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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 |
| 7611623 |
Separation method using an ITQ-29 zeolite material |
Nov. 3, 2009 |
| 7608232 |
Treatment method and treatment apparatus for gas containing nitrous oxide |
Oct. 27, 2009 |
| 7608226 |
Exhaust stream treatment |
Oct. 27, 2009 |
| 7601316 |
Method of reducing NOx and particulates from internal combustion engines |
Oct. 13, 2009 |
| 7601189 |
Filtration method and a filter device for removing impurities from the air of a limited space and an apparatus for removing carbon dioxide from the air of an air-raid shelter |
Oct. 13, 2009 |
| 7597865 |
Nitrogen oxide removal catalyst system and nitrogen oxide removal method |
Oct. 6, 2009 |
| 7597858 |
Process and apparatus for treating waste anesthetic gas |
Oct. 6, 2009 |
| 7595034 |
Catalytic process for reducing nitrogen oxides in flue gases and reducing agent composition |
Sep. 29, 2009 |
| 7595033 |
Regeneration of nt-scr catalysts |
Sep. 29, 2009 |
| 7591987 |
Method and apparatus for treating ammonia-containing gas |
Sep. 22, 2009 |
| 7591986 |
Exhaust emission control device and method for internal combustion engine, and engine control unit |
Sep. 22, 2009 |
| 7588742 |
Purification of a mixture of H.sub.2/CO by catalysis of the NOx |
Sep. 15, 2009 |
| 7588440 |
Carrier air heating system for SCR |
Sep. 15, 2009 |
| 7585477 |
Catalyst and method for catalytic reduction of nitrogen oxides |
Sep. 8, 2009 |
| 7582202 |
Composition comprising a metal hydroxy salt, its preparation and use as catalyst or sorbent |
Sep. 1, 2009 |
| 7572637 |
Method for controlling exhaust emission control device |
Aug. 11, 2009 |
| 7566431 |
Method for the treatment of combustion flue gas |
Jul. 28, 2009 |
| 7563423 |
Method and apparatus for catalyst regeneration |
Jul. 21, 2009 |
| 7563422 |
Method for reducing a particle and nitrogen oxide proportion in an exhaust gas flow of an internal combustion engine and corresponding exhaust gas treatment unit |
Jul. 21, 2009 |
| 7560409 |
Photo-oxidation catalysts |
Jul. 14, 2009 |
| 7550125 |
Exhaust gas purification system |
Jun. 23, 2009 |
| 7550124 |
Layered catalyst composite |
Jun. 23, 2009 |
| 7544338 |
Mercury removal system and mercury removal process |
Jun. 9, 2009 |
| 7544328 |
Structure for reducing agent container |
Jun. 9, 2009 |
| 7541010 |
Silver doped catalysts for treatment of exhaust |
Jun. 2, 2009 |
| 7537742 |
Process and adsorbent for hydrogen purification |
May. 26, 2009 |
| 7527776 |
Ammonia SCR catalyst and method of using the catalyst |
May. 5, 2009 |
| 7521033 |
Exhaust inlet metallic foam trap coupled to a downstream monolithic precious metal catalyst |
Apr. 21, 2009 |
| 7521031 |
Method and apparatus for treating exhaust gas |
Apr. 21, 2009 |
| 7517510 |
Layered catalyst composite |
Apr. 14, 2009 |
| 7514055 |
Method of controlling emissions from a diesel cycle internal combustion engine with perovskite-type metal oxide compounds |
Apr. 7, 2009 |
| 7510692 |
Hydride gas purification for the semiconductor industry |
Mar. 31, 2009 |
| 7507287 |
Activated carbon as mercury release control agent in gypsum calcination |
Mar. 24, 2009 |
| 7501106 |
Denitrification catalyst regeneration method |
Mar. 10, 2009 |
| 7501104 |
Apparatus and method for treating discharge gas |
Mar. 10, 2009 |
| 7498010 |
Catalytic reduction of NO.sub.x |
Mar. 3, 2009 |
| 7494634 |
Reduction of nitrogen oxides using multiple split streams |
Feb. 24, 2009 |
| 7488462 |
Multi-stage catalyst systems and uses thereof |
Feb. 10, 2009 |
| 7485276 |
Method for the removal of No.sub.x and N.sub.2O from the tail gas in nitric acid production |
Feb. 3, 2009 |
| 7485273 |
Method for the reduction of NO.sub.x and NH.sub.3 emissions |
Feb. 3, 2009 |
| 7485272 |
Multi-stage system for selective catalytic reduction |
Feb. 3, 2009 |
| 7485271 |
Catalyst structure for treating NO.sub.x containing exhaust gas from a lean burn engine |
Feb. 3, 2009 |
| 7482303 |
Catalytic burning reaction |
Jan. 27, 2009 |
| 7468171 |
Process using microwave energy and a catalyst to decompose nitrogen oxides |
Dec. 23, 2008 |
| 7464012 |
Simplified process simulator |
Dec. 9, 2008 |
| 7462340 |
Method and device for reducing the NO.sub.X and N.sub.2O of gases |
Dec. 9, 2008 |
| 7459135 |
Method for the removal of NO.sub.x and catalyst therefor |
Dec. 2, 2008 |
| 7449162 |
Device for treatment of exhaust of an internal combustion engine |
Nov. 11, 2008 |
| 7442352 |
Flue gas purification process using a sorbent polymer composite material |
Oct. 28, 2008 |
| 7438876 |
Multi-stage heat absorbing reactor and process for SCR of NOx and for oxidation of elemental mercury |
Oct. 21, 2008 |
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