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9034289 Method and apparatus for prolonging the service life of a collective protection filter using a guard bed  
A method for extending the service life of a Collective Protection (CP) filter includes: providing at least one CP filter comprising a filter bed; and passing an airstream through a guard bed...
9017626 Selective catalytic reduction catalyst system  
Described are SCR catalyst systems comprising a first SCR catalyst composition and a second SCR catalyst composition arranged in the system, the first SCR catalyst composition promoting higher N2...
9011809 Ammonia oxidation catalyst, exhaust gas purification device using same, and exhaust gas purification method  
An ammonia oxidation catalyst being superior in heat resistance and capable of suppressing by-production of N2O or NOx. The ammonia oxidation catalyst is made by coating at least two catalyst...
9011806 Method for treating a gas containing nitrogen oxides (NOx) using a composition comprising zirconium, cerium and niobium as a catalyst  
The invention relates to a method for treating a gas containing nitrogen oxides (NOx), in which an NOx-reduction reaction is carried out using a nitrogen-containing reducing agent, which invention...
8999278 Method and apparatus for on-site production of lime and sorbents for use in removal of gaseous pollutants  
The invention provides various methods for removing gas phase pollutants by calcining limestone or dolomite using flash calcination to produce a high surface area lime or hydrated lime and...
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...
8992842 Systems and methods of making ammonia using hydrogen and nitrogen gases  
A system for producing ammonia includes sources of hydrogen and nitrogen gas, a hydrogen gas booster for producing produce pressurized hydrogen gas, a nitrogen gas booster for producing...
8984863 Ammonia injection device  
Provided is an ammonia injection device (10) installed at an exhaust gas duct through which an exhaust gas generated in a gas turbine flows, and configured to inject ammonia into the exhaust gas...
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...
8980212 Flue gas stream bypass during selective catalytic reduction in a power plant  
A system includes a selective catalytic reactor and a bypass line. The selective catalytic reactor is located downstream of a furnace that generates flue gases. The selective catalytic reactor...
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...
8974577 Sorbent compositions, sorbent articles, methods for preparing sorbent articles, and methods for capturing target gases using the sorbent articles  
Articles for capturing or separating a target gas from a gas stream may include a porous substrate such as a flexible sheet or mat, or a rigid ceramic monolith impregnated or coated with a sorbent...
8974756 Process to enhance mixing of dry sorbents and flue gas for air pollution control  
The disclosure provides an improved means of controlling mercury emissions from coal-fired boiler applications. Specifically, the disclosure comprises a static mixing device placed in the flue gas...
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...
8969238 Nanoparticular metal oxide/anatase catalysts  
The present invention concerns a method of preparation of nanoparticular metal oxide catalysts having a narrow particle size distribution. In particular, the invention concerns preparation of...
8961913 Apparatus and system for NOx reduction in wet flue gas  
The present invention relates to a method and a system for cleaning a CO2 rich flue gas stream containing water vapor and NOX prior to CO2 sequestration. The method and system include heating the...
8951931 Noble metal fine particle supported catalyst and method for producing the catalyst, and purifying catalyst  
The noble metal fine particle supported catalyst of the present invention includes a substrate, and a porous membrane formed on the substrate. The porous membrane contains support particles, noble...
8951488 Method and system for NOx reduction in flue gas  
The present invention relates to a method of cleaning a carbon dioxide rich flue gas stream containing oxygen. The method includes heating the flue gas stream to a temperature suitable for...
8945517 Continuous silica production process and silica product prepared from same  
Disclosed herein is a continuous process for preparing a silica product, comprising: (a) continuously feeding an acidulating agent and an alkali metal silicate into a loop reaction zone comprising...
8939761 Process and device for the purification of waste gases  
For the purification of waste gas containing nitrogen oxides in combination with CO, VOCs or nitrous oxide, in particular waste gas resulting from the production of cement clinker, nitric acid,...
8940262 Process and plant for the removal of nitrogen oxides from oxygen-containing gas streams  
The invention relates to a process for the removal of NO and NO2 from an oxygen-containing gas stream, which comprises a scrubbing step in which the gas stream is brought into contact with an...
8938951 Device for storing and supplying ammonia and exhaust line equipped with such a device  
A device for storing and supplying ammonia to an exhaust line of an automobile vehicle, includes a solid material provided for absorbing the ammonia, a reservoir for storing the solid material,...
8940259 Catalysed soot filter  
A catalyzed soot filter for a diesel engine comprises a wall flow substrate having a substrate axial length, wherein surfaces of both the internal walls of a plurality of inlet and a plurality of...
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...
8932847 Microbial production of nitrous oxide coupled with chemical reaction of gaseous nitrous oxide  
A bioreactor designed to produce N2O from organic nitrogen and/or reactive nitrogen in waste is coupled to a hardware reactor device in which the N2O is consumed in a gas phase chemical reaction,...
8932849 Microbial production of nitrous oxide coupled with chemical reaction of gaseous nitrous oxide including phosphorus recovery and nitrite reduction to nitrous oxide  
A method to produce N2O from organic nitrogen and/or reactive nitrogen in waste uses a bioreactor coupled to a hardware reactor device in which the N2O is consumed in a gas phase chemical...
8932848 Microbial production of nitrous oxide coupled with chemical reaction of gaseous nitrous oxide  
A bioreactor designed to produce N2O from organic nitrogen and/or reactive nitrogen in waste is coupled to a hardware reactor device in which the N2O is consumed in a gas phase chemical reaction,...
8926925 SCR catalytic converter having improved hydrocarbon resistance  
A catalyst for the selective catalytic reduction of nitrogen oxides in diesel engine exhaust gases using ammonia or a precursor compound decomposable to ammonia. The catalyst includes two...
8920759 Method and apparatus for reducing NOx emissions from a lean burning hydrocarbon fueled power source  
One embodiment includes an oxidation catalyst assembly formed by applying a washcoat of platinum and a NOx storage material to a portion of a substrate material.
8916119 System using selective catalytic reduction for improving low-temperature De-NOx efficiency and reducing yellow plume  
The present disclosure relates to a method for removing nitrogen oxides (NOx) more effectively at 300° C. or below in boilers, gas turbines, incinerators, diesel engines, glass melting furnaces,...
8911698 Supported catalyst for removing nitrogen oxides, method of preparing the same, and removing method of nitrogen oxides using the same  
A supported catalyst for reduction reaction of nitrogen oxides includes a support and an silver (Ag)-based compound and aluminum fluoride which are immobilized in the support. A method for...
8900536 Catalyst support materials, catalysts, methods of making them and uses thereof  
Catalyst support materials, catalysts, methods of making such and uses thereof are described. Methods of making catalyst support material include combining anatase titania slurry with i) a low...
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...
8894952 Method of reducing nitrogen oxide using amine compound as reductant  
A method of reducing nitrogen oxide includes a process of injecting a reductant including an amine compound and an exhaust gas including nitrogen oxide into a catalyst system including a silver...
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...
8883103 Catalytic converter for treating ionized exhaust  
A method for treating exhaust from an engine. The method includes activating an exhaust ionizer in receipt of the exhaust when temperature of a catalyst of a selective catalytic converter, which...
8883100 Particle reduction with combined SCR and NH3 slip catalyst  
The present invention relates to a particle filter comprising a porous carrier body, an SCR active component and an oxidation catalyst, wherein the SCR active component is present as coating on...
8883106 Method and a device for removing nitrogen oxides and sulphur trioxide from a process gas  
A catalytic reactor (16) is provided for purposes of effecting therewith the removal of nitrogen oxides from a process gas (F) that includes at least two catalyst bed segments (48, 50, 52), each...
8877150 Single-step process for the simultaneous removal of CO2, SOx and NOx from a gas mixture  
A method for the removal of CO2, SOx and NOx in a single-step process is described herein. A gas mixture is directed to a carbonator. A carbonaceous material and calcium sorbent is then injected...
8871164 Air pollution control system and method  
SOx removal equipment for reducing sulfur oxides from flue gas from a boiler, a cooler which is provided on the downstream side of the SOx removal equipment, for reducing the sulfur oxides from...
8871673 Catalyst production method therefor and use thereof for decomposing N2O  
Catalysts for the decomposition of N2O into nitrogen and oxygen in the gas phase, which comprises a porous support composed of polycrystalline or vitreous inorganic material, a cerium oxide...
8845987 Method for improving lean performance of PGM catalyst systems: synergized PGM  
Synergized Platinum Group Metals (SPGM) catalyst system for TWC application is disclosed. Disclosed SPGM catalyst system may include a washcoat with a Cu—Mn spinel structure and an overcoat that...
8835349 Exhaust purifying catalyst  
An exhaust purifying catalyst includes: a substrate; a first-stage catalyst that includes an oxygen storage capacity (OSC) material and that is provided on the substrate on an upstream side...
8834821 Control techniques for an SCR aftertreatment system  
A method includes providing: a selective catalytic reduction (SCR) catalyst disposed in an exhaust gas stream of an internal combustion engine, a reagent injector operationally coupled to the...
8834823 Catalytic reduction of NOx with high activity catalysts  
Methods and systems for selective catalytic reduction of NOx with an activated-carbon-supported metal catalyst at an operating temperature of between about between about 500° C. and about 750° C....
8815194 NOx removal catalyst for high-temperature flue gas, manufacturing method thereof, and NOx removal method for high-temperature flue gas  
A NOx removal catalyst for high-temperature flue gas according to the present invention is a NOx removal catalyst for high-temperature flue gas that contains nitrogen oxide in which tungsten oxide...
8815196 Method for in-duct urea injection for selective catalytic reduction on small boilers and combustion sources  
A method for reducing NOx emissions from a lean burn combustor equipped with a NOx reducing exhaust catalyst, includes at least the following steps: (i) generating a computer based model of the...
8815195 Catalytic reduction of NOx with high activity catalysts with propylene reductant  
Methods and systems are provided for selective catalytic reduction of NOx with a low molecular low molecular weight hydrocarbon, e.g., propylene, as a reductant using a catalyst system including...
8815767 Mixed oxides catalysts  
Mixed oxides catalysts usable in particular in the full oxidation to CO2 and H2O of volatile organic compounds (VOC), in the decomposition of nitrogen protoxide to nitrogen and oxygen and the...
8815197 Method for urea decomposition and ammonia feed to a selective catalytic reduction system  
A method of reducing NOx emissions from a lean burn combustion source employs an aqueous solution of reagent that is injected into a continuous decomposition duct at a rate of 0.2-10 gph with a...