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Class Information
Number: 423/238
Name: Chemistry of inorganic compounds > Modifying or removing component of normally gaseous mixture > Nitrogen or nitrogenous component > Ammonia > Utilizing liquid as reactant
Description: Processes in which the ammonia is removed or changed by means of a reactant in the liquid state.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8591848 Selective catalytic NO.sub.x reduction process and control system Nov. 26, 2013
8470274 Method for feeding reducing agent into an exhaust gas system and corresponding exhaust gas system and motor vehicle Jun. 25, 2013
8466315 Urea granulation process with an acidic scrubbing system and the subsequent integration of ammonium salt into urea granules Jun. 18, 2013
8454916 Selective catalytic reduction (SCR) catalyst depletion control systems and methods Jun. 4, 2013
8367025 Carbon dioxide sequestration materials and processes Feb. 5, 2013
8303849 HCN removal from syngas using chemical and biological treatment Nov. 6, 2012
8293201 Method for the recovery of ammonia from a gaseous stream in a synthesis process of urea Oct. 23, 2012
8206470 Combustion emission-reducing method Jun. 26, 2012
8155509 Method and device for providing a gaseous substance mixture Apr. 10, 2012
8105558 Carbon dioxide sequestration materials and processes Jan. 31, 2012
8092771 Nitrogen-containing carbon material and process for producing the same Jan. 10, 2012
8029753 Ammonia contact scrubber system for a fuel cell Oct. 4, 2011
7927513 Method of treating a hot syngas stream for conversion to chemical products by removing ammonia and COS Apr. 19, 2011
7910078 Method of capturing carbon dioxide from gas streams Mar. 22, 2011
7906086 Carbon dioxide sequestration materials and processes Mar. 15, 2011
7875089 Ammonia-based hydrogen generation apparatus and method for using same Jan. 25, 2011
7867300 Ammonia-based hydrogen generation apparatus and method for using same Jan. 11, 2011
7867462 Coal combustion systems with emissions control and fly ash beneficiation and methods thereof Jan. 11, 2011
7846240 Chilled ammonia based CO.sub.2 capture system with water wash system Dec. 7, 2010
7815879 Method and apparatus for use of reacted hydrogen peroxide compounds in industrial process waters Oct. 19, 2010
7803337 Method for treating a fluid to be scrubbed Sep. 28, 2010
7780934 Method and system for reducing ammonia slip after selective reduction of NOx Aug. 24, 2010
7740816 Method for treating gases to be scrubbed Jun. 22, 2010
7682425 Method for removing ammonia and dust from a waste gas that results during the production of fertilizers Mar. 23, 2010
7655200 Method for purifying exhaust of waste gas using atomized fluid droplets combined with turbulent flow Feb. 2, 2010
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
7537744 Process for ammonia recovery May. 26, 2009
7390470 Process for treating a gas stream 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
7326391 Process for recovery and recycle of ammonia from a vapor stream Feb. 5, 2008
7294325 Method for the production of hydrocyanic acid by oxidation of nitrogen-containing hydrocarbons in a flame Nov. 13, 2007
7258848 Process for scrubbing ammonia from acid gases comprising ammonia and hydrogen sulfide Aug. 21, 2007
7252703 Direct contact liquid air contaminant control system Aug. 7, 2007
7204967 Waste water process with scrubber Apr. 17, 2007
6941742 Method and device for reducing the number of particles in an exhaust gas Sep. 13, 2005
6872296 Method for removing ammonia from a gas comprising hydrogen cyanide, ammonia and water Mar. 29, 2005
6838069 Apparatus and method for ammonia removal from waste streams Jan. 4, 2005
6790264 Control of ammonia emission from ammonia laden fly ash in concrete Sep. 14, 2004
6746654 Dry and semi-dry methods for removal of ammonia from fly ash Jun. 8, 2004
6713031 Structured catalysts for selective reduction of nitrogen oxides by ammonia using a compound that can be hydrolyzed to ammonia Mar. 30, 2004
6553755 Expanded grid static mixer Apr. 29, 2003
6534030 Process for producing ammonium thiosulfate Mar. 18, 2003
6503471 Process for malodorous gas treatment Jan. 7, 2003
6468486 Process for treating exhaust gases containing nitrides Oct. 22, 2002
6290066 Method for removal of ammonia from fly ash Sep. 18, 2001
6277344 Simultaneous use of peroxygen and olefin compound in odor reduction Aug. 21, 2001
6190629 Organic acid scrubber and methods Feb. 20, 2001
6183720 Process and apparatus for producing high-purity chemicals for the microelectronics industry Feb. 6, 2001

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