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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 |
| 6401455 |
Exhaust emission control system for the exhaust gas of a diesel engine |
Jun. 11, 2002 |
| 6403046 |
Pollution control systems using urea and ammonia for the control of emissions from the flue gas of fossil fuel burning facilities |
Jun. 11, 2002 |
| 6399034 |
Process for reducing nitrogen oxides on SCR catalyst |
Jun. 4, 2002 |
| 6399035 |
Reduction purification method of nitrogen oxide-containing exhaust gas |
Jun. 4, 2002 |
| 6399036 |
Use of solid hydroxides as scavenging materials for cyanide gas |
Jun. 4, 2002 |
| 6395244 |
Storage catalyst |
May. 28, 2002 |
| 6387336 |
Method and device for selective catalytic NOx reduction |
May. 14, 2002 |
| 6387338 |
Preparation of multi-component Ce, Zr, Mox high oxygen-ion-conduct/oxygen-storage-capacity materials |
May. 14, 2002 |
| 6382600 |
Device for introducing a reducing agent into an exhaust pipe segment of an internal combustion engine |
May. 7, 2002 |
| 6383463 |
Exhaust gas denitration method |
May. 7, 2002 |
| 6379432 |
Method and compound for the selective adsorption of nitrogen oxides |
Apr. 30, 2002 |
| 6379536 |
NOx reduction compositions for use in FCC processes |
Apr. 30, 2002 |
| 6379638 |
Method for removing harmful components from a gaseous mixture |
Apr. 30, 2002 |
| 6379640 |
Process for the decomposition of nitrous oxide |
Apr. 30, 2002 |
| 6375910 |
Multi-zoned catalytic trap and methods of making and using the same |
Apr. 23, 2002 |
| 6368566 |
Flue gas pipe and method for treating flue gas |
Apr. 9, 2002 |
| 6365118 |
Reduction of NOx in the exhaust from leanOx internal combustion engines |
Apr. 2, 2002 |
| 6361754 |
Reducing no emissions from an engine by on-demand generation of ammonia for selective catalytic reduction |
Mar. 26, 2002 |
| 6355220 |
Method for treating exhaust gas of internal combustion engines functioning with sulphur-containing fuel |
Mar. 12, 2002 |
| 6350421 |
Nitrogen oxide storage material and nitrogen oxide storing catalyst prepared therefrom |
Feb. 26, 2002 |
| 6348178 |
Method for reducing NOx from exhaust gases produced by industrial processes |
Feb. 19, 2002 |
| 6342194 |
NF3 treating process |
Jan. 29, 2002 |
| 6334986 |
Process for the selective catalytic reduction of the nitrogen oxides contained in a lean exhaust gas |
Jan. 1, 2002 |
| 6331281 |
Process and apparatus for cleaning exhaust gas |
Dec. 18, 2001 |
| 6328941 |
Thermal decomposition of N2O |
Dec. 11, 2001 |
| 6325984 |
Pd/NaOH-Al2O3 Catalyst for Nox abatements |
Dec. 4, 2001 |
| 6325985 |
Method and apparatus for reducing NOx emissions in CFB reactors used for combustion of fuel containing large amounts of volatile combustible components |
Dec. 4, 2001 |
| 6322762 |
Method using on site generated ammonia to reduce particulates |
Nov. 27, 2001 |
| 6315968 |
Process for separating acid gases from gaseous mixtures utilizing composite membranes formed from salt-polymer blends |
Nov. 13, 2001 |
| 6315969 |
Gas re-circulation selective catalytic reduction system with heat trace |
Nov. 13, 2001 |
| 6309617 |
Solid for storing/releasing nitrogen oxides as well as nitrogen oxide storage catalyst |
Oct. 30, 2001 |
| 6301879 |
Exhaust gas purification system for denoxing exhaust gases from combustion units |
Oct. 16, 2001 |
| 6299847 |
Ammonia catalytic abatement apparatus and method |
Oct. 9, 2001 |
| 6300269 |
Pillaring of trioctahedral micas and vermiculites |
Oct. 9, 2001 |
| 6295809 |
Emission control system with a catalyst |
Oct. 2, 2001 |
| 6296821 |
Complex shaped fiber for particle and molecular filtration |
Oct. 2, 2001 |
| 6296822 |
Process for manufacturing nox traps with improved sulfur tolerance |
Oct. 2, 2001 |
| 6294140 |
Layered noble metal-containing exhaust gas catalyst and its preparation |
Sep. 25, 2001 |
| 6294141 |
Emission control |
Sep. 25, 2001 |
| 6287527 |
Method for controlling exhaust emission |
Sep. 11, 2001 |
| 6284211 |
Exhaust gas cleaner and method for removing nitrogen oxides |
Sep. 4, 2001 |
| 6280607 |
NOx reduction compositions for use in FCC processes |
Aug. 28, 2001 |
| 6280694 |
Single stage denitration |
Aug. 28, 2001 |
| 6280695 |
Method of reducing NOx in a combustion flue gas |
Aug. 28, 2001 |
| 6277346 |
Photocatalyst composite and process for producing the same |
Aug. 21, 2001 |
| 6274106 |
Oxide gas absorbing arrangement and method |
Aug. 14, 2001 |
| 6266955 |
Diagnostic system for an emissions control on an engine |
Jul. 31, 2001 |
| 6267937 |
Heating of a storage trap |
Jul. 31, 2001 |
| 6267940 |
Method for reducing NOx with an activated catalyst |
Jul. 31, 2001 |
| 6264905 |
Method and apparatus for reducing "ammonia slip" in SCR and/or SNCR NOX removal applications |
Jul. 24, 2001 |
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