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8178065 |
Photocatalyst comprising TiO2 and activated carbon made from date pits
A photocatalyst is provided that comprises activated carbon produced from date pits, impregnated with TiO2. The activated carbon can have a porous surface that can attract and trap pollutants...
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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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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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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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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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8105562 |
Method for the treatment of exhaust gases containing organosilicon components or accompanying substances, and apparatus therefor
The invention relates to a method and an apparatus for treating exhaust gases comprising organosilicon components or accompanying substances. The invention more specifically relates to the use of...
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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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8092769 |
Production of one or more useful products from lesser value halogenated materials
A process and apparatus are described for converting a feed that is substantially comprised of halogenated materials, and especially byproduct and waste chlorinated hydrocarbons as are produced...
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8080226 |
Methods and sytems for the destruction of perfluorinated compounds
Methods and systems for the destruction of one or more PFCs in a gas stream are provided. The gas stream can come from semiconductor processing, for example. The PFCs in the gas stream are reacted...
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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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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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8048391 |
Purifier comprising a photocatalytic filter
The present invention relates to a gas purifier containing a filtering media having a photocatalytic action, a system for illuminating said media with UV radiation, a time-delay means or a volatile...
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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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7981390 |
Small engine palladium catalyst article and method of making
Catalyst articles comprising substantially only a palladium precious metal component and related methods of preparation and use are disclosed. Disclosed is a catalyst article comprising a first...
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7959883 |
Engine exhaust gas reactors and methods
Particulate pollutants such as carbonaceous particles are removed from an engine exhaust stream by passing the exhaust stream through an exhaust gas reactor, the exhaust stream first traversing a...
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7955578 |
Method and apparatus for treating gas containing flourine-containing compounds
To provide a method and apparatus for treating a waste gas containing fluorine-containing compounds, according to which PFCs can be decomposed efficiently even at low temperature, and moreover...
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7951346 |
Methods and systems for reducing particulate matter in a gaseous stream
Methods and systems for reducing emissions of particulate matter from a gaseous stream are provided. The subject systems include a catalyst that reduces the amount of particulate matter emissions...
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7931881 |
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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7922988 |
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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7922987 |
Catalytically coated diesel particle filter, process for producing it and its use
A diesel particulate filter with an oxidation catalyst comprising platinum and palladium deposited thereon is described. Addition of HC storage components to the oxidation catalyst allows the...
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7892507 |
Gas processing for catalytically oxidizing carbon monoxide and hydrocarbons in the presence of a metal/silica-containing zirconia catalyst
The processing of gases, in particular the exhaust gas of an internal combustion/diesel engine, entails catalytically oxidizing the carbon monoxide and hydrocarbons contained therein in an...
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7879758 |
Catalytically active porous element
A catalytically active porous element for promoting catalytic gas phase reactions is proposed, said element comprising a porous structural element of sintered ceramic or metallic primary particles,...
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7837966 |
Destruction of hydrocarbon emissions
Ozone and, if necessary, water is added to an exhaust gas, such as air, containing hydrogen- and carbon-containing molecules of a pollutant. The exhaust gas is then continually flowed into one or...
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7820123 |
Device for the purification of exhaust gas
As a device for the purification of exhaust gas, a three-way catalyst A purifying hydrocarbon, carbon monoxide and nitrogen oxide in the vicinity of theoretical air-fuel ratio is disposed at an...
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7811539 |
Device and method for filtering contaminants
A filter device and method for using a filter device. The filter device includes a catalyst for catalyzing the reaction of organic molecules, such as an oxidation reaction, and an adsorbent for...
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7797931 |
Catalyst composition for diesel particulate filter
A catalyst composition is provided for use on a diesel particulate filter which facilitates the oxidation of soot from diesel engine exhaust and which generates low NO2 emissions during...
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7790127 |
NOx emission control system for hydrocarbon fueled power source
A method of reducing NOx in a lean burn engine exhaust stream from a hydrocarbon burning engine may be first passing the exhaust stream over a thrifted diesel oxidation catalyst that substantially...
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7790126 |
Method for purifying waste gases of a glass melting process, particularly for glasses for LCD display
The invention is directed to a method for cleaning exhaust gases of a glass melting process. The raw material for production of the glass is charged to the glass furnace and molten glass is removed...
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7785380 |
Method for removing sulfur from a hydrocarbon fuel
Method and apparatus for removing sulfur from a hydrocarbon fuel. The apparatus includes a combustion reactor (3) and a sulfur trap (4) and the combustion reactor (3) is adapted to operate with an...
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7767175 |
Ammonia SCR catalyst and method of using the catalyst
A DPF with an SCR catalyst and a method for selectively reducing nitrogen oxides with ammonia, filtering particulates, and reducing the ignition temperature of soot on a DPF are provided. The...
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7758834 |
Layered catalyst composite
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. In...
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7758832 |
Method of decomposing nitrogen dioxide
A method of decomposing NO2 to NO in an exhaust gas of a lean-bum internal combustion engine comprises the steps of contacting an acidic metal oxide selected from the group consisting of zeolites,...
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7754171 |
Multilayered catalyst compositions
A multilayered, 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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7749473 |
Treatment of engine exhaust using molecular sieve SSZ-75
The present invention relates to new crystalline molecular sieve SSZ-75 having STI framework topology prepared using a tetramethylene-1,4-bis-(N-methylpyrrolidinium) dication as a...
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7731922 |
Apparatus and method for cleaning, neutralizing carbon monoxide and recirculating exhaust air in a confined environment
Exhaust air containing particulate and carbon monoxide gas contaminants is withdrawn from a confined environment, such as a food cooking area, by a circulation system which liquid scrubs...
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7723258 |
Method and substance for reactive catalytic combustion
A process of a catalytic combustion is disclosed. The process can be started at a cold temperature and then raised to a desired high temperature in a very short time by employing a noble metal...
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7694916 |
Catalytic reactive component reduction system and methods for the use thereof
In accordance with the present invention, there are provided simplified systems and methods for catalytically deactivating, removing, or reducing the levels of reactive component(s) from the vapor...
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7670409 |
Method for processing organic solvent-containing air
A method for processing an organic solvent-containing air is disclosed. The method can be operated in spite of a rapid fluctuation of the concentration of the organic solvents in the air to be...
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7670586 |
Process and apparatus for the production of synthesis gas
Reactive diluent fluid (22) is introduced into a stream of synthesis gas (or “syngas”) produced in a heat-generating unit such as a partial oxidation (“POX”) reactor (12) to cool the syngas and for...
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7622096 |
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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7622095 |
Catalyst composition for use in a lean NOx trap and method of using
A lean NOx trap composition. The lean NOx trap composition utilizes ruthenium in place of higher cost metals such as platinum. The lean NOx trap composition provides high NOx storage efficiency and...
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7582272 |
Method of treating a catalytic reactor system prior to reactor servicing
A method of servicing a catalytic reactor system, comprising an abatement of at least one hazardous substance from the catalytic reactor system while preserving activity of a catalyst contained...
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7569197 |
Process for purification of sulphur-containing exhaust gas
The invention provides a process and system for purification of an exhaust gas stream from a combustion engine containing hydrocarbons, soot, carbon monoxide and sulphur dioxide. The process...
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7521031 |
Method and apparatus for treating exhaust gas
A method for treating exhaust gas includes: adsorbing target components in the exhaust gas with an adsorbent (5); introducing a nitrogen gas with an oxygen concentration of 10 vol % or less and a...
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7521033 |
Exhaust inlet metallic foam trap coupled to a downstream monolithic precious metal catalyst
The present invention is directed to an improved apparatus and method of minimizing catalyst poisoning from exhaust gas streams containing inorganic deposits and particulate matter. More...
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7517510 |
Layered catalyst composite
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. In...
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7494633 |
Gas abatement
Apparatus is described for treating an effluent fluid stream from a semiconductor manufacturing process tool. The apparatus comprises a combustion chamber, means for heating the combustion chamber,...
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7488462 |
Multi-stage catalyst systems and uses thereof
Catalyst systems and methods provide benefits in reducing the content of nitrogen oxides in a gaseous stream containing nitric oxide (NO), hydrocarbons, carbon monoxide (CO), and oxygen (O2). The...
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7462339 |
Metallic foam trap for poisons: aircraft ozone
The present invention is directed to an improved apparatus and method of minimizing catalyst poisoning by inorganic deposits from lube oil additives and particulate matter, especially in aircraft....
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7459135 |
Method for the removal of NOx and catalyst therefor
The invention relates to a method for the catalytic reduction of NOx in an NOx containing gas using methane in the presence of a catalyst which comprises a palladium-containing zeolite. In this...
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