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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 NO x trap composition. The lean NO x trap composition utilizes ruthenium in place of higher cost metals such as platinum. The lean NO x trap composition provides high NO x storage...
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7601201 |
Method of removing carbon monoxide from an oxygen carrier and apparatus for removing carbon monoxide
A method of removing carbon monoxide from an oxygen carrier including setting a carbon monoxide bonded oxygen carrier solution across a separation membrane from an oxygen-dissolved solution; and...
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7572422 |
Exhaust gas purifying method for fuel cell vehicle and exhaust gas purifying system for fuel cell vehicle
An exhaust gas purifying method for a fuel cell vehicle comprises preparing an exhaust gas purifying system for the fuel cell vehicle, the exhaust gas purifying system including a methane removal...
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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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7560410 |
Gold-ceria catalyst for oxidation of carbon monoxide
A catalyst comprising gold nanodots on cerium oxide, catalytically active for oxidation of carbon monoxide at room temperature. The catalyst is prepared by deposition-precipitation followed by...
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7544341 |
Method of removing carbon monoxide
A carbon monoxide removing catalyst such as a ruthenium supporting catalyst is provided for removing, through oxidation thereof, carbon monoxide from an alcohol reformed gas containing hydrogen and...
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7541012 |
Catalytic material and method of production thereof
The present invention features a catalytic material which includes a metal catalyst anchored to a nano-sized crystal containing a metal oxide. Furthermore, the present invention features a method...
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7537742 |
Process and adsorbent for hydrogen purification
This invention discloses an optimum set of adsorbents for use in H 2 -PSA processes. Each adsorbent bed is divided into four regions; Region 1 contains adsorbent for removing water; Region 2 ...
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7524358 |
Production of high purity and ultra-high purity gas
Trace amounts of carbon monoxide and optionally hydrogen are removed from gaseous feed streams by passing the feed stream through a carbon monoxide adsorbent ( 33 ) prior to passing it through a...
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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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7514055 |
Method of controlling emissions from a diesel cycle internal combustion engine with perovskite-type metal oxide compounds
Methods of controlling emissions from a diesel engine are provided. The method includes contacting the emissions with a perovskite-type catalyst consisting essentially of a metal oxide composition...
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7514057 |
Process for selective oxidation of carbon monoxide in a hydrogen containing stream
A method of making a composition, said method comprising, spraying a substance comprising platinum and iron into or onto an alumina-containing compound is disclosed. The resulting composition can...
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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 (O 2 ). The...
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7455818 |
Method for treating a flow of gas and gas treatment system
A method treats a flow gas that is guided via a catalytic adsorber module to oxidize contaminants carried in the flow gas. The method reliably purifies the flow gas using equipment that is held to...
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7445649 |
Hot solids gasifier with CO2 removal and hydrogen production
A gasifier 10 includes a first chemical process loop 12 having an exothermic oxidizer reactor 14 and an endothermic reducer reactor 16 . CaS is oxidized in air in the oxidizer reactor 14 ...
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7399326 |
Carbon monoxide clean-up in a PEM fuel cell system
A fuel processor system is provided including an autothermal reactor (ATR), a pressure swing adsorber (PSA) located downstream of the ATR, and a methanation reactor located downstream of the PSA. A...
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7399458 |
Fired equipment with catalytic converter and method of operating same
A fired equipment system and process for operating same is provided that combines stationary industrial burner technology and a catalyst bed that converts pollutants formed during combustion of...
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7396516 |
Manganese containing oxygen storage component comprising three-way catalyst composition
A three-way catalyst (TWC) composition comprises a manganese-containing oxygen storage component (OSC) and at least one optionally doped alumina wherein where the at least one alumina is...
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7390768 |
Stabilized tin-oxide-based oxidation/reduction catalysts
The invention described herein involves a novel approach to the production of oxidation/reduction catalytic systems. The present invention serves to stabilize the tin oxide reducible metal-oxide...
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7390471 |
Apparatus and method for catalytic treatment of exhaust gases
An exhaust gas treatment apparatus ( 20 ) for reducing the concentration of NO x , HC and CO in an exhaust gas stream ( 18 ) such as produced by a gas turbine engine ( 12 ) of a power generating...
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7390347 |
Zeolite membranes for selective oxidation of carbon monoxide in mixed hydrogen gas source
Methods and apparatus are taught for selectively oxidizing carbon monoxide in a source of gas containing carbon monoxide and hydrogen. A gas containing carbon monoxide and hydrogen is fed into a...
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7384986 |
Process for the selective methanation of carbonmonoxide (CO) contained in a hydrogen-rich reformate gas
The present invention provides a methanation catalyst prepared by depositing Pt and Ru on a metal oxide carrier by incipient wetness impregnation or precipitation deposition, drying and calcining...
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7361319 |
Mixed metal oxide sorbents
The present invention is directed to methods for reducing SOx, NOx, and CO emissions from a fluid stream comprising contacting said fluid stream with a compound comprising magnesium and aluminum...
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7357902 |
Process for the removal of oxygen from olefin-containing process streams
Process for the removal of oxygen from a gas mixture comprising oxygen, at least one olefin, hydrogen, carbon monoxide and optionally at least one alkyne, the ratio of oxygen:hydrogen in the gas...
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7326394 |
Catalysts, methods of making catalysts, and methods of combustion
Catalysts are described in which an active catalyst is disposed on a low surface area, oxide support. Methods of forming catalysts are described in which a Cr-containing metal is oxidized to form a...
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7309376 |
Method and installation for producing breathable air
The invention relates to a process for producing respirable air comprising the following stages: treatment of compressed air comprising an air-drying operation; and rehumidification of the treated...
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7285258 |
Conversion of CO to CO2
Gold oxide is precipitated together with iron oxide from a solution containing a gold source and an iron source; the gel formed thereby is washed, dried, ground to a size range of 0.85 mm to 4.25...
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7261870 |
Process for the reduction of carbon monoxide and carbonyl sulfide emissions
Carbon monoxide and carbonyl sulfide emissions are reduced in manufacturing processes, including titanium tetrachloride production processes. Gas is contacted with CO, COS, and an oxygen-containing...
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7247188 |
Particle producing method and particle producing apparatus
A particle producing apparatus includes a reaction container, an introduction portion for introducing a source gas and a reaction inhibitor generating gas into the reaction container, an inert gas...
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7238333 |
High activity water gas shift catalysts with no methane formation
A method of reducing an amount of carbon monoxide in process fuel gas in a water gas shift converter with no methane formation. The method includes placing a high activity water gas shift catalyst...
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7235223 |
Method for operating a flue gas purification plant
In a method for operating a flue gas purification plant ( 10 ) including a plurality of parallel of absorber chambers ( 11 ), in which in each absorber chamber ( 11 ), CO and NO are simultaneously...
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7211232 |
Refractory exhaust filtering method and apparatus
A method for catalytically cleaning an exhaust gas, including receiving the exhaust gas in an inlet channel, blocking the exhaust gas in the inlet channel, diffusing the exhaust gas through a...
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7208128 |
Manganese-based oxidation catalyst
A catalyst for the oxidation of volatile organic compounds and carbon monoxide comprising manganese and alumina, such catalyst having been impregnated with a phosphorus compound. The presence of...
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7195742 |
Preferential oxidation reactor and process
An apparatus for preferential oxidation of carbon monoxide in a reformate flow includes a reactor defining a flow path for a reformate flow; at least one catalyst bed disposed along the flow path;...
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7175821 |
Reactor and process for reducing emissions of CO and NOx
The current invention provides systems and method for reducing emissions of gaseous pollutants such as carbon monoxide, nitric oxide and nitrogen dioxide. The invention utilizes at least one...
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7169376 |
Method for making hydrogen using a gold containing water-gas shift catalyst
The present invention relates to a method for making hydrogen comprising contacting in a water-gas shift reaction zone a feed comprising carbon monoxide and water under water-gas shift conditions...
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7119044 |
Multiple washcoats on filter substrate
An integrated multi-functional catalyst system includes a diesel particulate filter having an inlet side for receiving flow and an opposite outlet side, a substrate in the diesel particulate filter...
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7118717 |
Simplified article for carbon monoxide removal
Provided are improved carbon monoxide removal articles and processes for treating hydrogen gas streams to achieve very low threshold levels of carbon monoxide. The articles have a substrate with an...
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7115236 |
Exhaust gas purifying method and system for fuel cell vehicle
An exhaust gas purifying method for a fuel cell vehicle comprises preparing an exhaust gas purifying system for the fuel cell vehicle, the exhaust gas purifying system including a methane removal...
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7083658 |
Hot solids gasifier with CO2 removal and hydrogen production
A gasifier 10 includes a first chemical process loop 12 having an exothermic oxidizer reactor 14 and an endothermic reducer reactor 16 . CaS is oxidized in air in the oxidizer reactor 14 ...
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7070746 |
Process for nitrous oxide purification
A method for purification of an oxygen contaminated nitrous oxide gas by feeding the nitrous oxide gas and a reducing agent such as hydrogen, carbon monoxide or ammonia into a de-oxidation reactor,...
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7056487 |
Gas cleaning system and method
A gas cleaning system for removing at least a portion of contaminants, such as halides, sulfur, particulates, mercury, and others, from a synthesis gas (syngas). The gas cleaning system may include...
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7041263 |
Catalyst composition for purifying exhaust gas
The present invention relates to a composite of cerium, zirconium and samarium components, a catalyst composition containing such composite and the use of the catalyst composition for the treatment...
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7029640 |
Process for selective oxidation of carbon monoxide in a hydrogen containing stream
In a process for oxidizing carbon monoxide with oxygen to carbon dioxide using a composition comprising platinum and iron, a process of at least partially regenerating the composition is disclosed.
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7014825 |
Perovskite-type metal oxide compounds and methods of making and using thereof
Perovskite-type catalyst consists essentially of a metal oxide composition and methods of using them are provided. The metal oxide composition is represented by the general formula A a−x B x MO b...
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7001867 |
Rare earth aluminates and gallates supported rhodium catalysts for catalytic partial oxidation of hydrocarbons
The present invention relates to improved catalyst compositions, as well as methods of making and using such compositions. In particular, preferred embodiments of the present invention comprise...
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6989044 |
Intermolecularly bound transition element complexes for oxygen-selective adsorption
A process and composition for selectively adsorbing oxygen from a gaseous mixture. The chemisorption is carried out by a porous three-dimensional transition element complex comprised of...
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