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Class 95/52 - Water vapor permeates barrier


Subclass of Class 95 - Gas separation: processes
Definition: Process in which water (H2O) vapor
No. of patents: 246
Last issue date: 03/20/2012


1              
NumberTitleIssue Date
8137436Humidifier membrane
A passive humidifier membrane includes polyolefin with a plurality of pores, wherein the average pore size of the plurality of pores is 0.05 μm to 0.4 μm as established by a PMI Capillary Flow Porometer. The humidifier membrane is virtually airtight while providin...
03/20/2012
8066801Sweep air system for membrane air dryer
A membrane dryer includes a shell having an inner tube and an outer tube and a bundle of hollow fibers supported in the shell. A dryer air inlet into the hollow fibers and a sweep air outlet from the inner tube are at a first end of the shell. A dryer air outlet int...
11/29/2011
7972416Method and apparatus for humidifying air with water vapor extracted from moisture-laden flue gas
A method and apparatus for humidifying air in which the first side of a permselective water transport membrane is contacted with water vapor laden flue gas from a combustion process having a first water vapor partial pressure and a first temperature and at least a p...
07/05/2011
7879137Lithographic projection apparatus, purge gas supply system and gas purging method
A lithographic projection apparatus (1) includes a support configured to support a patterning device (MA), the patterning device configured to pattern the projection beam according to a desired pattern. The apparatus has a substrate (W) table configure to hol...
02/01/2011
7819943Method for dehumidifying room air
A method of exchanging water-water vapor between a first air stream and a second air stream includes making a third air stream, the flow velocity of which is regulated, flow through first and second intermediate volumes without cooling or heating the third air strea...
10/26/2010
7819944Method of dehydration, dehydrating apparatus, and membrane reactor
A dehydration method by which water is selectively separated from a water-containing mixture 31 with a separation membrane. The separation membrane is a DDR type zeolite membrane 2. The dehydration method includes bringing the mixture 31 into co...
10/26/2010
7789940Lithographic projection apparatus, purge gas supply system and gas purging method
A lithographic projection apparatus (1) includes a support configured to support a patterning device (MA), the patterning device configured to pattern the projection beam according to a desired pattern. The apparatus has a substrate (W) table configure to hol...
09/07/2010
7753991Water transport method and assembly including a thin film membrane for the addition or removal of water from gases or liquids
A water transport assembly, is provided including a housing having a first chamber therein, which is accessible through an opening in the housing. The housing additionally includes a sample inlet port and a sample outlet port, both of which are in fluid communicatio...
07/13/2010
7731779Method for processing landfill and other stranded gas containing commercial quantities of methane and contaminated by carbon dioxide, nitrogen and oxygen into a pipeline or vehicle quality natural gas product
Stranded natural gas, when contaminated by difficult to remove constituents such as Nitrogen and Oxygen, has long been considered uneconomical to process into pipeline quality gas and is abandoned or utilized in other energy applications where economically viable. L...
06/08/2010
7678177Membrane air dryer and sweep valve
A membrane air dryer includes a proportioning valve for providing sweep air to the dryer. The valve may be located in an easily accessible location and may be oriented so that the movable valve element extends transverse to the length of the shell. The valve may be ...
03/16/2010
7637985Dry compressed air supply module
A dry compressed air module is provided for attachment to the frame of commercial vehicle. The dry compressed air module includes a shell, an air compressor, an air dryer, and a reservoir. The air compressor, the air dryer, and the reservoir are disposed on the shel...
12/29/2009
7435284Parallel-plate diffusion gas dehumidifier and methods for use
A parallel-plate diffusion gas dehumidifier has a treatment zone having at least one water-permeable membrane. The gas dehumidifier includes an untreated gas inlet, a treatment zone bounded by water-permeable membranes, a support structure for the membranes, access ...
10/14/2008
7427312Integrated degassing and debubbling apparatus
An apparatus for removing gas bubbles from a fluid includes a fluid inlet and a separation chamber that is in fluid communication with the fluid inlet. The separation chamber has first and second end portions, with the first end portion being operably oriented gravi...
09/23/2008
7404843Gas separation membrane module assembly
A gas-separation membrane module assembly and a gas-separation process using the assembly. The assembly includes a set of tubes, each containing gas-separation membranes, arranged within a housing. The housing contains tube sheets that divide the space within the ho...
07/29/2008
7404848Humidifier and a method for producing the same
A humidifier and a method for producing it can reduce gas leakage through inside the surfaces of humidifying membranes or through interfaces between the humidifying membranes and separators. The humidifier includes water permeable humidifying membranes and gas separ...
07/29/2008
7396383Membrane-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, a fluid reservoir opening for allowing an exchanging of air between a...
07/08/2008
7393390Hollow fiber membrane air drier
Air is introduced from an intake chamber into a plurality of hollow fiber membranes in a casing. The casing is connected to a vacuum pump via a three-way valve and water vapor in air is evacuated through the membranes. Dehumidified or dried air is discharged from a ...
07/01/2008
7371357Process for removal of pollutants
A process for the removal of pollutants from a combustion process and, more particularly, a process for removing pollutants such as carbon dioxide, mercury, sulphur dioxide, nitrogen compounds and oxygen compounds from a combustion process. The process includes the ...
05/13/2008
7361206Apparatus and method for water vapor removal in an ion mobility spectrometer
The present invention is directed to an apparatus and a method for continuously removing water vapor from a closed loop, re-circulated gas flow in an ion mobility spectrometer using a water permeable membrane, having a first side and a second side opposite the first...
04/22/2008
7361211Moisture exchange module having a bundle of moisture-permeable hollow fibre membranes
A moisture exchange module has a bundle of moisture-permeable hollow fiber membranes and at least one line element for supplying a gas stream that flows through the hollow fibers in an inner flow. The at least one line element opens out into an inflow region, which ...
04/22/2008
7357830Device for dehumidifying room air
A device for dehumidifying room air has a chamber consisting of at least one first cavity (1) and at least one second cavity (2). The cavities are separated by at least one water-permeable and/or water-vapor-permeable structure (3), these struct...
04/15/2008
7351275Carbon monoxide production process
The present invention provides for a process for producing carbon monoxide. A feed gas stream of hydrogen, carbon monoxide and carbon dioxide is directed to a membrane unit which separates the feed gas stream into two streams. The stream containing carbon monoxide i...
04/01/2008
7344576Conditions for fluid separations in microchannels, capillary-driven fluid separations, and laminated devices capable of separating fluids
Methods of separating fluids using capillary forces and/or improved conditions for are disclosed. The improved methods may include control of the ratio of gas and liquid Reynolds numbers relative to the Suratman number. Also disclosed are wick-containing, laminated ...
03/18/2008
7331376Stackable energy transfer core spacer
A stackable spacer element for use in a energy recovery core formed by stacking a plurality of relatively thin energy transfer media (e.g. sheets, panels, or plates (un-perforated exchanger sheets) so as to define a plurality of stacked energy transfer stages provid...
02/19/2008
7332017Method and apparatus for separation of moisture from fluids
Apparatus and methods useful for removal or reduction of moisture from fluids are described. In one embodiment the apparatus comprises a moisture separation unit comprising a thermally regenerable moisture adsorption material having feed and waste sides, and means f...
02/19/2008
7323033Nanostructured surfaces having variable permeability
A nanostructured substrate is disclosed having a plurality of substrate openings disposed between the nanostructures on the substrate. When a desired fluid comes into contact with the substrate, at least a portion of the fluid is allowed to pass through at least one...
01/29/2008
7311760Temperature-humidity exchanger
Provided is an inexpensive temperature-humidity exchanger having reliably gas-sealed gas manifolds and delivering a gas at high pressure and high dew-point temperature. Upper and lower seal portions surrounding gas manifolds to which the gas is supplied or from whic...
12/25/2007
7276105Separation of water from Fischer-Tropsch product
A method for separating water from a Fischer-Tropsch reactor product stream in a cost effective and energy efficient manner which comprises feeding a Fischer-Tropsch product stream to a separation membrane, preferably a ceramic membrane, and recovering water vapor f...
10/02/2007
7273026Roller follower body
The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i...
09/25/2007
7258329Reactant gas humidification apparatus and reactant gas humidification method
A reactant gas humidification apparatus includes a first separator provided on one surface of a water permeable membrane and a second separator provided on the other surface of the water permeable membrane. The first separator has first and second flow fields on bot...
08/21/2007
7255792Method for modifying an organic composition
There is provided a process for modifying a first organic composition comprising (i) at least one first solvent, (ii) at least one solute, and (iii) optionally, at least one second solvent to produce a modified organic composition in which the concentration of the a...
08/14/2007
7252700Mobile gas separator system and method for treating dirty gas at the well site of a stimulated gas well
A method and mobile system for cleaning dirty gas from a newly stimulated gas well. The entire system is supported on a trailer or other mobile support so that it can be driven from well site to well site for short-term, post-stimulation use only. The system compris...
08/07/2007
7247191Crosslinked and crosslinkable hollow fiber membrane and method of making same utility
A composition of and a method of making high performance hollow fiber membranes is described. The membranes have a high resistance to plasticization by use of a predetermined amount of crosslinking. The preferred polymer material for the membrane is a polyimide poly...
07/24/2007
7201225Conserving components of fluids
A cavitation device is used to heat, concentrate and recycle or otherwise reuse dilute and other oil well fluids, brines and muds, and solution mining fluids, all of which commonly contain ingredients worthy of conservation. The cavitation device is powered by a Die...
04/10/2007
7194197Nozzle-based, vapor-phase, plume delivery structure for use in production of thin-film deposition layer
A vapor deposition source including a crucible configured to hold a quantity of molten constituent material and at least one nozzle to pass vapor evaporated from the molten constituent material out of the crucible. ...
03/20/2007
7188480Membrane desiccation heat pump
There is provided a system for pumping thermal energy. The system includes (a) a heater for heating a liquid, (b) a gas-liquid contactor for adding vapor from the liquid to a process gas to produce a vapor-containing gas, and (c) a membrane permeator for removing th...
03/13/2007
7179322Oxygen and nitrogen enriched atmospheres in aircraft
A method of supplying oxygen rich air to the passengers and crew on board a passenger aircraft by use of a highly permeable oxygen enrichment unit, wherein the fiber tubes of the hollow fiber membranes used to separate normal air into oxygen rich and nitrogen rich f...
02/20/2007
7169213Multi-channel cross-flow porous device
A multi-channel modular device (10) processes between two fluid streams of different compositions. The device (10) includes a porous body (150) having a first plurality of feed-flow pathways (110) disposed in the body (150) for tra...
01/30/2007
7166148Gas separation membranes
A method of producing composite, hollow fibre gas separation membranes, wherein external surfaces of the porous hollow fibre tubes used in the construction of the membranes are subjected to a modification technique before the external surfaces are coated with a thin...
01/23/2007
7156379Fuel cell-use humidifier
An object of the present invention is to provide a humidifying apparatus capable of improving the humidification efficiency while lowering the pressure loss of gas even when a low-pressure gas is used, and is suitably usable for fuel cells. The present invention rel...
01/02/2007
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