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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 |
| 4780290 |
Method for purifying flue gas |
Oct. 25, 1988 |
| 4778664 |
Process for the removal of NO from fluid streams using a water soluble polymeric chelate of a polyvalent metal |
Oct. 18, 1988 |
| 4772455 |
Filter |
Sep. 20, 1988 |
| 4767605 |
Method for separation of acid pollution gas |
Aug. 30, 1988 |
| 4758418 |
Process for combusting solid sulfur-containing material |
Jul. 19, 1988 |
| 4758545 |
Process for the manufacture of catalyst moldings from granular catalyst material such as iron ore or chromium ore with the use of a binder |
Jul. 19, 1988 |
| 4756890 |
Reduction of NO.sub.x in flue gas |
Jul. 12, 1988 |
| 4756891 |
Method for pre-heating combustion air and for catalytically reducing noxious substances in flue gas |
Jul. 12, 1988 |
| 4755282 |
Process for the reduction of NH.sub.3 in regeneration zone off gas by select recycle of certain-sized NH.sub.3 decomposition catalysts |
Jul. 5, 1988 |
| 4751212 |
Process for the manufacture of a catalyst for the reduction of nitrogen oxides in exhaust gases |
Jun. 14, 1988 |
| 4748012 |
Process for the reduction of nitrogen oxides |
May. 31, 1988 |
| 4744967 |
Process for the purification of exhaust gases containing oxides of nitrogen and sulfur |
May. 17, 1988 |
| 4741889 |
Process for adsorptive removal of substances from flue gases |
May. 3, 1988 |
| 4742036 |
Catalyst plate |
May. 3, 1988 |
| 4742037 |
Catalyst for reductive conversion of nitrogen oxides in waste gases |
May. 3, 1988 |
| 4735785 |
Method of removing oxides of nitrogen from flue gas |
Apr. 5, 1988 |
| 4735930 |
Catalyst for the reduction of oxides of nitrogen |
Apr. 5, 1988 |
| 4732743 |
Process for catalytic treatment of exhaust gases |
Mar. 22, 1988 |
| 4731231 |
NO reduction using sublimation of cyanuric acid |
Mar. 15, 1988 |
| 4731233 |
Method and composition for utilizing lime-urea hydrates to simultaneously reduce NO.sub.x and SO.sub.x in combustion effluents |
Mar. 15, 1988 |
| 4729975 |
Method for regenerating a denitration catalyst for exhaust gases from coal-burning apparatus |
Mar. 8, 1988 |
| 4725416 |
Removal of nitrogen oxides from flue gas |
Feb. 16, 1988 |
| 4721699 |
Catalyst for the separation of nitrogen oxides from combustion exhaust gases |
Jan. 26, 1988 |
| 4720376 |
Process for the removal of nitrogen oxides and soot from exhaust gases of machines and combustion installations burning heavy fuel oil |
Jan. 19, 1988 |
| 4720476 |
Catalyst for decreasing the content of nitrogen oxides in flue gases |
Jan. 19, 1988 |
| 4719094 |
Process for the selective catalytic removal of nitrogen oxides from the waste gases of furnaces |
Jan. 12, 1988 |
| 4710363 |
Process of removing SO.sub.x and NO.sub.x from waste gases |
Dec. 1, 1987 |
| 4708854 |
Process for the removal of NO from fluid streams using a water-soluble polymeric chelate of a polyvalent metal |
Nov. 24, 1987 |
| 4707467 |
Gas filter |
Nov. 17, 1987 |
| 4695437 |
Selective catalytic reduction catalysts |
Sep. 22, 1987 |
| 4695438 |
Selective catalytic reduction catalysts |
Sep. 22, 1987 |
| 4695559 |
Catalyst for the selective reduction of nitrogen oxides in waste gases and process for the manufacture of such a catalyst |
Sep. 22, 1987 |
| 4693213 |
Waste heat recovery boiler |
Sep. 15, 1987 |
| 4693874 |
Method for reducing gas turbine NO.sub.x emissions |
Sep. 15, 1987 |
| 4692318 |
Process for simultaneously removing nitrogen oxides, sulfur oxides, and particulates |
Sep. 8, 1987 |
| 4692425 |
Catalyst for reducing the nitrogen oxide content of flue gases |
Sep. 8, 1987 |
| 4684510 |
Method and apparatus for prevention of atmospheric corrosion of electronic equipment |
Aug. 4, 1987 |
| 4681746 |
Method of regulating the amount of reducing agent added during catalytic reduction of NO.sub.x contained in flue gases |
Jul. 21, 1987 |
| 4672052 |
Catalyst for removal of nitrogen oxides from exhaust gases |
Jun. 9, 1987 |
| 4668489 |
Method for treating gas streams |
May. 26, 1987 |
| 4666882 |
Method of preparation of catalyst and catalyst prepared by the method for converting nitrogen oxides in exhaust gases |
May. 19, 1987 |
| 4663136 |
Emission control process for combustion flue gases |
May. 5, 1987 |
| 4656014 |
Process for reducing the NO.sub.x content in waste gases |
Apr. 7, 1987 |
| 4656147 |
Method for recovering denitrating catalyst for ammonia catalytic reduction |
Apr. 7, 1987 |
| 4656148 |
Method for the reactivation of a catalyst used for removal of nitrogen oxides |
Apr. 7, 1987 |
| 4645652 |
Method for scrubbing sulfur oxides and nitrogen oxides in a flue gas duct |
Feb. 24, 1987 |
| 4645653 |
Method for dry flue gas desulfurization incorporating nitrogen oxides removal |
Feb. 24, 1987 |
| 4636370 |
Non-catalytic method for reducing the concentration of NO in combustion effluents by injection of ammonia at temperatures from about 975 degrees K. to 1300 degrees K. |
Jan. 13, 1987 |
| 4629609 |
Process of removing SO.sub.x and NO.sub.x from waste gases |
Dec. 16, 1986 |
| 4626417 |
Methods for chemically reducing nitrogen oxides |
Dec. 2, 1986 |
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