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| Number | Title | Issue Date |
| 8119014 | Systems and methods to remove liquid product and fines from a slurry reactor The present invention provides methods and means for separating slurry liquid from catalyst in a three-phase slurry process. The embodiments of the invention are characterized by conducting the three-phase process under conditions to provide an upper region in the s... | 02/21/2012 |
| 7754663 | Premium wear-resistant lubricant containing non-ionic ashless anti-wear additives A premium wear resistant lubricant comprises a base stock, preferably a GTL liquid or the liquid isomerization product of slack wax or F-T wax, and a non-ionic ashless anti-wear additive. The non-ionic ashless antiwear additive is preferably at least one of thiosali... | 07/13/2010 |
| 7611551 | Method for reducing the freezing point of aminated aviation gasoline by the use of tertiaryamylphenylamine A method is disclosed for reducing the freezing point of unleaded aminated aviation gasoline to −58° C. or lower by the addition of tert-amylphenylamine. ... | 11/03/2009 |
| 7465389 | Production of extra-heavy lube oils from Fischer-Tropsch wax Extra heavy lube base stocks are separated from heavy lube oils with a polar solvent in an amount sufficient to form a first light phase and a second heavy phase. The phases are then separated and the solvent is removed from the second heavy phase to yield an extra ... | 12/16/2008 |
| 7445648 | Wax blends for candles with improved properties The present invention relates to a set of wax parameter specifications that will produce candles with improved properties. Specifically, the present invention relates to a blend of waxes that produces container candles with surprising properties and eliminates or mi... | 11/04/2008 |
| 7435333 | Upgrading asphaltene containing oils A method for reducing the viscosity and surface wetting tendency of an oil containing hydrophilic aspaltenes comprises adding to said oil an amount of hydrophobic asphaltenes in the range of 1 to 80 wt % based on weight of the hydrophilic asphaltense of said oil. | 10/14/2008 |
| 7419940 | Borated-epoxidized polybutenes as low-ash anti-wear additives for lubricants An engine lubricant that is substantially free of zinc and phosphorous contains an antiwear additive comprising borated 1,2 epoxy mixed polybutenes having an average carbon number in the range of C20 to about C120. ... | 09/02/2008 |
| 7419928 | Fischer-Tropsch catalyst production A process for enhancing the activity of a catalyst metal particulate for hydrogenation reactions comprising calcining the particulate in an oxidant-containing atmosphere to partially oxidize it thereby forming a porous layer of oxides thereon, treating with an solut... | 09/02/2008 |
| 7417073 | Preparation of titania and cobalt aluminate catalyst supports and their use in Fischer-Tropsch synthesis Supports for Fischer-Tropsch catalysts are formed by forming a particulate material from titania, alumina and optionally silica. A cobalt compound is incorporated into the particulate material which then is calcined to convert at least part of the alumina to cobalt ... | 08/26/2008 |
| 7399736 | Low viscosity, high abrasion resistance engine oil composition An engine oil composition that has lower viscosity then the lowest viscosity grade specified by the current standard (SAE (Society of Automotive Engineers) viscosity classification) and achieves excellent abrasion resistance under conditions of high temperature and ... | 07/15/2008 |
| 7361619 | Fischer-Tropsch catalyst production Dispersed Active Metal catalyst for hydrogenation reactions is produced by treating a substantially catalytically inactive metal particulate with a solution capable of oxidizing the metal particulate and comprising of at least one compound of a hydrogenation catalys... | 04/22/2008 |
| 7253644 | Apparatus and method for measuring electrochemical and viscoelastic properties of a liquid An apparatus for measuring electrochemical and viscoelastic properties of a liquid includes two sensing components, an electrochemical impediance spectroscopy component and a quartz crystal microbalance component positioned within a housing for receiving a liquid fo... | 08/07/2007 |
| 7253136 | Preparation of titania and cobalt aluminate catalyst supports and their use in Fischer-Tropsch synthesis Supports for Fischer-Tropsch catalysts are formed by forming a particulate material from titania, alumina and optionally silica. A cobalt compound is incorporated into the particulate material which then is calcined to convert at least part of the alumina to cobalt ... | 08/07/2007 |
| 7132042 | Production of fuels and lube oils from fischer-tropsch wax Dewaxed fuel and lubricant base stocks are made by (a) producing a synthesis gas from natural gas, (b) reacting the H2 and CO in the gas in the presence of a cobalt Fischer-Tropsch catalyst, at reaction conditions effective to synthesize a waxy hydrocarbo... | 11/07/2006 |
| RE39073 | Slurry bubble column (C-2391) The present invention is a method for optimally operating a three phase slurry bubble column. The constituents of the three phases, gas, liquid, and solids, are determined by the chemical reaction in the column. The method includes injecting the gas phase into the c... | 04/18/2006 |
| 6787496 | Supported catalyst treatment There is provided a process for renewing the activity of supported metal catalysts for the hydrogenation of carbon monoxide to form a mixture of hydrocarbons comprising decreasing the hydrocarbon content of the catalyst, preferably by contact with hydrogen-containin... | 09/07/2004 |
| 6787576 | Linear alpha olefins from natural gas-derived synthesis gas over a nonshifting cobalt catalyst Linear alpha olefins having from four to twenty carbon atoms and low amounts of oxygenates are synthesized, by producing a synthesis gas containing H2 and CO from natural gas and passing it over a non-shifting cobalt catalyst at reaction conditions of tem... | 09/07/2004 |
| 6777584 | Selective coupling of terminal olefins with ethylene to manufacture linear α-olefins A process for producing a linear α-olefin which comprises: reacting a stoichiometric excess of a terminal Cn olefin with ethylene in the presence of an organometallic catalyst to produce a Cn+2 linear α-olefin, wherein the catalyst is capable... | 08/17/2004 |
| 6761818 | Heavy oil-solid composition and method for preparing the same The invention includes a compositon of matter comprising a heavy oil having dispersed therein surface modified solid wherein said surface modified solids comprise solids having adsorbed thereon air oxidized polar hydrocarbons from said heavy oil and wherein said sur... | 07/13/2004 |
| 6750182 | Polar oil based industrial oils with enhanced sludge performance Ester based industrial oils containing acid scavengers exhibit improved sludge performance when a minor amount of hydrocarbon oil is included in the formulation. ... | 06/15/2004 |
| 6737175 | Metal dusting resistant copper based alloy surfaces A method for inhibiting metal dusting corrosion of surfaces exposed to supersaturated carbon environments comprising constructing said surfaces of, or coating said surfaces with a copper based alloy. The invention is also directed to a composition resistant to metal... | 05/18/2004 |
| 6736962 | Catalytic stripping for mercaptan removal (ECB-0004) A process for reducing the amount of mercaptan sulfur in a petroleum stream without significantly changing its octane value. The process comprising a three-phase system wherein the petroleum stream to be treated is passed through a fixed bed of catalyst in the prese... | 05/18/2004 |
| 6716886 | Fischer-tropsch catalyst enhancement (JSS-0005) A process of enhancing both the activity and the methane selectivity of a Dispersed Active Metal (“DAM”) hydrogenation catalyst is disclosed wherein the DAM undergoes low temperature oxidation in a slurry phase to form a stable, unique oxidized catalyst precurso... | 04/06/2004 |
| 6716358 | Demulsification of water-in-oil emulsions The invention includes a method for demulsification of water-in-oil emulsions. ... | 04/06/2004 |
| 6709571 | Low pressure naphtha hydrocracking process This invention is directed to an extinction recycle naphtha hydrocracking processes. Large pore zeolite catalysts with Constraint Indices less than 2, such as USY or beta, which are loaded with noble metals such as Pt or Pd or with transition metals such as Ni in co... | 03/23/2004 |
| 6706661 | Fischer-Tropsch catalyst enhancement A process of enhancing both the activity and the methane selectivity of a Dispersed Active Metal (“DAM”) hydrogenation catalyst is disclosed wherein the DAM undergoes low temperature oxidation in a slurry phase to form a stable, unique oxidized catalyst precurso... | 03/16/2004 |
| 6692711 | Production of low sulfur syngas from natural gas with C4+/C5+ hydrocarbon recovery Sour natural gas is processed to remove the sulfur compounds and recover C4+ /C5+ hydrocarbons by scrubbing the gas with an amine solution to remove most of the sulfur, followed cooling the gas to remove C4+ /C5+ | 02/17/2004 |
| 6677281 | Synergistic combination of metallic and ashless rust inhibitors to yield improved rust protection and demulsibility in dispersant-containing lubricants A lubricant having improved rust protection and demulsibility has a specific balance of an ashless dispersant and a rust inhibitor additive combination comprising a metallic and ashless rust inhibitor.... | 01/13/2004 |
| 6669872 | Electrical insulating oil with reduced gassing tendency An electrical oil having reduced gassing tendency includes a major amount of a paraffinic or naphthenic basestock and a blend of certain hindered phenols, especially a blend of 2,6-di-t-butyl phenol and 2,6-di-t-butyl cresol. A further enhanced gassing te... | 12/30/2003 |
| 6652772 | Phosphate ester base stocks comprising mixed n-butyl/isobutyl phosphate esters and aircraft hydraulic fluids comprising the same Disclosed are phosphate ester base fluids and aircraft hydraulic fluids containing mixed n-butyl/isobutyl phosphate ester components. The disclosed aircraft hydraulic fluids contain from about 30 to about 95 weight percent, based on the total weight of th... | 11/25/2003 |
| 6649080 | Phosphate ester base stocks and aircraft hydraulic fluids comprising the same Disclosed are phosphate ester base fluids and aircraft hydraulic fluids containing a novel combination of phosphate ester components. The disclosed aircraft hydraulic fluids contain from about 30 to about 45 weight percent, based on the total weight of th... | 11/18/2003 |
| 6642281 | Fischer-tropsch process There is provided an improved system and process for the catalytic hydrogenation of carbon monoxide to form a mixture of hydrocarbons utilizing a plurality of reactors in series. Synthesis gas entering the system under pressure is partially converted in a... | 11/04/2003 |
| 6624204 | Carbon monoxide hydrogenation process A method is disclosed for renewing the activity of a Dispersed Active Metal (DAM) catalyst during operation of a reactor wherein the hydrogenation of carbon monoxide to produce a mixture of hydrocarbons is being carried out comprising withdrawing a mixtur... | 09/23/2003 |
| 6599866 | Servo valve erosion inhibited aircraft hydraulic fluids The incorporation of a minor amount of a salt of pentafluorobenzene sulfonic acid to phosphate ester based functional fluids enhances the anti-erosion properties of the fluid.... | 07/29/2003 |
| 6454936 | Removal of acids from oils The instant invention is directed to a process for decreasing the amount of acids contained in oils by forming a water-in-oil emulsion and utilizing solids.... | 09/24/2002 |
| 6329434 | Catalytic partial oxidation with improved ignition system The instant invention is directed to a catalytic partial oxidation (CPO) process with improved ignition comprising; (a) igniting an ignition feed comprising hydrogen, diluent and oxygen in a catalytic partial oxidation catalyst bed wherein said ignition f... | 12/11/2001 |
| 6274026 | Electrochemical oxidation of sulfur compounds in naphtha using ionic liquids 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... | 08/14/2001 |
| 6251305 | Esterification of acidic crudes The present invention relates to a process for reducing the acidity of a petroleum oil containing organic acids comprising treating said petroleum oil containing organic acids with an effective amount of an alcohol at a temperature and under conditions su... | 06/26/2001 |
| 6240971 | Composite structures having improved containment strength Composite fiber reinforced structures, such as pipes or storage tanks, having improved resistance to microcracking and delamination and improved containment strength are disclosed. The walls of the structures comprise at least one layer comprising a plura... | 06/05/2001 |
| 6156189 | Operating method for fluid catalytic cracking involving alternating feed injection The present invention is directed to a Fluid Catalytic Cracking process conducted under fluid catalytic cracking conditions by injecting into at least one reaction zone of a fluid catalytic cracking unit (FCCU) having one or more risers, a plurality of fe... | 12/05/2000 |
