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7431032 |
Low power ambulatory oxygen concentrator
An oxygen concentrator comprises a vacuum swing adsorption (VSA) gas separation system which includes a cartridge containing a mass of adsorbent material for producing oxygen, a drive which...
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7407528 |
Method for operating an air fractionization installation for obtaining oxygen on board an aircraft
The method serves for operating an air fractionization installation for obtaining oxygen on board an aircraft, with at least two molecular sieve chambers. A part mass flow of the oxygen obtained in...
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7282083 |
Methods, systems, and uses for calixarenes
A method of identifying, detecting and/or chemically using NO X compounds is provided, wherein calixarene complexes are exposed to a nitrogen-oxide gas containing samples and form...
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7258725 |
Gas supplying method and system
Gas supplying method and system in which effective component gas in exhaust gas can be separated and purified efficiently to be resupplied regardless of variation in the flow rate or composition of...
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7250150 |
Chemical reactor with pressure swing adsorption
A chemical reaction is performed with separation of the product(s) and reactant(s) by pressure swing adsorption (PSA), using an apparatus having a plurality of adsorbers cooperating with first and...
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7238223 |
Acoustical stimulation of vapor diffusion system and method
An apparatus for removing constituents from a fluid stream is provided. The apparatus includes a duct, a collection device, a sorbent injector, and an acoustic generator. The duct has a fluid...
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7172645 |
Gas filtration and storage using activated carbon/graphite foam monoliths
An apparatus for separating a first gas from a mixture of the first gas and at least one second gas comprises a housing having an inlet port and an outlet port and an adsorbent which is positioned...
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7171963 |
Product pump for an oxygen concentrator
A product pump for pumping separated product gas from an oxygen concentrator which produces oxygen-rich product gas by utilizing a vacuum swing adsorption (VSA) process. The oxygen concentrator...
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7144445 |
Use of an adsorbent in solid foam form for the purification or separation of gases
Process for purifying or separating a gas or gas mixture using a monolithic adsorbent for the separation or purification of gases or gas mixtures, having a cellular structure with open porosity in...
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7114932 |
Valve-free oxygen concentrator featuring reversible compressors
A pivoting vane rotary compressor includes a housing having a generally pear-shaped chamber. A rotor mounted within the chamber defines a main and constricted chamber regions. Reversible intake and...
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6869463 |
Method for rapid activation or preconditioning of porous gas purification substrates
A method is described for rapid and economical activation and/or preconditioning of gas purification substrates by providing forced convection of the preconditioning or activating gas through the...
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6863713 |
Method to adsorb an adsorbate using modified carbonaceous material
An adsorbent composition containing a modified carbonaceous material capable of adsorbing an adsorbate is disclosed, wherein at least one organic group is attached to the carbonaceous material....
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6837917 |
Process for the removal of ethylene oxide from air
A process for removal of ethylene oxide (EO) from ambient air laden with EO is passed through a zeolite-based removal media, which preferrably consists of the acid form of zeolite ZSM-5, herein...
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6660066 |
Ammonia recovery from purge gas
The invention relates to ammonia synthesis loops containing gases, which do not react and would accumulate if they were not purged out. By the present invention ammonia in a purge gas is recovered...
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6660165 |
Method for regenerating inorganic porous particles, method for purifying water, and continuous water purification device
The present invention is to provide a method for regenerating inorganic porous particles, a method for purifying water and a continuous water purification device, which can be easily applied as a...
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6511528 |
Purification of carbon dioxide
Commonly available carbon dioxide may contain unacceptable amounts of compounds containing greater than about ten carbon atoms, sulfur-containing materials, and nitrogen-containing materials which...
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6425939 |
Process for the production of hydrogen using a carbonated adsorbent with selected dubinin parameters
A process for the purification of a gaseous hydrogen flow containing one or more gaseous impurities from the group consisting of carbon monoxide, water vapor, nitrogen, H 2 S, chlorine, C 1 -C 3 ...
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6402819 |
Fresh air filter
The present invention relates to a fresh air filter that comprises a highly air-permissive two- or three-dimensional support made of a cross-linked polymeric foam which includes pores of large...
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6358302 |
Purification of gases using multi-composite adsorbent
The present invention provides for a multi-composite adsorbent mixture which will remove H 2 O, CO 2 and nitrogen oxides and/or hydrocarbons from a feed gas stream. The improvement lies in the use...
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6332916 |
Activated carbon filter and process for the separation of noxious gases
Activated carbon filters containing transition metals, are prepared by (a) exchanging the transition metal with a cellulose ion exchange material to produce a cellulose material containing the...
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6261345 |
Process and apparatus for recovering ammonia
There are disclosed a process for recovering ammonia which comprises installing a shell and multi-tube adsorber which is equipped with plural adsorption tubes each packed inside with an ammonia...
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6224677 |
Gas recovery unit utilizing dual use of gas
A CVD device A is provided which is equipped with a gas introduction part A3 having an inert gas supply part G1 for supplying a diluting inert gas and a cleaning gas supply path G2 for supplying a...
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6136071 |
Process for the recovery of volatile low molecular compounds
A process for recovering volatile, generally bad smelling low molecular, low polar substances called VLC, contained in gas streams, by capturing the same by in contacting the gaseous environment...
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6113673 |
Gas storage using fullerene based adsorbents
This invention is directed to the synthesis of high bulk density high gas absorption capacity adsorbents for gas storage applications. Specifically, this invention is concerned with novel gas...
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6093236 |
Porous pellet adsorbents fabricated from nanocrystals
Pelletized adsorbent compositions and methods of adsorbing toxic target compounds are provided for the destructive adsorption or chemisorption of toxic or undesired compounds. The pelletized...
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6090738 |
Process for the preparation of a molecular sieve adsorbent for selectively adsorbing methane from a gaseous mixture
This invention relates to the manufacture of a molecular sieve adsorbent for selectively separating methane from its gaseous mixture with nitrogen. More particularly, the invention relates to the...
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6027547 |
Fluid storage and dispensing vessel with modified high surface area solid as fluid storage medium
A fluid storage and dispensing system, comprising: a fluid storage and dispensing vessel constructed and arranged for selective dispensing of fluid therefrom; a solid-phase support in the vessel;...
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5997613 |
Gas phase adsorption process utilizing oxidized pitch-based activated carbon fibers
A gas phase adsorption process in which a gas phase containing water vapor or a basic gas is brought into contact with activated carbon fiber to adsorb the water vapor or basic gas. The activated...
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5968232 |
Method for ammonia production
A process for the separation of ammonia dissolved in a gaseous solvent is used to recover ammonia during the production of ammonia from a synthesis gas. The process may be used to extract and...
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5919286 |
PSA process for removel of nitrogen oxides from gas
A process for removing nitrogen oxides, as well as water and carbon dioxide, from gas streams containing at least 0.2 ppm by volume of nitrogen oxides by passing the gas stream through an alumina...
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5897687 |
Ammonia adsorption apparatus
Disclosed is an ammonia adsorption apparatus for removing ammonia contained in a treated gas discharged from a denitrator for decomposing nitrogen oxides present in exhaust gas using ammonia as a...
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5759237 |
Process and system for selective abatement of reactive gases and recovery of perfluorocompound gases
Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture...
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5711926 |
Pressure swing adsorption system for ammonia synthesis
The present invention is directed to a catalytic process for the synthesis of ammonia in an ammonia synthesis reactor wherein a dilute ammonia stream is withdrawn from the reactor and subjected to...
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5669961 |
Method for the purification of noble gases, nitrogen and hydrogen
A method and apparatus for the purification and collection of hydrogen isotopes in a flowing inert gaseous mixture containing impurities, wherein metal alloy getters having the capability of...
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5626650 |
Process for separating components from gaseous streams
The present invention relates to the separation of one or more components from a multi-component gaseous stream. The component(s) being separated are relatively small molecular diameter gas...
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5547492 |
Method for adsorbing and separating argon and hydrogen gases in high concentration from waste ammonia purge gas, and apparatus therefor
A method for recovering argon and hydrogen simultaneously from a feed mixture comprising argon, hydrogen, methane, nitrogen, ammonia, and moisture by passing a two stage adsorption separation...
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5531809 |
Pretreatment layer for CO-VSA
The present invention is an apparatus and method for preferentially adsorbing carbon monoxide from a gas stream containing carbon monoxide in the presence of water and potentially ammonia while not...
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5436687 |
Combination developer/absorber package
A combination developer/absorber package for use in a diazo copy machine. The package includes a hollow package body having a vapor permeable top and bottom. A vessel of liquid ammonia is nested...
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5298231 |
Method for achieving high reaction rates in solid-gas reactor systems
Reaction rates in chemisorption reactions involving solid reactants and gaseous ligands are improved by maintaining optimized solid density throughout the reaction. Methods and apparatus which...
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5289690 |
Refrigerant recycling system
The invention disclosed herein relates to an apparatus for being detachably connected to a chemical or refrigeration system for selectively receiving and dispensing a gaseous refrigerant or...
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5264013 |
Method and apparatus for purification of exit gases from kiln installations
In this method and this apparatus exit gases to be purified from kiln installations are first of all dedusted in a first filter stage and then in at least one further filter stage they are purified...
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5246895 |
Method of making ceramic composites
The invention relates to a method for producing ceramic composites obtained by oxidation of a parent metal to form a polycrystalline ceramic material by providing a filler having a coating of a...
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5234884 |
Adsorbent composition and method of producing same
A precipitate composition comprising a water-insoluble phosphate of at least one metal selected from the group consisting of Ti, Zr and Sn, and a hydroxide of at least one metal selected from the...
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5203888 |
Pressure swing adsorption process with multiple desorption steps
Pressure swing absorption processes are disclosed which employ a standard pressure swing absorption cycle comprising the steps of adsorption, one or more cocurrent depressurization steps for...
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5198128 |
Waste disposal site, in particular for the ultimate disposal of radioactive substances
A waste disposal site, such as an ultimate disposal site for radioactive substances, includes installed waste having hollow spaces remaining therebetween. Packing material fills the remaining...
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5192735 |
Preparation of low chromium active charcoal by freeze drying impregnated charcoal
Activated charcoal, or ASC whetlerite charcoal for use in providing protection against chemical warfare agents, contains chromium VI, which is a known carcinogen, as well as other metal...
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5160512 |
Gas separation process
An improved method for removal of a gas constituent from a gas stream is disclosed employing a composite sorbent material. The gas stream is passed through a bed of solid absorbent particles having...
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5145652 |
Apparatus for the removal of nitrogen burner exhaust
Method for the removal of nitrogen from the exhausts of burners after they are cleaned of dust or sulfur, in which the nitrogen-bearing exhaust gases are reheated by the transfer of heat from the...
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5125935 |
Method for efficiently obtaining an adsorbable gas from a gas containing a low concentration of the adsorbably gas
The method of the present invention is one for efficiently obtaining a condensed adsorbable gas from a gas containing a low concentration of the adsorbable gas by subjecting the original gas to the...
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5100446 |
Crude neon production system
A crude neon production system wherein a small neon-containing stream is taken from a cryogenic air separation plant and processed in a neon column and in a non-cryogenic pressure swing adsorption...
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