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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 |
| 6723295 |
High-temperature stabile catalysts for decomposing N2O |
Apr. 20, 2004 |
| 6716783 |
Catalysts for lean burn engine exhaust abatement |
Apr. 6, 2004 |
| 6713030 |
Process and apparatus for reducing the nitrogen oxide content in exhaust gases by the controlled addition of NH3 |
Mar. 30, 2004 |
| 6713031 |
Structured catalysts for selective reduction of nitrogen oxides by ammonia using a compound that can be hydrolyzed to ammonia |
Mar. 30, 2004 |
| 6709643 |
Catalyst and method of use in the reduction of nitrogen oxides using lower hydrocarbons |
Mar. 23, 2004 |
| 6706246 |
System and method for the selective catalytic reduction of nitrogen oxide in a gas stream |
Mar. 16, 2004 |
| 6699448 |
SOx tolerant NOx trap catalysts and methods of making and using the same |
Mar. 2, 2004 |
| 6696031 |
Treatment of exhaust gas |
Feb. 24, 2004 |
| 6692712 |
Exhaust gas catalyst comprising rhodium, zirconia and rare earth oxide |
Feb. 17, 2004 |
| 6685897 |
Highly-basic large-pore zeolite catalysts for NOx reduction at low temperatures |
Feb. 3, 2004 |
| 6685898 |
Hydrophobic catalytic materials and method of forming the same |
Feb. 3, 2004 |
| 6682709 |
Method for reducing NOx from exhaust gases produced by industrial processes |
Jan. 27, 2004 |
| 6682710 |
Catalytic reduction of nitrous oxide content in gases |
Jan. 27, 2004 |
| 6680037 |
Device and method for removing sooty particulate from exhaust gases from combustion processes |
Jan. 20, 2004 |
| 6667017 |
Process for removing environmentally harmful compounds |
Dec. 23, 2003 |
| 6656439 |
Pillared trioctahedral micas and/or vermiculites |
Dec. 2, 2003 |
| 6652821 |
Purificating agent for flue gas and incinerated ash and purificating method using the same |
Nov. 25, 2003 |
| 6649133 |
Catalyst for purifying exhaust gas, process for producing the same, and method for purifying exhaust gas |
Nov. 18, 2003 |
| 6649134 |
Method and apparatus for reducing nitrous oxide |
Nov. 18, 2003 |
| 6645447 |
Devices and method for chemical reactive filtration |
Nov. 11, 2003 |
| 6645902 |
Adsorbent having capability of decomposing organic halogen compounds and method for producing the same |
Nov. 11, 2003 |
| 6641785 |
Catalytic converter and method for cleaning exhaust gas |
Nov. 4, 2003 |
| 6641788 |
Absorbent for a hydrocarbon, and exhaust gas-purifying catalyst |
Nov. 4, 2003 |
| 6641789 |
Device and method for decomposing nitrogen oxides |
Nov. 4, 2003 |
| 6641790 |
Method for removing nitrogen oxides using natural manganese ores |
Nov. 4, 2003 |
| 6638485 |
Process for treating exhaust gas and exhaust gas treating equipment |
Oct. 28, 2003 |
| 6638486 |
Catalyst for purification of exhaust gases, production process therefor, and process for purification of exhaust gases |
Oct. 28, 2003 |
| 6625976 |
Three-way conversion catalysts and methods for the preparation therefor |
Sep. 30, 2003 |
| 6623715 |
Complex shaped fiber for particle and molecular filtration |
Sep. 23, 2003 |
| 6623716 |
Exhaust gas purifying catalyst |
Sep. 23, 2003 |
| 6620391 |
Process for the catalytic cleaning of the exhaust gas from a combustion plant |
Sep. 16, 2003 |
| 6620392 |
Catalyst for purifying exhaust gas and method for purifying exhaust gas with the catalyst |
Sep. 16, 2003 |
| 6620393 |
Method and apparatus for reducing "ammonia slip" in SCR and/or SNCR NOx removal applications |
Sep. 16, 2003 |
| 6616903 |
Method and apparatus for treating the atmosphere |
Sep. 9, 2003 |
| 6616904 |
Method of removing nitrogen oxides using an ilmenite material |
Sep. 9, 2003 |
| 6613299 |
Catalyzed diesel particulate matter exhaust filter |
Sep. 2, 2003 |
| 6610263 |
System and process for removal of pollutants from a gas stream |
Aug. 26, 2003 |
| 6602479 |
Exhaust gas purifying catalyst |
Aug. 5, 2003 |
| 6596247 |
Method for purifying exhaust gas from internal combustion engines |
Jul. 22, 2003 |
| 6592833 |
Method of NOx abatement in high temperature lean NOx catalyst systems |
Jul. 15, 2003 |
| 6585944 |
Enhancement of the OSC properties of Ce-Zr based solid solutions |
Jul. 1, 2003 |
| 6585945 |
SOx tolerant NOx trap catalysts and methods of making and using the same |
Jul. 1, 2003 |
| 6579820 |
Reactor modifications for NOx reduction from a fluid catalytic cracking regeneration vessel |
Jun. 17, 2003 |
| 6579507 |
System and process for removal of pollutants from a gas stream |
Jun. 17, 2003 |
| 6569392 |
Three-way rare earth oxide catalyst |
May. 27, 2003 |
| 6569394 |
Catalyst body and process for breaking down nitrogen oxides |
May. 27, 2003 |
| 6558454 |
Method for removal of vapor phase contaminants from a gas stream by in-situ activation of carbon-based sorbents |
May. 6, 2003 |
| 6555079 |
Method and device for cleaning the atmosphere |
Apr. 29, 2003 |
| 6555081 |
Method of the purification of the exhaust gas from a lean-burn engine using a catalyst |
Apr. 29, 2003 |
| 6551564 |
Process for eliminating oxides of nitrogen |
Apr. 22, 2003 |
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