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8182776 |
Process for operating a fossil fuel fired power plant
An integrated process for operating a fossil fuel fired power plant including: producing hydrogen gas and an aqueous solution of hydrogen peroxide via a process including: dissociating hydrogen gas...
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8182775 |
Dry-scrubbing media compositions and methods of production and use
Dry-scrubbing media compositions, methods of preparing same, and methods of use are provided. The compositions contain activated alumina and potassium carbonate. Optionally, activated carbon and...
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8178064 |
Treatment of power utilities exhaust
Provided is a process for treating nitrogen oxide-containing exhaust produced by a stationary combustion source by the catalytic reduction of nitrogen oxide in the presence of a reductant...
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8178460 |
Exhaust treatment system and method of operation
An exhaust treatment method is provided. Method of increasing activation of NOx reduction catalyst using two or more reductant is discussed. The NOx catalyst is disposed to receive both the exhaust...
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8172925 |
Multi-functional cabin air filter
A multi-functional cabin air filter includes a dust collecting filter layer for collecting fine dust; an oxidation catalyst filter layer for oxidizing nitrogen monoxide into nitrogen dioxide; and...
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8173087 |
Gasoline engine emissions treatment systems having particulate traps
Provided are exhaust systems and components suitable for use in conjunction with gasoline direct injection (GDI) engines to capture particulates in addition to reducing gaseous emission such as...
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8173088 |
Method, system and apparatus for liquid injection into a gas system
A method for injection reductant into an exhaust gas and for evaporating and decomposing the reductant at an elevated temperature includes providing an exhaust pipe having an interior surface and...
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8153090 |
Cold selective catalytic reduction
A system to control the emissions of a fluid stream in a cyclical fashion utilizing an up-flow cycle and a down-flow cycle. The system may include a first inlet and a first outlet at a first end of...
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8148295 |
Catalyst promoters in vanadium-free mobile catalyst
Low temperature activity of a vanadium-free selective catalytic reduction catalyst is provided by a mixed metal oxide support containing oxides of titanium and zirconium, the support having a...
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8147784 |
Combined waste gas treatment of waste gas streams containing ammonia and nitrogen oxides in industrial plants
Combined removal of both ammonia from an ammonia-containing waste gas and nitrogen oxides from a nitrogen oxide-containing waste gas in a combined ammonia/urea synthesis plant is accomplished by...
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8142746 |
Separation of carbon dioxide from methane utilizing zeolitic imidazolate framework materials
The present invention relates to the selective separation of carbon dioxide (“CO2”) from methane (“CH4”) in streams containing both carbon dioxide and methane utilizing a zeolitic imidazo...
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8142747 |
Catalytic reduction of NOx
A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, a particulate filter, a source of...
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8142745 |
Separation of carbon dioxide from nitrogen utilizing zeolitic imidazolate framework materials
The present invention relates to the selective separation of carbon dioxide (“CO2”) from nitrogen (“N2”) in streams containing both carbon dioxide and nitrogen utilizing a zeolitic imidazo...
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8142744 |
Integrated boiler and air pollution control systems
An air pollution control system includes an emission treatment system configured to receive flue gas, to reduce at least one pollutant therefrom, and to output emission treated flue gas. A first...
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8114369 |
Catalyst containing platinum and palladium for the selective reduction of NOx with hydrogen (H2-SCR)
The invention relates to a novel catalyst having excellent activity and selectivity for reducing nitric oxides (NO/NO2) to nitrogen gas (N2) with hydrogen (H2) being used as a reducing agent under...
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8113822 |
Combustion method and combustion apparatus
First, to decrease an amount of emitted nitrogen oxides to zero as much as possible and also decrease an amount of emitted carbon monoxide to a permissible level. Second, to save energy on...
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8105560 |
System for treating a gas stream
A system for treating a gas stream containing nitrogen oxides (NOx) and particulates flowing in the system comprises means for injecting a source of ammonia (NH3) or urea (CO(NH2)2) into a flowing...
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8105559 |
Thermally regenerable nitric oxide adsorbent
A method of reducing nitrogen oxides (NOx) present in a lean gas stream comprising nitric oxide (NO) comprises the steps of: (i) net adsorbing NO per se from the lean gas stream in an adsorbent...
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8101145 |
Exhaust treatment system and method of operation
An exhaust treatment system is provided. Method of increasing activation of NOx reduction catalyst using two or more reductant is discussed. The exhaust treatment system includes an exhaust source,...
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8101146 |
Catalysts for the reduction of ammonia emission from rich-burn exhaust
A system for reducing ammonia (NH3) emissions includes (a) a first component comprising a first substrate containing a three-way catalyst, wherein the first component is disposed upstream of a...
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8092767 |
Method of decomposing nitrogen dioxide
A method of decomposing nitrogen dioxide to nitrogen monoxide in an exhaust gas of a lean-burn internal combustion engine, such as a diesel engine, comprises adjusting the C1 hydrocarbon:nitrogen...
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8091351 |
Non-zeolite base metal SCR catalyst
An article for treating a gas containing nitrogen oxides including: (a) a monolith substrate; and(b) a catalytic composition containing at least one catalytic component consisting of (i) at least...
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8088348 |
Air pollution control system and method for coal combustion boiler
An air pollution control system for a coal combustion boiler includes: a NOx removing apparatus that reduces nitrogen oxide contained in flue gas emitted from this coal combustion boiler, an air...
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8088201 |
Method and device for safe storage and use of volatile ammonia storage materials
There is described a method and apparatus (100, 100′) for storing and delivering ammonia wherein at least two ammonia storage materials (1a, 2a) capable of reversibly adsorbing or absorbing a...
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8083518 |
Combustion method and combustion apparatus
A combustion method applied to a water-tube boiler and a regenerator of an absorption-type refrigerator includes a concentration ratio adjusting step of adjusting a concentration ratio of nitrogen...
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8084008 |
Production of saturated ammonia storage materials
A process for saturating a material capable of binding ammonia by ad- or absorption and initially free of ammonia or partially saturated with ammonia comprises treating said material under a...
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8075859 |
Nanocomposite particle and process of preparing the same
A nanocomposite particle, its use as a catalyst, and a method of making it are disclosed. The nanocomposite particle comprises titanium dioxide nanoparticles, metal oxide nanoparticles, and a...
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8075672 |
Method of removing nitrous oxide
Hydroxylamine is formed in a reactor through a partial hydrogenation of nitric oxide gas (NO) with hydrogen gas (H2) in an aqueous medium with nitrogen gas (N2) as an inert gas. The formation of...
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8071060 |
Flue gas control system of coal combustion boiler and operating method thereof
A flue gas control system of a coal combustion boiler comprises an HCl atomizer that sprays hydrogen chloride to flue gas from a coal combustion boiler that uses coal as a fuel; NOx removing...
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8066963 |
Removal of particulates from the exhaust gas of internal combustion engines operated with a predominantly stoichiometric air/fuel mixture
The exhaust gas of internal combustion engines operated with a predominantly stoichiometric air/fuel mixture contains, as well as the gaseous hydrocarbon (HC), carbon monoxide (CO) and nitrogen...
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8062617 |
Process and catalyst system for SCR of NOx
Process for reducing nitrogen oxides to nitrogen in an exhaust gas comprising passing the exhaust gas in the presence of a reducing agent through a catalyst system comprising at least two catalyst...
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8062618 |
Exhaust aftertreatment system and method of treating exhaust gas
A diesel exhaust aftertreatment system and method are provided. The system includes a lean NOx trap for reducing NOx and a transition metal-exchanged zeolite booster catalyst positioned downstream...
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8057767 |
Base metal oxides oxidation catalyst
Chemical species such as nitrogen oxide (NO), carbon monoxide, and low molecular weight hydrocarbons (e.g., C1-C5 and saturated or ethylenically unsaturated) in an oxygen-containing gas stream,...
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8052950 |
Multi-compartment overfire air and N-agent injection method for nitrogen oxide reduction in flue gas
A method of decreasing a concentration of nitrogen oxides in a combustion gas flowing through a vessel including: generating a flue gas in a combustion zone of the vessel, the flue gas containing...
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8043590 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Catalytic reduction of NOx
A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, a particulate filter, a source of...
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8043589 |
Process for removing carbonyl sulphide and hydrogen sulphide from a synthesis gas stream
The invention provides a process for removing COS and H2S from a feed synthesis gas stream comprising COS and H2S, the process comprising contacting the feed synthesis gas stream with solid...
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8034309 |
Photocatalytic process using hydrophilifiable material
In a formulation comprising titanium dioxide as a photocatalyst and an amphoteric metal oxide (alumina or the like) or a basic metal oxide (barium oxide, strontium oxide or the like) as a material...
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8034311 |
Oxidation catalyst and exhaust-gas purification system using the same
An oxidation catalyst that efficiently promotes oxidation of NO to NO2 even in a low temperature range, and an exhaust-gas purification system and method that efficiently removes exhaust-gas...
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8025717 |
Process to separate particles from a particles-containing gas stream
Process to separate particles from a particles-containing gas stream, by subjecting the particles-containing gas stream to a centrifugal separation step, wherein the particles-containing gas stream...
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8022010 |
NOx storage materials and traps resistant to thermal aging
Nitrogen oxide storage materials and methods of manufacturing nitrogen oxide storage materials are disclosed. The nitrogen oxide storage materials can be used to manufacture catalytic trap disposed...
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8017097 |
ZrOx, Ce-ZrOx, Ce-Zr-REOx as host matrices for redox active cations for low temperature, hydrothermally durable and poison resistant SCR catalysts
The present invention relates to application of catalysts for the Selective Catalytic Reduction of oxides of Nitrogen using N-containing reductant. The catalysts are characterized as phase pure...
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8007750 |
Multilayered catalyst compositions
A layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed....
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8007573 |
Filter and associated method
A filter includes a membrane having pores and that is air permeable. A nanoparticle precursor is dispersed throughout the pores, and the nanoparticle precursor is responsive to a stimulus to form a...
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8003068 |
Hydrogen chloride supply system, air pollution control system, and hydrogen chloride supply control system
An air pollution control system comprises: a carry-in tank truck that carries in a feedstock, i.e., concentrated hydrochloric acid (35% hydrochloric acid); a hydrogen chloride vaporizer that...
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7998445 |
Method and apparatus for the treatment of nitrogen oxides using an ozone and catalyst hybrid system
The present invention is a method of treating nitrogen oxides using an ozone and catalyst hybrid system, as well as an apparatus, specifically relating to a method of treating nitrogen oxide using...
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7998444 |
Method of reducing nitrogen oxides in a gas stream with vaporized ammonia
The present invention is a method for selective reduction of nitrogen oxides in a gas stream with ammonia wherein the ammonia is vaporized prior to contacting it with the carrying fluid. The...
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7993616 |
Methods and devices for reducing hazardous air pollutants
The disclosure provides methods and systems for sequestering and/or reducing sulfur oxides, nitrogen oxides and/or carbon dioxide present in industrial effluent fluid streams. A solid particulate...
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7993617 |
Alkali resistant catalyst
The present invention concerns the selective removal of nitrogen oxides (NOx) from gasses. In particular, the invention concerns a process, a catalyst and the use of a catalyst for the selective...
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7988940 |
Selective catalytic reduction system and process for treating NOx emissions using a zinc or titanium promoted palladium-zirconium catalyst
A process and system (18) for reducing NOx in a gas using hydrogen as a reducing agent is provided. The process comprises contacting the gas stream (29) with a catalyst system (38) comprising...
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7985391 |
Non-zeolite base metal SCR catalyst
A method of converting nitrogen oxides in a gas stream to nitrogen comprises contacting the nitrogen oxides with a nitrogenous reducing agent in the presence of a non-zeolite base metal catalyst...
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