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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:

Class Number Class Name Patents
423/239.2 Zeolite 229


Patents under this class:

Patent Number Title Of Patent Date Issued
6955799 High temperature decomposition of hydrogen peroxide Oct. 18, 2005
6953558 Process for reducing nitrogen oxide emissions Oct. 11, 2005
6948308 Combatting air pollution Sep. 27, 2005
6946107 Conversion of nitrogen oxides in the presence of a catalyst supported on a mesh-like structure Sep. 20, 2005
6941742 Method and device for reducing the number of particles in an exhaust gas Sep. 13, 2005
6942841 Process for treating fluorine compound-containing gas Sep. 13, 2005
6936232 Process and apparatus for removing NOx from engine exhaust gases Aug. 30, 2005
6928807 Method and apparatus for producing ammonia (NH3) Aug. 16, 2005
6926875 Porous material process of producing the porous material, catalyst for purifying exhaust gas comprising the porous material, method of purifying exhaust gas Aug. 9, 2005
6923945 Layered SOX tolerant NOX trap catalysts and methods of making and using the same Aug. 2, 2005
6916457 Preparation and use of non-chrome catalysts for Cu/Cr catalyst applications Jul. 12, 2005
6913737 Method for the treating in exhaust gas and exhaust gas treating system Jul. 5, 2005
6901748 Heater system for diesel engines having a selective catalytic reduction system Jun. 7, 2005
6893997 Exhaust gas purifying catalyst and method for purifying exhaust gas May. 17, 2005
6890499 Catalyst for decomposing N2O, its use and method for the production thereof May. 10, 2005
6890500 Salt-templated microporous solids May. 10, 2005
6887443 Exhaust gas purifying catalyst and method for purifying exhaust gas May. 3, 2005
6883305 Method for cleaning exhaust gas from an internal combustion engine Apr. 26, 2005
6881390 NOx reduction compositions for use in FCC processes Apr. 19, 2005
6878359 Process and device for the selective catalytic reduction of nitrogen oxides in an oxygen-containing gaseous medium Apr. 12, 2005
6875409 Catalyst and process for oxidation and removal of nitrogen oxides (NOx) from combustion gases Apr. 5, 2005
6872371 Method and apparatus for NOx and SO2 removal Mar. 29, 2005
6866834 NOx reduction catalyst and NOx reduction system Mar. 15, 2005
6863874 Process and apparatus for treating combustion exhaust gas Mar. 8, 2005
6863875 Flue gas treating system and process Mar. 8, 2005
6855303 Method for selective catalytic reduction of nitrogen oxides Feb. 15, 2005
6852298 NOx reduction composition for use in FCC processes Feb. 8, 2005
6848374 Control of mercury emissions from solid fuel combustion Feb. 1, 2005
6846471 Catalyst for decomposing nitrous oxide, process for producing the same and method for decomposing nitrous oxide Jan. 25, 2005
6843971 Process and catalyst for reducing nitrogen oxides Jan. 18, 2005
6805849 System for NOx reduction in exhaust gases Oct. 19, 2004
6806225 Catalyst for exhaust gas purification, process for producing the same, and method of purifying exhaust gas Oct. 19, 2004
6797247 Material with a channel structure for eliminating oxides of nitrogen Sep. 28, 2004
6793903 High temperature decomposition of hydrogen peroxide Sep. 21, 2004
6790808 Exhaust gas purifying catalyst Sep. 14, 2004
6787023 Metal-containing macrostructures of porous inorganic oxide, preparation thereof, and use Sep. 7, 2004
6770251 Exhaust gas purifying catalyst Aug. 3, 2004
6770252 Rolling regeneration diesel particulate trap Aug. 3, 2004
6764665 Layered catalyst composite Jul. 20, 2004
6761863 Process for the removal of impurities from gas streams Jul. 13, 2004
6759564 Hydrate-based decontamination of toxic gases Jul. 6, 2004
6759020 Spark-ignited internal combustion engine oxide gas absorbing arrangement and method Jul. 6, 2004
6759021 Method and device for introducing a gaseous reducing agent of a nitrogen oxide into a gas mixture Jul. 6, 2004
6743271 Air filter for gasoline and diesel engines Jun. 1, 2004
6743404 Method for the catalytic decomposition of N2O Jun. 1, 2004
6743749 Photocatalyst Jun. 1, 2004
6737032 Method of introducing a reaction medium into a first reaction medium flowing in a flow channel and for intensive mixing of the reaction media May. 18, 2004
6737033 Method and device for the catalytic removal of a pollutant contained in an exhaust gas of a combustion system May. 18, 2004
6735541 Process unit monitoring program May. 11, 2004
6730280 Methods for the production of ammonia from urea and/or biuret, and uses for NOx and/or particulate matter removal May. 4, 2004



 
 
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