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8177886 |
Use of oxygen concentrators for separating N2 from blast furnace gas
A method of continuously removing nitrogen from a blast furnace exhaust stream containing oxygen, nitrogen and unburned hydrocarbons in order to form a supplemental feed to a gas turbine engine...
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8157892 |
Method and system for improved-efficiency air-conditioning
Systems and methods for circulating air in an enclosed environment are disclosed. An inlet can be provided to receive an outside air from outside of the enclosed environment and an air handling...
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8142544 |
Adsorbent bed pressure balancing for a gas concentrator
A system and a method are described for monitoring pressure imbalances in the adsorbent beds of a portable gas concentrator. Using the programmability features found in modern portable...
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8141649 |
Hypoxic fire suppression system for aerospace applications
A fire suppression system and a method for providing fire suppression onboard of an aircraft by rapidly establishing a breathable hypoxic atmosphere onboard of an aircraft, which can be generated...
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8128734 |
Two stage pressure swing adsorption process for producing enriched-oxygen
An improved two stage pressure swing adsorption process for producing enriched oxygen and separating nitrogen or oxygen from a feed air stream. The process utilizes two-stage pressure swing...
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8101133 |
Radial flow reactor
A radial flow reactor is disclosed for use in gas purification, separation or reaction processes and most suitably used in prepurification processes. The reactor has two concentric internal baskets...
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8088197 |
Removal of carbon dioxide from air
The present invention is directed to methods for removing CO2 from air, which comprises exposing sorbent covered surfaces to the air. The invention also provides for an apparatus for exposing air...
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8083836 |
Method and apparatus for extracting carbon dioxide from air
A method and apparatus for extracting CO2 from air comprising an anion exchange material formed in a matrix exposed to a flow of the air, and for delivering that extracted CO2 to controlled...
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8080139 |
Method of anhydrous ethanol production using circulation by multiple towers alternation
The present invention relates to a method of anhydrous ethanol production using circulation by multiple towers' alternation, the procedure includes the steps of heating, adsorption, internal...
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8070853 |
Apparatus and method of providing concentrated product gas
In one aspect, a product gas concentrator is provided. In one embodiment, the apparatus may include: a first process separating absorbable components from a source gaseous mixture, a second process...
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8062613 |
Apparatus and process for isomerizing a hydrocarbon stream
An apparatus and process for isomerizing a hydrocarbon stream rich in a C4 hydrocarbon and/or at least one of a C5 and C6 hydrocarbon which includes a first drier and a second drier; and a reaction...
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8052777 |
Vessel, system, and process for minimizing unequal flow distribution
One exemplary embodiment can be a pressure swing adsorber vessel. The pressure swing adsorber vessel can include one or more walls. Generally, the one or more walls contain an adsorbent bed having...
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8029603 |
Pressure swing adsorption cycle for ozone production
A pressure swing adsorption cycle designed to reduce the variations in ozone concentration, and produce a higher average ozone concentration, in a product gas stream throughout the cycle. The cycle...
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8021464 |
Method and installation for combined production of hydrogen and carbon dioxide
The invention concerns a method for combined production of hydrogen and carbon dioxide from a mixture of hydrocarbons wherein the residual PSA is treated to produce a carbon dioxide-enriched fluid,...
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8020553 |
Ambulatory oxygen concentrator containing a three phase vacuum separation system
An oxygen concentrator comprises an oxygen reservoir and adsorbent columns that each have an inlet, an outlet, and a bed of adsorbent material. The concentrator also comprises an air inlet, an...
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8016918 |
Performance stability in rapid cycle pressure swing adsorption systems
Pressure swing adsorption process for producing oxygen comprising (a) providing at least one adsorber vessel having a first layer of adsorbent adjacent the feed end of the vessel and a second layer...
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8016914 |
Adsorption control method and controller
The present invention provides a method and a control system for controlling an adsorbent bed unit in which an adsorbent bed concentration of an impurity within an adsorbent bed of the adsorbent...
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8012240 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Apparatus and method of providing concentrated product gas
In one aspect, a product gas concentrator is provided. In one embodiment, the apparatus may include: a first process separating absorbable components from a source gaseous mixture, a second process...
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7993431 |
Gas purifier apparatus and method for gas purification
A gas purifier of the present invention includes a purifier in which a gas-purifying agent is packed, wherein a gas is fed into the purifier, and impurities in the gas are removed by a thermal...
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7988765 |
Systems and processes for processing hydrogen and carbon monoxide
In various implementations, various feed gas streams which include hydrogen and carbon monoxide may be processed for conversion to product streams. For example, the feed gas stream may be processed...
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7959720 |
Low mesopore adsorbent contactors for use in swing adsorption processes
The present invention relates to engineered structured adsorbent contactors for use in pressure swing adsorption and thermal swing adsorption processes. Preferably, the contactors contain...
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7954490 |
Method of providing ambulatory oxygen
Concentrated oxygen product gas is produced and delivered to a patient. Product gas is produced by (a) introducing ambient air into a first end of a column containing an adsorbent material that...
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7947120 |
Temperature swing adsorption of CO2 from flue gas using a parallel channel contractor
The adsorption of CO2 from flue gas streams using temperature swing adsorption. Adsorbent contactors are used in the temperature swing adsorption unit that contain a plurality of substantially...
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7931733 |
Method of producing hypoxic environments in occupied compartments with simultaneous removal of excessive carbon dioxide and humidity
A method and a system for providing a hypoxic environment inside an enclosed compartment with simultaneous removal of carbon dioxide and moisture produced by occupants; said method and system...
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7922789 |
Portable gas fractionalization system
A portable gas fractionalization apparatus that provides oxygen rich air to patients is provided. The apparatus is compact, lightweight, and low-noise. The components are assembled in a housing...
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7909913 |
Gas purification by adsorption of hydrogen sulfide
Hydrogen sulfide is removed from a hydrogen rich gas stream using adsorbents having a low loss of carbon dioxide adsorption capacity upon sulfur loading including high purity silica gels, titania...
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7900709 |
Hypoxic aircraft fire prevention and suppression system with automatic emergency oxygen delivery system
An aircraft fire-extinguishing system provides automatic fire prevention and/or suppression simultaneously in fuel tanks, cargo compartments and, when needed, in cabin using injection of hypoxic...
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7892323 |
Hydrogen management in petrochemical process units
The management of hydrogen in hydrogen-containing streams associated with petrochemical process units wherein the hydrogen-containing stream is subjected rapid cycle pressure swing adsorption to...
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7879138 |
Pressure swing adsorption method and system with multiple-vessel beds
Pressure swing adsorption process for the separation of a feed gas mixture comprising (a) providing a pressure swing adsorption system comprising one or more composite beds, each composite bed...
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7875101 |
Hybrid membrane—PSA system for separating oxygen from air
A portable, non-cryogenic, oxygen generation system capable of delivering oxygen gas at purities greater than 98% and flow rates of 15 L/min or more is described. The system consists of two major...
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7871457 |
Carbon dioxide production method
A method of producing a carbon dioxide product stream from a synthesis gas stream formed within a hydrogen plant having a synthesis gas reactor, a water-gas shift reactor, located downstream of the...
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7866315 |
Method and apparatus for controlling the purity of oxygen produced by an oxygen concentrator
An oxygen concentrator comprises a plurality of adsorbent columns, each having an inlet, an outlet and abed of adsorbent material. The oxygen concentrator also includes a vacuum pump for removing...
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7867320 |
Multi-port indexing drum valve for VPSA
The present invention relates to a dual feed and dual vacuum four bed VPSA process for selectively adsorbing a component from a feed stream, e.g., nitrogen from air, to produce an oxygen-enriched...
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7862647 |
Gas adsorption and gas mixture separations using mixed-ligand MOF material
A method of separating a mixture of carbon dioxiode and hydrocarbon gas using a mixed-ligand, metal-organic framework (MOF) material having metal ions coordinated to carboxylate ligands and pyridyl...
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7862645 |
Removal of gaseous contaminants from argon
Method for argon recovery that comprises (a) providing a feed gas mixture comprising argon and nitrogen; (b) contacting at least a portion of the feed gas mixture with a nitrogen-selective...
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7857894 |
Adsorbent bed pressure balancing for a gas concentrator
A system and a method are described for monitoring pressure imbalances in the adsorbent beds of a portable gas concentrator. Using the programmability features found in modern portable...
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7846237 |
Cyclical swing adsorption processes
The concentration of adsorbate in the feed gas to an on-stream bed of a cyclical swing adsorption process is monitored and the data processed to predict the time required to complete the on-stream...
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7837765 |
Systems and methods for supplying auxiliary fuel streams during intermittent byproduct discharge from pressure swing adsorption assemblies
Pressure swing adsorption (PSA) assemblies and hydrogen-producing fuel processing assemblies and/or fuel cell systems including the same. The PSA assemblies include, or are utilized with,...
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7837771 |
Rotary cylinder dual diverter valve
A rotary cylinder valve comprises a valve body, a valve cylinder rotationally mounted within the valve body, and first, second, third and fourth valve seats coupled to the valve body. The valve...
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7833311 |
Temperature-based breakthrough detection and pressure swing adsorption systems and fuel processing systems including the same
Pressure swing adsorption (PSA) assemblies with temperature-based breakthrough detection systems, as well as to hydrogen-generation assemblies and/or fuel cell systems containing the same, and to...
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7828878 |
High frequency PSA process for gas separation
An improved gas separation PSA process, more particularly for oxygen production, utilizing adsorbents of Type X characterized by high frequency (i.e., cycle times of less than 4 s), bed length to...
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7828877 |
Separation of carbon dioxide from other gases
An inventive adsorptive gas separation process is provided capable of producing a purified methane product gas as a light non-adsorbed product gas as opposed to a heavy desorbed exhaust gas...
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7824472 |
Method and apparatus for pressure swing adsorption
In order to provide a new PSA method which can concentrate simultaneously a strong adsorbate such as xenon and a weak adsorbate such as nitrogen in a high concentration with a high recovery...
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7815713 |
Landfill gas purification method and system
The present disclosure provides a method for separating and purifying a landfill gas stream. In one embodiment, the method includes a step of collecting a crude landfill gas stream which includes...
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7799117 |
Gas treatment process by temperature swing adsorption
A thermal sink is used to recover heat from a product gas leaving an adsorption vessel in a thermal swing adsorption process. Heat that is recovered from the product gas is used to heat a...
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7789939 |
Adsorbent bed repressurization control method
A method for controlling an adsorption unit and associated compressor that adjusts the flow rate of a compressed feed stream produced by the compressor so that it increases from a nominal flow rate...
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7771511 |
Oxygen concentration system and method
The present system is an adsorption system for separating air into a concentrated gas component, which has an air supply, a compressor for receiving and compressing the air supply, providing a...
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7771510 |
Fixed bed hypersorber and fractionation of fluids using the same
The present invention relates to a fixed bed hypersorber having moving ports for injecting and withdrawing fluids which can be used for fractionation of gaseous mixtures in a fixed bed filled with...
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7766996 |
Twin blowers for gas separation plants
The present invention relates to a method of reducing or elimination pressure pulsations and noise created by blowers in a gas separation plant. The method employs two identical and 180° out of ...
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7766010 |
Method of controlling the rate of oxygen produced by an oxygen concentrator
A method of providing concentrated oxygen product gas to a patient. The method comprises producing product gas by a vacuum swing adsorption (VSA) process with an oxygen concentrator comprising a...
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