor.

11 . The system of claim 8 , wherein the oxidant inlet is positioned downstream of the gas inlet.

12 . The system of claim 9 , wherein output from the sensor is used to adjust at least one of a rate of reaction and an amount of reaction within the reaction vessel.

13 . The system of claim 8 , wherein a nozzle is disposed inside of the reaction vessel and connected with the oxidant inlet to dispense the oxidant within the reaction vessel.

14 . The system of claim 13 , wherein the nozzle is configured or positioned within the reaction vessel to dispense the oxidant into the flow path of the gas stream.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 26, 2025
From: MILLER, ROGER GLENN; BARNTHOUSE, LARRY KENT
To: ALLOYS CLEANING, INC.
Reel/Frame 073047/0455 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 26, 2025
From: RICHARDSON, ROBERT GEORGE
To: ALLOYS CLEANING, INC.
Reel/Frame 073047/0819 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 26, 2025
From: ALLOYS CLEANING, INC.
To: INTELLIGENT ABATEMENT, LLC
Reel/Frame 073047/0924 →
Continuity (10)
Continuation 17229777 · Apr 13, 2021
Continuation 15702668 · Sep 12, 2017
Continuation 14666199 · Mar 23, 2015
Continuation 14537834 · Nov 10, 2014
Continuation 14126403
Provisional Application 61584347 · Jan 9, 2012
Provisional Application 61656192 · Jun 6, 2012
Provisional Application 61715149 · Oct 17, 2012
Provisional Application 61715146 · Oct 17, 2012
Related Publication 20240189766A1 · Jun 13, 2024
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