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| Number | Title | Issue Date |
| 8147592 | Using a metallocene to remove oxygen from a stream of gas A filter includes a metallocene for removing oxygen from a gas stream. The filter further includes a support for the metallocene. ... | 04/03/2012 |
| 8128736 | Carbon dioxide production for enhanced oil recovery A method for producing carbon dioxide by the steps of feeding a CO2-rich feed stream containing fuel gas to an oxygenated oxygen-selective ceramic bed to produce a product stream of carbon dioxide, water, and residual oxygen; adding oxygen to this product... | 03/06/2012 |
| 8048201 | Oxygen scavenger and a method for scavenging oxygen An oxygen scavenger is provided. An oxygen scavenger comprises iron, malic acid, and a wicking agent. A method for scavenging oxygen from an enclosed container comprises providing an oxygen scavenger compound comprising iron, malic acid, and a wicking agent, sealing... | 11/01/2011 |
| 7981195 | System for preventing contaminants from reaching a gas purifier The present invention is directed to the prevention of an exothermic reaction in the gas purifier of an ultra-high purity gas system. ... | 07/19/2011 |
| 7837766 | Systems and methods for reducing off-gassed ozone Systems and methods for producing an ozone destructor are disclosed herein. Generally, these systems and methods include an ozone destructor that has a housing defining an air passage duct. In some cases, this air passage duct includes a first chamber and a second c... | 11/23/2010 |
| 7594957 | Method of absorbing oxygen An oxygen-absorbing composition including iron and a soluble tartrate. A method of absorbing oxygen from a closed environment including the steps of providing an oxygen-absorbing composition containing iron and a tartrate, injecting water into the composition, and p... | 09/29/2009 |
| 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 activates the gas separation system, and a power source comprising a mass. A... | 10/07/2008 |
| 7419601 | Nanomesh article and method of using the same for purifying fluids Disclosed herein are articles for removing contaminants from a fluid, such as a liquid or gas, the article comprising carbon nanotubes, which comprise at least one molecule or cluster attached thereto or located therein, wherein the carbon nanotubes are present in t... | 09/02/2008 |
| 7374601 | Air separation system and method with modulated warning flow An inerting system and method characterized by a primary air separation module configured to communicate with an upstream source of pressurized air at elevated temperature for production of a primary downstream flow of nitrogen-enriched air to be delivered to a spac... | 05/20/2008 |
| 7347887 | Oxygen sorbent compositions and methods of using same Composites and methods useful for oxygen sorption and other uses are presented, the composites comprising: (A) one or more crystalline ceramic oxides selected from compounds within general formula (1): AxA′ | 03/25/2008 |
| 7314506 | Fluid purification system with low temperature purifier A system and method for processing a matrix fluid to remove one or more impurities (such as moisture from a process gas). The purifier includes a pre-cooler that receives the matrix fluid and cools the matrix fluid to a second, lower temperature. A container is prov... | 01/01/2008 |
| 7303606 | Oxy-fuel combustion process Production of oxygen-enriched gas streams is disclosed herein. Air streams contact an oxygen-selective mixed conductor particularly a perovskite material whereby oxygen is retained or adsorbed on the perovskite and can be employed in a variety of processes such as i... | 12/04/2007 |
| 7303683 | Microorganism-removing filter medium having high isoelectric material and low melt index binder A filter medium capable of removing microorganisms from a fluid such as water. The filter medium includes particles of activated carbon, particles of a substantially insoluble inorganic material having an isoelectric point greater than the fluid being filtered. A lo... | 12/04/2007 |
| 7300899 | Lithium exchanged zeolite X adsorbent blends A lithium exchanged zeolite X adsorbent blend with improved performance characteristics produced by preparing a zeolite X, preparing a binder which includes highly dispersed attapulgite fibers wherein the tapped bulk density of the highly dispersed attapulgite fiber... | 11/27/2007 |
| 7294172 | Helium recovery A gas recovery system comprising a source of gas having a preselected concentration of a desired component (9), at least one application (1) that adds impurities to said gas, and at least one an adsorption system (6) that purifies said gas to pr... | 11/13/2007 |
| 7255104 | Breathing gas supply system A breathing gas supply system for supplying breathable gas in an aircraft includes an oxygen enriching apparatus which is operable in at least two modes to provide product gas with varying oxygen concentrations. A first feed line feeds more highly enriched product g... | 08/14/2007 |
| 7220697 | Mesoporous carbon molecular sieve and supported catalyst employing the same The present invention is related to a mesoporous carbon molecular sieve, which can be used as a catalyst carrier capable of improving the activity of a supported catalyst and a method of preparing the same. Additionally, the invention is related to a supported catal... | 05/22/2007 |
| 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 in the housing. The adsorbent comprising a carbon based foam monolith... | 02/06/2007 |
| 7169212 | Gas separation process This invention relates to gas separation processes using a Li-rho zeolite, in particular to an air separation process where the Li-rho zeolite is an oxygen selective adsorbent. ... | 01/30/2007 |
| 7160367 | PSA with adsorbents sensitive to contaminants Disclosed embodiments address contaminant management challenges that arise during production of desirably contaminant free product fluid in the operation of PSA equipment, and further address the more serious challenges that arise under intermittent operation of PSA... | 01/09/2007 |
| 7160360 | Purification of hydride gases Purification material for removing a contaminant from an impure hydride gas comprising an adsorbent comprising a reduced metal oxide on a porous support and a desiccant. The porous support may be selected from the group consisting of activated carbon, alumina, silic... | 01/09/2007 |
| 7125498 | Oxygen-absorbing compositions and method An oxygen-absorbing composition including iron and a soluble tartrate. A method of absorbing oxygen from a closed environment including the steps of providing an oxygen-absorbing composition containing iron and a tartrate, injecting water into the composition, and p... | 10/24/2006 |
| 7101415 | Methods for regenerating process gas purifier materials A continuous method of producing a process fluid gas from a feed stream that includes the process fluid and impurities. The method includes: (a) providing a first and second vessel, each vessel containing one or more regenerable purifier materials for removing at le... | 09/05/2006 |
| 7081153 | Gas generating system and method for inerting aircraft fuel tanks The present invention provides a system and method for generation of nitrogen enriched air for inerting aircraft fuel tanks. One embodiment of the present invention includes a duct assembly; a primary heat exchanger; a gas generating system heat exchanger; a first t... | 07/25/2006 |
| 7017757 | Mechanically stable, porous shaped activated carbon article and filtering system The invention relates to a mechanically stable, porous shaped activated carbon article having a first three-dimensional framework structure based on carbonized resin, a second three-dimensional inorganic framework structure comprising ceramic material and/or baked r... | 03/28/2006 |
| 6997970 | Oxygen/inert gas generator A gas generation method and apparatus, capable of use in an aircraft, generates oxygen with at least one On Board Oxygen Generating System (OBOGS) and generates an inert gas with at least one On Board Inert Gas Generating System (OBIGGS) and selectively supplies an ... | 02/14/2006 |
| 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 intermolecularly bound TEC units, said units further comprised of at least one m... | 01/24/2006 |
| 6962617 | Method of removing mercury from exhaust gases Efficient removal of mercury from the exhaust gases of an industrial process or combustion process can be achieved using an adsorbent that can be regenerated by a simple and efficient method. The mercury is contacted with a sorbent material, the sorbent material bei... | 11/08/2005 |
| 6955711 | Method and system for separating gas Component contained in a gas mixture can be separated based on a PSA method and recovered with high purities at the same time, the system is simple, the system cost is low, and the operation is easy and may be used for separating oxygen and nitrogen from air or for ... | 10/18/2005 |
| 6927184 | Method of producing microfiber nonwovens that contain cycloolefin polymers Microfiber webs comprising at least one cycloolefin polymer are produced by melt-blowing. ... | 08/09/2005 |
| 6923844 | Gas separation method and device A gas separation method and apparatus that recovers efficiently principal gas components from a feed gas that includes a plurality of components, and enables supplying the product gases continuously at a stable flow rate and component concentration. A first separati... | 08/02/2005 |
| 6918948 | Process for use of molecular sieve adsorbent blends A Process for the production and uses of a molecular sieve adsorbent blend product with improved performance characteristics produced by preparing a zeolite powder, preparing a highly dispersed attapulgite fiber binder, mixing the zeolite powder with the highly disp... | 07/19/2005 |
| 6916359 | Ozone production processes Methods of providing ozone at a selected pressure above atmospheric pressure include supplying a purge gas supply (22) pressurized above the selected pressure to at least one ozone adsorption apparatus (12); desorbing ozone from the ozone adsorption ap... | 07/12/2005 |
| 6916358 | Adsorbent for separating nitrogen from mixed gas of oxygen and nitrogen An adsorbent for separating nitrogen from a mixed gas of oxygen and nitrogen is MSC wherein an oxygen and nitrogen separation ratio α and a ratio (t95/t50) of a time t50 required for adsorbing 50% of the oxygen equilibrium adsorptio... | 07/12/2005 |
| 6913636 | Low power nitrogen enriched air generation system An inerting system provides air with reduced oxygen content by flowing and directing air through an air separation module. Optimal working pressure for the air separation module is obtained with two compressors. A first compressor elevates air from the aircraft cabi... | 07/05/2005 |
| 6911065 | Method and system for supplying high purity fluid A fluid purifying apparatus that includes a manifold that includes a first branch and a second branch, a first check valve coupled to the first branch of the manifold, and a purifier unit that includes a first end and a second end, wherein the first end is coupled t... | 06/28/2005 |
| 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. Furthermore, methods to increase the adsorption capacity of a carbonaceo... | 03/08/2005 |
| 6835231 | Adsorption process and apparatus for nitrogen production and drink dispensing device making use of the apparatus In a process for the production of nitrogen by adsorption on carbons or similar molecular sieves contained in a cylinder (2), the amount of Q1 of nitrogen obtainable from the cylinder at the required purity at the cylinder pressure Pp is calculated; co... | 12/28/2004 |
| 6824589 | Materials and methods for the purification of inert, nonreactive, and reactive gases Regenerable gas purifier materials are provided capable of reducing the level of contaminants such as oxygen and water in an inert, nonreactive or reactive gas stream to parts-per-billion levels or sub-parts-per-billion levels. The purifier materials of this inventi... | 11/30/2004 |
| 6767386 | Method and apparatus for producing nitrogen CMS adsorbents having suitable indexes are used to improve greatly the performance of nitrogen-producing apparatuses where nitrogen is obtained from the air with a PSA method, so as to improve the efficiency of nitrogen production. A nitrogen PSA apparatus is formed... | 07/27/2004 |
