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Class Information
Number: 423/213.2
Name: Chemistry of inorganic compounds > Modifying or removing component of normally gaseous mixture > Mixture is exhaust from internal-combustion engine > Utilizing as solid sorbent, catalyst, or reactant a material containing a transition element
Description: Processes, in which the material used to treat the gaseous mixture is in the solid-state and comprises a transition element, or compound thereof, and which functions to (1) modify a component, or (2) attract and retain a component, or (3) react with and chemically change a component.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7597865 |
Nitrogen oxide removal catalyst system and nitrogen oxide removal method |
Oct. 6, 2009 |
| 7597864 |
Control of mercury and other elemental metal emissions using reaction stabilization device |
Oct. 6, 2009 |
| 7595034 |
Catalytic process for reducing nitrogen oxides in flue gases and reducing agent composition |
Sep. 29, 2009 |
| 7591986 |
Exhaust emission control device and method for internal combustion engine, and engine control unit |
Sep. 22, 2009 |
| 7585477 |
Catalyst and method for catalytic reduction of nitrogen oxides |
Sep. 8, 2009 |
| 7585478 |
Exhaust-gas purifying catalyst |
Sep. 8, 2009 |
| 7575792 |
Honeycomb filter for clarifying exhaust gas and method for manufacture thereof |
Aug. 18, 2009 |
| 7569197 |
Process for purification of sulphur-containing exhaust gas |
Aug. 4, 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 |
| 7550125 |
Exhaust gas purification system |
Jun. 23, 2009 |
| 7550124 |
Layered catalyst composite |
Jun. 23, 2009 |
| 7541010 |
Silver doped catalysts for treatment of exhaust |
Jun. 2, 2009 |
| 7527774 |
Inlet metallic foam support coupled to precious metal catalyst for application on 4 stroke platforms |
May. 5, 2009 |
| 7524474 |
Process for preparing an oxide based on zirconium and titanium, oxides obtained thereby, and use of said oxides as catalytsts |
Apr. 28, 2009 |
| 7520909 |
Low temperature methods for hydrogen production |
Apr. 21, 2009 |
| 7521031 |
Method and apparatus for treating exhaust gas |
Apr. 21, 2009 |
| 7521033 |
Exhaust inlet metallic foam trap coupled to a downstream monolithic precious metal catalyst |
Apr. 21, 2009 |
| 7517510 |
Layered catalyst composite |
Apr. 14, 2009 |
| 7517511 |
Method and apparatus for mitigating mercury emissions in exhaust gases |
Apr. 14, 2009 |
| 7514055 |
Method of controlling emissions from a diesel cycle internal combustion engine with perovskite-type metal oxide compounds |
Apr. 7, 2009 |
| 7501105 |
NOx reduction catalyst having excellent low-temperature characteristics |
Mar. 10, 2009 |
| 7494634 |
Reduction of nitrogen oxides using multiple split streams |
Feb. 24, 2009 |
| 7491373 |
Flow-through honeycomb substrate and exhaust after treatment system and method |
Feb. 17, 2009 |
| 7488462 |
Multi-stage catalyst systems and uses thereof |
Feb. 10, 2009 |
| 7485270 |
Process for treating compression ignition engine exhaust gas |
Feb. 3, 2009 |
| 7485271 |
Catalyst structure for treating NO.sub.x containing exhaust gas from a lean burn engine |
Feb. 3, 2009 |
| 7485272 |
Multi-stage system for selective catalytic reduction |
Feb. 3, 2009 |
| 7485273 |
Method for the reduction of NO.sub.x and NH.sub.3 emissions |
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 |
| 7449162 |
Device for treatment of exhaust of an internal combustion engine |
Nov. 11, 2008 |
| 7445761 |
Method and system for providing compressed substantially oxygen-free exhaust gas for industrial purposes |
Nov. 4, 2008 |
| 7442354 |
Treatment of engine exhaust using molecular sieve SSZ-56 |
Oct. 28, 2008 |
| 7431749 |
Catalytic filter for removing soot particulates from diesel engine exhaust and method of preparing the same |
Oct. 7, 2008 |
| 7431905 |
Catalyst system and method for the reduction of NO.sub.x |
Oct. 7, 2008 |
| 7413720 |
Catalyst and method for reduction of nitrogen oxides |
Aug. 19, 2008 |
| 7402292 |
Device and methods of ammonia generation for NOx abatement |
Jul. 22, 2008 |
| 7396793 |
Exhaust gas purifying catalyst and process for purifying exhaust gas |
Jul. 8, 2008 |
| 7396516 |
Manganese containing oxygen storage component comprising three-way catalyst composition |
Jul. 8, 2008 |
| 7396517 |
Reduction of NOx emissions using a staged silver/alumina catalyst system |
Jul. 8, 2008 |
| 7393804 |
Exhaust gas purifying catalyst and process for purification of exhaust gas |
Jul. 1, 2008 |
| 7390469 |
Bimodal catalyst-urea SCR system for enhanced NO.sub.x conversion and durability |
Jun. 24, 2008 |
| 7387650 |
Fuel cell power generation system and method for operating the same |
Jun. 17, 2008 |
| 7368094 |
Plasma-assisted NO.sub.x reduction |
May. 6, 2008 |
| 7361319 |
Mixed metal oxide sorbents |
Apr. 22, 2008 |
| 7361320 |
Exhaust gas purification unit with reducing agent supply |
Apr. 22, 2008 |
| 7357901 |
Exhaust gas purification device for an internal combustion engine and exhaust gas purification method for an internal combustion engine |
Apr. 15, 2008 |
| 7357904 |
Reduction of oxides of nitrogen in a gas stream using molecular sieve SSZ-74 |
Apr. 15, 2008 |
| 7332142 |
Method and apparatus for bubble injection of agent into exhaust gas for use with emission abatement device |
Feb. 19, 2008 |
| 7267807 |
Method and device for treating automotive exhaust |
Sep. 11, 2007 |
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