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9011808 Method for removing impurities from gas flows comprising oxygen  
A process for removing impurities, in particular oxides of sulphur (SOx) and/or oxides of nitrogen (NOx) from oxygen-containing gas streams by scrubbing with at least one washing agent is...
8992870 Catalyst for decomposing nitrous oxide and method for performing processes comprising formation of nitrous oxide  
The present invention relates to a catalyst comprising 0.1-10 mol % Co3-xMxO4, where M is Fe or Al and x=0-2, on a cerium oxide support for decomposition of N2O in gases containing NO. The...
8986639 Denox treatment for a regenerative pyrolysis reactor  
A process of introducing a NOx reduction fluid into combustion products within a downstream end of a regenerative pyrolysis reactor. This NOx reduction fluid may thermally reduce NOx contained...
8980210 Capture and release of acid-gasses with acid-gas binding organic compounds  
A system and method for acid-gas capture wherein organic acid-gas capture materials form hetero-atom analogs of alkyl-carbonate when contacted with an acid gas. These organic-acid gas capture...
8980206 Method and multi-component nozzle for reducing unwanted substances in a flue gas  
A method is illustrated and described for reducing unwanted substances by injecting a reactant into a flue gas of a steam generator. In order that the reactant can also be used in larger steam...
8974738 System and method for exhaust gas after treatment  
A hydrocarbon selective catalytic reduction (HC-SCR) catalyst is regenerated using a nitrogen-based reductant agent. The HC-SCR catalyst is in communication with a power system such as an internal...
8945495 Method and architecture for reducing NOX and particulate matter emissions in exhaust gas from hydrocarbon fuel source with a fuel lean combustion mixture  
An exemplary method and associated architecture for reducing NOx and particulate matter emissions in an exhaust stream may include passing the exhaust stream through a catalytic oxidation reactor;...
8940258 Regenerative recovery of contaminants from effluent gases  
This invention relates to processes for the selective removal of contaminants from effluent gases. More particularly, various embodiments of the present invention relate to selective removal and...
8932547 Modular plant for removal of pollutants from flue gases produced by industrial processes  
The invention relates to a so-called zero emission ‘AST-CNR/ITM system’ modular plant for removal of pollutants from flue gases produced by industrial processes. The plant comprises prefabricated...
8911699 Charge-induced selective reduction of nitrogen  
A selective catalytic reduction system (SCR) or selective non-catalytic reduction (SNCR) system include a reagent charging apparatus configured to apply one or more electrical charges to a NOx...
8894764 Apparatus and method for the selective non-catalytic reduction (SNCR) of NOx in industrial cement production plants  
The present invention relates to an apparatus and a method for the selective non-catalytic reduction (SNCR) of NOx in industrial cement production plants. In particular, the method according to...
8889089 Process for a reduction in the amount of sulphur compounds, hydrogen cyanide, and formic acid in synthesis gas  
A process for a reduction in the amount of sulphur compounds, hydrogen cyanide, formic acid and formic acid derivatives in synthesis gas comprising these compounds, the process comprising...
8883105 Removal of atmospheric pollutants from gas, related apparatus, processes and uses thereof  
Methods related generally to the removal of atmospheric pollutants from the gas phase, are provided, as well as related apparatus, processes and uses thereof. A single-stage air scrubbing...
8877149 Combustion flue gas NOx treatment  
Combustion flue gas containing NOX and SOX is treated to remove NOX in a multistep system in which NOX is reduced in the flue gas stream via selective catalytic reduction or selective...
8871166 Method for removing contaminants from exhaust gases  
A method for removing contaminants from the effluent from metal pickling operations by oxidizing the contaminants in the effluent, passing the oxidized effluent to a first scrubber thereby...
8865098 Method for removing contaminants from exhaust gases  
In a method for removing a portion of contaminants, such as nitrogen oxides, from an exhaust gas stream of a combustion process, the exhaust gas stream is separated into two or more gas streams....
8865097 Flur-gas purification and reclamation system and method thereof  
A flue-gas purification system includes a flue-gas cycling system, a reactor, and an absorbent adding system having at least a catalytic absorbent, wherein the catalytic absorbent is being...
8852542 Selective catalytic NOx reduction process and apparatus providing improved gassification of urea to form ammonia-containing gas  
Disclosed are methods and apparatus enabling the efficient utilization of urea for purposes such as selective catalytic reduction (SCR) of NOx, which enable feeding urea to a chamber designed to...
8845986 Process to reduce emissions of nitrogen oxides and mercury from coal-fired boilers  
A flue gas additive is provided that includes both a nitrogenous component to reduce gas phase nitrogen oxides and a halogen-containing component to oxidize gas phase elemental mercury.
8821821 Method for the purification of fluorine  
Elemental fluorine is often manufactured electrochemically from a solution of KF in hydrogen fluoride and contains varying amounts of entrained electrolyte salt in solid form as impurity. The...
8815193 Selective non-catalytic reduction for NOx removal  
A selective non-catalytic reduction apparatus for exhaust gases comprising a reactor for elevated temperature reduction of NOx comprising an injection zone, internal structure zone and rear zone....
8808655 Bifunctional active sites for adsorption of NOx  
Immobilized nitronyl nitroxide active sites on the surface of a porous inorganic oxide support act as efficient and rapid oxidants for NO, reacting with >99% of the NO under flow conditions...
8802043 Method for controlling acidic compounds produced for oxy-combustion processes  
The present invention relates generally to the field of emissions control and, in particular to a new and useful method and/or system by which to control, treat and/or mitigate various...
8795620 Systems and methods for recovering nitric acid from pickling solutions  
An embodiment of a method for recovering nitric acid from acid pickling solution includes introducing a treating material comprising at least one chemical into a pickling solution comprising free...
8784762 Treatment of NOx-containing gas streams  
Methods and systems for treating a gas stream comprising NOx are disclosed. In one embodiment of the method, the gas stream comprising NOx is reacted with ozone to form oxidation products...
8771626 Process for purifying perfluorinated products  
This invention relates to a process for purifying at least one of perfluoromethane and nitrogen trifluoride from a mixture thereof using an ionic liquid. The process may be performed by a...
8771625 Method for reducing nitric oxide in the exhaust gas flow of internal combustion engines  
A method is described for reducing nitrogen oxides in the exhaust gas flow of combustion engines, especially a motor vehicle internal combustion engine, wherein an air/fuel mixture in the...
8774342 Boiling water nuclear plant and steam dryer  
In the boiling water nuclear plant of the present invention, a steam dryer is disposed in a reactor pressure vessel. Materials that have capability of capturing nitrogen compounds containing N-16...
8765089 Process and apparatus for reducing nitrogen oxides and halogenated organic compounds in incineration plants  
A process for reducing nitrogen oxides and halogenated organic compounds in an incineration plant having at least one combustion chamber. The process comprises separating out fly ash using a dust...
8748187 Control system for NOx removal device, NOx removal device provided with the same, boiler plant provided with the same, and method of controlling NOx removal device  
A control system of a NOx removal device is provided with reagent introducing means for introducing a reagent into a fluid, a temperature measuring device that measures a temperature distribution...
8741222 Conversion of nitrogen dioxide (NO2) to nitric oxide (NO)  
Various systems, devices, NO2 absorbents, NO2 scavengers and NO2 recuperator for generating nitric oxide are disclosed herein. According to one embodiment, an apparatus for converting nitrogen...
8741239 Method and apparatus for operation of CO/VOC oxidation catalyst to reduce NO2 formation for gas turbine  
A power generating apparatus including a gas turbine engine combusting a fuel in air to produce shaft power and producing a flow of exhaust gases including oxides of nitrogen (NOx), carbon...
8734741 Methods for removing contaminants from exhaust gases  
A method for removing contaminants from a gas stream by feeding the gas stream into a scrubber that can use seawater as the scrubbing medium. The gas stream is first scrubbed with the seawater and...
8703083 Bifunctional active sites for adsorption of NOx  
Immobilized nitronyl nitroxide active sites on the surface of a porous inorganic oxide support act as efficient and rapid oxidants for NO, reacting with >99% of the NO under flow conditions...
8702845 System and method for low NOx emitting regeneration of desiccants  
The invention pertains to a system for purification of a carbon dioxide rich flue gas generated in a boiler combusting a fuel in the presence of a gas containing oxygen, and being contaminated by...
8697018 Reduction of oxides of nitrogen in a gas stream using molecular sieve SSZ-25  
The invention relates generally to molecular sieve SSZ-25 and its use in the reduction of oxides of nitrogen in a gas stream such as the exhaust from an internal combustion engine.
8668892 Method and system for NOx removal from a flue gas  
A system for reducing NOx in a flue gas stream, including an absorption element, a first inlet in fluid communication with the chamber configured to deliver a pressurized flue gas to the chamber,...
8652236 Method for recovery of high purity carbon dioxide  
The present invention describes a method for recovery of high purity carbon dioxide, which is substantially free of nitrogen oxides. This high purity carbon dioxide is obtained by introducing into...
8628741 Off gas treatment using a metal reactant alloy composition  
This invention relates to a method and apparatus for treating a flue gas stream containing oxygen containing greenhouse gases. In particular, the method comprises reacting a flue gas steam with a...
8609026 Conversion of nitrogen dioxide (NO2) to nitric oxide (NO)  
Various systems, devices, NO2 absorbents, NO2 scavengers and NO2 recuperator for generating nitric oxide are disclosed herein. According to one embodiment, an apparatus for converting nitrogen...
8603432 Transition metal/zeolite SCR catalysts  
A method of converting nitrogen oxides in a gas to nitrogen by contacting the nitrogen oxides with a nitrogenous reducing agent in the presence of a zeolite catalyst containing at least one...
8603941 Method and apparatus for the purification of exhaust gas from a compression ignition engine  
A method and apparatus for the removal of NO2 emission from a lean burn compression ignition engine, wherein NO2 containing engine exhaust gas is brought in contact with a catalyst being active in...
8603422 Gas separation and recovery apparatus and gas separation and recovery method  
A gas separation and recovery apparatus that separates and recovers nitrogen oxides from a gas mixture includes: a liquid storing portion that stores a liquid, the liquid absorbing the nitrogen...
8597603 Decomposition/elimination method using a photocatalytic material  
The present invention provides a new method for decomposing and/or removing hazardous substances using a photocatalytic material. The method of the present invention is sufficiently useful in...
8591767 Functional fluid and a process for the preparation of the functional fluid  
A functional fluid for the removal of contaminates such as but not limited to, acid causing components in gas, sulfur components and carbon oxides from fluid streams, and removal and treatment of...
8591843 Solvent for separating acid gas components from technical gases  
The invention relates to the use of a liquid, containing 0.1 to 100% of an amine or several amines of formula H2N—CH2(CHR2)x—(OCH2(CHR3)y)z—OR1, where R1=C1 to C6 alkyl, R2=H or CH3, R3=H or CH3,...
8591848 Selective catalytic NOx reduction process and control system  
Disclosed is a system which enables the efficient utilization of urea for selective catalytic reduction (SCR) of NOx by gasifying it and feeding it to a plurality of selective catalytic reduction...
8569199 Vanadium-free catalyst for selective catalytic reduction and process for it's preparation  
Selective catalytic reduction with ammonia or a compound that decomposes to ammonia is a known method for the removal of nitrogen oxides from the exhaust gas of primarily lean-burn internal...
8562929 Selective catalytic reduction via electrolysis of urea  
A method for producing ammonia suitable for use as a reductant in a combustion exhaust gas treatment system is provided that includes the electrolytic hydrolysis of urea under mild conditions. The...
8551430 Method for the selective catalytic reduction of nitrogen oxides in exhaust gas from an internal combustion engine, and exhaust system  
A method for the selective catalytic reduction of nitrogen oxides (NOx) in the exhaust gas from an internal combustion engine includes providing an exhaust system having: an SCR catalytic...