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7594996 |
Petroleum recovery and cleaning system and process
A system and process are provided for recovering and/or cleaning residual or waste petroleum products such as sludge accumulated within a storage tank or upon process equipment surfaces, or from...
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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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7008528 |
Process and system for continuously extracting oil from solid or liquid oil bearing material
A process for continuously extracting oil from a solid or liquid oil-bearing material comprises (a) removing air from the extraction system, (b) introducing an inert gas into the extraction system...
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6689925 |
Conversion of drilling waste to fuel
Drilling waste resulting from drilling processes of oil and gas wells using hydrocarbons based drilling fluids contains not only hydrocarbons but also the separated cuttings, and other organic and...
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6673231 |
Method for removing sludge in crude oil tank and recovering oil therefrom
Disclosed is a method for removing sludge in a crude oil storage tank by use of thermal oil discharged from a distillation tower of an oil refinery, such as atmospheric residue, vacuum residue, or...
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6549817 |
Method for regulating centrifuges for dehydrating wastewater sludge, using fuzzy logic
A process for regulating a centrifuge used for solid/liquid separation of sewage sludge commences by measuring the input variables of the operating point ot the centrifuge, the variables including ...
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6245216 |
Method for fluidizing tars
Process for the preparation of an aqueous tar suspoemulsion by mixing a mixture including (a) a viscous tar composition formed from a tar, from inorganic solids and, optionally, from water, (b)...
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6214236 |
Process for breaking an emulsion
A process for removing even tightly emulsified oil, water and solid emulsions by the application of a shear force sufficient to break the emulsion. In one particular application, a tank bottom...
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6204421 |
Method of disposing of waste in a coking process
A method for recycling a waste stream containing water and solids comprises (a) removing water from the waste stream to produce a second stream containing less than 60% by weight water, (b) drying...
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6168708 |
Method for recovery and recycling of hydrocarbon residue
The present invention provides for a method for recovering and recycling a hydrocarbon residue from a petroleum material such as crude oil, where the hydrocarbon residue is a waxy solid material....
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6117305 |
Method of producing water slurry of SDA asphaltene
Disclosed is a method of producing water slurry of SDA asphaltene by dispersing residue resulting from solvent deasphalting of petroleum vacuum residue produced in refineries, which has low...
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6061383 |
Method and apparatus for tuning polychlorinated biphenyl to harmless
The present invention reduces generation of harmful substances through processing at lower cost for facilities and processing. According to the present invention, polychlorinated biphenyl and...
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6056882 |
Process of breaking a sludge emulsion with a ball mill followed by separation
A process for resolving even tightly emulsified oil, water and solid emulsions by the application of a sheer force sufficient to break the emulsion. In one particular application, a tank bottom...
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6004519 |
Aluminum promoted hydrogenation of alkylation sludge for aluminum chloride recovery
The recovery of aluminum chloride from deactivated alkylation catalyst complexes by hydrogenation using hydrogen gas and an aluminum catalyst is disclosed. Using aluminum to catalyze the...
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5998640 |
Method for recovering oil from an oil-bearing solid material
A method and apparatus for continuously removing oil from oil-bearing solids such as tar sands, vegetables or other solid materials using a solvent is provided. By providing a pressure differential...
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5928495 |
Emulsion for heavy oil dilution and method of using same
A surfactant which is capable being used to enhance accessing, storing and transporting carbonaceous materials such as crude oil or coal. The surfactant includes a dielectric surfactant having a...
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5922189 |
Process to refine petroleum residues and sludges into asphalt and/or other petroleum products
A process for significantly decreasing processing time, reducing capital costs, increasing yield, improving quality, and improving the safety of refining petroleum residues and sludges generated by...
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5914031 |
Process in a reducing medium of chemically transforming complex chemical structures in a supercritical fluid
Chemical transformation of complex chemical structures in a supercritical medium. The transformation of one or more chemical structures (20) involves at least one reduction reaction in a solvent...
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5897767 |
Composition and process for the treatment and recovery of oil sludge
A chemical composition is disclosed for use in the treatment and dissolution of oil sludge. The composition includes an anionic surfactant and a nonionic surfactant. In addition, a wetting agent is...
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5888920 |
Integrated process using in situ regenerated sulfuric acid as catalyst
This invention discloses an integrated process of alkylation of olefins and regeneration of spent sulfuric acid. The alkylation of olefins may be replaced by nitration of toluene or by chlor-alkali...
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5888375 |
Method of treating oil sludge
A method of treating oil sludge and an apparatus for carrying out same, whereby oil of good quality and inorganic harmless slag can be easily obtained. The method includes agitating oil sludge in...
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5865956 |
Process and apparatus for the conversion of sludges
A process for the conversion of organic sludges, the process comprising the steps of: (a) feeding dried sludge through a first reactor (16); (b) heating the dried sludge in the first reactor...
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5853563 |
Treatment of waste petroleum
A treatment of waste petroleum (60,70) is disclosed by decoupling association of the petroleum component to contaminants by solvent treatment (92,94) of the petroleum component, followed by...
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5814206 |
Passive acid tar neutralization process
An improved process for neutralization of acid tars employs a bulk neutralizing agent having a specific gravity greater than that of the acid tar to be neutralized. The bulk neutralizing agent,...
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5711870 |
Delayed coking process with water and hydrogen donors
A residual oil feedstock comprises carbon residue measured according to ASTM D-4530. The feedstock is admixed with water/steam in an amount of 10 wt % to 30 wt % and optionally a hydrogen donor,...
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5690811 |
Method for extracting oil from oil-contaminated soil
A method for extracting oil from oil-contaminated soil containing 2 to 5 wt. % oil, comprising contacting the oil-contaminated soil with a solvent in the presence of sonic energy in the frequency...
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5681449 |
Process for producing oil from organic material-containing sludge
An organic material-containing sludge is fluidized and is heat-treated at a high pressure in a reactor disposed underground to obtain an oil having a high calorific value. The heat treatment may be...
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5656041 |
Method for detoxifying coal-tar deposits
In a process for detoxifying a coal-tar deposit, effective amounts of carbon and a calcium oxide containing substance are added at a mixing station to at least a portion of the coal-tar deposit....
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5573656 |
Process for converting acid sludge to asphalt
A process for significantly decreasing the acid sludge settling time in waste oil recovery processes comprising the steps of heating used oil to a high temperature above 725 degrees Fahrenheit,...
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5547655 |
Recovery and regeneration of sulfuric acid
Using generated active intermediates or species simultaneously to remove water and organic compounds from the spent sulfuric acid catalyst of the alkylation of olefins and alkanes is disclosed in...
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5470455 |
Process for converting acid sludge to intermediate sludge and soft and/or hard asphalt
A process for converting the acid sludge produced by waste oil refineries into an intermediate sludge which can be used in the production of either soft, un-oxidized asphalt or hard, oxidized...
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5466361 |
Process for the disposal of aqueous sulfur and caustic-containing wastes
Aqueous sulfur and caustic component-containing waste streams are disposed of in an environmentally acceptable manner employing a process featuring integrated coking and gasification operations.
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5443717 |
Recycle of waste streams
A process for producing a delayed coker quench stream for use in the quench cycle of a delayed coking process wherein a waste stream containing water, organic compounds and solids is treated to...
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5347069 |
Treating oily wastes
Disclosed is a process for treating oily wastes, which have a predominantly liquid phase, by mixing the oily waste with a granulating medium under turbulent flow conditions. The process comprises...
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5324417 |
Processing waste over spent FCC catalyst
Distress feeds, such as refinery sludge and slop oils are upgraded over hot equilibrium catalyst (E-Cat) removed from an FCC regenerator. Hot E-Cat demetallizes and/or demulsifies slop and sludge...
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5308600 |
Process for conditioning waste sulfuric acid
Process for conditioning waste sulfuric acid which is prone to precipitation of tars or resins, which comprises adding emulsifiers, preferably long-chain polyethers, to the waste sulfuric acid.
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5292429 |
Process for recovery and treatment of a diverse waste stream
A process for removing and recovering specific constituents from a waste stream at higher temperatures than the boiling point of the specific waste within a compound of chemicals and inert...
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5288413 |
Treatment of a waste sludge to produce a non-sticking fuel
A waste sludge that contains water, oil and solids is subjected to filtration under vacuum or an applied inert gas pressure, preferably no more than 50 psia while utilizing a filter aid, to retain...
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5288391 |
Rendering oily wastes landtreatable or usable
A process for deoiling wastes is disclosed. The process is integrated with a refinery and utilizes a refinery intermediary hydrocarbon stream as a solvent to recover waste oil for reprocessing in...
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5284991 |
Cyanide removal from oily solid using a solvent extraction process
A process for the removal of cyanides from contaminated oily solid waste performed by utilizing a single processing zone wherein multiple processing steps are carried out to remove contaminants....
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5269909 |
Process for treating heavy crude oil
Process obtains improved viscosity and improved distillates proportion in heavy hydrocarbons, as heavy crude oil, by providing a feedstock of heavy hydrocarbons containing a water content of...
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5269906 |
Process for the recovery of oil from waste oil sludges
Commercially valuable oil is recovered from refinery-produced, Resource Conservation and Recovery Act classified, hazardous waste oil sludges by a series of volatilizing and condensing steps (which...
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5259945 |
Process for recovery of tank bottom wastes
A process for the recovery of tank bottom wastes employing a flash tank fed with hot, pressurized tank bottom wastes and separating a vapor component and heavier bottoms then fed to a stripping...
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5258115 |
Delayed coking with refinery caustic
A refinery derived spent caustic is recycled by introducing the spent caustic to a delayed coking drum while conducting delayed coking of a hydrocarbon feedstock. The alkali metal containing...
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5250175 |
Process for recovery and treatment of hazardous and non-hazardous components from a waste stream
A process for removing and recovering specific constituents from a waste stream at higher temperatures than the boiling point of the specific constituents. In the process, the waste is moved at a...
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5234577 |
Separation of oils from solids
Drill cuttings are cleaned of oil-based drilling mud and oil using a cleansing agent, such as a C6-C10 carboxylic acid, that is preferentially oil soluble at one pH and preferentially water soluble...
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5195847 |
Process for cleaning drilling mud contaminated with hydrocarbons
A process for recovering hydrocarbon contaminants from a drilling mud by adding a hydrocarbon diluent along with a wash water to create an emulsion. The wash water having a surfactant dissolved...
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5141732 |
Process for the removal of ammonium sulphate from tarrich waste streams from the production of (meth) acrylonitrile
The ammonium sulphate contained in tar-rich waste streams from the production of (meth)acrylonitrile can be precipitated out by adding 1 to 30 times the amount by weight of methanol, relative to...
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5100559 |
Treatment methods for breaking certain oil and water emulsions
Disclosed are treatment methods for breaking emulsions of petroleum oil and salt water, fatty oil and water, and those resulting from liquefication of organic material. The emulsions are broken by...
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5092983 |
Process for separating extractable organic material from compositions comprising said extractable organic material intermixed with solids and water using a solvent mixture
This invention provides for a process for separating extractable organic material from a feed composition comprising said extractable organic material intermixed with solids and water, the process...
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