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7611633 |
Method and device for separation of a fluid, in particular oil, gas and water
A method for separation of fluid, in particular oil, gas and water, in connection with the extraction of such a fluid from formations under the surface of the earth or the sea bed. The fluid is...
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7578941 |
Length-based liquid-liquid extraction of carbon nanotubes using a phase transfer catalyst
The present invention is generally directed to new liquid-liquid extraction methods for the length-based separation of carbon nanotubes (CNTs) and other 1-dimensional nanostructures. In some...
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7575690 |
Recycling hydrocarbon hydraulic stimulation fluid
Hydrocarbon stimulation fluids are often used to increase the permeability and productivity of oil and gas reservoirs. The fluid itself is made up of a mixture of hydrocarbons and various chemicals...
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7572382 |
Recycling hydrocarbon hydraulic stimulation fluid
Hydrocarbon stimulation fluids are often used to increase the permeability and productivity of oil and gas reservoirs. The fluid itself is made up of a mixture of hydrocarbons and various chemicals...
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7569615 |
Alkoxylated dendrimers and use thereof as biodegradable demulsifiers
Disclosed is the use of alkoxylated dendrimers for breaking oil/water emulsions. The alkoxylated dendrimers have a molecular weight of from 2400 to 100 000 g/mol and have been alkoxylated with C 2...
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7540936 |
Oil/water separation system
An evaporator for receiving waste fluid stream and producing separate streams of an evaporated fluid and a condensate liquid for use in industrial waste treatment has a curved pathway bounded by a...
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7517458 |
Process obtaining landfill disposable wasted from hydrocarbon containing sludge
A method of processing oily sludge to remove a substantial proportion of the water and hydrocarbon content therefrom to form a solid cake of waste material that is suitable for disposal in land...
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7514005 |
Method of processing drilling fluid
A method for processing drilling fluid comprising an oil and water emulsion and solid material includes breaking the emulsion into an oil phase and a water phase, increasing the surface area of the...
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7507344 |
Method for recycling of oil based drilling fluid contaminated with water and water contaminated with oil based drilling fluid
A mobile apparatus and method for recycling an invert emulsion based drilling fluid, in which the invert emulsion based drilling fluid includes an oleaginous component and an aqueous component. The...
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7497954 |
Apparatus for separation of water from oil-based drilling fluid and advanced water treatment
An apparatus for separating water from oil-based drilling fluid includes an separation tank, a chemical treatment apparatus having one or more de-oiling polymer preparation tanks, and a dissolved...
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7455763 |
Recycling process for demetalization of hydrocarbon oil
A recycling process for the demetalization of hydrocarbon oil comprises recycling the following steps: a demetalizing composition for hydrocarbon oil or an aqueous solution thereof is sufficiently...
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7442311 |
Emulsion and effluent treatment processes
An emulsion and affluent process which treats and breaks very tight emulsions and separates dissolved solids from associated fluids produced in industry, whereby solids and fluids are separated...
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7431845 |
Method of clarifying oily waste water
A method of clarifying oily waste water comprising adding to the waste water an effective clarifying amount of one or more demulsifiers selected from the group consisting of dendritic polyamines,...
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7416671 |
Separation and recovery of bitumen oil from tar sands
A process for the separation of bitumen oil from tar sands and the like. Slurry is supplied to a mixing chamber of a jet pump at an input end of the process. The slurry is agitated within the jet...
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7404903 |
Drill cuttings treatment system
A process for the separation of oil from invert mud drill cuttings. Invert mud drill cuttings are supplied to a mixing chamber of a jet pump. The invert mud drill cuttings are agitated within the...
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7384562 |
Treatment of brown grease
The invention is a process for treatment of brown grease, where the brown grease comprises water, food solids and free-oil. This process starts with the collection of the brown grease into a...
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7374690 |
Processes for removing oil from solid wellbore materials and produced water
Processes for removing oil from a solid wellbore material such as drill cuttings or water such as produced by a subterranean formation include contacting the solid material/water with an...
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7351342 |
Method for recovering fluorine-containing emulsifier
An aqueous solution containing a fluorine-containing emulsifier in a low concentration of at least 1 ppm by mass and at most 1% by mass (e.g., coagulation waste water after an emulsion...
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7291275 |
Method for clarifying industrial wastewater while minimizing sludge
Methods are described for removing contaminates from aqueous industrial wastewater process streams, specifically industrial laundries to yield a less contaminated aqueous effluent for discharge to...
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7264729 |
Process for reducing contaminants in condensate resulting from the conversion of bauxite to alumina
This invention relates to a process for reducing the contaminants in condensate resulting from the conversion of bauxite to alumina.
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7244364 |
FCC-CFD cat' fine desalting: a method and system for separating hydrocarbons and extracting catalyst fines from a slurry oil/catalyst fines/diluent mixture
The present invention comprises a method for separating hydrocarbons from catalyst fines in a slurry oil/catalyst fines/diluent mixture (SCDM) comprising the steps of removing SCDM from a slurry...
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7217779 |
Phosphoric ester demulsifier composition
A phosphoric ester demulsifier composition prepared by reacting one or more alkylphenol-formaldehyde resin alkoxylates or one or more polyalkylene glycols, or a mixture thereof, with about 0.001 to...
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7160470 |
Method of clarifying industrial laundry wastewater using cationic dispersion polymers and anionic flocculent polymers
Methods are described for removing contaminates from aqueous industrial wastewater process streams, specifically industrial laundries to yield a less contaminated aqueous effluent for discharge to...
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7157007 |
Vertical gas induced flotation cell
A system for separating oil and/or oily coated solids from an oily water mixture. The system includes an upright vessel having an inlet for introducing oily water in a horizontal pattern. The...
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7034193 |
Method for purifying spent acid
A method for purifying a spent acid catalyst from an acid catalyzed chemical reaction that generates a mixture of a product, spent add and tar, includes the steps of separating the mixture of...
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7033504 |
Method for recovering water soluble surfactants
Disclosed is a method for recovering and re-employing ionic surfactants from solutions, dispersions and emulsions of water and liquid hydrocarbons, by the addition of a second non-aqueous polar...
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7026363 |
Alkoxylated polyglycerols and their use as demulsifiers
The present invention relates to the use of alkoxylated polyglycerols preparable by polycondensation of glycerol and subsequent alkoxylation for demulsifying water-oil emulsions, in particular in...
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7014774 |
Method of treating oil-containing waste water
A method of treating an oil-containing waste water includes adding, where the waste water has been adjusted to have a pH between eight and twelve and have a temperature not higher than 50° C., a...
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7014773 |
Demulsification of emulsions by socillatory mixing
The invention includes a method for demulsification of water-in-oil emulsions, oil-in-water emulsions, and mixtures of water-in-oil and oil-in-water emulsions by oscillatory mixing of the emulsions.
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7008544 |
Hydrate-based desalination/purification using permeable support member
Processes and apparatus are disclosed for separating and purifying aqueous solutions such as seawater by causing a substantially impermeable mat of gas hydrate to form on a porous restraint. Once...
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7002045 |
Ortho ester-based surfactant, its preparation and use
The present invention relates to a new ortho ester-based surfactant, where the hydrophobic and hydrophilic parts are connected by ortho ester linkages to the molecule. The ortho ester has the...
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6989103 |
Method for separating fluids
Methods of treatment of fluids produced by an oil or gas well following a stimulation operation, allowing separation from the fluids and re-injection of oil and gas hydrocarbons in a production...
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6977048 |
Method of recycling water contaminated oil based drilling fluid
A method for recycling an invert emulsion based drilling fluid, in which the invert emulsion based drilling fluid includes an oil component and an aqueous component. The method includes: mixing the...
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6929750 |
Device and method for separation
The present invention provides a device and a method for separating particles from fluids using ultrasound, laminar flow, and stationary wave effects comprising a micro-technology channel system...
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6893798 |
Method of lithographic printing with a reusable substrate
A method for treating a micro-emulsion that can be used for removing the ink-accepting areas of a lithographic printing master is disclosed, which enables to recycle the water from the used...
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6858093 |
Method for paint detackification using compositions containing chitosan
A composition and method for treating oversprayed paints in paint spray booths is provided. The composition includes an aqueous solution of a compound such as chitosan, and a complex metal salt,...
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6846420 |
Process for removing oil from solid materials recovered from a well bore
The present invention provides a process and an additive package for removing oil from solid material recovered from a well bore, e.g., drill cuttings and produced sand. In this process, the solid...
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6818799 |
Process for removing tar from spent acid
There is a process for removing by-product tar during the manufacture of isopropyl alcohol. The process comprises the following: a) reacting propylene with concentrated sulfuric acid and water to...
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6818417 |
Method for locating hidden microorganism contaminated surfaces in industrial water systems
A method for locating hidden microorganism contaminated surfaces in industrial water systems is described and claimed. The method works by applying a solution or dispersion of a fluorogenic reagent...
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6749757 |
Method and apparatus for removing hydrocarbons from water
An improved production water treatment system and method are disclosed. The treatment apparatus includes a vertically oriented vessel with tangentially disposed injection nozzles including one or...
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6716358 |
Demulsification of water-in-oil emulsions
The invention includes a method for demulsification of water-in-oil emulsions.
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6703428 |
Aromatic aldehyde resins and their use as emulsion breakers
Resins obtainable from compounds of formula 1 in which the substituents R 2 and HNR 1 can be in the ortho, meta or para position relative to one another, and R 1 has the same meaning as R 2 ,...
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6695968 |
Removal of water solubilized organics
Methods and compositions for removing organics solubilized in a water-like fluid (WSO), such as the water produced in connection with the production of hydrocarbons from subterranean formations,...
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6638983 |
Demulsification of water-in-oil emulsions
Water-in-Oil emulsions are demulsified using adducts of a) polyalkylene glycols (PAGS) having a molecular weight greater than 6,500 and up to 60,000, ethylene oxide (EO), and diisocyanates (DIs) or...
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6599949 |
Aromatic sulfonic acid demulsifier for crude oils
The invention is directed towards a chemical demulsifier formulation comprising an alkyl aromatic sulfonic acid additive with at least 16 carbon atom alkyl group and at least two 6 carbon-ring...
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6584988 |
Process for removing contaminants from water
A process for the remediation of soil, rock or water contaminated with volatile organic compounds involving: (1) forming an emulsifier comprising: (a) a sugar surfactant; and (b) a nonionic...
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6566410 |
Methods of demulsifying emulsions using carbon dioxide
A method of demulsifying a water-in-oil emulsion comprising an oil phase comprising asphaltenes and an aqueous phase is disclosed. The method comprises contacting a carbon dioxide containing fluid...
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6555009 |
Demulsification of water-in-oil emulsions
The invention includes a method for demulsification of water-in-oil emulsions.
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6534027 |
Process for producing ammonia with ultra-low metals content
Commercial grade ammonia is purified for use in production of semiconductors by initially passing the liquid ammonia through a liquid phase oil separation system. This removes the vast majority of...
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6491824 |
Method for processing returns from oil and gas wells that have been treated with introduced fluids
A method for resolving sludge/emulsion formed as a result of adding introduced fluids to oil and gas wells. The method comprises adding a water-dispersible emulsion breaker and/or adjunct additives...
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