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Class Information
Number: 423/237
Name: Chemistry of inorganic compounds > Modifying or removing component of normally gaseous mixture > Nitrogen or nitrogenous component > Ammonia
Description: Processes in which the component is ammonia (NH3
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7613561 |
Measurement of NO and NO.sub.2 for control of selective catalytic reduction |
Nov. 3, 2009 |
| 7591987 |
Method and apparatus for treating ammonia-containing gas |
Sep. 22, 2009 |
| 7575732 |
Process for treating a gas stream |
Aug. 18, 2009 |
| 7550123 |
Method and apparatus for use of reacted hydrogen peroxide compounds in industrial process waters |
Jun. 23, 2009 |
| 7521483 |
Coproduction of methanol and ammonia from natural gas |
Apr. 21, 2009 |
| 7498009 |
Controlled spectrum ultraviolet radiation pollution control process |
Mar. 3, 2009 |
| 7494633 |
Gas abatement |
Feb. 24, 2009 |
| 7494634 |
Reduction of nitrogen oxides using multiple split streams |
Feb. 24, 2009 |
| 7485275 |
Method for removing acid gases and ammonia from a fluid stream |
Feb. 3, 2009 |
| 7470412 |
Reduction of CO and NOx in regenerator flue gas |
Dec. 30, 2008 |
| 7462235 |
System and method for decomposing ammonia from fly ash |
Dec. 9, 2008 |
| 7442353 |
Heat recirculating cooler for fluid stream pollutant removal |
Oct. 28, 2008 |
| 7438876 |
Multi-stage heat absorbing reactor and process for SCR of NOx and for oxidation of elemental mercury |
Oct. 21, 2008 |
| 7393511 |
Ammonia oxidation catalyst for the coal fired utilities |
Jul. 1, 2008 |
| 7390470 |
Process for treating a gas stream |
Jun. 24, 2008 |
| 7390471 |
Apparatus and method for catalytic treatment of exhaust gases |
Jun. 24, 2008 |
| 7381389 |
Wet gas purification method and system for practicing the same |
Jun. 3, 2008 |
| 7341701 |
Method, apparatus and plant for treating culinary gaseous effluents |
Mar. 11, 2008 |
| 7329397 |
Method of removing ammonia from fly ash and fly ash composition produced thereby |
Feb. 12, 2008 |
| 7326391 |
Process for recovery and recycle of ammonia from a vapor stream |
Feb. 5, 2008 |
| 7276366 |
Biological scrubber odor control system and method |
Oct. 2, 2007 |
| 7258848 |
Process for scrubbing ammonia from acid gases comprising ammonia and hydrogen sulfide |
Aug. 21, 2007 |
| 7250149 |
Sulfur gas treatment process |
Jul. 31, 2007 |
| 7244405 |
Method for cleaning coke oven gas |
Jul. 17, 2007 |
| 7204967 |
Waste water process with scrubber |
Apr. 17, 2007 |
| 7182927 |
Hydrothermally stable metal promoted zeolite beta for NO.sub.x reduction |
Feb. 27, 2007 |
| 7160527 |
Method for treating amonia-containing effluent water |
Jan. 9, 2007 |
| 7153427 |
Nitrogen recovery system and method using heated air as stripping gas |
Dec. 26, 2006 |
| 7067101 |
Water wall boiler for air and oxygen fired Claus sulfur recovery units |
Jun. 27, 2006 |
| RE39041 |
Ammonia decomposition catalysts |
Mar. 28, 2006 |
| 7001490 |
Purification of ammonia by distillation |
Feb. 21, 2006 |
| 6998098 |
Removal of gases from a feed |
Feb. 14, 2006 |
| 6919059 |
Process and apparatus for recovering sulphur from a gas stream containing sulphide |
Jul. 19, 2005 |
| 6902713 |
Method for partially oxidizing a gas stream comprising hydrogen sulphide and ammonia |
Jun. 7, 2005 |
| 6893620 |
Process and apparatus for recovering sulphur from a gas stream containing hydrogen sulphide |
May. 17, 2005 |
| 6890498 |
Burner and method for partly oxidising a gas stream comprising hydrogen sulphide and ammonia |
May. 10, 2005 |
| 6866779 |
Nitrogen recovery system and method |
Mar. 15, 2005 |
| 6843971 |
Process and catalyst for reducing nitrogen oxides |
Jan. 18, 2005 |
| 6837917 |
Process for the removal of ethylene oxide from air |
Jan. 4, 2005 |
| 6790264 |
Control of ammonia emission from ammonia laden fly ash in concrete |
Sep. 14, 2004 |
| 6755901 |
Ammonia removal from fly ash |
Jun. 29, 2004 |
| 6749819 |
Process for purifying ammonia |
Jun. 15, 2004 |
| 6746654 |
Dry and semi-dry methods for removal of ammonia from fly ash |
Jun. 8, 2004 |
| 6725647 |
Exhaust gas treatment units for internal combustion engines and processes for operating them |
Apr. 27, 2004 |
| 6716405 |
Process for removing unreacted ammonia from an effluent in a hydrocarbon ammoxidation reaction |
Apr. 6, 2004 |
| 6713031 |
Structured catalysts for selective reduction of nitrogen oxides by ammonia using a compound that can be hydrolyzed to ammonia |
Mar. 30, 2004 |
| 6706093 |
Method and apparatus for preventing iron contamination in corrosive service |
Mar. 16, 2004 |
| 6682709 |
Method for reducing NOx from exhaust gases produced by industrial processes |
Jan. 27, 2004 |
| 6645447 |
Devices and method for chemical reactive filtration |
Nov. 11, 2003 |
| 6623715 |
Complex shaped fiber for particle and molecular filtration |
Sep. 23, 2003 |
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