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Class Information
Number: 423/235
Name: Chemistry of inorganic compounds > Modifying or removing component of normally gaseous mixture > Nitrogen or nitrogenous component
Description: Processes in which the component is molecular nitrogen or a nitrogen-containing compound.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7618604 |
Method and apparatus for removing gaseous mercury in flue gas |
Nov. 17, 2009 |
| 7611623 |
Separation method using an ITQ-29 zeolite material |
Nov. 3, 2009 |
| 7591985 |
Method for purifying germanium hydrides |
Sep. 22, 2009 |
| 7588440 |
Carrier air heating system for SCR |
Sep. 15, 2009 |
| 7582271 |
Emission control system |
Sep. 1, 2009 |
| 7572637 |
Method for controlling exhaust emission control device |
Aug. 11, 2009 |
| 7569200 |
Method for reducing nitrogen oxide emissions |
Aug. 4, 2009 |
| 7566431 |
Method for the treatment of combustion flue gas |
Jul. 28, 2009 |
| 7553463 |
Technical and economic optimization of combustion, nitrogen oxides, sulfur dioxide, mercury, carbon dioxide, coal ash and slag and coal slurry use in coal fired furnaces/boilers |
Jun. 30, 2009 |
| 7550123 |
Method and apparatus for use of reacted hydrogen peroxide compounds in industrial process waters |
Jun. 23, 2009 |
| 7544328 |
Structure for reducing agent container |
Jun. 9, 2009 |
| 7537743 |
Method for in-furnace regulation of SO.sub.3 in catalytic NOx reducing systems |
May. 26, 2009 |
| 7521032 |
Method for removing mercury in exhaust gas |
Apr. 21, 2009 |
| 7521031 |
Method and apparatus for treating exhaust gas |
Apr. 21, 2009 |
| 7514053 |
Method for removing sulfur dioxide, mercury, and nitrogen oxides from a gas stream |
Apr. 7, 2009 |
| 7498009 |
Controlled spectrum ultraviolet radiation pollution control process |
Mar. 3, 2009 |
| 7494634 |
Reduction of nitrogen oxides using multiple split streams |
Feb. 24, 2009 |
| 7485276 |
Method for the removal of No.sub.x and N.sub.2O from the tail gas in nitric acid production |
Feb. 3, 2009 |
| 7481987 |
Method of removing sulfur trioxide from a flue gas stream |
Jan. 27, 2009 |
| 7481986 |
Method and system for injection of a solution into a gas stream |
Jan. 27, 2009 |
| 7476372 |
Flue gas scrubbing process utilizing biosolids |
Jan. 13, 2009 |
| 7470412 |
Reduction of CO and NOx in regenerator flue gas |
Dec. 30, 2008 |
| 7459134 |
Method of decarbonating a combustion fume with extraction of the solvent contained in the purified fume |
Dec. 2, 2008 |
| 7455819 |
Apparatus for simultaneous dry desulfurization/denitrification |
Nov. 25, 2008 |
| 7455820 |
Process for removing sulfur dioxide and nitrogen oxides from flue gas using chlorine dioxide |
Nov. 25, 2008 |
| 7452517 |
Integrated approach to reduction of mercury emissions |
Nov. 18, 2008 |
| 7449162 |
Device for treatment of exhaust of an internal combustion engine |
Nov. 11, 2008 |
| 7438878 |
Selective catalytic reduction of N.sub.2O |
Oct. 21, 2008 |
| 7435400 |
Optimizing post-combustion nitrogen oxide and sulfur dioxide reductions and improving combustion efficiency in coal fired boilers |
Oct. 14, 2008 |
| 7431906 |
Selective catalytic reduction |
Oct. 7, 2008 |
| 7416582 |
Method and apparatus for NO.sub.x and Hg removal |
Aug. 26, 2008 |
| 7416716 |
Purification of carbon dioxide |
Aug. 26, 2008 |
| 7404938 |
Emission control system |
Jul. 29, 2008 |
| 7404939 |
Mercury removal sorbent |
Jul. 29, 2008 |
| 7404940 |
Method for flue-gas reduction of pollutants in combustion processes |
Jul. 29, 2008 |
| 7384615 |
Method oil shale pollutant sorption/NO.sub.x reburning multi-pollutant control |
Jun. 10, 2008 |
| 7384616 |
Waste gas treatment process including removal of mercury |
Jun. 10, 2008 |
| 7374735 |
Method for nitrogen oxide reduction in flue gas |
May. 20, 2008 |
| 7374736 |
Method to reduce flue gas NOx |
May. 20, 2008 |
| 7361319 |
Mixed metal oxide sorbents |
Apr. 22, 2008 |
| 7335014 |
Combustion NOx reduction method |
Feb. 26, 2008 |
| 7332142 |
Method and apparatus for bubble injection of agent into exhaust gas for use with emission abatement device |
Feb. 19, 2008 |
| 7329397 |
Method of removing ammonia from fly ash and fly ash composition produced thereby |
Feb. 12, 2008 |
| 7306774 |
Reactive membrane process for the removal of vapor phase contaminants |
Dec. 11, 2007 |
| 7303735 |
Process for the removal of contaminants from gas streams |
Dec. 4, 2007 |
| 7282189 |
Production of hydrogen and removal and sequestration of carbon dioxide from coal-fired furnaces and boilers |
Oct. 16, 2007 |
| 7276366 |
Biological scrubber odor control system and method |
Oct. 2, 2007 |
| 7273595 |
Method and apparatus for the production of gaseous ammonia from a urea solution |
Sep. 25, 2007 |
| 7255842 |
Multi-component removal in flue gas by aqua ammonia |
Aug. 14, 2007 |
| 7247285 |
Reduction of sulfur, nitrogen oxides and volatile trace metals from combustion in furnaces and boilers |
Jul. 24, 2007 |
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