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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 |
| 6551565 |
Process of removing nitrogen oxides from flue gases from a fluidized catalytic cracking unit |
Apr. 22, 2003 |
| 6546717 |
Combatting air pollution |
Apr. 15, 2003 |
| 6548033 |
Spare selective catalytic reduction reactor system |
Apr. 15, 2003 |
| 6539709 |
Exhaust gas purifying system of internal combustion engine |
Apr. 1, 2003 |
| 6537946 |
Exhaust gas purifying catalyst |
Mar. 25, 2003 |
| 6534439 |
Catalyst for reducing nitrogen oxides in oxidizing and reducing atmospheres |
Mar. 18, 2003 |
| 6524372 |
Silica gel incorporating polyazacycloalkane structural units |
Feb. 25, 2003 |
| 6517794 |
Method for removing nitrogen oxides from an oxygen-containing flue gas stream |
Feb. 11, 2003 |
| 6517797 |
Process for separation of NOx from N2O in a mixture |
Feb. 11, 2003 |
| 6514320 |
Process for absorbing nitrogen oxides from gas mixtures containing said oxides |
Feb. 4, 2003 |
| 6514470 |
Catalysts for lean burn engine exhaust abatement |
Feb. 4, 2003 |
| 6511640 |
Purification of gases |
Jan. 28, 2003 |
| 6511642 |
Porous material, catalyst, method of producing the porous material and method for purifying exhaust gas |
Jan. 28, 2003 |
| 6506350 |
Method using on site generated ammonia to reduce particulates in combustion gas streams |
Jan. 14, 2003 |
| 6506351 |
Removal of nitrogen oxides from gas streams |
Jan. 14, 2003 |
| 6503469 |
Method for processing polluted fluid containing pollutants |
Jan. 7, 2003 |
| 6503472 |
Method for removal of nitrogen oxides from gaseous streams by cayalytic carbon in the presence of ammonia |
Jan. 7, 2003 |
| 6500398 |
Method and apparatus for decomposing N2O |
Dec. 31, 2002 |
| 6491885 |
Exhaust gas processing method |
Dec. 10, 2002 |
| 6491886 |
Method for treating gases to reduce nitrogen oxide emissions |
Dec. 10, 2002 |
| 6492298 |
Ordinary-temperature purifying catalyst |
Dec. 10, 2002 |
| 6488903 |
Method for cleaning diesel engine exhaust gas |
Dec. 3, 2002 |
| 6488906 |
Method for removing nitrogen oxides in exhaust gas |
Dec. 3, 2002 |
| 6482376 |
Process for the catalytic removal of polycyclic aromatic nitro, nitroso and/or amino compounds |
Nov. 19, 2002 |
| 6482377 |
Method for bypassing sulfur dioxide around an aftertreatment device in an exhaust gas aftertreatment system |
Nov. 19, 2002 |
| 6479026 |
Method of denitrating exhaust gas |
Nov. 12, 2002 |
| 6475452 |
Composition based on manganese and use for trapping NOx for treating exhaust gases |
Nov. 5, 2002 |
| 6475453 |
Configuration for decomposing nitrogen oxides in a gas stream and method for using the configuration |
Nov. 5, 2002 |
| 6475944 |
Vanadia catalyst impregnated on titania-pillared clay for the removal of nitrogen oxide |
Nov. 5, 2002 |
| 6471923 |
Process for adsorbing and desording oxides of nitrogen |
Oct. 29, 2002 |
| 6471924 |
Method and apparatus for NOx abatement in lean gaseous streams |
Oct. 29, 2002 |
| 6471926 |
Method of using aerogel honeycomb catalyst monoliths for selective catalytic reaction of gas phase chemical species |
Oct. 29, 2002 |
| 6471927 |
Process for converting urea into ammonia |
Oct. 29, 2002 |
| 6468484 |
NO2 abatement composition with enhanced sulfur resistance |
Oct. 22, 2002 |
| 6468487 |
Nitration or carboxylation catalysts |
Oct. 22, 2002 |
| 6468488 |
Mg-Al anionic clay having 3R2 stacking |
Oct. 22, 2002 |
| 6468489 |
Apparatus and method for decreasing contaminants present in a gas stream |
Oct. 22, 2002 |
| 6464952 |
Sulfur dioxide abatement method |
Oct. 15, 2002 |
| 6461579 |
Catalyst for purifying exhaust gas and exhaust gas purifying method |
Oct. 8, 2002 |
| 6455463 |
Alkaline earth/transition metal lean NOx catalyst |
Sep. 24, 2002 |
| 6451094 |
Apparatus and method for removal of vapor phase contaminants from a gas stream by in-situ activation of carbon-based sorbents |
Sep. 17, 2002 |
| 6440378 |
Catalyst for purifying exhaust gases, a method of producing the same, and a method of purifying exhaust gases |
Aug. 27, 2002 |
| 6436359 |
Method for controlling the production of ammonia from urea for NOx scrubbing |
Aug. 20, 2002 |
| 6432373 |
Method for removing nitrogen oxides from exhaust gas |
Aug. 13, 2002 |
| 6423283 |
Method for removing NOx |
Jul. 23, 2002 |
| 6419889 |
Catalyst, process of making catalyst and process for converting nitrogen oxide compounds |
Jul. 16, 2002 |
| 6419890 |
SOX tolerant NOX trap catalysts and methods of making and using the same |
Jul. 16, 2002 |
| 6413483 |
Catalytic converter for a lean burn internal combustion engine |
Jul. 2, 2002 |
| 6414213 |
Titanium oxide particle-coated interior member or indoor equipment |
Jul. 2, 2002 |
| 6401449 |
Expanded grid static mixer |
Jun. 11, 2002 |
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