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| Number | Title | Issue Date |
| 7503961 | Boiler feed water deaerator method and apparatus A nitrogen sweep stream for use in a deaerator during deaerator operations to disperse and remove oxygen and carbon dioxide from boiler feed water prior to being fed to a boiler. The nitrogen sweep stream substantially reduces the amount of oxygen and carbon dioxide... | 03/17/2009 |
| 7374602 | System and method of water treatment The present invention generally offers a system and a method that allows a vessel to treat water while providing corrosion inhibition. An oxygen stripping gas source produces oxygen stripping gas that may be pumped directly to, preferably but optionally, a venturi i... | 05/20/2008 |
| 7261279 | Device for stirring and aerating a liquid in a treatment vessel A device for stirring and aerating a liquid in a treatment vessel may include a funnel disposed in the upper portion of the vessel to form a passage with the vessel. A duct is connected to the funnel and extends toward the bottom of the vessel and includes an openin... | 08/28/2007 |
| 7255728 | Apparatus and method for degassing liquids Apparatus and method for degassing liquids particularly cationic monomers. Fluid comprising liquid to be degassed together with sweep gas is admitted tangentially into a column (10) and forced down the column by a tubular baffle (16) which defines, wit... | 08/14/2007 |
| 7222821 | Method and apparatus for treating fuel to temporarily reduce its combustibility A method and apparatus are disclosed for treating fuel to temporarily reduce its combustibility, and thereafter restore its combustibility. As used in an aircraft, the method comprises the following steps: (a) treating aircraft eng... | 05/29/2007 |
| 7191983 | Methods and systems for controlling flammability control systems in aircraft and other vehicles Methods and systems for controlling fuel tank flammability control systems are disclosed herein. In one embodiment, a system for use with an aircraft or other vehicle includes a flammability control system and a controller operably coupled to the flammability contro... | 03/20/2007 |
| 7153343 | Fuel deoxygenation system A fuel system for an energy conversion device includes a deoxygenator system with a porous membrane. The deoxygenator includes an oxygen receiving channel separated from the fuel channel by the porous membrane. The capillary forces counteract the pressure differenti... | 12/26/2006 |
| 6981997 | Deaeration of water and other liquids Liquid such as water is deaerated by dissolving stripping gas such as carbon dioxide into the water while maintaining pressure, reducing the pressure, and then feeding the liquid into a vessel wherein a gas space is maintained over said water, wherein the pressure o... | 01/03/2006 |
| 6974546 | Diffuser/emulsifier for aquaculture applications A method of treatment of water in an aquatic environment. Water is first pumped from a reservoir to a first mixing station. An inert gas is introduced into the pumped water at the first mixing station to provide inert gas saturated water, which inert gas saturated w... | 12/13/2005 |
| 6918950 | Apparatus and method for reducing residual solvent levels Apparatus and methods for reducing residual solvent levels in extracted biomass that is contaminated with HFC solvent that includes sparging the biomass extract with a solvent stripping gas such as air or nitrogen are disclosed. Apparatus for carrying out the method... | 07/19/2005 |
| 6846422 | Sludge stripping process and system A method and system for removing volatile organic compounds (VOCs) from sludge advantageously utilizes a stripper for removing the VOCs directly from the sludge to convert the sludge into a non-hazardous material. Preliminary steps of mixing may include addition of ... | 01/25/2005 |
| 6840983 | System and method of water treatment The present invention generally offers a system and a method that allows a vessel to treat water while providing corrosion inhibition. An oxygen stripping gas source produces oxygen stripping gas that may be pumped directly to, preferably but optionally, a venturi i... | 01/11/2005 |
| 6719823 | Polishing systems, methods of polishing substrates, and methods of cleaning polishing slurry from substrate surfaces The invention encompasses polishing systems for polishing semiconductive material substrates, and encompasses methods of cleaning polishing slurry from semiconductive substrate surfaces. In one aspect, the invention includes a method of cleaning a polishing slurry f... | 04/13/2004 |
| 6716273 | Method and device for eliminating oxygen contained in aqueous monomer solutions A continuous process for removing oxygen from aqueous monomer solutions, including flowing an inert gas and a monomer solution in a column-shaped apparatus as a countercurrent, wherein the monomer solution is added at the head of the apparatus, flows through the app... | 04/06/2004 |
| 6521022 | Apparatus and method for reducing residual solvent levels Apparatus and methods for reducing residual solvent levels in extracted biomass that is contaminated with HFC solvent that includes sparging the biomass extract with a solvent stripping gas such as air or nitrogen are disclosed. Apparatus for carrying out... | 02/18/2003 |
| 6344588 | Process for the preparation of urea In the present process for the preparation of urea, an off-gas stream released during the synthesis of melamine in a high-pressure melamine process which consists predominantly of ammonia and carbon dioxide, is introduced into at least one high-pressure s... | 02/05/2002 |
| 6193786 | Portable oil degasification apparatus The present invention provides methods and devices for reducing the concentration of combustible gases in oils. The methods and devices of the invention are of particular use in reducing the concentration of combustible gases in insulating oils used in el... | 02/27/2001 |
| 6176899 | Water treatment process for neutralizing gas supersaturation A method of degassing a volume of supersaturated liquid is provided which comprises introducing a plurality of microbubbles of gas substantially near the bottom of the volume of supersaturated liquid so that the microbubbles percolate up through the volum... | 01/23/2001 |
| 6174506 | Carbon dioxide recovery from an oxygen containing mixture A process for recovering carbon dioxide from a gas containing both carbon dioxide and oxygen wherein a carbon dioxide and oxygen containing gas is first contacted with an alkanolamine solution to produce an alkanolamine loaded with carbon dioxide and oxyg... | 01/16/2001 |
| 5855861 | Method and apparatus for making aqueous chlorine dioxide A method of forming an aqueous chlorine dioxide solution is disclosed which includes reacting in a reaction vessel an acid reaction solution containing a hydroxy carboxylic acid and a companion acid with an alkali metal salt of a chlorite ion. In accordan... | 01/05/1999 |
| 5772731 | Treatment of liquors A process of removing carbon dioxide from a liquor in a vessel comprises the step of continuously passing a portion of the liquor into a sidestream and introducing discrete bubbles of between 0.005 mm and 1.0 mm diameter of nitrogen rich gas into the liqu... | 06/30/1998 |
| 5766321 | Apparatus for reducing dissolved oxygen Disclosed is a dissolved oxygen reducing apparatus which enables supplying a liquid containing very small amounts of dissolved oxygen. The dissolved oxygen reducing apparatus includes a bubbling vessel (24) having a liquid charge inlet (21), a liquid disc... | 06/16/1998 |
| 5565108 | System for the control and retardation of the growth of algae A method of retarding the growth of algae in aqueous solution is disclosed. An aqueous medium is moved along a flow path in a direction terminating at an aqueous solution into which the aqueous medium is added. Before adding said aqueous medium into the a... | 10/15/1996 |
| 5458789 | Removal of organics from aqueous waste streams Apparatus and process for removing relatively low levels of components, particularly organic components found in an aqueous stream in one or more stripping zones located in a process unit. An eductor means extending into each stripping zone is used to pro... | 10/17/1995 |
| 5389126 | Process for removal of components from liquids in batch mode A process for removing components from liquid is disclosed. This process involves batchwise gas-stripping followed by membrane separation treatment of the stripping gas. The stripping step can be carried out by circulating the batch repeatedly around the ... | 02/14/1995 |
| 5314613 | Process and apparatus for oil decontamination A process and apparatus for the decontamination of oil includes providing a jet compressor having a converging section in which high velocity liquid oil compresses a source of atmospheric pressure gas, a central mixing section that intimately mixes the li... | 05/24/1994 |
| 5273572 | Process for removing an organic compound from water A process for removing organic compounds from water is disclosed. The process involves gas stripping followed by membrane separation treatment of the stripping gas. The stripping step can be carried out using one or multiple gas strippers and using air or... | 12/28/1993 |
| 5180403 | Method for vacuum deaeration A method for vacuum deaeration of a dissolved gas in a pure water, the pure water having a specific resistivity of not less than 0.1 MΩ.multidot.cm, in a vacuum degasifier column maintained at a presssure slightly higher than a saturated steam pressure a... | 01/19/1993 |
| 5080695 | Method of removing hydrogen sulfide from liquid sulfur Degasification of liquid sulfur produced by the Claus process to remove hydrogen sulfide. The liquid sulfur is caused to flow continuously through a vessel where it is contacted by a counter-flowing inert gas, thereby stripping hydrogen sulfide from the s... | 01/14/1992 |
| 5015273 | Foam breaker and method An apparatus and method for breaking up a mixture of gas and liquid forming a foam returning from an oil and/or gas well. The foam breaker includes a housing having a bore for receiving the foam and a restriction in the bore for compressing the foam. A pl... | 05/14/1991 |
| 4772319 | Process for treating molten aluminum to remove hydrogen gas and non-metallic inclusions therefrom Hydrogen gas and non-metallic inclusions are removed from molten aluminum by a process comprising the steps of rendering the portion above the surface of molten aluminum in a treating vessel where the molten aluminum is placed, an atmosphere of air having... | 09/20/1988 |
| 4758654 | Method for treating resin in a purge vessel A method for removing unpolymerized gaseous monomers from a solid olefin polymer in a single purge vessel while deactivating Ziegler-Natta catalysts and organometallic catalyst residues present in said solid olefin polymer by utilizing a two diameter purg... | 07/19/1988 |
| 4715869 | Degassing of liquids A rotary device comprising a rotor which comprises (i) a first annular compartment in which is disposed a permeable element, and (ii) a second annular compartment and which is adapted such that a liquid to be degassed flows radially outwards, in counter-c... | 12/29/1987 |
| 4699886 | Method of preparing gas samples from liquids initially containing such gases A method is provided for continuous quantitative analysis of H2 S dissolved in crude oil. The liquid is injected into a mixing chamber 14 in the form of a microsprayed mist meeting a nitrogen stream. The mist conveyed by the nitrogen is injecte... | 10/13/1987 |
| 4613347 | Water deaeration process A process for deaerating water in an upright column immersed in a body of water and equipped at its lower end with an electrical pump which, essentially, provides the water lift in the column, comprises injecting into the upright column, at at least one i... | 09/23/1986 |
| 4612021 | Contacting a gas and a liquid to remove an unwanted gas Sea water containing dissolved oxygen is pumped through a main gas ejector (4) supplied with nitrogen. During flow of the sea water and entrained nitrogen from the main gas ejector (4) to an auxiliary gas ejector (5), part of the entrained nitrogen is dis... | 09/16/1986 |
| 4597833 | Process for the removal of dissolved gas from an aqueous solution of ethylene oxide A process for the removal of gases dissolved in an aqueous solution containing up to about 15% by weight of ethylene oxide and up to about 0.5% by weight of dissolved gases which are selected from carbon dioxide and at least one other compound that is nor... | 07/01/1986 |
| 4547293 | Process for removal of ammonia and acid gases from contaminated waters Contaminating basic gases, i.e., ammonia, and acid gases, e.g., carbon dioxide, are removed from process waters or waste waters in a combined extraction and stripping process. Ammonia in the form of ammonium ion is extracted by an immiscible organic phase... | 10/15/1985 |
| 4365978 | Storage of liquid hydrocarbons in salt dome caverns Liquid hydrocarbons are stored in salt dome caverns containing brine after first stripping the brine of contaminating gases such as oxygen and carbon dioxide by sparging a decontaminating gas such as nitrogen into the brine and removing the nitrogen and t... | 12/28/1982 |
| 4259360 | Deoxygenation of liquids A system for significantly reducing the dissolved oxygen content of a liquid. Liquid is pumped from a supply source to a deoxygenation chamber through a line containing a sparger for injecting a gas, such as nitrogen, as bubbles having an average size of ... | 03/31/1981 |
