Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8110090 | Deasphalting of gas oil from slurry hydrocracking Integrated slurry hydrocracking (SHC) and solvent deasphalting (SDA) methods for making slurry hydrocracking (SHC) distillates are disclosed. Representative methods involve passing a slurry comprising a vacuum column resid, a recycled, deasphalted oil obtained from ... | 02/07/2012 |
| 7597794 | Deep separation method and processing system for the separation of heavy oil through granulation of coupled post-extraction asphalt residue The present invention is a separation method and system in which granulation of coupled post-extraction asphalt residue is used to achieve deep separation of heavy oil. A dispersion solvent is introduced into the asphalt phase after separation by solvent extraction ... | 10/06/2009 |
| 7438797 | Method of controlling asphaltene precipitation in a fluid A method of reducing the aggregation and deposition of asphaltene from a fluid containing asphaltene, such as crude oil, which method comprises the addition to the fluid of a compound of formula (1): wherein A is an optionally substituted ring system containing 6 to... | 10/21/2008 |
| 7393449 | Petroleum hydrocarbon binder with reduced polycyclic aromatic hydrocarbon content A binder pitch material includes a petroleum pitch and asphalt fraction obtained from petroleum crude oil and has a significantly lower polycyclic aromatic hydrocarbon composition than a coal tar pitch having a like softening point. The pitch material is useful as a... | 07/01/2008 |
| 7381320 | Heavy oil and bitumen upgrading Disclosed is a process for the upgrading and demetallizing of heavy oils and bitumens. A crude heavy oil and/or bitumen feed is supplied to a solvent extraction process 104 wherein DAO and asphaltenes are separated. The DAO is supplied to an FCC unit 106 | 06/03/2008 |
| 7347051 | Processing of residual oil by residual oil supercritical extraction integrated with gasification combined cycle Residual oil supercritical extraction (ROSE) 10 and integrated gasification combined-cycle (IGCC) power systems 70, 114 are cooperatively integrated. High-level heat from the IGCC is used via a heat transfer fluid 84 for high level process heati... | 03/25/2008 |
| 7094331 | Viscosity modification of heavy hydrocarbons using dihydric alcohols A low viscosity, high softening point heavy hydrocarbon material having a viscosity reducing amount of at least one dihydric alcohol dissolved therein, and a method for producing such heavy hydrocarbon material, are disclosed. ... | 08/22/2006 |
| 7033486 | Residuum conversion process The present invention relates to a process for increasing the capacity for processing residua and obtaining higher yields of liquids having an average boiling point equal to or less than about 510° C. A residual feedstock is introduced with recycled product asphalt... | 04/25/2006 |
| 7018526 | Carbonized pitch moldings prepared from synthetic mesophase pitch and heat-soaked isotropic pitch The present invention provides carbonized pitch articles and methods for producing the same. Synthetic mesophase pitch is mixed with partially anisotropic pitch, which may be selected from heat-soaked isotropic pitch and heat-soaked mixtures of isotropic pitch and m... | 03/28/2006 |
| 6915136 | Mobile communication method and mobile communication system Any one of a plurality of terminals sharing the same number determines whether or not to switch a transfer to any of the other terminals sharing the same number. If it determines that the transfer is to be switched, it authenticates one terminal among the other term... | 07/05/2005 |
| 6878263 | Rubber process oil and production process thereof Disclosed is a rubber process oil in which the content of polycyclic aromatics (PCAs) as determined by the IP 346 method is less than 3% by mass and which is rich in aromatic hydrocarbons, and a method for producing the same. The aniline point of the rubber process ... | 04/12/2005 |
| 6821413 | Method and apparatus for continuous separation and reaction using supercritical fluid A method for the continuous process of fluids is based on mixing the fluid with a supercritical fluid. The mixing of the two fluids may be accomplished using either a co-flow or counter-flow process. The process focuses on the difference in the solubilities of the d... | 11/23/2004 |
| 6717021 | Solvating component and solvent system for mesophase pitch A solvating component for a solvated mesophase pitch. The solvated component includes a mixture of aromatic hydrocarbons having boiling points in the atmospheric equivalent boiling point range of about 285° to about 500° C. (about 550° F.-932° F.). At least 80% ... | 04/06/2004 |
| 6673234 | Combined process of low degree solvent deasphalting and delayed coking A combined process of low degree solvent deasphalting and delayed coking, which comprises feeding a deasphalting stock and a solvent into an extractor and making the yield of the deasphalted oil 70 wt %-95 wt %, and introducing a part or all of the deasph... | 01/06/2004 |
| 6641716 | Method for isolating enriched source of conducting polymers precursors using monohydroxyl alcohol treating agent An embodiment of the present invention is a method for isolating conducting polymer precursors by contacting a non-basic heterocyclic nitrogen containing hydrocarbon stream having a boiling point of from 232° C. (450° F.) to 566° C. (1050° F.) with an... | 11/04/2003 |
| 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 with the emulsion such that the carbon dioxide containing ... | 05/20/2003 |
| 6555728 | Process for decontamination of ballast pitch material A two step process for destruction of polyhalogenated aromatic compounds contained in pitch from ballasts of fluorescent lamps comprises: (a) contacting the pitch with a sufficient amount of an organic solvent such that the pitch and the solvent together ... | 04/29/2003 |
| 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 1) suspended matter content of the centrate; 2) the flow r... | 04/15/2003 |
| 6533925 | Asphalt and resin production to integration of solvent deasphalting and gasification This invention involves heat integration of a solvent deasphalting process with a gasification process and an improved process for separating a resin phase from a solvent solution comprising a solvent, deasphalted oil (DAO) and resin. This improved proces... | 03/18/2003 |
| 6464859 | Process for deacidifying a crude oil system This invention relates to a process for deacidifying a crude oil system, said process comprising the steps of: a) contacting the crude oil system with a polar solvent, such that at least part of the organic acid present in the oil is extracted into the solvent... | 10/15/2002 |
| 6464856 | Separation of tars, oils and inorganic constituents from oil bearing sands or shales An improved process for the total separation and recovery of four constituents, namely, 1) insoluble pitches and tars also known as asphaltenes, 2) a kerosene based oil fraction, 3) clays and silts of less than 80 μm mesh and 4) sands of greater than 80 ... | 10/15/2002 |
| 6383365 | Low softening point petroleum pitch and sealer A 40 petroleum pitch is disclosed. A high melting point petroleum pitch is blended with a high boiling normally liquid petroleum derived hydrocarbon stream to form a mixture having a softening point of 35-45 C. as a partial or complete replacement for coa... | 05/07/2002 |
| 6357526 | Field upgrading of heavy oil and bitumen A process and system which integrates on-site heavy oil or bitumen upgrading and energy recovery for steam production with steam-assisted gravity drainage (SAGD) production of the heavy oil or bitumen. The heavy oil or bitumen produced by SAGD is flashed ... | 03/19/2002 |
| 6274030 | Filtration of feed to integration of solvent deasphalting and gasification The invention is a process of removing solids, particularly catalyst fines, from an asphaltene-containing hydrocarbon liquid. The process comprises contacting an asphaltene-containing hydrocarbon liquid with a solvent to create a mixture. The solvent is t... | 08/14/2001 |
| 6270653 | Method of controlling asphaltene precipitation in a fluid A method of controlling asphaltene precipitation in a fluid comprising the addition of a precipitation inhibitor to the fluid containing the asphaltene.... | 08/07/2001 |
| 6270652 | Organometallic containing mesophase pitches for spinning into pitch carbon fibers An improved process is disclosed for producing a unique metals-containing anisotropic pitch suitable for carbon fiber manufacture. Soluble, aromatic-organometallic compounds are added to a carbonaceous feedstock which is substantially free of mesophase pi... | 08/07/2001 |
| 6245217 | Regenerative thermal oxidation system for treating asphalt vapors A regenerative thermal oxidation system for reducing the VOC content of asphalt vapors.... | 06/12/2001 |
| 6241874 | Integration of solvent deasphalting and gasification The invention is the integration of a process of gasifying asphaltenes in a gasification zone by partial oxidation and the process of asphaltene extraction with a solvent. The integration allows low level heat from the gasification reaction to be utilized... | 06/05/2001 |
| 6194344 | Process for preparing carbonaceous material carrying ultrafinely dispersed metal A process for the preparation of a high-softening-point pitch rich in mesopores having a softening point measured by temperature gradient method of 150° C. or higher, a weight loss by heating up to 300° C. of 5 wt. % or less and mesopores of 100 mm... | 02/27/2001 |
| 6174431 | Method for obtaining base oil and removing impurities and additives from used oil products A method for pretreating and re-refining used oil that requires only moderate heat and only one re-refining step. The pretreatment involves mixing the used oil with a basic solution and optionally a phase transfer catalyst. The phase transfer catalyst aid... | 01/16/2001 |
| 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 viscosity even at a high solid concentration and is stable for a ... | 09/12/2000 |
| 6106701 | Deasphalting process Disclosed are methods for improving the separation of resins and asphaltenes from each other and a base residuum during alkane deasphalting by adding a phase separation accelerator to the residuum. The phase separation accelerators include alkyl and alkyl... | 08/22/2000 |
| 6080302 | Method for making a process oil by using aromatic enrichment with extraction followed by single stage hydrofinishing (LAW764) A method for producing a process oil is provided in which an aromatic extract oil is added to a paraffinic rich feed to provide a blended feed. The blended feed is then extracted with an aromatic extraction solvent to yield a raffinate which subsequently ... | 06/27/2000 |
| 6074558 | Biochemical treatment of bitumen froth tailings A process for the biological treatment of bitumen froth tailings produced from a tar sands treatment and bitumen froth extraction process is disclosed. In this process bitumen froth tailings, containing native hydrocarbon metabolizing microorganisms, are ... | 06/13/2000 |
| 6048447 | Asphalt compositions containing solvent deasphalted bottoms and rerefined lube oil bottoms, and their preparation An asphalt composition is provided which contains i) an asphalt component containing solvent-deasphalted bottoms, ii) a rerefined lube bottoms fraction, iii) an optional fluxing component, and iv) an optional vacuum bottoms component. The invention furthe... | 04/11/2000 |
| 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 between the exterior and interior of an oil extraction ch... | 12/07/1999 |
| 5968349 | Extraction of bitumen from bitumen froth and biotreatment of bitumen froth tailings generated from tar sands A process for the extraction of bitumen from bitumen froth generated from tar sands is disclosed. In this process, bitumen froth is extracted from tar sands using a water process without requiring the use of caustic soda. The froth is treated in a counter... | 10/19/1999 |
| 5932186 | Organometallic containing mesophase pitches for spinning into pitch carbon fibers An improved process is disclosed for producing a unique metals-containing anisotropic pitch suitable for carbon fiber manufacture. Soluble, aromatic-organometallic compounds are added to a carbonaceous feedstock which is substantially free of mesophase pi... | 08/03/1999 |
| 5846405 | Process oils and manufacturing process for such using aromatic enrichment and two pass hydrofinishing A method for producing a process oil is provided in which an aromatic extract oil is added to a napthenic rich feed. The combined feed is then hydrotreated in a first hydrotreating stage to convert at least a portion of sulfur and nitrogen in the feed to ... | 12/08/1998 |
| 5843302 | Solvent deasphalting unit capable of generating power Solvent deasphalting apparatus includes a separator that receives two inputs, a heavy hydrocarbon feed and a solvent feed; and the apparatus produces two outputs, an asphaltene/solvent stream and a deasphalted oil/solvent stream. A solvent recovery unit o... | 12/01/1998 |
