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Class Information
Number: 423/239.1
Name: Chemistry of inorganic compounds > Modifying or removing component of normally gaseous mixture > Nitrogen or nitrogenous component > Utilizing solid sorbent, catalyst, or reactant
Description: Process in which the treating material is a solid and functions to (a) modify a component, (b) attract and retain a component, or (c) react with and chemically change a component.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7235223 |
Method for operating a flue gas purification plant |
Jun. 26, 2007 |
| 7235222 |
Process for treating waste anesthetic gas |
Jun. 26, 2007 |
| 7223375 |
Emission control systems and methods thereof |
May. 29, 2007 |
| 7220395 |
Methods for the production of ammonia from urea and/or biuret, and uses for NO.sub.x and/or particulate matter removal |
May. 22, 2007 |
| 7213395 |
Hybrid catalyst system for exhaust emissions reduction |
May. 8, 2007 |
| 7211232 |
Refractory exhaust filtering method and apparatus |
May. 1, 2007 |
| 7210288 |
Exhaust gas aftertreatment installation and method |
May. 1, 2007 |
| 7204965 |
Filter catalyst for purifying exhaust gases |
Apr. 17, 2007 |
| RE39553 |
SOx tolerant NOx trap catalysts and methods of making and using the same |
Apr. 10, 2007 |
| 7199078 |
Vehicle sulfur oxide trap and related method |
Apr. 3, 2007 |
| 7198769 |
Multi-stage process for SCR of NOx |
Apr. 3, 2007 |
| 7179767 |
Small-volume NO.sub.x adsorber |
Feb. 20, 2007 |
| 7175822 |
Method for catalytic reduction of nitrogen oxides |
Feb. 13, 2007 |
| 7175821 |
Reactor and process for reducing emissions of CO and NO.sub.x |
Feb. 13, 2007 |
| 7166262 |
Control for ammonia slip in selective catalytic reduction |
Jan. 23, 2007 |
| 7163668 |
Hydrogen selective catalytic reduction for NO.sub.x |
Jan. 16, 2007 |
| 7156957 |
UV induced oxidation of nitric oxide |
Jan. 2, 2007 |
| 7153810 |
Silver doped catalysts for treatment of exhaust |
Dec. 26, 2006 |
| 7146802 |
Reducing NO.sub.x emissions with a staged catalyst |
Dec. 12, 2006 |
| 7138097 |
Reduction of oxides of nitrogen in a gas stream using molecular sieve SSZ-73 |
Nov. 21, 2006 |
| 7125531 |
Single stage denitration |
Oct. 24, 2006 |
| 7119044 |
Multiple washcoats on filter substrate |
Oct. 10, 2006 |
| 7118721 |
Method for treating emissions |
Oct. 10, 2006 |
| 7118720 |
Method for combined removal of mercury and nitrogen oxides from off-gas streams |
Oct. 10, 2006 |
| 7105137 |
Catalyst for the reduction of NO to N.sub.2 with hydrogen under NOx oxidation conditions |
Sep. 12, 2006 |
| 7101531 |
Fuel reforming system and control therefor |
Sep. 5, 2006 |
| 7097817 |
Method for treating soot-containing exhaust |
Aug. 29, 2006 |
| 7083765 |
Catalysts for lean burn engine exhaust abatement |
Aug. 1, 2006 |
| 7083766 |
Reduction of oxides of nitrogen in a gas stream using molecular sieve SSZ-71 |
Aug. 1, 2006 |
| 7083767 |
Reduction of oxides of nitrogen in a gas stream using molecular sieve SSZ-70 |
Aug. 1, 2006 |
| 7078004 |
Diesel oxidation catalyst |
Jul. 18, 2006 |
| 7074378 |
Process for the purification of NF.sub.3 |
Jul. 11, 2006 |
| 7070746 |
Process for nitrous oxide purification |
Jul. 4, 2006 |
| 7067092 |
Treatment of gaseous emissions |
Jun. 27, 2006 |
| 7067319 |
System for diagnosing reagent solution quality and emissions catalyst degradation |
Jun. 27, 2006 |
| 7063817 |
Device for cleaning flue gas |
Jun. 20, 2006 |
| 7056478 |
Emission treatment system |
Jun. 6, 2006 |
| 7041263 |
Catalyst composition for purifying exhaust gas |
May. 9, 2006 |
| 7033547 |
Exhaust gas treating apparatus and vehicle equipped with the apparatus |
Apr. 25, 2006 |
| 7033548 |
System and process for removal of pollutants from a gas stream |
Apr. 25, 2006 |
| 7022297 |
Method and system for purifying or cleansing a gas stream or gaseous body |
Apr. 4, 2006 |
| 7014692 |
Scrubber |
Mar. 21, 2006 |
| 7014825 |
Perovskite-type metal oxide compounds and methods of making and using thereof |
Mar. 21, 2006 |
| 7011800 |
Single stage denitration |
Mar. 14, 2006 |
| 7011801 |
Method for the simultaneous removal of nitrogen oxides and laughing gas from a gas stream containing nitrogen oxides and laughing gas |
Mar. 14, 2006 |
| 7005116 |
Process for reducing nitrogen oxides |
Feb. 28, 2006 |
| 7000382 |
Partial oxidation of alcohols |
Feb. 21, 2006 |
| 6979430 |
System and method for controlling NO.sub.x emissions from boilers combusting carbonaceous fuels without using external reagent |
Dec. 27, 2005 |
| 6974565 |
System and process for removal of pollutants from a gas stream |
Dec. 13, 2005 |
| 6958136 |
Process for the treatment of waste streams |
Oct. 25, 2005 |
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