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7255785 |
Apparatus and process for treatment of waste oils
An apparatus and a process for reclaiming fuel oils from waste oils. The apparatus and process is characterized in that waste oils are thermally cracked by combination of high pressure and vacuum...
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7226533 |
Process for re-refining used oils by solvent extraction
A process to re-refine used petroleum oils by extraction with aliphatic solvents, wherein after eliminating the extract solvent, the process consists of the following treatments, (a) flash,...
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7208079 |
Process for the treatment of waste oils
A process for the treatment of waste oil comprises the steps of (a) supplying a stream of the waste oil to a dehydrator to dehydrate the waste oil and obtain a stream of dehydrated waste oil; (b)...
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7198715 |
Device for separating fluid mixtures
A device for separating fluid mixtures, in particular for separating water from oil, includes a vacuum container ( 10 ) with several sub-chambers ( 26, 44, 40 ). At least one liquid constituent of...
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7045038 |
Process for treating waste oil
There is disclosed a burnable used oil fuel product by the process comprising:
(a) obtaining a used oil sample having at least 1% (by weight) aqueous substances; (b) heating the used oil...
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6841061 |
Antigelling agent for hydrocarbon mixture containing conjugated diene and method of preventing clogging of apparatus for separating and purifying the mixture
An Anti-gelling agent for a hydrocarbon mixture containing a conjugated diene, which comprises (a) at least one compound selected from the group consisting of compounds having an NO radical in the...
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6759438 |
Use of oxygen analysis by GC-AED for control of fischer-tropsch process and product blending
Methods for producing a substantially paraffinic Fischer-Tropsch product or a blended Fischer Tropsch product comprising a selected oxygenate concentration, and if required, a selected oxygenate...
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6712954 |
Method for reprocessing waste oils, base oils obtained according to said method and use thereof
The invention relates to a method for reprocessing waste oils and producing high-grade base oils, whereby waste oil is treated by means of distillation, thin-film evaporation in a high vacuum,...
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RE38366 |
Oil re-refining method and apparatus
A method and apparatus for re-refining used oil, in which the used oil is processed in at least one cyclonic vacuum evaporator comprising a void evaporation chamber ( 4 ) into which feedstock is...
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6447672 |
CONTINUOUS PLURAL STAGE HEATED VAPOR INJECTION PROCESS FOR RECOVERING LUBE OIL BASE STOCKS FROM USED MOTOR OIL FORMULATIONS, AND ASPHALT BLEND COMPOSITIONS CONTAINING USED MOTOR OIL BOTTOMS FROM SAID PROCESS
A continuous, hot vapor injection process and apparatus is provided for recovering lube oil base stocks from used lubricating oil containing distillable liquid hydrocarbons and water. Also...
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6440298 |
Method of reclaiming waste oil
An apparatus and a method are provided reclaiming a useful oil product from waste oil, such as used lubricating oil. The apparatus comprises an oil feed means, a boiler, a heater and a separating...
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6402938 |
Vaporization of used motor oil with non-hydrogenating recycle vapor
Used Motor Oil is re-refined by direct injection of a superheated, non-hydrogenating recycle vapor. The process operates at low pressures, preferably from atmospheric—10 atmospheres absolute....
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6402937 |
“Pumped” recycle vapor
A process for the direct contact heating and vaporization of UMO is disclosed. A superheated, but condensable, vapor heats and vaporizes distillable liquid hydrocarbons from a waste motor oil...
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6346173 |
Method for the vacuum distillation of a liquid product, particularly oil stock, (variants) and system for realizing the same
The invention essentially relates to a method for vacuum distillation of liquids that includes feeding a polar liquid into a vacuum-producing liquid-gas jet apparatus as a motive liquid if...
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6287455 |
Purifier for lubricating oil or hydraulic oil
The present invention provides a means of removing water, antifreeze and fuel from lubricating or hydraulic oil by evaporating these impurities and venting them out of the purifier. The oil is...
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6277247 |
Operation method of a plant for distilling liquid products and plant for realizing the same
The invention pertains to the field of the petrochemical industry. The invention essentially relates to a system and method that includes feeding of a liquid having molecular weight more than 100...
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6117309 |
Method of rerefining waste oil by distillation and extraction
A process for recovering a base oil of lubricating viscosity from used oil in which, following optional pretreatment, used oil is re-refined by distilling it in distillation apparatus having...
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6106699 |
Process for de-chlorinating and de-fouling oil
The invention is directed to a process of reducing the chlorine content of oil as well as its propensity to foul during subsequent distillation processes. The process heats the oil to a temperature...
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6004434 |
Method of recycling cleaning solvent
A method of treating cleaning solvent used to clean mechanical parts. The method includes adding to the cleaning solvent a treating composition selected from the group of C 5 -C 14 alcohols, C 2 ...
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5980694 |
Apparatus for the purification of water contaminated with oil
An installation for cleaning oil-polluted water, in particular at oil and gas production plants, is provided with a distillation column having a polluted water feed and at least one contact packing...
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5976357 |
Purification of oil
The present invention relates to a method for purification of oil which is contaminated with particles of random density and/or water. A collection polymer or polymer mixture which is insoluble in...
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5965785 |
Amine blend neutralizers for refinery process corrosion
This invention relates to inhibiting corrosion in systems of condensing hydrocarbons which contain water and chlorides, and, more particularly, in the overhead of crude oil atmospheric pipestills,...
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5885444 |
Process for converting waste motor oil to diesel fuel
A process for thermally cracking waste motor oil into a diesel fuel product is provided. The thermal cracking process uses low temperature cracking temperatures from 625° F. to 725° F. with...
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5766412 |
System and method of waster water reduction and product recovery
A system is disclosed for reducing the amount of waste water and recovering reusable constituents from a waste stream comprising at least two constituents having different relative volatilities....
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5759385 |
Process and plant for purifying spent oil
The invention concerns a process and plant for purifying spent oil, comprising dehydration, preferably by atmospheric distillation, directly followed by vacuum distillation producing a residue and...
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5753126 |
System for increasing corona inception voltage of insulating oils
The Corona Inception Voltage of insulating oils is increased by repetitive cycles of prestressing the oil with a voltage greater than the corona inception voltage, and either simultaneously or...
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5750052 |
Foam control method
Methods for controlling foam in hydrocarbon liquids within hydrocracking unit separator systems utilizing alkylphenolformaldehyde resin alkoxylates with a propylene oxide/ethylene oxide block...
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5741415 |
Method for the demercaptanization of petroleum distillates
The demercaptanization of petroleum distillates may be carried out by means of the oxidation of the mercaptans contained therein using the oxygen in the air, at a temperature of about 80° to about...
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5714664 |
Process using amine blends to inhibit chloride corrosion in wet hydrocarbon condensing systems
The disclosure is a process for inhibiting corrosion in condensing systems comprising wet hydrocarbons and chloride which comprises feeding a mixture of amines to the condensing system to elevate...
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5707510 |
Crude oil emulsion treating apparatus and method
The treating apparatus and method of the present invention improve the efficiency and reliability of flash treating crude oil by including a recycled oil pumping loop that takes crude oil from a...
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5639383 |
Used mineral motor oil ecological recycling procedure
This procedure includes detecting and rejecting the used mineral motor oils containing polychlorinated biphenyls (PCB's) and/or polychlorinated triphenyls (PCT's) before filtering; before the...
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5527449 |
Conversion of waste oils, animal fats and vegetable oils
Waste lubricating oil, vegetable oil and animal fat are reprocessed into commercially usable diesel fuel and naphtha by thermocracking. A thermocracker unit is fired with sludge removed from the...
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5447628 |
Reconstituting lubricating oil
A used lubricating oil comprising lube oil additives, including zinc dithiophosphate is reconstituted. Zinc dithiophosphate is thermally decomposed at a temperature of 400° F. (204° C.) to 1000°...
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5389299 |
High temperature hydrocarbon defoamer composition and method
Methods and compositions for controlling foam in high temperature hydrocarbons during processing animal oils, exemplified by mink oil, are added to the hydrocarbon to control foam.
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5384037 |
Integrated process for the production of distillate hydrocarbon
A process for the production of a distillable hydrocarbon product stream from a first distillate hydrocarbon stream, a second distillate hydrocarbon stream and a waste lubricant stream by means of...
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5382328 |
Installation for processing waste oil
For the processing of waste oil, i.e. environmentally safe processing, a process and installation are used whereby the waste oil is preheated with the distillation gases and is then distilled...
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5362381 |
Method and apparatus for conversion of waste oils
Waste lubricating oil is reprocessed into commercially usable diesel fuel and naphtha by thermocracking. A thermocracker unit is fired with sludge removed from the principal pool of oil undergoing...
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5316743 |
Diesel fuel cracking unit
A portable refinery including a refining vessel, a heater for providing heat to the refining vessel, dewatering devices, and a storage tank mounted on a skid which can be quickly and easily...
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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...
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5306419 |
Used lubricating oil reclaiming
A used lubricating oil comprising lube oil additives, including zinc dithiophosphate is subjected to reclaiming. Zinc dithiophosphate is thermally decomposed at a temperature of 400° F. (204° C.)...
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5302282 |
Integrated process for the production of high quality lube oil blending stock
A process for the production of high quality lube oil blending stock from atmospheric fractionation residue and waste lubricants by means of contacting the waste lubricant with a hot hydrogen-rich...
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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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5223152 |
Recovered oil dewatering process and apparatus with water vaporizing in blowdown drum
A process and apparatus for dewatering a recovered oil stream prior to the recovered oil stream being fed to a fractionator for reprocessing into product s rea s uses a blowdown drum controlled...
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5180484 |
Caustic free liquid/liquid process for sweeting a sour hydrocarbon fraction
This invention relates to a liquid-liquid process for treating a sour hydrocarbon fraction. The process comprises contacting the hydrocarbon fraction in the presence of an oxidizing agent with an...
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5141628 |
Method of cleaning and regenerating used oils
Used oils, especially used lube oils, after rough filtering are mixed with an aqueous solution of water glass and an aqueous solution of polyalkylene glycol while stirring at elevated temperature,...
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5102531 |
Process for treating a temperature sensitive hydrocarbonaceous stream containing a non-distillable component to product a distillable hydrocarbonaceous product
A process for treating a hydrocarbonaceous feed stream containing a non-distillable component to produce a distillable hydrocarbonaceous product and a heavy product comprising the non-distillable...
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5049258 |
Reprocessing of contaminated oils
A process is disclosed for reprocessing contaminated oils, such as used crankcase oil from automobile engines, by thermal treatment, such as visbreaking, in the presence of other hydrocarbon...
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5045179 |
Process for the hydrogenation reprocessing of used oils
The present invention provides a hydrogenation process for reprocessing used oil into secondary raffinates in the form of lubricating oils. In this process according to some embodiments of the...
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4968410 |
Oil recovery system
System for recovering purified oil from a mixture of oil, water, and solid particles; comprising allowing the mixture to settle while heating to about 160° F. to form a lower water layer and an...
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4941967 |
Process for re-refining spent lubeoils
Process for re-refining spent lubeoils, wherein a lubeoil freed from water and sludge forming impurities is subjected to a pre-destillation at reduced pressure and with a short residence time of...
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