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7615200 |
Selective catalytic reduction of NOx enabled by urea decomposition in heat-exchanger bypass
Disclosed are a process and apparatus for selective catalytic reduction of NO x . The process is enabled by passing a heat exchanger section, such as an economizer, of the boiler in advance of an...
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7615194 |
Purification composition and filter for ozone-containing exhaust gas
A composition for purifying an ozone-containing gas comprising activated carbon, in which the percentage of the volume of pores having a pore diameter of 0.4-0.8 nm in the volume of pores having a...
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7611680 |
Platinum-bismuth catalysts for treating engine exhaust
An engine exhaust catalyst containing precious metal nanoparticles is promoted with bismuth. The bismuth promotion improves the catalyst's CO oxidation performance. Also, by varying the amount of...
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7611561 |
Diesel exhaust filter construction
A diesel exhaust filter construction includes a rectangular filter block, an elongated non-rectangular jacket with oval cross section, and support structure supporting the filter block in a center...
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7611557 |
Reversed pressure relief valve
A reversed pressure relief valve that is used in connection with a computer hard disk drive so as to vent pressurized gases contained within the disk drive while not permitting debris to enter the...
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7608232 |
Treatment method and treatment apparatus for gas containing nitrous oxide
Nitrous oxide-containing gas is subjected to heat exchange with decomposed gas from a nitrous oxide decomposition catalyst-filled reactor and then contacted with a heater comprising integrally...
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7608226 |
Exhaust stream treatment
A method comprises injecting a reductant stream comprising a hydrocarbon reductant and water into an exhaust chamber comprising a nitrogen oxide-containing exhaust stream; contacting a composition...
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7604779 |
Environmental control system including ozone-destroying catalytic converter having anodized and washcoat layers
An aircraft environmental control system includes a catalytic converter having ozone-destroying capability. A surface of the catalytic converter is anodized to form an anodized layer, and the metal...
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7601306 |
Diesel engine particulate filter
A diesel engine particulate filter (DPF) comprising a case cylinder with a filter space formed by the inner retention cylinder and outer retention cylinder which traverse the radial symmetry of the...
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7597865 |
Nitrogen oxide removal catalyst system and nitrogen oxide removal method
Provided in a catalyst system are: a first reaction part fitted with a first catalyst containing, as active constituents, at least, a complex oxide consisting of two or more oxides selected from...
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7597859 |
Exhaust gas system with two exhaust gas treatment units
An exhaust gas system for an internal combustion engine includes a first exhaust treatment unit with a first back pressure and a second exhaust treatment unit with a second back pressure being...
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7597858 |
Process and apparatus for treating waste anesthetic gas
To provide a process and an apparatus for treating a waste anesthetic gas containing a volatile anesthetic and nitrous oxide, discharged from an operating room. In the present invention, a waste...
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7595033 |
Regeneration of nt-scr catalysts
A process and device for purifying flue gases in refuse incineration plants during regeneration of a catalyst which serves for reducing nitrogen oxides, by, in a first step, removing acidic...
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7591987 |
Method and apparatus for treating ammonia-containing gas
A method for treating an ammonia (NH 3 )-containing gas, which comprises causing the NH 3 -containing gas to pass through a catalyst tower ( 9 ) firstly with a pre-treatment catalyst layer ( 1 )...
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7587819 |
Insert for a catalytic converter and method and apparatus for forming an insert for a catalytic converter
A method of forming an insert for a catalytic converter includes wrapping a catalytic core with a fibrous packing, inserting the wrapped core into a mantle, and forming end portions of the mantle...
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7585471 |
Honeycomb structured body and exhaust gas purifying device
The honeycomb structured body of the present invention is a pillar-shaped honeycomb structured body having a honeycomb structure that a number of through holes are placed in parallel with one...
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7584603 |
Method and system for regenerating NOx adsorbers and/or particulate filters
An active system for regenerating a NOx adsorber and a particulate filter, the system includes a fuel source, a reformer for generating hydrogen and carbon monoxide in fluid communication with the...
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7575729 |
Fuel reforming apparatus and method of controlling the fuel reforming apparatus
A fuel reforming apparatus includes a reforming catalyst, a filtering member, a raw material supply flow passage and a processed gas flow passage. The filtering member has a plurality of cells. A...
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7575726 |
Snap-fit catalyst device
A catalytic converter device, useful with a self-cleaning oven, is provided. The device includes (a) a dish-shaped body formed of a mesh of metal strands, the body having a base member, sidewalls...
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7572415 |
Catalyst converter and diesel, particulate filter system
A holding and sealing material for disposal between a catalyst carrier and a metal shell covering the outer face of the catalyst carrier. The holding and sealing material includes an inorganic...
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7569085 |
System and method for hydrogen production
A system for production of hydrogen comprises at least one steam reforming zone configured to receive a first fuel and steam to produce a first reformate gas stream comprising hydrogen using a...
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7560090 |
Process for producing hydrogen with permselective membrane reactor and permselective membrane reactor
A permselective membrane reactor is provided, including a reactor tube having a gas inlet at one end and a gas outlet at the other end thereof. A separator tube is disposed in the reactor tube and...
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7559967 |
Honeycomb filter
A honeycomb filter includes a honeycomb structure in which a plurality of cells are placed in parallel with one another in the longitudinal direction with a cell wall therebetween; and a...
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7556787 |
Method and apparatus for treating exhaust gases containing fluorine-containing compounds
A method for treating exhaust gases containing fluorine-containing compounds which comprises the steps of bringing an exhaust gas containing fluorine-containing compounds into contact with a metal...
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7550121 |
Reactor of selective-permeation membrane type
A selectively permeable membrane reactor includes a reaction tube including a supply port as an inlet port for a raw material gas and a discharge port as an outlet port for an unseparated gas, and...
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7550118 |
Multilayer mats for use in pollution control devices
Multilayer mats, pollution control devices containing the multilayer mats, and methods of making the multilayer mats are provided. The multilayer mats include a non-intumescent layer sandwiched...
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7550117 |
Nonwoven composites and related products and processes
The present invention in certain embodiments is directed to a catalytic substrate suitable for use in a number of applications, including as a substrate in a catalytic converter or a particulate...
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7541005 |
Catalytic thermal barrier coatings
A catalyst element ( 30 ) for high temperature applications such as a gas turbine engine. The catalyst element includes a metal substrate such as a tube ( 32 ) having a layer of ceramic thermal...
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7534399 |
Hazardous gas abatement system using electrical heater and water scrubber
A hazardous gas abatement system decontaminates an exit gas stream containing global warming gases using an electrical heater and a water scrubber. One or more top flow hazardous gas inlets...
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7531141 |
Mobile air decontamination and purification unit
A variety of transportable air treatment system improvements are described. In one aspect of the invention, the system is designed to significantly reduce the noise generated during operation. In...
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7528087 |
Porous mullite bodies and methods of forming them
A porous mullite composition is made by Forming a mixture of one or more precursor compounds having the elements present in mullite (e.g., clay, alumina, silica) and a property enhancing compound....
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7524464 |
Smart disposable plastic lab-on-a-chip for point-of-care testing
Disclosed herein is a fully-integrated, disposable biochip for point-of-care testing of clinically relevant parameters. Specifically, in accordance with an embodiment of the present invention, the...
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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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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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7521025 |
Honeycomb structural body
An object of the present invention is to provide a honeycomb structural body for use in a filter, which can be provided with a large amount of catalyst, can suppress an increase in pressure loss...
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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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7517380 |
Serviceable aligned exhaust aftertreatment assembly
An exhaust aftertreatment system and method enables servicing by a single technician and provides singular location mounting and alignment.
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7506504 |
DOC and particulate control system for diesel engines
The present invention is directed to an emission treatment system for the treatment and/or conversion of engine emissions and particulate matter from diesel engines. The emission treatment system...
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7501111 |
Increased capacity sulfur recovery plant and process for recovering elemental sulfur
Claus sulfur recovery plants that include one or more single-stage or multi-stage compact tubular Claus catalytic reactor-heat exchanger units are disclosed. In some instances, these new or...
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7501104 |
Apparatus and method for treating discharge gas
A discharge gas treatment apparatus and method which lower treatment cost and which attain efficient removal of mercury contained in a discharge gas are provided. The discharge gas treatment...
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7501102 |
Reactor having improved heat transfer
A catalytic reactor or heat exchanger includes a monolith defining a plurality of leaves, the monolith having a generally annular cross-section. The monolith is disposed within a generally...
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7501100 |
Filter system for electrochemical air separation device
The present invention provides a filter system for treating air entering an electrochemical air separation device. The filter is provided with first and second filter sections. The first filter...
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7501098 |
Exhaust gas treatment catalyst
Provided are an exhaust treatment catalyst and an exhaust article containing the catalyst. The catalyst comprises a carrier; a first layer deposited on the carrier, said first layer comprising...
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7497999 |
Honeycomb structural body, method of manufacturing the structural body, and catalyst body using the structural body
A honeycomb structure of the present invention is a honeycomb structure 1 including: a cell structural part 2 including a plurality of cells 6 partitioned by partition walls 4 in a...
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7494634 |
Reduction of nitrogen oxides using multiple split streams
Systems and methods of removing at least nitrogen oxides from an exhaust fluid generally include dividing a flow of an exhaust fluid comprising a concentration of nitric oxide into three types of...
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7494533 |
Systems for purifying gases having organic impurities using granulated porous glass
Methods and apparatus for purifying gases having organic impurities, including the use of granulated porous glass. A system for purifying an impure gas includes a source of an impure gas, a...
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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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7488456 |
Method of treating atmospheric pollutants
A method of reducing at least one atmospheric oxidizing pollutant, such as ozone, with a reducing agent comprises contacting the reducing agent with the at least one atmospheric oxidizing...
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7487927 |
Fertilizing system and method by extracting nitrogen compounds from combustion exhaust gases
A fertilizer system is provided using extraction of nitrogen compounds and other plant nutrients from combustion exhaust gases, and which is particularly suited for use with an agricultural...
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7485272 |
Multi-stage system for selective catalytic reduction
A first aspect of the present disclosure includes a method of controlling nitric oxides emissions. The method may include producing an exhaust gas stream containing NOx and supplying the exhaust...
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