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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 |
| 5233934 |
Control of NOx reduction in flue gas flows |
Aug. 10, 1993 |
| 5234670 |
Reduction of nitrogen oxide in effluent gases using NCO radicals |
Aug. 10, 1993 |
| 5234671 |
Reduction of nitrogen oxide in effluent gases using formaldehyde and/or formaldehyde-derived free radicals |
Aug. 10, 1993 |
| 5231063 |
Composite adsorbent and process for producing same |
Jul. 27, 1993 |
| 5227145 |
Process for removing nitrogen oxides from exhaust gases |
Jul. 13, 1993 |
| 5225390 |
Catalyst for reducing nitrogen oxides |
Jul. 6, 1993 |
| 5224334 |
Low NO.sub.x cogeneration process and system |
Jul. 6, 1993 |
| 5219543 |
Process and apparatus for removing dust, sulfur compounds and nitrogen oxides from combustion exhaust gases |
Jun. 15, 1993 |
| 5219544 |
Method of purifying the exhaust gases from plants for the production of cement clinker |
Jun. 15, 1993 |
| 5213779 |
Process for optimizing the removal of NO.sub.X and SO.sub.X from gases utilizing lanthanide compounds |
May. 25, 1993 |
| 5213780 |
Method for nitrogen oxide reduction and flue gas reheating |
May. 25, 1993 |
| 5213781 |
Method of cleaning nitrogen oxide containing exhaust gas |
May. 25, 1993 |
| 5200160 |
Process for removing sulfur dioxide and nitrogen oxides from flue gases |
Apr. 6, 1993 |
| 5200162 |
Process for N.sub.2 O decomposition |
Apr. 6, 1993 |
| 5198128 |
Waste disposal site, in particular for the ultimate disposal of radioactive substances |
Mar. 30, 1993 |
| 5198403 |
Process for producing a catalyst for selective reduction of nitrous oxides with ammonia |
Mar. 30, 1993 |
| 5194233 |
Process for purification of rare gas |
Mar. 16, 1993 |
| 5192515 |
Reduction of nitrogen oxide and carbon monoxide in effluent gases |
Mar. 9, 1993 |
| 5186914 |
Process for removing NO.sub.x and SO.sub.2 utilizing activated carbon |
Feb. 16, 1993 |
| 5186917 |
Process for the removal of NO.sub.x SO.sub.x utilizing a particulate agent |
Feb. 16, 1993 |
| 5183647 |
Method for purifying nitrogen trifluoride gas |
Feb. 2, 1993 |
| 5182089 |
Chemisorptive metal alloy and method of using the same |
Jan. 26, 1993 |
| 5180565 |
No reduction using sublimation of cyanuric acid |
Jan. 19, 1993 |
| 5180567 |
Exhaust gas treating method |
Jan. 19, 1993 |
| 5179058 |
Process for manufacturing a carbonaceous catalyst for the reduction of nitrogen oxides in exhaust gases |
Jan. 12, 1993 |
| 5176887 |
Treating emissions from engines fueled by compressed natural gas |
Jan. 5, 1993 |
| 5176888 |
Acid rain abatement |
Jan. 5, 1993 |
| 5173466 |
Catalyst for the reduction of nitrogen oxides from waste gases and a process for its production |
Dec. 22, 1992 |
| 5171552 |
Dry processes for treating combustion exhaust gas |
Dec. 15, 1992 |
| 5171554 |
Conversion of formaldehyde and nitrogen to a gaseous product and use of gaseous product in reduction of nitrogen oxide in effluent gases |
Dec. 15, 1992 |
| 5171558 |
Catalytic decomposition of cyanuric acid and use of product to reduce nitrogen oxide emissions |
Dec. 15, 1992 |
| 5169611 |
Method of purifying the exhaust gases from plants for the production of cement clinker |
Dec. 8, 1992 |
| 5165902 |
Method and apparatus for reducing nitrogen dioxide emissions in a dry sodium scrubbing process using humidification |
Nov. 24, 1992 |
| 5165903 |
Integrated process and apparatus for control of pollutants in coal-fired boilers |
Nov. 24, 1992 |
| 5164167 |
Process for the removal of acid forming gases from exhaust gases |
Nov. 17, 1992 |
| 5160380 |
Process for improved preparation of treatment gas in heat treatments |
Nov. 3, 1992 |
| 5160713 |
Process for separating oxygen from an oxygen-containing gas by using a bi-containing mixed metal oxide membrane |
Nov. 3, 1992 |
| 5158582 |
Method of removing NOx by adsorption, NOx adsorbent and apparatus for purifying NOx-containing gas |
Oct. 27, 1992 |
| 5154901 |
Method of cleaning an exhaust gas containing nitrogen oxides and fine carbon-containing particulates |
Oct. 13, 1992 |
| 5155083 |
Catalyst for reducing nitrogen oxides and process for making the catalyst |
Oct. 13, 1992 |
| 5151256 |
Coal combustion apparatus provided with a denitration |
Sep. 29, 1992 |
| 5145652 |
Apparatus for the removal of nitrogen burner exhaust |
Sep. 8, 1992 |
| 5141726 |
Process for reducng No.sub.x emissions from combustion devices |
Aug. 25, 1992 |
| 5139754 |
Catalytic/non-catalytic combination process for nitrogen oxides reduction |
Aug. 18, 1992 |
| 5139755 |
Advanced reburning for reduction of NO.sub.x emissions in combustion systems |
Aug. 18, 1992 |
| 5139757 |
Process for the removal of nitrogen oxides from flue gases |
Aug. 18, 1992 |
| 5137703 |
Thermal catalytic methods for converting oxides of nitrogen into environmentally compatible products |
Aug. 11, 1992 |
| 5133950 |
Reducing N.sub.2 O emissions when burning nitrogen-containing fuels in fluidized bed reactors |
Jul. 28, 1992 |
| 5132103 |
Process for the removal of nitrogen oxides from offgases from turbines |
Jul. 21, 1992 |
| 5130109 |
Catalyst composition containing segregated platinum and rhodium components |
Jul. 14, 1992 |
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