Class / Patent application number | Description | Number of patent applications / Date published |
208179000 | Purifying used oil | 17 |
20080296205 | Waste Plastic Liquefaction Plant and Waste Plastic Liquefaction Process - An oil reclaiming system for plastic waste capable of producing oils and carbonized residues in a shorter period of time and at a higher yield and capable of providing oils and carbonized residues of higher qualities, wherein granite is disposed in a furnace. | 12-04-2008 |
20090314687 | Device for Regeneration of Oils - The invention relates to a device and method for regenerating oil ( | 12-24-2009 |
20100252485 | Methods and Apparatus for Removal of Degradation Byproducts and Contaminants From Oil for Use in Preparation of Biodiesel - Methods, particles, and devices are disclosed for filtration of oil for use of the oil in the preparation of biodiesel. Disclosed particles may comprise a substantially inert porous particle with a coating comprising a polymer having amine, amino, and/or imine group(s). | 10-07-2010 |
20110100878 | PROCESS FOR THE TREATMENT OF OIL RESIDUES COMING FROM THE OIL INDUSTRY - The present invention relates to a process for the treatment of oil residues coming from the oil industry which comprises the recovery of the oil fraction of residues by extraction with solvents having a low environmental impact (ethyl acetate/toluene) and subsequent finishing for the downgrading of the residual material. | 05-05-2011 |
20120006725 | DEVICE FOR REGENERATION OF OILS - The invention relates to a device and method for regenerating oil ( | 01-12-2012 |
20120145597 | EXTRACTION METHODS AND APPARATUS - The present invention relates to hydrocarbon extraction method and apparatus therefor. | 06-14-2012 |
20140021099 | SYSTEM AND METHOD FOR CONTINUOUS REMOVAL OF WATER FROM OIL VIA MEMBRANE SEPARATION - An oil circulation system and method for continuously purifying engine oil including an engine operably connected to an oil reservoir, wherein at least one stream of oil is conveyed from the oil reservoir to the engine via a conduit, and circulated through the engine and conduit via engine operating pressure and/or one or more pumps, and at least one membrane unit positioned in a path of the oil stream such that oil containing dissolved/emulsified droplets of water is fed continuously through the membrane unit. A cross flow hollow fiber module adapted to be positioned in a system for continuously purifying engine oil, the hollow fiber module having a central feed distributor tube, hollow fiber membranes positioned around the central feed distributor tube, end caps with ports for receiving and emitting a flow of sweep air, and optionally a shell casing, wherein the central feed distributor tube includes openings sized and positioned to allow oil to flowing into the feed distributor tube to flow out radially. | 01-23-2014 |
208180000 | With added organic material | 4 |
20090184030 | Process For Separating Used Oil - A process for removing impurities from used oil. Impurities such as water, solid particles, and the like are removed from used oil by processing the oil with a mixture of polar and non-polar solvents. The process operates at room temperatures and pressures, simplifying the equipment and energy requirement for the process. | 07-23-2009 |
20100032342 | OIL RE-REFINING SYSTEM AND METHOD - A lubricating oil re-refining system and process provide a highly efficient and environmentally sound alternative for reclaiming and reusing spent oils. The re-refining process advantageously removes the additives, water, wear metals and other contaminants from the used lubricating oil, while at the same time, returns the base oil fraction that once again can be blended with additives and can be restored to its original high quality specifications for reuse without causing secondary pollution. | 02-11-2010 |
20110024329 | METHOD FOR MAKING A USABLE HYDROCARBON PRODUCT FROM USED OIL - One or more computer implemented methods for continuously processing used oils are provided. The method can include a feedstock tank containing feedstock. The feedstock tank can have a sparger and a level sensor. The feedstock tank can be in fluid communication with a first pump, a first filter, a heater, a second filter, first flow meter, a primary nozzle, a secondary nozzle, a motionless inline static mixer, and a first reactor. | 02-03-2011 |
20150048005 | System and Method for Stripping and Extraction of Used Lubricating Oil - A continuous, hot vapor stripping, process and apparatus to recover base oil from used lubricating oils (IMO) containing lubricating oil boiling range material, with further refining using solvent extraction to produce a high quality base oil. | 02-19-2015 |
208181000 | Plural treating agents (sequential or simultaneous) | 1 |
20150361356 | REFINING USED MOTOR OIL THROUGH SUCCESSIVE HYDROTREATING PROCESSES - A method for refining used motor oil using two or more hydrotreating reactors arranged in series. The used motor oil may be vacuum distilled to produce an unrefined gasoil. The unrefined gasoil may then be hydrotreated in a first hydrotreating reactor with hydrogen operated at a temperature ranging from approximately 245° C. to approximately 260° C. to produce a hydrotreated gasoil. The hydrogen may comprise a mixture of fresh hydrogen and recycled hydrogen recovered from the last of the two or more hydrotreating reactors. The hydrotreated gasoil may then be hydrotreated in one or more additional hydrotreating reactors operated at temperatures ranging from approximately 260° C. to approximately 330° C. to produce a refined gasoil. The first hydrotreating reactor may remove a substantial portion of metallic impurities from the unrefined impurities, while the one or more additional hydrotreating reactors remove a substantial portion of heteroatom impurities from the unrefined gasoil. | 12-17-2015 |
208184000 | Distillation or degassing | 5 |
20080210601 | De-Gassing Lubrication Reclamation System - A vapor compression system ( | 09-04-2008 |
20110259795 | PROCESS AND SYSTEM FOR RECOVERING BASE OIL FROM LUBRICATION OIL THAT CONTAINS CONTAMINANTS THEREIN - A process of recovering base oil from lubrication oil that contains contaminants therein, the process comprises the steps of: (i) extracting a light diesel fraction from the lubrication oil; and (ii) distilling the lubricating oil under vacuum conditions after said extracting step (i) to obtain a base oil that is substantially free of said contaminants. | 10-27-2011 |
20120205289 | METHOD AND APPARATUS FOR PROCESSING OF SPENT LUBRICATING OIL - The present invention provides a method and an apparatus for recovery of spent lubricating oil. The evaporation of hydrocarbon fractions from spent lubricating oil is carried out in three steps. The first step is at approximately 150-1030 mbar and between 70-240° C. in which is greater than 99% water, greater than 99% of ethylene glycol and greater than 50% of hydrocarbon molecules with normal boiling point up to 310° C. are evaporated from spent oil. The second step is operated at 6-30 mbar and 200-2900 C in which predominantly gasoil and light vacuum gasoil fractions are evaporated. The third step is operated at 250-320° C. and 0.5-15 mbar in which mainly heavy vacuum gasoil (boiling range of 425 to 570° C. on ASTM D-1160 test) is evaporated from spent oil. | 08-16-2012 |
20160130510 | DISTILLATION OF USED MOTOR OIL WITH DISTILLATE VAPORS - A process and apparatus for re-refining used lubricating oil (ULO) having thermally unstable additives such as zinc compounds. ULO is mixed with a superheated distillate which may be a recycle stream, an outside stream, or combination, then charged to a vacuum flash or fractionator, to produce an overhead vapor and a residual fraction comprising additives and/or decomposition products thereof. Overhead vapor is condensed to yield a liquid lubricant boiling range product. Superheating may occur in a fired heater, heat exchanger or combination. Mixing of superheated fluid and ULO may occur in a pipe in turbulent flow and/or an in line mixer. Energy efficiency is improved by heat exchanging ULO feed with vapor or liquid product streams. An aromatic rich and thermally stable outside stream such as FCC LCO can be readily superheated. Recovered lubricant boiling range material can be recycled, used as a lube stock or for FCC feed. | 05-12-2016 |
208186000 | With solid-liquid separation | 1 |
20140202926 | System and Method for Processing Diesel Fuel from Waste Oil - There is disclosed a system and method for processing diesel fuel from petroleum-based waste oil on a small scale compared to conventional methods for re-refining waste oil to a valuable product. In an embodiment, the method comprises dehydrating waste oil to remove water from the waste oil, and operating a thermal reactor to induce thermal pyrolysis of the dehydrated waste oil and convert it into a hydrocarbon vapour phase. The hydrocarbon vapour derived from pyrolysis is condensed and distilled using a distillation tower to produce diesel fuel, heavy liquid hydrocarbon, light liquid hydrocarbon and light hydrocarbon vapour. A filtering step cleans the processed diesel fuel to obtain a clean diesel fuel product. | 07-24-2014 |