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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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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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7396433 |
Process and arrangement for separating oil from oil containing materials
The process separates oil and water from a sludge mixture by directing the sludge mixture into a rapidly rotating friction dryer having a cylindrical chamber with a smooth inner surface and a...
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7323342 |
Method for improving oil desalting by forming unstable water-in-oil emulsions
A method for determination for a given oil the relative stability of a water-in-oil emulsion that will be formed by that oil with water comprises measuring for the given oil the weight fraction of...
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7108780 |
Oil desalting by forming unstable water-in-oil emulsions
A method for determination for a given oil the relative stability of a water-in-oil emulsion that will be formed by that oil with water comprises measuring for the given oil the weight percent...
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7097761 |
Method of removing water and contaminants from crude oil containing same
A method for contaminant and water removal from crude oil. The method involves recirculating at least a portion of the dewatered crude into a dehydrator. The dehydrator contains a heated dehydrated...
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7077950 |
Continuous process for the removal of water from a hydrocarbon stream
Process for the continuous drying of a hydrocarbon stream at a temperature being effective in drying the stream with an ionic liquid drying agent comprising a salt of sulphuric acid being in liquid...
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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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6774276 |
Method and system for transporting a flow of fluid hydrocarbons containing water
A method of transporting a flow of fluid hydrocarbons containing water through a treatment and transportation system including a pipeline, wherein the flow of fluid hydrocarbons is introduced into...
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6740229 |
Method for drying the charge from a unit that treats petroleum cuts with a low water charge
This invention relates to a method for drying the charge of a unit that treats petroleum cuts with a low water charge that consists in injecting a hydrolysable chemical compound into said charge. ...
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6673239 |
Hydrocarbon purificatin system regeneration
A system and process for removing water and heteroatom-containing compounds from hydrocarbons and for regenerating the adsorbent used in the system and process is disclosed and includes contacting...
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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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6423210 |
Process for dehydrating a mineral oil or other solvents for the preparation of moisture-in-oil or moisture-in-solvent standards
An oil, such as a mineral oil, for example, transformer oil, is contacted with calcium carbide and the mixture is stirred until a liquid phase containing less than 1 ppm water and a solid phase...
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6383367 |
Method and apparatus for separating water from oil
A method and apparatus for separating water from oil includes creating a vacuum in a container so that oil which contains water and gas bubbles is drawn upward through a first section of the...
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6310106 |
Method for demulsifying emulsions
A process for breaking an emulsion into a water phase and an oil phase involving: (a) providing an emulsion containing an oil phase and a water phase; (b) providing an alkoxylated C 10 -24...
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6260620 |
Process of separating excess water or sludge from recovered crude petroleum oil
A method for separating excess water, sludge, or both, from recovered crude petroleum oil. The method comprises adding to crude petroleum oil a composition comprising about 40 to 99 wt % of a fatty...
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6228239 |
Crude oil desalting method
In one embodiment, the invention is related to a process for desalting crude oil that requires less wash water than conventional desalting methods. In the preferred embodiment of the invention, a...
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RE37046 |
Process for recycling and purifying condensate from a hydrocarbon or alcohol synthesis process
This invention relates to a process of recycling condensate from a hydrocarbon or alcohol synthesis, wherein the condensate comprises water and contaminants such as lower molecular weight...
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6165360 |
Method and device for dehydrating heavy oils
A method and a device for dehydrating a heavy oil wherein an emulsion of water and a heavy oil is mixed in a stirring chamber together with a suitable amount of an emulsion breaker, the mixture is...
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6120678 |
Desalting adjunct chemistry
Improved performance in the phase separation of aqueous brines from hydrocarbons within an electrostatic desalter operation is obtained by the addition to the crude oil emulsions entering the...
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6106700 |
Method of treating crude oil with an amine oxide compound
An aqueous composition containing an amine oxide surfactant, and preferably containing an amine oxide surfactant and enzymes, is added to crude oil, preferably by injecting the composition into the...
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6068759 |
Process for recovering lube oil base stocks from used motor oil formulations, asphalt blend compositions containing used motor oil bottoms from said process, and asphalt pavement compositions containing said asphalt blend compositions
A process is provided for recovering lube oil base stocks from used lubricating oil formulations containing base oil stock and organo-metallic component which obviates preseparation of water and...
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6039880 |
Method for dehydrating a waste hydrocarbon sludge
A method for dehydrating a waste hydrocarbon sludge, includes the steps of: (a) providing a waste hydrocarbon sludge in the form of an emulsion of water and oil having a water content greater than...
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6036849 |
Process for the removal of hydrocarbons from soils
A method of removing hydrocarbons from soils contaminated with various hydrocarbons such as gasoline, diesel fuel, solvents, motor oil and crude oil. The process first screens the soil to remove...
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6007702 |
Process for removing water from heavy crude oil
A process for removing water from heavy crude oil uses an inorganic salt which is a Group IA or Group IIA metal halide or nitrate salts. The crude oil is in the form of a water-in-oil emulsion with...
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5948242 |
Process for upgrading heavy crude oil production
A process for upgrading heavy crude oil production is described which involves adding a diluent, or solvent, which is a light hydrocarbon to reduce the viscosity and specific gravity of the crude...
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5919353 |
Method for thermally reforming emulsion
In a method for thermally reforming an emulsion, comprising removing water and an alkali metal or alkaline earth metal salt contained in an oil-in-water type emulsion of a tarry material or a heavy...
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5882506 |
Process for recovering high quality oil from refinery waste emulsions
An invention is disclosed whereby refinery waste emulsion streams such as API slop oils, desalter rag layer emulsions, mud pit sludges and the like having high viscosities and specific gravity...
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5858247 |
Sludge demulsification process and agents
The invention involves the demulsification and liquefaction of hydrocarbon based sludges. A demulsifier and a liquefaction agent and methods of using the same are disclosed. In a preferred...
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5772866 |
Compositions and methods for breaking water-in-oil emulsions
Compositions of an non-alkkoxylated alkylphenol-formaldehyde resin and poly(alkylene glycol) are effective at breaking water-in-oil emulsions in a liquid hydrocarbon. Preferably, the composition is...
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5759409 |
Separation of water from crude oil and oil demulsifiers used for this purpose
Water is separated from crude oil by a process in which the oil demulsifier used is a mixture of A) compounds which have demulsifying activity and are of the structure type of the (a)...
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5746908 |
Crude oil desalting process
A process for desalting a crude oil comprises (1) injecting steam into the oil to form a steam-injected oil; (2) adding water to the steam-injected oil to form a mixture; (3) introducing the...
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5693257 |
Compositions and method for breaking water-in-oil emulsions
Compositions of an alkylphenol-formaldehyde resin and poly(alkylene glycol) are effective at breaking water-in-oil emulsions in a liquid hydrocarbon. Preferably, the composition is employed in a...
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5660717 |
Abatement of hydrolyzable cations in crude oil
Hydrolyzable cations contained in crude oil are removed from crude oil by treatment of the crude oil with an aqueous solution containing 100 to 5000 ppm of a water soluble anionic polymer...
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5643460 |
Method for separating oil from water in petroleum production
A method for separating emulsified oil from water in petroleum production is disclosed. Low molecular weight polymers of dimethylaminoethyl acrylate methyl chloride and benzyl chloride quaternary...
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5614101 |
Methods for treating mud wash emulsions
The present invention provides for methods for treating bottoms sludge and water-oil interphase emulsions present in a containment vessel by injecting into the sludge an effective resolving amount...
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5611869 |
Refinery vessel cleaning treatment
The present invention provides for methods and compositions for cleaning oil and sludge from a refinery vessel and for separating the resulting emulsion formed by the cleaning composition and the...
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5607574 |
Method of breaking reverse emulsions in a crude oil desalting system
A combination of aluminum chlorohydrate and a polyamine, such as polydiallyldimethyl ammonium chloride in an aqueous solution is described which is an effective emulsion breaker for reverse...
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5573672 |
Water managed solvent extraction process for the organic wastes
The invention relates to a process for separating extractable organic material from a composition comprising organic material intermixed with solids and water. The composition is contacted with a...
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5558768 |
Process for removing chlorides from crude oil
A process is described for removing chlorides from crude oils, including heavy oils and bitumens. The process steps comprise (1) mixing a non-ionic surfactant with the crude oil, (2) bubbling a gas...
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5472620 |
Solid-liquid separation process using at least one polymer and cavitation energy
A process for separating solids from a fluid using at least one polymer and acoustic energy at or above cavitation is disclosed. The fluid containing the polymer is flowed into a vessel and...
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5458765 |
Process of drying and removing solids from waste oil
This invention is a process comprising several steps for removing solid contaminants and for assisting in the dewatering of liquid hydrocarbons. For the purposes of this invention, solid...
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5449463 |
Desalter wash water additive
One aspect of the invention provides a method of preventing crude oil from becoming emulsified in desalter wash water. According to the method, the wash water is treated with an effective amount of...
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5433863 |
Method for clarifying wastewater containing surfactants
A method and apparatus for recovering oil and clarifying waste water from an oil field are disclosed. The method includes the step of treating the waste water with an aqueous de-emulsifying agent...
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5434323 |
Method for reducing the agglomeration tendency of hydrates in production effluents
The invention relates to a process for reducing the agglomeration tendency of hydrates within a fluid containing water and gas by adding a nonionic, amphiphilic compound obtained by reacting at...
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5426258 |
Process for reducing the agglomeration tendency of hydrates in the production effluent
A description is given of a process for reducing the agglomeration tendency of hydrates within a fluid incorporating at least water and hydrocarbons, liable to form hydrates, under conditions where...
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5423979 |
Liquid decontamination apparatus
In a multi-pass system for purifying oil or other liquids, an improved apparatus and method for mixing air with the contaminated liquid for separation after a phase change from liquid to gas. The...
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5403475 |
Liquid decontamination method
In a multi-pass system for purifying oil or other liquids, an improved apparatus and method for mixing air with the contaminated liquid for separation after a phase change from liquid to gas. The...
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5384039 |
Crude oil dehydration and desalting system with a higher gravity than 10 degrees API in mixing pipelines
A method for dehydrating and desalting an oil-in-water emulsion includes the steps of: injecting a demulsifier into the flow to destabilize the emulsion; injecting water to promote desalting; and...
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