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Class Information
Number: 423/210
Name: Chemistry of inorganic compounds > Modifying or removing component of normally gaseous mixture
Description: Processes in which an initial gaseous or vaporous mixture is treated so as to remove therefrom or change to a different chemical form at least one of the components therein, resulting in a heterogeneous composition.










Sub-classes under this class:

Class Number Class Name Patents
423/220 Carbon dioxide or hydrogen sulfide component 578
423/246 Carbon monoxide component 159
423/210.5 Direct contact with molten material 71
423/240R Halogenous component 568
423/248 Hydrogen component 219
423/212 Mixture is exhaust from internal-combustion engine 266
423/219 Molecular oxygen or ozone component 338
423/235 Nitrogen or nitrogenous component 917
423/245.1 Organic component 442
423/215.5 Solid component 284
423/242.1 Sulfur or sulfur containing component 408


Patents under this class:

Patent Number Title Of Patent Date Issued
8703081 Sorbents for coal combustion Apr. 22, 2014
8703080 Method for removing mercury in exhaust gas and system therefor Apr. 22, 2014
8702845 System and method for low NOx emitting regeneration of desiccants Apr. 22, 2014
8685351 Pollutant emission control sorbents and methods of manufacture and use Apr. 1, 2014
8679435 Generation of sulfur trioxide and sulfuric acid Mar. 25, 2014
8679432 Adsorber having inner coating Mar. 25, 2014
8679431 Air pollution control system and method Mar. 25, 2014
8679430 Methods for removal of mercury from flue gas Mar. 25, 2014
8673257 Apparatus and method to sequester contaminants Mar. 18, 2014
8668889 Air pollution control system and method Mar. 11, 2014
8668888 Adsorbing agent containing titanium and iron compounds Mar. 11, 2014
8668887 In situ generation of polysulfide ions using elemental sulfur for improved corrosion control, cyanide management, mercury management, arsine management and performance and reliability of acid Mar. 11, 2014
8668868 Methods and apparatus for smart abatement using an improved fuel circuit Mar. 11, 2014
8663594 Exhaust gas treating method Mar. 4, 2014
8663586 High performance mercury capture Mar. 4, 2014
8663585 System, method, and composition for flue gas desulfurization (FGD) purge water disposal Mar. 4, 2014
8658115 Reducing mercury emissions from the burning of coal Feb. 25, 2014
8652428 System and method for removing a contaminant from a gas stream Feb. 18, 2014
8652235 Sorbents for the oxidation and removal of mercury Feb. 18, 2014
8636971 Crosslinked polymer-carbon sorbent for removal of heavy metals, toxic materials and carbon dioxide Jan. 28, 2014
8636969 EMM19star novel zeolitic imidazolate framework material, methods for making same, and uses thereof Jan. 28, 2014
8636968 Method for UV photolytic separation of pollutant gases from an emission stream Jan. 28, 2014
8632742 Methods of controlling mercury emission Jan. 21, 2014
8632741 Exhaust catalyst pre-heating system and method Jan. 21, 2014
8628741 Off gas treatment using a metal reactant alloy composition Jan. 14, 2014
8623304 Method and device for treating chlorine bypass dust and discharge gas Jan. 7, 2014
8623303 Process for the removal of hydrogen cyanide and formic acid from synthesis gas Jan. 7, 2014
8623302 Barium containing granules for sorption applications Jan. 7, 2014
8623287 Porous bodies and methods Jan. 7, 2014
8617494 Condenser and method for cleaning flue gases Dec. 31, 2013
8617493 Corrosion control in and selenium removal from flue gas wet scrubber systems Dec. 31, 2013
8613895 Process equipment contaminant removal Dec. 24, 2013
8613867 Inorganic dry compositions for absorption of mercury vapor Dec. 24, 2013
8609046 Gas stream treatment process Dec. 17, 2013
8609045 Mercury monitoring system and reaction chamber for enhancing conversion of elemental mercury gas into oxidized mercury Dec. 17, 2013
8603941 Method and apparatus for the purification of exhaust gas from a compression ignition engine Dec. 10, 2013
8603432 Transition metal/zeolite SCR catalysts Dec. 10, 2013
8603224 Method for the removal of mercury from a stream of flue gas obtained from the combustion of coal and sorbent-mixture Dec. 10, 2013
8597603 Decomposition/elimination method using a photocatalytic material Dec. 3, 2013
8597602 Vacuum truck scrubber system Dec. 3, 2013
8591844 Start up catalyst heating Nov. 26, 2013
8591843 Solvent for separating acid gas components from technical gases Nov. 26, 2013
8585994 Corrosion control in and selenium removal from flue gas wet scrubber systems Nov. 19, 2013
8580979 Method of preparing a humic acid extraction Nov. 12, 2013
8580214 Emission control system Nov. 12, 2013
8580208 Reactor and method for production of hydrogen sulphide Nov. 12, 2013
8574349 Method for the removal of mercury from a stream of flue gas obtained from the combustion of coal Nov. 5, 2013
8569199 Vanadium-free catalyst for selective catalytic reduction and process for it's preparation Oct. 29, 2013
8568678 Structured SCR catalyst for the reduction of nitrogen oxides in the exhaust gas from lean-burn engines using ammonia as reducing agent Oct. 29, 2013
8568673 Gas analysis device, mercury removal system, gas analysis method, and removal method for mercury in flue gas Oct. 29, 2013











 
 
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