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| Number | Title | Issue Date |
| 7419585 | Process for upgrading residua A process for upgrading a residua feedstock using a short vapor contact time thermal process unit comprised of a horizontal moving bed of fluidized hot particles. The residua feedstock is preferably atomized so that the Sauter mean diameter of the residua feedstock ... | 09/02/2008 |
| 7112311 | Cooling method of hydrotreating plant and cooling unit therefor A cooling method of a hydrotreating plant having a desulfurization section (1) including a furnace (12) for heating liquid to be processed, reactors (14, 15) for hydrotreating sulfur to generate hydrogen sulfide, a hydrogen sulfide absorber (... | 09/26/2006 |
| 6709573 | Process for the recovery of hydrocarbon fractions from hydrocarbonaceous solids Process and apparatus for extraction of oil and hydrocarbons from crushed hydrocarbonaceous solids, such as oil shale, involving the pyrolyzing of the crushed solids with liquid hydrocarbon and syn gas rich in hydrogen and carbon dioxide. Crushed hydrocarbonaceous s... | 03/23/2004 |
| 6592747 | Method of controlling additives in copper plating baths Organic addition agents in copper plating baths are monitored by diluting a sample of the bath with sulfuric acid and hydrochloric acid and optionally a cupric salt. The diluting provides a bath having conventional concentrations of cupric ion, sulfuric a... | 07/15/2003 |
| 6365038 | Method of producing combustible products from heavy fuel residue Asphaltene and oil shale are pyrolyzed at substantially atmospheric pressure for producing combustible products and carbonaceous material. A combustor combusts the carbonaceous material and produces flue gases which are supplied to a utilization device, a... | 04/02/2002 |
| 5928495 | Emulsion for heavy oil dilution and method of using same A surfactant which is capable being used to enhance accessing, storing and transporting carbonaceous materials such as crude oil or coal. The surfactant includes a dielectric surfactant having a predetermined range of pH. The dielectric surfactant may inc... | 07/27/1999 |
| 5911541 | Thin layer solvent extraction A method for separating hydrocarbons from a soil, e.g. to separate bitumen from oil sands, involves mixing the soil thoroughly with water and a supply of buoyant beads having surfaces that are of oleophilic material and coated with a surface layer of hydr... | 06/15/1999 |
| 5858247 | Sludge demulsification process and agents The invention involves the demulsification and liquefaction of hydrocarbon based sludges. A demulsifier and a liquefaction agent and methods of using the same are disclosed. In a preferred embodiment, the demulsifier contains a salt of DDBSA, polypropylen... | 01/12/1999 |
| 5676711 | Oil conversion process An improved process for producing a low-sulfur fuel oil or gas from used oil and finely divided coal. After mixing, the coal/oil slurry is heated within a pressure vessel to a temperature of approximately 850° F. and the pressure increased to approximate... | 10/14/1997 |
| 5505839 | Method of coal liquefaction A method of coal liquefaction comprising the steps of: (a) producing a coal slurry from a pulverized coal and a solvent; (b) compressing a coke oven gas to prepare a compressed gas; (c) reacting the coal slurry with the compressed gas in a reactor under a... | 04/09/1996 |
| 5474582 | Coal-water mixtures from low rank coal and process of preparation thereof A process for preparing a coal-water fuel from a low rank coal. The first step of the process provides for an aqueous slurry containing particles of the low rank coal. A quantity of an agglomerating agent in the range of about 10% to 30% weight to dry ash... | 12/12/1995 |
| 5372708 | Method for the exploitation of oil shales The invention relates to a process for the exploitation of oil shales wherein the two main constituents thereof, organic and inorganic moieties, are transformed into valuable products. It was found that oil shales which possess a high amount of inorganic ... | 12/13/1994 |
| 5338322 | Process for converting heavy oil deposited on coal to distillable oil in a low severity process A process for removing oil from coal fines that have been agglomerated or blended with heavy oil comprises the steps of heating the coal fines to temperatures over 350° C. up to 450° C. in an inert atmosphere, such as steam or nitrogen, to convert some ... | 08/16/1994 |
| 5200063 | Coal hydroconversion process comprising solvent enhanced pretreatment with carbon monoxide This invention is directed to a staged process for producing liquids from coal or similar carbonaceous feeds combining a pretreatment stage and a liquefaction stage. In the process, the feed is dispersed in an organic solvent and reacted with carbon monox... | 04/06/1993 |
| 5120429 | Co-processing of carbonaceous solids and petroleum oil In a process for producing distillates from coal by a first stage thermal liquefaction followed by a catalytic hydrogenation, liquefaction solvent is added at points spaced over the length of the thermal liquefaction heater. Coal may be co-processed with ... | 06/09/1992 |
| 5091076 | Acid treatment of kerogen-agglomerated oil shale A kerogen-agglomerated oil shale is contacted with an acid-containing solution prior to economically upgrade the oil shale prior to retorting. The kerogen is agglomerated by contacting the oil shale with a two phase mixture of an organic liquid and water ... | 02/25/1992 |
| 5064523 | Process for the hydrogenative conversion of heavy oils and residual oils, used oils and waste oils, mixed with sewage sludge Process for the hydrogenative conversion of heavy oils and residual oils, used oils and waste oils, mixed with sewage sludge in a typical liquid phase hydrogenator with gases containing hydrogen, with the addition of a finely ground substance that prefera... | 11/12/1991 |
| 5047143 | Method for converting lower grade uintaite to higher grade materials I disclose a method for upgrading low-grade uintaite to high-grade uintaite having a desired meltpoint. It comprises dissolving the uintaite in a medium polarity solvent, mixing the dissolved uintaite with a nonpolar saturated hydrocarbon solvent at a vol... | 09/10/1991 |
| 5041209 | Process for removing heavy metal compounds from heavy crude oil A process is provided for removing heavy metal compounds from heavy crude oil by mixing the heavy crude oil with tar sand; preheating the mixture to a temperature of about 650° F.; heating said mixture to up to 800° F.; and separating tar sand from the ... | 08/20/1991 |
| 5013428 | Recovery of oil from a shale containing the same Enhanced recovery of oil from an oil-containing particulate shale sludge is achieved by contacting the sludge with a light hydrocarbon solvent fraction, obtained from the processing of oil derived from the shale, in the presence of water to form an oil-so... | 05/07/1991 |
| 4994174 | Process and system for low-temperature carbonization of oil shale, oil sands or similar oil-bearing solids A process and system for low-temperature carbonization of oil shale, oil sands and similar oil-bearing solids includes low-temperature carbonization of oil-bearing solids in a high-pressure fluidized bed reactor in the presence of a substance selected fro... | 02/19/1991 |
| 4944866 | Process for the hydrogenation of coal A process for the hydrogenation of coal which entails slurrying pulverized coal with oil, hydrogenating the mixture at an elevated temperature and pressure and separating the liquid and solid reaction products from the gaseous reaction products, wherein t... | 07/31/1990 |
| 4941966 | Process for the hydrogenative conversion of heavy oils and residual oils A process for the hydrogenative conversion of mixtures of oil and organic waste products, comprising the steps of: (i) preparing a hydrogenation mixture comprising (a) a heavy oil, residual oil, or mixtures thereof, or (b) a used oil, a waste oil or mixtures thereo... | 07/17/1990 |
| 4853111 | Two-stage co-processing of coal/oil feedstocks A process for two-stage catalytic co-processing of coal and heavy petroleum hydrocarbon liquid fractions to produce increased yields of low-boiling hydrocarbon liquid and gas products. In the process, the particulate coal is slurried with a petroleum resi... | 08/01/1989 |
| 4842692 | Chemical reformer A method and system of continually reforming sewage and other organic materials into liquid oils and gases by pyrolysis using the containing and entrained water in the inorganic and organic constituents of the sewage.... | 06/27/1989 |
| 4740294 | Method for sequentially co-processing heavy hydrocarbon and carbonaceous materials A method for sequentially co-processing heavy hydrocarbon materials and carbonaceous materials comprising first subjecting the heavy hydrocarbon material in the presence of a disposable metal catalyst to produce and separate therefrom a first distillate s... | 04/26/1988 |
| 4722783 | Conditioning of recycle shale in retorting process Burned oil shale recycled as heat transfer solids in retorting process conditioned under reducing conditions with hydrocarbon to improve product yield.... | 02/02/1988 |
| 4664788 | Multi-stage coal liquefaction and fractionation method A multi-stage coal liquefaction method in which coal is slurried with a primary light solvent, such as toluene, hexane and/or cyclohexane, and a process-derived primary heavy solvent. The coal-primary solvent slurry is treated under coal-liquefying condit... | 05/12/1987 |
| 4571294 | Process for extracting hydrocarbons from hydrocarbon bearing ores Hydrocarbons may be recovered from hydrocarbon-bearing ore by reducing the ore to small particles, forming the reduced ore into pellets, setting the pellets, and then contacting the pellets with an extracting solvent. The extracted hydrocarbons usually ha... | 02/18/1986 |
| 4541916 | Coal liquefaction process using low grade crude oil A process for converting coal to liquid hydrocarbonaceous products involving a liquefaction reaction in the presence of a coal derived recycle slurry and a non-coal derived solvent comprising a hydrocarbonaceous oil or distillation bottom residue thereof ... | 09/17/1985 |
| 4539098 | Upgrading carbonaceous materials Recycle shale oil is used in an extractive pyrolysis process of oil shale. Hot gases from the pyrolyzer are used to preheat the shale.... | 09/03/1985 |
| 4536277 | Shale oil stabilization with a hydrogen donor quench and a hydrogen transfer catalyst A process is provided to produce and stabilize shale oil. In the process, raw oil shale is retorted with heat carrier material to liberate an effluent product stream comprising hydrocarbons and entrained particulates of oil shale dust. In order to minimiz... | 08/20/1985 |
| 4536278 | Shale oil stabilization with a hydrogen donor quench A process is provided to produce and stabilize shale oil. In the process, raw oil shale is retorted with heat carrier material to liberate an effluent product stream comprising hydrocarbons and entrained particulates of oil shale dust. In order to minimiz... | 08/20/1985 |
| 4536279 | Enhanced recovery of hydrocarbonaceous fluids from oil shale The present application relates to a method for enhancing the recovery of hydrocarbonaceous fluids from oil shale containing organic carbon material which comprises heating the oil shale in a retort vessel to a temperature at which thermal decomposition o... | 08/20/1985 |
| 4533460 | Oil shale extraction process Hydrocarbon liquids are recovered from oil shale and other solids containing organic matter by passing a liquid organic solvent downwardly through an extraction zone in contact with said solids at an elevated pressure sufficient to maintain said solvent i... | 08/06/1985 |
| 4522700 | Coal liquefaction In a two-stage liquefaction wherein coal, hydrogen and liquefaction solvent are contacted in a first thermal liquefaction zone, followed by recovery of an essentially ash free liquid and a pumpable stream of insoluble material, which includes 850° F.+ li... | 06/11/1985 |
| 4510037 | Hydrogenation process for solid carbonaceous feed materials using thermal countercurrent flow reaction zone Thermal hydrogenation of solids-containing carbonaceous feed materials to produce hydrocarbon gaseous and liquid products is performed in a thermal reaction zone, in which the feed material flows generally downwardly countercurrent to upflowing hydrogen a... | 04/09/1985 |
| 4510038 | Coal liquefaction using vacuum distillation and an external residuum feed A process for liquefying coal in which a slurry comprising a petroleum or petroleum-derived solvent and particulate coal is heated in a dissolution zone to substantially dissolve the coal and produce a first effluent containing undissolved solids to which... | 04/09/1985 |
| 4468315 | Hydrogenation of coal A process for hydrogenating coal which has been mixed with oils, by bringing the coal slurry to the reaction pressure by pumping, heating the slurry and catalytically hydrogenating it with hydrogen, wherein some or all of the hot gases and vapors formed d... | 08/28/1984 |
| 4464246 | Reagent and process for recovering oil and kerogens from oil shale A process and reagent for the recovery of kerogen and oil from associated substrate solids and for producing pumpable liquid from high molecular weight, high viscosity crude oils in which a reagent comprising a mixture of trichloro-isocyanuric acid and a ... | 08/07/1984 |
