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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 |
| 5658543 |
Exhaust gas cleaner and method for cleaning same |
Aug. 19, 1997 |
| 5658545 |
Metal regeneration of iron chelates in nitric oxide scrubbing |
Aug. 19, 1997 |
| 5658546 |
Denitration catalyst |
Aug. 19, 1997 |
| 5656249 |
Exhaust gas cleaner and method for removing nitrogen oxides |
Aug. 12, 1997 |
| 5650127 |
NOx removal process |
Jul. 22, 1997 |
| 5645804 |
Method for cleaning exhaust gas containing nitrogen oxides |
Jul. 8, 1997 |
| 5645805 |
Reduction of acid rain and ozone depletion precursors |
Jul. 8, 1997 |
| 5635076 |
Treatment process for acrylonitrile plant wastewater streams |
Jun. 3, 1997 |
| 5635150 |
Sorption of acidic gases by solid residue from sugar refining |
Jun. 3, 1997 |
| 5633170 |
Method and apparatus for nitrogen oxide analysis |
May. 27, 1997 |
| 5626826 |
Zirconium/cerium mixed oxide catalyst/catalyst support compositions having high/stable specific surfaces |
May. 6, 1997 |
| 5618499 |
Catalyst outage protection system |
Apr. 8, 1997 |
| 5618505 |
Method for converting lean-burn engine exhust gases using a two stage catalyst system |
Apr. 8, 1997 |
| 5612009 |
Catalytic decomposition of dinitrogen monoxide |
Mar. 18, 1997 |
| 5612010 |
Selective catalytic reduction of nitrogen oxides |
Mar. 18, 1997 |
| 5612276 |
Adsorbents for removing low-concentration nitrogen oxides |
Mar. 18, 1997 |
| 5609839 |
No.sub.x removal catalyst and method of purifying exhaust gas by using the same |
Mar. 11, 1997 |
| 5603907 |
Process and device for treating fluids by means of a pourable solid by the countercurrent method |
Feb. 18, 1997 |
| 5603909 |
Selective catalytic reduction reactor integrated with condensing heat exchanger for multiple pollutant capture/removal |
Feb. 18, 1997 |
| 5591418 |
Process for removing sulfur oxides or nitrogen oxides from a gaseous mixture |
Jan. 7, 1997 |
| 5589146 |
Method for treating ammonia |
Dec. 31, 1996 |
| 5589432 |
Exhaust gas cleaner and method for cleaning same |
Dec. 31, 1996 |
| 5587134 |
Process for decomposing ammonia in an off-gas |
Dec. 24, 1996 |
| 5587135 |
Process for the catalytic decomposition of dinitrogen monoxide in a gas stream |
Dec. 24, 1996 |
| 5587136 |
Dry process desulfurization and denitrifcation process |
Dec. 24, 1996 |
| 5587137 |
Exhaust gas conversion method using thermally stable zeolites |
Dec. 24, 1996 |
| 5585081 |
SO.sub.x, NO.sub.x and particulate removal system |
Dec. 17, 1996 |
| 5585082 |
SOx/NOx sorbent and process of use |
Dec. 17, 1996 |
| 5582809 |
Catalyst and method for denitrization of nitrogen oxides |
Dec. 10, 1996 |
| 5575983 |
Catalyst for purifying exhaust gases and process for purifying exhaust gases |
Nov. 19, 1996 |
| 5565181 |
FCC NO.sub.x reduction using a perovskit-type additive |
Oct. 15, 1996 |
| 5562884 |
Reducing N.sub.2 O emissions when burning nitrogen-containing fuels in fluidized bed reactors |
Oct. 8, 1996 |
| 5562888 |
Nitrous oxide decomposition using a solid oxide solution |
Oct. 8, 1996 |
| 5560894 |
Process for treatment of exhaust gas |
Oct. 1, 1996 |
| 5554350 |
Air pollution control and heat recovery system and process for coal fired power plant |
Sep. 10, 1996 |
| 5552128 |
Selective catalytic reduction of nitrogen oxides |
Sep. 3, 1996 |
| 5550096 |
Catalyst for purifying nitrogen oxides from exhaust and waste gases |
Aug. 27, 1996 |
| 5547651 |
Process for production and use of deactivated gaseous atomic nitrogen for post combustion gas nitric oxide emissions control |
Aug. 20, 1996 |
| 5543123 |
Low pressure formation of a urea hydrolysate for nitrogen oxides reduction |
Aug. 6, 1996 |
| 5543124 |
Process for reducing nitrogen oxides |
Aug. 6, 1996 |
| 5540902 |
Process for cleaning a gas containing nitrogen monoxide and sulphur dioxide |
Jul. 30, 1996 |
| 5536482 |
Process for pollution control |
Jul. 16, 1996 |
| 5534237 |
Method of cleaning an exhaust gas and exhaust gas cleaner therefor |
Jul. 9, 1996 |
| 5527514 |
Desulfurizing and denitrating tower |
Jun. 18, 1996 |
| 5525317 |
Ammonia reagent application for NOX SOX and particulate emission control |
Jun. 11, 1996 |
| 5523068 |
Nitrogen oxide decomposition |
Jun. 4, 1996 |
| 5520895 |
Method for the reduction of nitrogen oxides using iron impregnated zeolites |
May. 28, 1996 |
| 5518702 |
No reduction using sublimination of cyanuric acid |
May. 21, 1996 |
| 5516741 |
Reduced chlorine containing platinum catalysts |
May. 14, 1996 |
| 5512259 |
Process for reducing emissions of organic halogen compounds from incineration systems |
Apr. 30, 1996 |
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