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8182576 |
Apparatus and method for biogas purification
The present invention is a biogas processing system having a compressor having a biogas input and output, a pump having a water input and output, a scrubber tower having a mixing chamber connected...
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8177883 |
Container with controlled atmosphere
A container having a plurality of walls, and at least one inlet and/or outlet, said container including an apparatus for controlling the composition of gases within the container, the apparatus...
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8141411 |
Method for determining a low cylinder pressure condition for a gas chromatograph
A method for determining a low cylinder pressure condition of a gas chromatograph includes providing gas from the cylinder to an inlet of the gas chromatograph. In particular, the gas is provided...
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8105534 |
Process and system for purifying gases
A process and system for purifying an impure gas to produce a purified gas in a gas purification system and protecting the system from damage by a) passing a portion of a first gas stream into a...
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8070852 |
Oxygen partial-pressure control unit and method of gas supply
The oxygen partial pressure control unit includes a gas purification section for purifying the gas having the oxygen partial pressure controlled within a range of from 0.2 to 10−30 atm, and a t...
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8007567 |
Apparatus and method for biogas purification
The present invention is a biogas processing system having a compressor having a biogas input and output, a pump having a water input and output, a scrubber tower having a mixing chamber connected...
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7931740 |
Cyclone separator
Systems and methods for separating contaminants in a contaminated airstream are described. In one embodiment, a contaminated airstream is received and a vortex is created that separates the...
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7905947 |
Method and apparatus for removing contaminates from air
A filter assembly comprising a housing having an air inlet and an air outlet and a filter chamber disposed between the inlet and the outlet, the housing having an air flow path there through. A...
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7842122 |
Gas remover apparatus and method
A gas remover apparatus suitable for electrical substation high-voltage transformer load tap changers and similar oil-filled equipment removes potentially hazardous and destructive gases from the...
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7837761 |
Portable oxygen concentrator
A portable oxygen concentrator includes a reservoir adapted to store oxygen-enriched gas, a delivery valve adapted to communicate with the reservoir, a pressure sensor adapted to measure a...
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7749312 |
Air conditioning system
An air conditioning system comprising a gas-impermeable wall defining a space for air conditioning, and a selective separating member disposed in the wall as a part of the wall, having a function...
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7601202 |
Method and device for reducing the carbon dioxide concentration in air
The invention relates to a method for reducing the carbon dioxide concentration in air of a closed or partially closed unit of space. The inventive method may comprise the steps of removing an air...
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7537641 |
Natural gas treatment process for stimulated well
A process and equipment for treating natural gas produced by a well that has recently been stimulated, and that contains an undesirably high concentration of the fracturing gas used to stimulate...
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7517388 |
Air separation membrane module with variable sweep stream
A gas-separation module allows a sweep gas to be introduced at selectively variable locations, and in selectively varying amounts, along the length of the module. The sweep gas enters the module...
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7455721 |
Device and method for humidifying a gas flow
An apparatus for humidifying a gas stream includes a humidifier device having at least one membrane permeable to water vapor. The gas stream and a humid gas stream flow through a humidifier device,...
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7396390 |
Oxygen enrichment apparatus
An oxygen enrichment apparatus includes an oxygen enriching unit for generating oxygen-enriched air and a discharge unit for discharging the oxygen-enriched air transferred from the suction unit....
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7396383 |
Membrane-based reservoir dryer
A device and method for preventing ingression of contaminants and moisture and for removing moisture from a fluid reservoir, the device comprising a fluid reservoir for supporting a fluid therein,...
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7326269 |
NBC filtration unit providing unfiltered and filtered air paths
A filtration unit for use with an environmental control unit (ECU), usually a portable ECU, which includes at least two air flow paths wherein at least one of the air flow paths allows for use of...
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7316734 |
Volatile organic compound treatment apparatus
A volatile organic compound treatment apparatus including an adsorber coming into contact with a gas to be treated and adsorbing volatile organic compounds; a plurality of pairs of electrodes,...
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7097689 |
Process and system for purifying gases
A process and system for purifying an impure gas to produce a purified gas in a gas purification system and protecting the system from damage by a) passing a portion of a first gas stream into a...
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7087101 |
Method of controlling a gas adsorption apparatus
A method of controlling a gas adsorption apparatus including a sieve bed containing molecular sieve bed material, the bed being cyclically operable in a charge mode to adsorb non-product gas from...
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7025801 |
Method for controlling a unit for the treatment by pressure swing adsorption of at least one feed gas
The treatment unit comprises N adsorption units, N being greater than or equal to 1, operating on a parametrized cycle split uniformly into at most N phase times. Further more, use is made of a...
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6969413 |
Exhaust gas filtering system having particulate filter for internal combustion engine
A flow rate of gas supplied to a diesel particulate filter is increased when it is determined that rapid combustion of collected particulates, which are collected by the particulate filter, is...
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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...
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6733568 |
Method of controlling a plant for processing a gas by adsorption and corresponding processing plant
A method of controlling a plant for processing a gas by adsorption, with N adsorbers R1 to R0 and variable N phase times. The method utilizes a mobile parameter for identifying the operating state...
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6716406 |
Control system for a photocatalytic air purifier
In an air conditioning system which includes a catalytic air purifier, a control system is provided for sensing the level of predetermined conditions in a space and for responsively modulating the...
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6712876 |
Oxygen concentrator system with altitude compensation
An oxygen concentrator system with altitude compensation includes at least one oxygen concentrator sub-system and a plenum subsystem. The at least one oxygen concentrator sub-system produces oxygen...
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6471750 |
Gas cabinet assembly comprising back migration scrubber unit
A gas containment assembly including a containment enclosure defining an enclosed interior volume, with an exhaust inlet and an exhaust outlet for flow of exhaust gas into the enclosed interior...
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6383256 |
Molecular sieve type gas separation apparatus
A molecular sieve type gas separation apparatus (10) for separating product gas from a gas supply (14) includes at least one sieve bed (11-13) which during an adsorption charge phase of a cycle,...
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6368393 |
Fan filter unit for cleanroom
A fan filter unit for use in cleanrooms is provided, which decreases efficiently the concentration of chemical substance existing in the atmosphere while the expansion of the air circulating space...
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6364932 |
Cold gas-dynamic spraying process
The present invention provides an improved cold gas-dynamic spraying process utilizing a carrier gas and small-diameter particulates whereby the particulate-laden carrier gas is directed to a...
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6338823 |
Gas chromatograph
A gas chromatograph has a pressure sensor measuring a pressure in a sample introduction part, a flow control valve controlling carrier gas flow rate, a flow sensor measuring a flow rate of the...
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6277174 |
Low pressure ratio VPSA plant tuning and balancing system
The invention maintains a nearly constant cycle pressure ratio along with a balancing of the adsorbent vessel effluents in a pressure swing adsorption process. The invention monitors cycle pressure...
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6277173 |
System and method for discharging gas
A system for discharging gas emitted from an apparatus or facility having a vacuum pump which sucks the gas emitted from the apparatus or facility while being supplied with a gas other than the...
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6273936 |
Process and plant for producing a variable gas output
In this process, the apparatus for separating the feed gas is connected to the delivery side of at least one variable-rotation-speed compressor, whose speed is controlled on the basis of the...
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6251167 |
Machine and process for removing dissolved gasses from liquids
An enclosed tank with a liquid inlet, a liquid outlet, a gas inlet, and a gas outlet. A liquid is forced to flow turbulently through the tank. Simultaneously a scrubbing gas is pumped through the...
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6223789 |
Regulation of vapor pump valve
A vapor recovery system employs a sensor apparatus for determining the actual content of hydrocarbon in the effluent vapor stream. The vapor flow of the hydrocarbon effluents is regulated by...
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6197090 |
Method and apparatus for recovering a gas from a gas mixture
An object of the present invention is to provide a method for recovering a gas using a semipermeable membrane in an apparatus having a simple structure. The method is capable of maintaining a...
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6120580 |
Method for testing systems designed for NOx reduction in the combustion of carbonaceous fuels
A method for the in-situ predetermination of the effects of NOx reduction systems on selected components. This determination can yield quick, inexpensive and accurate results for a number of...
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6030437 |
Gas purifier
In a gas purifier, a gas flow is generated by a fan (15) and passed through a filter arrangement (14). A difference (SF) is measured (16, 19) between pollution levels in the gas flow before and...
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6000163 |
Photographic rifle scope apparatus and method
A telescopic firearm scope/sight which is fully integrated with a compact digital camera, and which has size, shape and weight characteristics that are substantially the same as those of a...
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5989313 |
Method for operation of an air prepurifier which takes into account inlet air conditions
A pressure swing adsorber (PSA) air prepurifier includes at least a first adsorber and a second adsorber and a controller for controlling air feed to the first adsorber and the second adsorber. The...
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5980608 |
Throughflow gas storage and dispensing system
An apparatus for storage and dispensing of a gas, comprising a gas storage and dispensing vessel holding a physical sorbent medium and gas adsorbed on the physical sorbent medium, wherein a carrier...
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5976373 |
Removal of hydrogen sulfide from anaerobic digester gas
The effluent gas stream from anaerobic waste water treatment digesters is treated to remove trace amounts of hydrogen sulfide and other contaminants. The chemical equation involved relies on the...
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5922130 |
Spray booth for applying coatings to substrate
A spray booth includes an outer enclosure in which the temperature and humidity of a fluid (such as air) is not controlled and a fluid handling unit within this enclosure, which circulates and...
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5917135 |
Gas concentration sensor and control for oxygen concentrator utilizing gas concentration sensor
An acoustic oxygen sensor is provided which can be used in the output lines leading from the sieve beds. This sensor can be used in communication with a microprocessor to control the production and...
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5906672 |
Closed-loop feedback control for oxygen concentrator
An oxygen concentrator is provided which has a first molecular sieve bed connected to a four-way valve (i.e., a cross-over valve) which either joins the sieve bed to a pressurized air source...
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5888271 |
Ozone storing method and ozone storage system
An ozone storage system which allows energy required for producing and storing ozone to be reduced and which supplies ozone as stored to an ozone consumer stably in continuation. The system...
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5865877 |
Method and apparatus for supplying a pressurized diver's breathing gas for underwater divers
A system that includes an equipment package for separating nitrogen from air to produce enhanced oxygen air for use by divers. The package is combined with a pressure storage tank for air that is...
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5858064 |
Oxygen enriched air generation system
A system for generating oxygen enriched air includes a compressed air supply for supplying compressed air and a permeable membrane gas separation system for separating a nitrogen gas component and...
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