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| Number | Title | Issue Date |
| 8177960 | Asphaltene-stabilising molecules having a tetrapyrrolic ring Use of a biodegradable molecule or a mixture of biodegradable molecules having tetrapyrrolic rings, as stabilizers for the asphaltenes present in crude oil and crude oil derivatives. ... | 05/15/2012 |
| 8105479 | Process and apparatus for upgrading steam cracker tar-containing effluent using steam A process and apparatus are provided for the present invention relates to a process for upgrading tar-containing effluent from a steam cracker furnace that comprises: a) contacting a steam cracker tar-containing effluent with steam and for a time, sufficient to conv... | 01/31/2012 |
| 8043494 | Method for improving bitumen recovery from oil sands by production of surfactants from bitumen asphaltenes In a method for increasing the efficiency of bitumen recovery from oil sands, bitumen asphaltenes naturally present in the oil sands ore are treated with selected chemical agents to produce surfactants which reduce surface and interfacial tensions and promote the pr... | 10/25/2011 |
| 8007659 | Reduced puffing needle coke from coal tar distillate A reduced puffing needle coke is formed, which includes a reduced nitrogen content within the coke so that the coke particles do not experience as much puffing during the formation of graphitized carbon articles produced from such coke upon heating to graphitization... | 08/30/2011 |
| 8007658 | Reduced puffing needle coke from coal tar A reduced puffing needle coke is formed, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon heating to graphitization temperatures. ... | 08/30/2011 |
| 7837854 | Process and apparatus for upgrading steam cracked tar A process and apparatus are provided for upgrading steam cracked tars. The invention also relates to a steam cracking process and apparatus for reducing the yields of tars produced from steam cracking while increasing yields of higher value products, heating cooled ... | 11/23/2010 |
| 7674365 | Formulations useful as asphaltene dispersants in petroleum products A composition comprising: (i) a chelating aminocarboxylic acid-C8-C22 amine complex; (ii) a C15-C21 bis(2-hydroxyethyl)amide; and (iii) a C15-C44 imidazoline compound. ... | 03/09/2010 |
| 7582201 | Controlling tar by quenching cracked effluent from a liquid fed gas cracker In a system for thermal cracking gaseous feedstocks, the system including a gas cracker for producing an effluent comprising olefins, at least one transfer line exchanger for the recovery of process energy from the effluent and a water quench tower system, a process... | 09/01/2009 |
| 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 |
| 7374659 | Methods and systems for modifying asphalts A method for modifying asphalt comprises blowing an oxygen-containing gas through a base asphalt at a high gas flow rate while simultaneously agitating the base asphalt at a high shear rate and at an elevated temperature for a period of time that is effective to sub... | 05/20/2008 |
| 7341102 | Flue gas injection for heavy oil recovery A variety of methods for thermal recovery of natural gas and bitumen from a formation containing the latter. In general, the methods incorporate a series of existing, but previously uncombined technologies. A modified flue gas from the steam generators conventionall... | 03/11/2008 |
| 7318890 | Pitch fractionation and high softening point pitch A process for fractionating crude pitch by direct contact heating with molten metal is disclosed. The crude pitch, which may contain water, contaminants and/or distillables is heated by direct contact heat exchange with molten metal, preferably maintained as a metal... | 01/15/2008 |
| 7318891 | Noah's pitch process A process for producing pitch from pitch precursors, such as wood tar, coal tar or petroleum fractions is disclosed. Direct contact heat exchange of the pitch precursor with molten metal, preferably maintained as a metal continuous bath, heats the pitch precursor to... | 01/15/2008 |
| 7282135 | Low viscosity, high carbon yield pitch product A low viscosity, high coking value petroleum tar material having a high coking value as compared to standard petroleum tars and containing at least one biodiesel material dissolved therein, and a method for producing such material, are disclosed. ... | 10/16/2007 |
| 7279017 | Method for converting heavy oil residuum to a useful fuel A method for enabling the use of heavy oil residuum by conversion to a useful product. The method, in one embodiment, involves the use of a heavy oil residuum which is substantially non flowable. The viscosity of the residuum is reduced by heat or a combination of h... | 10/09/2007 |
| 7256157 | Carbon material for electric double layer capacitor electrodes A carbon material for electric double layer capacitor electrodes which is obtained by a heat treatment and an activation treatment of a material pitch having a softening point in a range of 150 to 350° C., a ratio of amounts by atom of hydrogen to carbon (H/C) in a... | 08/14/2007 |
| 7252755 | Viscosity modification of heavy hydrocarbons A low-viscosity, high-softening point heavy hydrocarbon material having a viscosity-reducing amount of at least one biodiesel material dissolved in a heavy hydrocarbon, and a method for producing such low-viscosity, high-softening point heavy hydrocarbon material ar... | 08/07/2007 |
| 7220348 | Method of producing high softening point pitch The present invention provides a way to increase the softening point of heavier hydrocarbons in a relatively low cost and low pressure process using superheated steam to i) increase the carbon yield of the heavier hydrocarbons, while simultaneously ii) removing vola... | 05/22/2007 |
| 7166237 | Pitch-based carbon foam heat sink with phase change material A process for producing a carbon foam heat sink is disclosed which obviates the need for conventional oxidative stabilization. The process employs mesophase or isotropic pitch and a simplified process using a single mold. The foam has a relatively uniform distributi... | 01/23/2007 |
| 7157019 | Pitch-based carbon foam heat sink with phase change material A process for producing a carbon foam heat sink is disclosed which obviates the need for conventional oxidative stabilization. The process employs mesophase or isotropic pitch and a simplified process using a single mold. The foam has a relatively uniform distributi... | 01/02/2007 |
| 7147214 | Humidifier for fuel cell using high conductivity carbon foam A method and apparatus of supplying humid air to a fuel cell is disclosed. The extremely high thermal conductivity of some graphite foams lends itself to enhance significantly the ability to humidify supply air for a fuel cell. By utilizing a high conductivity pitch... | 12/12/2006 |
| 7144498 | Supercritical hydrocarbon conversion process Supercritical conversion of hydrocarbons boiling above 538° C. (1000° F.) with a solvating hydrocarbon at a weight ratio of solvating hydrocarbon to high-boiling hydrocarbons of at least 2:1 and at conditions above the critical temperature and pressure of the high... | 12/05/2006 |
| 7135440 | Method for controlled placement of oilfield chemicals and composition useful for practicing same Disclosed is a method for introducing additives into an oil, gas, or water injection well or pipeline in solid form at a location other than at the bottom. The method is practiced using pellets having a density sufficient to suspend the pellet at a top phase, bottom... | 11/14/2006 |
| 7122112 | Compounds containing amide and carboxyl groups as asphaltene dispersants in crude oil A composition containing: (a) 0.001% to 20% of at least one compound represented by formula (II), wherein R5 is C1–C70 difunctional alkyl or C6–C14 difun... | 10/17/2006 |
| 7108780 | Oil desalting by forming unstable water-in-oil emulsions A method for determination for a given oil the relative stability of a water-in-oil emulsion that will be formed by that oil with water comprises measuring for the given oil the weight percent asphaltenes (A), total acid number (TAN), and ratio of the amount of naph... | 09/19/2006 |
| 7097759 | Carbonyl, thiocarbonyl or imine containing compounds as asphaltene dispersants in crude oil A method for dispersing asphaltenes in a petroleum product by adding to the petroleum product 0.001% to 20% of at least one compound having formula (V) wherein R14 is C15–C21 al... | 08/29/2006 |
| 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 |
| 7070755 | Pitch-based carbon foam and composites and use thereof A thermally conductive carbon foam is provided, normally having a thermal conductivity of at least 40 W/m·K. The carbon foam usually has a specific thermal conductivity, defined as the thermal conductivity divided by the density, of at least about 75 W·cm3 | 07/04/2006 |
| 7066997 | Coal tar and hydrocarbon mixture pitch and the preparation and use thereof A method of making the saturated aircraft brake preform using a coal tar pitch having a softening point in the range of about 160° C. to 240° C. Also, a product having natural rubber in the formulation and the method of making the product using a coal tar pitch ha... | 06/27/2006 |
| 7033485 | Coal tar and hydrocarbon mixture pitch production using a high efficiency evaporative distillation process Described are methods that utilize high efficiency evaporative distillation to make a high softening point coal tar pitch, a quinoline insoluble-free and ash-free coal tar pitch having a desired softening point, and a mesophase coal tar pitch. Each of the methods us... | 04/25/2006 |
| 7030284 | Method and reactor system for converting oxygenate contaminants in an MTO reactor system product effluent to hydrocarbons Disclosed is a method and reactor system for converting oxygenate and/or olefin contaminants in a methanol to olefin reactor system product effluent to hydrocarbons, including paraffin compounds, preferably over a sulphided catalyst of the type Nickel or Cobalt comb... | 04/18/2006 |
| 7029570 | Disaggregation of asphaltenes in incompatible petroleum oil mixtures The thermal decomposition of Athabasca asphaltene at relatively low ( | 04/18/2006 |
| 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 |
| 7014151 | Pitch-based carbon foam heat sink with phase change material A process for producing a carbon foam heat sink is disclosed which obviates the need for conventional oxidative stabilization. The process employs mesophase or isotropic pitch and a simplified process using a single mold. The foam has a relatively uniform distributi... | 03/21/2006 |
| 7008526 | Processes for producing coke, artificial graphite and carbon material for negative electrode of non-aqueous solvent type secondary battery and pitch composition used therefor When a pitch composition prepared by mixing 100 parts by weight of mesophase pitch with 10 to 1,000 parts by weight of coal tar pitch, is heat-treated at a temperature of 500° C. or higher, it is possible to produce a high-density coke at a high yield while avoidin... | 03/07/2006 |
| 6827841 | Low viscosity, high carbon yield pitch product A low viscosity, high coking value petroleum tar material having a high coking value as compared to standard petroleum tars and containing at least one biodiesel material dissolved therein, and a method for producing such material, are disclosed. ... | 12/07/2004 |
| 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 |
| 6733737 | Rapid oxidation/stabilization technique for carbon foams, carbon fibers and C/C composites An enhanced method for the post processing, i.e. oxidation or stabilization, of carbon materials including, but not limited to, carbon foams, carbon fibers, dense carbon-carbon composites, carbon/ceramic and carbon/metal composites, which method requires relatively ... | 05/11/2004 |
| 6689295 | Carbonaceous porous body and method for producing the same The present invention provides a method of manufacturing an exfoliated graphite/phenol resin composite foam of a porosity of 50-95%, a density of 0.1-0.8 g/cm3, by forming under contact pressure or reduced pressure at a temperature of 140-200°... | 02/10/2004 |
