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| Number | Title | Issue Date |
| 8366916 | Magnetic nanoparticle complex A magnetic nanoparticle complex includes a magnetic nanoparticle; and a ligand associated with the magnetic nanoparticle, the ligand including a functional group capable of combining with an acid component or a conjugate base of the acid component, in an oil. A meth... | 02/05/2013 |
| 8157986 | Magnetic nanoparticle complex A magnetic nanoparticle complex includes a magnetic nanoparticle; and a ligand associated with the magnetic nanoparticle, the ligand including a functional group capable of combining with an acid component or a conjugate base of the acid component, in an oil. A meth... | 04/17/2012 |
| 8137536 | Method for producing a crude product Methods and systems for contacting a crude feed that has a total acid number (TAN) of at least 0.3 with one or more catalysts produces a total product that includes a crude product are described. The one or more catalysts may include a first catalyst and a second ca... | 03/20/2012 |
| 8025794 | Systems, methods, and catalysts for producing a crude product Contact of a crude feed that has a viscosity of at least 10 cSt at 37.8° C. (100° F.) and an API gravity of at least 10 with one or more catalysts produces a total product that includes a crude product. The crude product is a liquid mixture at 25° C. and 0.101 MP... | 09/27/2011 |
| 7955499 | Systems, methods, and catalysts for producing a crude product Contact of a crude feed with one or more catalysts produces a total product that includes a crude product. The crude product is a liquid mixture at 25° C. and 0.101 MPa. The one or more catalysts may include a catalyst that has a median pore diameter of at least 90... | 06/07/2011 |
| 7628908 | Systems, methods, and catalysts for producing a crude product Systems and method for contacting a crude feed that has a total acid number of at least 0.1 with one or more catalysts produces a total product that includes a crude product are described. At least one of the catalysts includes vanadium. The crude product is a liqui... | 12/08/2009 |
| 7534342 | Systems, methods, and catalysts for producing a crude product Contact of a crude feed with one or more catalysts produces a total product that includes a crude product. The crude product is a liquid mixture at 25° C. and 0.101 MPa. The one or more catalysts may include a catalyst that has a median pore diameter of at least 90... | 05/19/2009 |
| 7507329 | Process for reducing the naphthenic acidity of petroleum oils or their fractions A process for reducing the naphthenic acidity of petroleum oils or their fractions is described, said process comprising providing a hydrocarbon feed 103/203/303 having between 0.1 and 99 wt % of emulsified/dispersed water in oil, said feed containing salts a... | 03/24/2009 |
| 7504023 | Process for reducing the naphthenic acidity of petroleum oils A process for reducing the naphthenic acidity of petroleum oils, or their liquid fractions, is described, the process comprising a thermal treatment of the petroleum oils, or their liquid fractions, in the presence of an adsorbent the surface of which is covered by ... | 03/17/2009 |
| 7419939 | Mineral acid enhanced thermal treatment for viscosity reduction of oils (ECB-0002) The invention describes a method for decreasing the viscosity of crude oils and residuum utilizing a combination of thermal and acidic treatment. Further, the invention describes a method for making a water-in-oil emulsion, or a solids-stabilized water-in-oil emulsi... | 09/02/2008 |
| 7399404 | Reduction of the content of compounds containing oxygen and/or nitrogen in material flows containing isobutene A process for reducing the content of oxygen-containing and/or nitrogen-containing compounds in streams having an isobutene content of at least 10% by weight, which comprises passing the stream in the liquid state at a temperature T [in K] and a linear velocity v [i... | 07/15/2008 |
| 7396450 | Method of reducing amount of peroxides, reducing fuel sediments and enhancing fuel system elastomer durability, fuel stability and fuel color durability A reduction in the formation and presence of peroxides in low sulfur diesel fuels is obtained through the combination of those fuels with an organic nitrate combustion improver. The reduction in the amount of peroxides means that the fuel system elastomers will be m... | 07/08/2008 |
| 7338924 | Oil-in-water-in-oil emulsion An oil-in-water-in-oil emulsion (O/W/O) comprising a first oil-in-water emulsion dispersed in a second oil, and a method of preparing the same. The O/W/O emulsion can be used as a drive fluid in an enhanced oil recovery process. The O/W/O emulsion of this invention ... | 03/04/2008 |
| 7303664 | Delayed coking process for producing free-flowing coke using a metals-containing additive A delayed coking process for making substantially free-flowing coke, preferably shot coke. A coker feedstock, such as a vacuum residuum, is heated in a heating zone to coking temperatures then conducted to a coking zone wherein volatiles are collected overhead and c... | 12/04/2007 |
| 7300568 | Method of manufacturing oxygenated fuel Disclosed is a process to improve the cetane number and emissions characteristics of a distillate feedstock by increasing the oxygen content of the feedstock by contacting the feedstock with an oxygen-containing gas in the oxidation zone at oxidation conditions in t... | 11/27/2007 |
| 7270741 | Method of purifying a water-rich stream produced during a fischer-tropsch reaction This invention relates to an improved method of separating non-acid chemicals from a water rich stream produced during a Fischer-Tropsch (FT) reaction. ... | 09/18/2007 |
| 7186673 | Stability enhanced water-in-oil emulsion and method for using same A method for enhancing the stability of a water-in-oil emulsion pretreating at least a portion of the oil prior to emulsification. The pretreatment step may consist of adding polymers to the oil, biotreating the oil, photochemically treating the oil, or combinations... | 03/06/2007 |
| 7127959 | Process for assessing inhibition of petroleum corrosion The present invention is an apparatus for simulating corrosion activity in liquid and vapor/condensate corrosion environments. The apparatus includes a container, including a lower region containing the liquid and an upper region, including a condenser, a heater for... | 10/31/2006 |
| 7121339 | Solids-stabilized oil-in-water emulsion and a method for preparing same A solids-stabilized oil-in-water emulsion and a method for preparing the solids-stabilized oil-in-water emulsion. The oil-in-water emulsion is formed by combining oil, water, solid particles and a pH enhancing agent and mixing until the solid-stabilized oil-in-water... | 10/17/2006 |
| 7117722 | Method for determining viscosity of water-in-oil emulsions Method to determine the viscosity of a water-in-oil emulsion that will be formed by an oil comprising organic acids when mixed with water comprising: determining the value of the expression: η ... | 10/10/2006 |
| 7029573 | Composition and control method for treating hydrocarbon The invention relates to a composition and method for treating liquid hydrocarbons in order to remove acidic impurities, such as mercaptans, particularly mercaptans having a molecular weight of about C4 (C4H10S=90 g/mole) and higher,... | 04/18/2006 |
| 7014751 | Continuous liquid hydrocarbon treatment method The invention relates to a method for treating and upgrading a hydrocarbon containing acidic species such as mercaptans, comprising: (a) contacting the hydrocarbon, in the essential absence of oxygen, with a first phase of a treatment composition containing w... | 03/21/2006 |
| 7001504 | Method for extraction of organosulfur compounds from hydrocarbons using ionic liquids A process for the removal of organosulfur compounds from hydrocarbon materials is disclosed. The process includes contacting an ionic liquid with a hydrocarbon material to extract sulfur-containing compounds into the ionic liquid. The sulfur-containing compounds can... | 02/21/2006 |
| 7002016 | Process for the preparation of threo-methylphenidate hydrochloride The present invention provides a process for the preparation of threo-methylphenidate hydrochloride. According to a preferred embodiment, the process comprises the following steps: (a) contacting 1-(phenylglyoxylyl)piperidine arene... | 02/21/2006 |
| 6960291 | Naphtha desulfurization method The invention relates to a method for desulfurizing naphtha boiling-range hydrocarbons such as cracked naphtha. More particularly, the invention relates to hydrotreating the naphtha under selective hydrotreating conditions, and then removing mercaptans from the hydr... | 11/01/2005 |
| 6955753 | Treatment of crude oils A process and apparatus to extract and recover heavy metals and sulfur from crude oil or petroleum fuel products including the steps of emulsifying the crude oil with an emulsifying agent, adding a leach solution to the emulsified crude oil and leaching the emulsifi... | 10/18/2005 |
| 6902662 | Method of reducing hydrolysis in hydrocarbon streams A method of reducing hydrolysis in a hydrocarbon stream comprising adding to a hydrocarbon stream containing a chloride compound which undergoes hydrolysis at elevated temperatures in the presence of water to form hydrochloric acid, an effective amount of a treating... | 06/07/2005 |
| 6887370 | Separation of oxygenates from a hydrocarbon stream This invention relates to a method for separating olefins and paraffins from oxygenates in a liquid hydrocarbon stream containing a high proportion of olefins, paraffins and oxygenates (mainly alcohols). Typically, the hydrocarbon stream is obtained from a Fischer-T... | 05/03/2005 |
| 6855248 | Process for distilling fischer-tropsch derived paraffinic hydrocarbons A process for distilling paraffinic hydrocarbons comprises feeding a Fischer-Tropsh derived paraffinic hydrocarbon feedstock comprising heavy paraffinic hydrocarbons and, optionally, light and/or medium paraffinic hydrocarbons, into a distillation column. The distil... | 02/15/2005 |
| 6767452 | Process for treatment of petroleum acids The invention is a process for decreasing the acidity of an organic acid containing petroleum oil, comprising contacting said petroleum oil containing organic acids with an effective amount of an alcohol and an effective trace amount of a base selected from Group IA... | 07/27/2004 |
| 6716339 | Hydrotreating process with monolithic catalyst Liquid hydrocarbons such as gas oil feedstocks are hydrotreated by passing feedstreams comprising a hydrogen-containing gas and the liquid hydrocarbons through a catalyst bed comprising honeycomb or similarly structured monolithic hydrotreating catalysts at controll... | 04/06/2004 |
| 6679987 | Process for decreasing the acid content and corrosivity of crudes The invention relates to processes for treating acidic crudes or fractions thereof to reduce or eliminate their acidity and corrosivity by addition of suitable amounts of Group IA or Group IIA oxides, hydroxides and hydrates and Group IIA metal naphthenat... | 01/20/2004 |
| 6673238 | Acidic petroleum oil treatment A process for hydrotreating acidic compounds of an acidic petroleum oil is disclosed. The process includes contacting the acidic petroleum oil with a hydrogen donor solvent to thereby produce a treated petroleum oil. The process can further include contac... | 01/06/2004 |
| 6627069 | Method for reducing the naphthenic acid content of crude oil and its fractions The present invention relates to a process for reducing naphthenic acid content of crude oils and its fractions in the essential absence of oxygen and in the presence of an aqueous base selected from Group IA and IIA hydroxides and ammonium hydroxide and ... | 09/30/2003 |
| 6547957 | Process for upgrading a hydrocarbon oil A catalyst assisted upgrading process for treating a hydrocarbon oil feed to reduce total acid number (TAN) and increase API gravity is provided herein which employs a hydroprocessing catalyst based on a catalyst support, e.g., alumina. The process includ... | 04/15/2003 |
| 6531055 | Method for reducing the naphthenic acid content of crude oil and fractions The present invention relates to a process for reducing naphthenic acid content of crude oils and its fractions in the presence of an aqueous base selected from Group IA and IIA hydroxides and ammonium hydroxide and mixtures thereof, a phase transfer agen... | 03/11/2003 |
| 6483003 | Removal of impurities from a hydrocarbon component or fraction A process for removing impurities from a hydrocarbon component or fraction comprises mixing, in a liquid-liquid extraction step, an impurity-containing liquid hydrocarbon component or fraction, as an impure liquid hydrocarbon feedstock, with an acetonitri... | 11/19/2002 |
| 6476284 | Method of dehalogenating hydrocarbon containing carbon-carbon double bond An efficient dehalogenation can be carried out by a method which comprises treating an organic compound containing a compound of halogen, such as fluorine or chlorine, as an impurity and having non-conjugated carbon-carbon double bonds, for example, buten... | 11/05/2002 |
| 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 |
| 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 |
