Hydrocarbon Oil Patents (Class 205/696)
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Patent number: 11028680Abstract: A system and method for hydraulically fracturing a geological formation with fracturing fluid to generate fractures in the geological formation and forming proppant in situ in the fractures by synthesizing mineral from ions in the fracturing fluid.Type: GrantFiled: May 26, 2020Date of Patent: June 8, 2021Assignee: Saudi Arabian Oil CompanyInventors: Desmond Schipper, Katherine Leigh Hull, Mohammad Hamidul Haque
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Publication number: 20140311919Abstract: A device for treating liquid carbonous fuel having external and internal electrodes having a dielectric insert positioned between and coaxially arranged to form a treatment chamber. The chamber is connected to a fuel line by an-outlet channel located along the longitudinal axis of the electrodes and at least one inlet channel disposed in the external electrode, wherein the inlet and outlet channels are embodied according to a relationship (1), wherein Siin is the cross-section area of an i-th inlet channel, n is the number of inlet channels and Sout is the cross-section area of the outlet channel. ? i = 1 n ? ? S iin = ( 0.1 2.Type: ApplicationFiled: February 25, 2014Publication date: October 23, 2014Applicant: EKOM USAInventors: Sergei Vladimirovich Tuev, Viktor Mihailovich Mamchenko, Aleksei Valer'evich Bagryancev
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Publication number: 20140231271Abstract: A novel process for metal content reduction of hydrocarbon oil is disclosed, which is primarily aimed at reduction of vanadium and nickel. The process uses electricity to accelerate the demetallation process, but only the flow of electrons of the electric current is used to expedite the reaction, instead of the electrolysis effect of the electric current. The process is carried out by adding inter-phase surface active reagent and phase transfer catalyst at a relatively low temperature range of 80 to 200° C. and achieves metal content reduction for vanadium and nickel. Aqueous phase alcoholic derivatives of amine solution is treated with hydrogen sulfide, carbon dioxide, etc. by additive reaction to render it more suitable for carrying more electric current and make them more active for metal reduction.Type: ApplicationFiled: October 12, 2012Publication date: August 21, 2014Inventors: Madhusudan Sau, Ganesh Vitthalrao Butley, Yamini Gupta, Karumanchi Ramesh, Mainak Sarkar, Arangarasu Arun, Saeed Ahmed, Brijesh Kumar, Ravindra Kumar Malhotra
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Patent number: 8764967Abstract: A method and system for regenerating used cooking oil in which the used cooking oil is introduced into a cooking oil regenerator, which includes an electrochemical device having a high temperature proton exchange membrane disposed between an anode electrode and a cathode electrode. A voltage is applied between the anode electrode and the cathode electrode using an external electricity source, producing regenerated cooking oil.Type: GrantFiled: July 31, 2009Date of Patent: July 1, 2014Assignee: Gas Technology InstituteInventor: Qinbai Fan
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Patent number: 8557101Abstract: This invention relates to a process for electrochemical conversion of dibenzothiophene type molecules of petroleum feedstreams selectively to mercaptan compounds that can then be more easily removed from the electrochemically treated product stream by either caustic extraction or thermal decomposition of the thiol functionality to hydrogen sulfide. The conversion of dibenzothiophenes to mercaptans is performed by electrochemical means in the substantial absence of hydrogen and in the substantial absence of water.Type: GrantFiled: September 14, 2011Date of Patent: October 15, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Mark A. Greaney, Kun Wang, Frank C. Wang
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Patent number: 8444843Abstract: An electrocatalytic process to remove organic sulfur compounds from a mixture of water containing a miscible electrolyte and a hydrocarbon feedstock involving the application of a current of electricity to cause the dissociation of the water which produces hydrogen at a catalytic cathode which reduces the organic sulfur compounds in the hydrocarbon with the evolution of H2S which is separated and collected, and the separation and collection of the treated hydrocarbon.Type: GrantFiled: April 15, 2010Date of Patent: May 21, 2013Assignee: Saudi Arabian Oil CompanyInventors: Mohamed Elanany, Esam Z. Hamad
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Patent number: 8333883Abstract: An electrolytic method for extracting components from subsurface strata including providing a carrier fluid; providing a pair of electrodes within a container, the container having a first outlet located proximal to a first electrode of the pair of electrodes and a second outlet located proximal to a second electrode of the pair of electrodes; flowing the carrier fluid through the container; applying a potential to the pair of electrodes to produce a first ionized carrier fluid and a second ionized carrier fluid in the container; removing the first ionized carrier fluid from the container through their respective outlets; injecting one of the first ionized carrier fluid and the second ionized carrier fluid into the subsurface strata to release the components; and recovering one of the first ionized carrier fluid and second ionized carrier fluid and components from the subsurface strata.Type: GrantFiled: November 19, 2010Date of Patent: December 18, 2012Assignee: Strategic Resource Optimization, LLCInventors: Michael J. Peters, David D. Faulder
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Patent number: 8177963Abstract: This invention relates to the partial hydrogenation of sulfur containing petroleum feedstreams by electrochemical means. The partially hydrogenated feedstream is then conducted to processes for either conversion and removal of at least some of the sulfur-containing species from the electrochemical desulfurization process or adsorption and removal of at least some of the sulfur-containing species from the electrochemical desulfurization process.Type: GrantFiled: October 21, 2008Date of Patent: May 15, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Mark A. Greaney, Kun Wang, Frank C. Wang
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Patent number: 8157981Abstract: The present electrolytic system and method for extracting components includes a means for providing a carrier fluid; a means for providing a pair of electrodes interposed by a permeable membrane to create a first channel and a second channel; a means for flowing the carrier fluid through the first and second channel; a means for applying a voltage to the pair of electrodes to produce a first ionized carrier fluid in the first channel and a second ionized carrier fluid in the second channel; a means for injecting at least one of the first ionized carrier fluid and the second ionized carrier fluid into the subsurface reservoir to release the components; and a means for recovering the at least one of the first ionized carrier fluid and the second ionized carrier fluid and the components from a subsurface strata or ex-situ mineral deposit.Type: GrantFiled: November 22, 2006Date of Patent: April 17, 2012Assignee: Strategic Resource Optimization, LLCInventors: Michael J. Peters, David D. Faulder
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Publication number: 20120000792Abstract: This invention relates to a process for electrochemical conversion of dibenzothiophene type molecules of petroleum feedstreams selectively to mercaptan compounds that can then be more easily removed from the electrochemically treated product stream by either caustic extraction or thermal decomposition of the thiol functionality to hydrogen sulfide. The conversion of dibenzothiophenes to mercaptans is performed by electrochemical means in the substantial absence of hydrogen and in the substantial absence of water.Type: ApplicationFiled: September 14, 2011Publication date: January 5, 2012Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Mark A. Greaney, Kun Wang, Frank C. Wang
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Patent number: 7985332Abstract: The electrodesulfurization of heavy oil feedstreams is accomplished wherein a heavy oil feedstreams, along with hydrogen, is passed the cathode side of an electrochemical cell wherein the organically bound sulfur compounds in the heavy oil are reduced and the sulfur is released as hydrogen sulfide. The hydrogen sulfide can be fed directly into the anode side of the electrochemical cell to produce sulfur and hydrogen or it can be passed to an oxidation zone containing an aqueous solution of an oxidized metal salt.Type: GrantFiled: October 21, 2008Date of Patent: July 26, 2011Assignee: ExxonMobil Research and Engineering CompanyInventors: Mark A. Greaney, Kun Wang, James R. Bielenberg, Douglas W. Hissong
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Patent number: 7670474Abstract: A method of reduction reclamation of an oil or prevention of oxidation degradation of the oil of the present invention includes: using an electrolytic cell 13 having an anode 11 and a cathode 12 made of a hydrogen storage material, and inside of the cell divided by the cathode 12 into an electrolytic chamber 13A and a reduction chamber 12A; supplying the oil to the reduction chamber 12A while applying an electric voltage between the anode 11 and the cathode 12 to electrolyze an electrolytic solution supplied to the electrolytic chamber 13 (Translator's comment: correctly, 13A); and absorbing hydrogen generated on the cathode 12 in the electrolytic chamber 13A in the cathode 12 to reduce the oil in the reduction chamber 12A, the method for reduction reclamation of the oil or prevention of oxidation degradation of the oil allowing continuous treatment.Type: GrantFiled: March 5, 2004Date of Patent: March 2, 2010Assignee: Idemitsu Kosan Co., Ltd.Inventors: Saburo Koyama, Fumiaki Takagi, Toshio Fuchigami
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Patent number: 7497939Abstract: A method for producing vegetable oil fuel with low viscosity, including a transesterification step P1 with respect to vegetable oil with triglyceride structure having unsaturated fatty acid, an ozone treatment step P2 with respect to unsaturated fatty acid methyl ester generated in the transesterification step P1, and a reduction step P3 with respect to the ozonide generated in the ozone treatment step P2.Type: GrantFiled: October 6, 2003Date of Patent: March 3, 2009Assignees: Foundation For Advancement of International ScienceInventors: Masatoshi Matsumura, Nestor Urian Soriano, Jr., Veronica P. Migo, Nakao Nomura
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Patent number: 7431818Abstract: A fuel system for an energy conversion device includes a deoxygenator system with an electrochemical conversion system to remove oxygen from fuel through conversion of the oxygen to water. The electrochemical conversion system is located within a fuel flow. On the fuel side ½O2+2H++2e?=>H2O while on the reverse side the opposite reaction occurs. From the electrochemical conversion system the water is then collected and/or expelled from the system.Type: GrantFiled: March 26, 2004Date of Patent: October 7, 2008Assignee: United Technologies CorporationInventor: Ned Emidio Cipollini
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Patent number: 7378012Abstract: A method for reforming a lubricating oil which includes holding stably a container (6) containing a lubricating oil (5) on a stand (4) being insulated from the earth with four high-voltage insulators (3), and applying an electrostatic potential of 30 to 50 volts by the use of an electrostatic charge generating device (7), to thereby charge electrons to the lubricating oil (5). The charge of electrons converts an unsaturated hydrocarbon (1a) and an aromatic hydrocarbon (2a) in the lubricating oil (5) to a saturated hydrocarbon (1b) or (2b) and a naphthenic hydrocarbon (2c), which reduces the viscosity of the lubricating oil. Accordingly, the use of the lubricating oil (5) in an internal combustion engine lowers the friction resistance therein, which leads to a decrease in the fuel consumption of the engine. The method allows, therefore, the enhancement of fuel economy, in combination with the suppression of oxidation of the lubricating oil itself.Type: GrantFiled: November 19, 2002Date of Patent: May 27, 2008Inventor: Naoto Yokoo
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Patent number: 7198712Abstract: For desulfurization and, if necessary, for denitrification of hydrocarbon fractions the hydrocarbon mixture is brought into contact with a non-aqueous ionic liquid of general formula Q+A?, wherein Q+ is a ammonium, phosphonium or sulfonium cation, that contains at least one alkylating agent of the formula RX?, making it possible to form ionic sulfur-containing derivatives (and, if necessary, nitrogen-containing derivatives) that have a preferred solubility in the ionic liquid; and the ionic liquid is separated from the hydrocarbon mixture that is low in sulfur and nitrogen by decanting.Type: GrantFiled: June 17, 2003Date of Patent: April 3, 2007Assignee: Institut Francais du PetroleInventors: Helene Olivier-Bourbigou, Denis Uzio, Lionel Magna, Fabrice Diehl
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Patent number: 6825367Abstract: A method of electrochemically hydrogenating an oil, the method comprising reacting unsaturated fatty acids in the oil with hydrogen in the presence of a formate electrocatalyst.Type: GrantFiled: March 21, 2003Date of Patent: November 30, 2004Assignee: Board of Trustees of Southern Illinois UniversityInventors: Shashi B. Lalvani, Kanchan Mondal
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Patent number: 6478947Abstract: Glycerin is effectively produced from a waste oil by a method comprising adding a strongly alkaline reducing water obtained by electrolyzing water containing sodium chloride to a waste oil selected from the group consisting of a waste edible oil, a fossil fuel waste oil and a mixture thereof, and extracting natural glycerin or synthetic glycerin by chemical reaction. Further, reusable edible oil is produced from a waste edible oil by a method comprising electrolyzing an aqueous solution having an electrolyte in an electrolytic cell, mixing a strongly alkaline reducing water generated at a cathode side of the electrolytic cell with a waste edible oil under ordinary temperature condition, and conducting oil/water separation, thereby purifying the waste edible oil to an extent such that it can be edible.Type: GrantFiled: January 12, 2001Date of Patent: November 12, 2002Assignee: Komeisha CorporationInventors: Kohji Nagasaku, Akira Matsunaga, Sungrak Jang
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Patent number: 6344132Abstract: An apparatus for sterilizing a water-soluble lubricant which comprises a container in which an anode and a cathode are arranged and supplied with a voltage, a partition arranged so as to divide said container into a cathode section, into which a water-soluble lubricant is introduced, and an anode section, into which an electrically conductive material is introduced, and a diaphragm provided in at least a portion of the partition such that an electric current flows between said anode and said cathode, the cathode being an electrode generating a substance sterilizing the lubricant.Type: GrantFiled: December 28, 1999Date of Patent: February 5, 2002Assignee: Nippon Mitsubishi Oil CorporationInventors: Takayuki Hirayama, Futoshi Sunada, Haruyoshi Mizuta, Shusaku Sakata
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Patent number: 6338788Abstract: An embodiment of the invention is directed to an electrochemical process for removing polymerizable sulfur compounds from a hydrocarbon feed by (a) combining a solvent and electrolyte with a feed comprising hydrocarbon and polymerizable sulfur compounds to form a first mixture; (b) passing said first mixture into an electrochemical reactor to electrochemically oxidize said polymerizable sulfur compounds in said mixture under conditions capable of producing sulfur oligomers from said polymerizable sulfur compounds; (c) separating said oxidized first mixture to obtain a desulfurized hydrocarbon feed, and a second mixture comprising sulfur oligomers, solvent and electrolyte.Type: GrantFiled: March 28, 2000Date of Patent: January 15, 2002Assignee: ExxonMobil Research and Engineering CompanyInventor: Robert Charles Schucker
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Patent number: 6303019Abstract: The present invention is a process to reduce the fouling of equipment for processing petroleum feedstreams. The steps of the process include mixing the feedstream with an aqueous electrolyte forming an oil-in-water dispersion, passing the dispersion through an electrochemical cell, passing a low voltage current through the dispersion, and separating the phases of the dispersion. The oil phase can then be further processed with minimum fouling of the equipment. The water phase is recycled for dispersing fresh petroleum.Type: GrantFiled: April 18, 2000Date of Patent: October 16, 2001Assignee: Exxon Research and Engineering CompanyInventors: Michael Siskin, Mark A. Greaney, Glen E. Phillips
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Patent number: 6274026Abstract: The instant invention is directed to an electrochemical process for removing sulfur from a stream comprising hydrocarbon and polymerizable sulfur compounds comprising: (a) combining a hydrocarbon feed containing polymerizable sulfur compounds with a ionic liquid; (b) electrochemically oxidizing said combination of step (a) in an electrochemical reactor, under conditions capable of producing sulfur oligomers from said polymerizable sulfur compounds to obtain a first fraction comprising sulfur oligomers, ionic liquid, and entrained hydrocarbon, and a second fraction comprising desulfurized hydrocarbon feed; (c) recovering said first fraction and said second fraction.Type: GrantFiled: March 31, 2000Date of Patent: August 14, 2001Assignee: ExxonMobil Research and Engineering CompanyInventors: Robert Charles Schucker, William Chalmers Baird, Jr.
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Patent number: 6218556Abstract: An electrochemical process for hydrogenating an unsaturated fatty acid, mixtures of two or more fatty acids, or the unsaturated fatty acid constituents of an edible or non-edible oil's triglycerides is performed using a solid polymer electrolyte reactor. Membrane electrode assemblies consist of a cation exchange membrane onto which porous anode and cathode electrodes are attached. As the electrodes are permeable, reactant and products enter and leave the membrane/cathode and membrane/anode reaction zones via the back sides of the electrodes. Hydrogen is generated in situ by the electro-reduction of protons that are formed at the anode and which migrate through the ion exchange membrane for reaction with the fifty acids or fatty acid constituents. In the disclosed process, only protons (H+ ions) carry the current between the anode and the cathode. The need for a supporting electrolyte to conduct electricity has been circumvented.Type: GrantFiled: November 12, 1996Date of Patent: April 17, 2001Assignee: The Administrators of the Tulane Educational FundInventor: Peter N. Pintauro
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Patent number: 6190428Abstract: The present invention is, in one aspect, a process for removing low-valent sulfur from carbon containing such low-valent sulfur (sulfur-containing carbon), having the step of contacting the sulfur-containing carbon with a platinum oxide in an aqueous environment, for a time sufficient to remove a desired amount of low-valent sulfur from the sulfur-containing carbon, especially from the surface of the carbon. Another aspect of the invention is an electrode, comprising an electrocatalyst or active material for a fuel cell or battery, disposed in a carbon matrix, where the carbon matrix is essentially free of low-valent sulfur adjacent to the active material of the battery electrode or electrocatalyst of the fuel cell electrode. Such an electrode will be suitable for use in a fuel cell or in a battery. Another aspect of the invention is a fuel cell or a battery using this electrode.Type: GrantFiled: March 25, 1996Date of Patent: February 20, 2001Assignee: The United States of America as represented by the Secretary of the NavyInventors: Debra R. Rolison, Karen E. Swider
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Patent number: 6136178Abstract: Wastewater containing a surfactant and an oil content that has been emulsified by the action of the surfactant can be freed of the oil content by a method including feeding the wastewater into the anode compartment, for electrolysis, of a diaphragm electrolyzer having an anode and a cathode provided in the anode compartment and a cathode compartment, respectively, which are spaced apart by a porous diaphragm and which are supplied with a dc voltage between the anode and the cathode, passing part of the electrolyzed wastewater through the diaphragm so that it enters the cathode compartment, discharging the influent from the cathode compartment, discharging the remainder of the electrolyzed wastewater from the anode compartment and introducing the same into the intermediate portion of a gas-liquid separator, withdrawing part of the influent from the top of the gas-liquid separator and introducing the same into a layer packed with an adhering material, where it is brought into contact with the adhering material,Type: GrantFiled: November 18, 1998Date of Patent: October 24, 2000Assignee: Ebara CorporationInventors: Qingquan Su, Michihiro Noda
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Patent number: 6113765Abstract: A method of increasing the efficiency of the electrostatic separation of a continuous hydrocarbon emulsions or dispersion by increasing the electrical conductivity of the emulsion or dispersion. An increase in electrical conductivity is provided with an effective amount of an electrically conductive agent (conductivity modifier). Examples of electrically conductive agents are antistatic agents such as anionic, cationic, nonionic and amphoteric surfactants.Type: GrantFiled: October 16, 1998Date of Patent: September 5, 2000Assignee: The Texas A&M University SystemInventors: John P. Wagner, James B. Nelson
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Patent number: 6110352Abstract: Wastewater containing a surfactant and an oil content that has been emulsified by the action of the surfactant can be freed of the oil content by a method including feeding the wastewater into the anode compartment, for electrolysis, of a diaphragm electrolyzer having an anode and a cathode provided in the anode compartment and a cathode compartment, respectively, which are spaced apart by a porous diaphragm and which are supplied with a dc voltage between the anode and the cathode, passing part of the electrolyzed wastewater through the diaphragm so that it enters the cathode compartment, discharging the influent from the cathode compartment, discharging the remainder of the electrolyzed wastewater from the anode compartment and introducing the same into the intermediate portion of a gas-liquid separator, withdrawing part of the influent from the top of the gas-liquid separator and introducing the same into a layer packed with an adhering material, where it is brought into contact with the adhering material,Type: GrantFiled: November 18, 1998Date of Patent: August 29, 2000Assignee: Ebara CorporationInventors: Qingquan Su, Hiroaki Sato, Michihiro Noda
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Patent number: 6093307Abstract: Wastewater containing a surfactant and an oil content that has been emulsified by the action of the surfactant can be freed of the oil content by a method to including feeding the wastewater into the anode compartment, for electrolysis, of a diaphragm electrolyzer having an anode and a cathode provided in the anode compartment and a cathode compartment, respectively, which are spaced apart by a porous diaphragm and which are supplied with a dc voltage between said anode and cathode, passing part of the electrolyzed wastewater through the diaphragm so that it enters the cathode compartment, discharging the influent from the cathode compartment, discharging the remainder of said electrolyzed wastewater from the anode compartment and introducing the same into the intermediate portion of a gas-liquid separator, withdrawing part of the influent from the top of the gas-liquid separator and introducing the same into a layer packed with an adhering material, where it is brought into contact with the adhering materialType: GrantFiled: November 18, 1998Date of Patent: July 25, 2000Assignee: Ebara CorporationInventors: Qingquan Su, Hiroaki Sato, Michihiro Noda
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Patent number: 6030536Abstract: A method for easily decomposing viscous, solidified spilled fuel oil or crude oil containing sea water and other disposal inhibiting substances. Titanium dioxide particles are added to viscous spilled fuel oil recovered in drums in a weight ratio of at least 0.2 to 1 times. Fuel oil is specifically adsorbed by the adsorbent and the mixture can be suspended in water. The suspension is filtered by a coarse filter to remove substances interfering with disposal by the oil. This filtrate is passed through a high performance filter (of sufficiently fine mesh to retain the adsorbent) so that the adsorbent is recovered, and sea water and other substances are discarded.Type: GrantFiled: March 26, 1998Date of Patent: February 29, 2000Assignee: Japan Cycle Nuclear Development InstituteInventors: Yukio Wada, Kazumasa Kosugi, Masaki Ozawa, Kaoru Sugawara, Hidechiyo Kashihara, Nobuyuki Sasao
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Patent number: 5965008Abstract: The present invention provides for a method for decreasing the Conradson carbon content of petroleum streams by forming a mixture of the petroleum stream and an essentially aqueous electrolysis medium, and passing an electric current through the mixture at an anodic voltage and pH sufficient to produce a petroleum fraction having decreased Conradson carbon content. The anodic voltage is from +0.5 to +1.5V vs. SCE. Preferably the pH is acidic. The invention provides a method for enhancing the value of petroleum feeds that traditionally have limited use in refineries.Type: GrantFiled: December 20, 1996Date of Patent: October 12, 1999Assignee: Exxon Research and Engineering CompanyInventors: Mark Alan Greaney, Michael Charles Kerby
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Patent number: 5942101Abstract: The present invention provides for a process for electrochemically decreasing the Conradson carbon number of petroleum streams by contacting a Conradson carbon containing petroleum stream and an aqueous electrolysis medium with a low hydrogen overpotential metal cathode at an electric current and pH sufficient to decrease the Conradson carbon of the petroleum stream. The cathode voltage is from 0 V to -3.0 V vs. SCE at a pH of from 7 to 14. The cathode material typically is stainless steel, chromium, copper and nickel.Type: GrantFiled: December 9, 1997Date of Patent: August 24, 1999Assignee: Exxon Research and Engineering Co.Inventor: Mark Alan Greaney
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Patent number: 5911869Abstract: The present invention provides for a process for electrochemically demetallating petroleum streams by contacting a hydrocarbon-soluble metals containing petroleum stream and an aqueous electrolysis medium with a low hydrogen overpotential metal cathode at an electric current and pH sufficient to demetallate the petroleum stream. The cathode voltage is from 0 V to -3.0 V vs. SCE at a pH of from 7 to 14. The cathode material typically is stainless steel, chromium, copper and nickel.Type: GrantFiled: December 9, 1997Date of Patent: June 15, 1999Assignee: Exxon Research and Engineering Co.Inventor: Mark Alan Greaney
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Patent number: 5879529Abstract: The present invention provides for a method of decreasing the Conradson carbon content of metal containing petroleum streams by forming a mixture of the Conradson carbon containing petroleum fraction and an aqueous electrolysis medium containing an electron transfer agent, and passing an electric current through the mixture or optionally through the pretreated aqueous electrolysis medium at a voltage, sufficient to decrease the Concarbon content of the stream. The cathodic voltage is from 0 V to -3.0 V vs. SCE. The invention provides a method for enhancing the value of petroleum feeds that traditionally have limited use in refineries.Type: GrantFiled: July 15, 1997Date of Patent: March 9, 1999Assignee: Exxon Research and Engineering CompanyInventors: Mark Alan Greaney, William Neergaard Olmstead
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Patent number: 5876589Abstract: Wastewater containing a surfactant and an oil content that has been emulsified by the action of the surfactant can be freed of the oil content by a method including feeding the wastewater into the anode compartment, for electrolysis, of a diaphragm electrolyzer having an anode and a cathode provided in the anode compartment and a cathode compartment, respectively, which are spaced apart by a porous diaphragm and which are supplied with a dc voltage between the anode and the cathode, passing part of the electrolyzed wastewater through the diaphragm so that it enters the cathode compartment, discharging the influent from the cathode compartment, discharging the remainder of the electrolyzed wastewater from the anode compartment and introducing the same into the intermediate portion of a gas-liquid separator, withdrawing part of the influent from the top of the gas-liquid separator and introducing the same into a layer packed with an adhering material, where it is brought into contact with the adhering material,Type: GrantFiled: December 13, 1996Date of Patent: March 2, 1999Assignee: Ebara CorporationInventors: Qingquan Su, Hiroaki Sato, Michihiro Noda
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Patent number: 5855764Abstract: The present invention provides for a method of decreasing the metals content of metal containing petroleum streams by forming a mixture of the petroleum fraction containing those metals and an aqueous electrolysis medium containing electron transfer agent, and passing an electric current through the mixture or through the pretreated aqueous electrolysis medium at a voltage, sufficient to remove the metals such as Ni, V and Fe from the stream (i.e. to produce a petroleum fraction having decreased content of the metals). The cathodic voltage is from 0 V to -3.0 V vs. SCE. The invention provides a method for enhancing the value of petroleum feeds that traditionally have limited use in refineries due to their metals, e.g., Ni and V content.Type: GrantFiled: July 15, 1997Date of Patent: January 5, 1999Assignee: Exxon Research and Engineering CompanyInventors: Mark Alan Greaney, William Neergaard Olmstead
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Patent number: 5855760Abstract: There are disclosed a process for the electrochemical decomposition of organic pollutants in an acidic solution to carbon dioxide performed in a electrochemical system comprising a working electrode and an auxiliary electrode with oxygen at ambient temperature and at a reductive potential or current, wherein the working electrode used is a graphite-containing electrode.Type: GrantFiled: April 25, 1997Date of Patent: January 5, 1999Inventors: Jyh-Myng Zen, Yao-Jung Chen
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Patent number: 5843301Abstract: A process and system for converting petroleum residue ("resid") into a liquid product and a solid product. The resid is first mixed with a solvent having a generally nonpolar molecular character. A strong electric field is then applied to the mixture to agglomerate the asphaltenes and other large molecules in the resid. The agglomerates are then separated from the remaining liquid, thereby producing liquid and solid products. The liquid product is useful as a feedstock for petrochemicals and transportation fuels, and the solid product is suitable for combustion as a coal substitute. A portion of the liquid product may be recycled as the solvent.Type: GrantFiled: October 9, 1996Date of Patent: December 1, 1998Assignee: OCET CorporationInventors: Ernest P. Esztergar, John L. Remo
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Patent number: 5817228Abstract: The invention is a method for demetallating petroleum streams by subjecting a hydrocarbon soluble metals-containing petroleum stream and an aqueous electrolysis medium to a sufficient anodic potential at a pH sufficient to produce a treated petroleum stream having a decreased metals content. The invention is useful for enhancing the value of petroleum streams that traditionally have limited use in refineries due to their content of metals, particularly Ni and V.Type: GrantFiled: December 20, 1996Date of Patent: October 6, 1998Assignee: Exxon Research and Engineering CompanyInventors: Mark Alan Greaney, Michael Charles Kerby
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Patent number: 5723039Abstract: A process for purifying a liquid hydrocarbon feedstock containing organo-sulfur compounds wherein an aqueous sulfuric acid solution containing ions of a transition metal, such as vanadium, chromium, manganese, cobalt, cerium or mixtures thereof, is subject to electrolysis to oxidize the metal ions to a higher oxidation state, the electrolyzed solution is emulsified with the feedstock to achieve oxidation of the organo-sulfur compounds to form water soluble sulfur compounds, gaseous products, resinous products; the spent aqueous acidic solution and the purified hydrocarbon product are separated and the spent aqueous solution is recycled via electrolysis.Type: GrantFiled: April 11, 1996Date of Patent: March 3, 1998Assignee: Catalytic Sciences, Ltd.Inventors: Alexandr Vasilievich Zosimov, Valeriy Vasilievich Lunin, Yuriy Mikhailovich Maksimov
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Patent number: 5702588Abstract: A method of separating soap fibers from the liquid phase component of grease to prepare the fibers for microscopic analysis includes the steps of admixing a sample of the grease with a solvent to remove the liquid phase component from the fibers and provide a final liquid product having the fibers in suspension therein, contacting the final product with a pair of spaced electrodes, applying a direct voltage across the electrodes to charge the same positive and negative respectively, and withdrawing for analysis a small quantity of the final product from a region thereof proximate the negative electrode after the voltage has been applied for a predetermined energization period. The withdrawn quantity may be deposited on a polished carbon stub and further prepared for analysis by a scanning electron microscope.Type: GrantFiled: September 23, 1996Date of Patent: December 30, 1997Assignee: Semtech, Inc.Inventors: Michael R. Funk, Larry E. Irwin, Michael D. Foster
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Patent number: 5665221Abstract: A device is placed in a container containing flowing fluid to neutralize fluid contaminants and prevent their deposition on the walls of the container. The device includes a weak electrical current generator having an electric half-cell that forms an electric circuit with the earth-grounded container via the liquid and generates electrons to neutralize the charged contaminants. The generator includes one or more cupriferous tubes containing a mixture of vegetable oil, and powders of copper, zinc, manganese, cellulose and predominantly iron. Preferably, each tube contains:vegetable oil--5.0-20.0%iron powder--50.0-80.0%copper powder--2.0-10.0%zinc powder--2.0-10.0%manganese powder--2.0-10.0%cellulose powder--2.0-15.0%trace minerals--.ltoreq.0.50%.This device may be placed in the line of flow of a deep oil well to prevent deposition of paraffin and other contaminants onto the walls of the pipeline.Type: GrantFiled: December 3, 1996Date of Patent: September 9, 1997Assignee: A Rx Technologies Inc.Inventor: Bruce W. Owen
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Patent number: 5534124Abstract: An electrochemical process and system for dehalogenating halogenated hydrocarbons. The process facilitates on-site processing and transformation of waste oils, PCB oils in electrical transformers and chlorinated solvents to salts. The system includes a two-piece tubular structure including an electrical insulating member, an electrode member having perforations leading into a hollow vessel portion. The process includes, by example, reacting the halogenated hydrocarbon compound with at least one metal hydroxide selected from a metallic hydroxide group consisting of sodium hydroxide, calcium hydroxide, zinc hydroxide, and potassium hydroxide in the presence of an alcohol selected from an alcohol group consisting of methanol, ethanol, or isopropanol. The tubular structure is inserted into the container and energized by applying a voltage to the electrode member.Type: GrantFiled: September 19, 1995Date of Patent: July 9, 1996Assignee: Chem-ProInventor: Patrick A. Rundhaug
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Patent number: 5529684Abstract: The present invention provides for a method of decreasing the metals content of metal containing petroleum streams by forming a mixture of the petroleum fraction containing those metals and an essentially aqueous electrolysis medium, and passing an electric current through the mixture at a voltage, pH and time sufficient to remove the metals such as Ni, V and Fe from the stream (i.e. to produce a petroleum fraction having decreased content of the metals). The cathodic voltage is from 0 V to -3.0 V vs. SCE at a pH of from 6 to 14, preferably 7 to 14, most preferably above 7 to 14.The invention provides a method for enhancing the value of petroleum feeds that traditionally have limited use in refineries due to their Ni and V content.Type: GrantFiled: May 12, 1995Date of Patent: June 25, 1996Assignee: Exxon Research and Engineering CompanyInventors: Mark A. Greaney, Michael C. Kerby, Jr., William N. Olmstead, Irwin A. Wiehe
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Patent number: 5514252Abstract: The present invention provides a method for decreasing the Conradson carbon ("Concarbon") number of petroleum feedstreams by passing an electric current through a mixture of a petroleum stream, typically having a Conradson carbon residue of at least about 0.1% and an aqueous electrolysis medium at a pH and cathodic voltage for a time sufficient to decrease the Conradson carbon number of the petroleum stream. The electrolysis medium contains quaternary carbyl or hydrocarbyl onium salts; inorganic hydroxides such as NaOH or KOH, or mixtures thereof. A cathodic voltage of 0 V to -3.0 V vs. Saturated Calomel Electrode (SCE) and a pH of 6-14, preferably 7 to 14, more preferably above 7 to 14 are used.The invention has utility for converting less economically desirable refinery feeds to feeds that are more valuable.Type: GrantFiled: May 12, 1995Date of Patent: May 7, 1996Assignee: Exxon Research and Engineering CompanyInventors: Michael C. Kerby, Jr., Mark A. Greaney, Carl W. Hudson