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| Number | Title | Issue Date |
| 7357565 | Fluid injector and mixer apparatus An improved injector which mixes a secondary fluid into a carrier fluid stream has (a) a body for directing the flow of the carrier fluid, this body having an internal wall forming a flow passage therethrough, a central axis, an inlet, an outlet, and a port for rece... | 04/15/2008 |
| 6245216 | Method for fluidizing tars Process for the preparation of an aqueous tar suspoemulsion by mixing a mixture including (a) a viscous tar composition formed from a tar, from inorganic solids and, optionally, from water, (b) water (W), (c) a surface-active agent (SA) exhibiting an HLB ... | 06/12/2001 |
| 6004455 | Solvent-free method and apparatus for removing bituminous oil from oil sands A sand/liquid separator provides for the conditioning of oil sands. Clean sand is separated from the ore and discharged for use as backfill. The sand/liquid separator machine includes horizontal shafts with paddles that act on a fluidized bed. The overall... | 12/21/1999 |
| 5269910 | Method of coil liquefaction by hydrogenation A method for hydro-liquefying coal, the method comprising preheating a slurried mixture of a pulverized coal and a solvent, the preheated mixture being supplied to a plurality of reactors; separating a gaseous content from the products resulting from the ... | 12/14/1993 |
| 5264118 | Pipeline conditioning process for mined oil-sand As-mined, naturally water-wet oil sand is mixed at the mine site with hot water and NaOH to produce a slurry containing entrained air. The slurry is pumped through a pipeline and is fed directly to a conventional gravity separation vessel. The pipeline is... | 11/23/1993 |
| 5156734 | Enhanced efficiency hydrocarbon eduction process and apparatus A system and process for educing hydrocarbons from shale. The system comprises a retort vessel which has an integral apparatus for mixing raw and recycle shale that embodies raw shale pulverizing and has an integral apparatus for finally pulverizing the r... | 10/20/1992 |
| 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 |
| 5008005 | Integrated coke, asphalt and jet fuel production process and apparatus A process and apparatus for the production of coke, asphalt and jet fuel m a feed of fossil fuels containing volatile carbon compounds therein is disclosed. The process includes the steps of pyrolyzing the feed in an entrained bed pyrolyzing means, separ... | 04/16/1991 |
| 4798668 | Extraction of hydrocarbon-containing solids Hydrocarbon liquids are recovered from oil shale and other solids containing organic material by heating the solids to a temperature below about 900° F., preferably between about 550° F. and about 900° F., in the absence of an added liquid organic solv... | 01/17/1989 |
| 4737267 | Oil shale processing apparatus and method A method and apparatus for the recovery of bitumen oils from oil shale. The method comprises crushing the oil shale to a predetermined particle size and mixing with an organic solvent to form a slurry. The slurry is then subjected to supercritical tempera... | 04/12/1988 |
| 4695373 | Extraction of hydrocarbon-containing solids Hydrocarbon liquids are recovered from oil shale and other solids containing organic material by heating the solids to a temperature below about 900° F., preferably between about 550° F. and about 900° F., in the absence of an added liquid organic solv... | 09/22/1987 |
| 4692238 | Solvent extraction of organic oils and solvent recovery A process for recovery of organic oils and residues in association with inorganic solids by solvent extraction and for the recovery of solvent used for the extraction. The organic solvent extracted inorganic solids having remaining associated organic solv... | 09/08/1987 |
| 4690732 | Apparatus for shale oil retorting A shale oil retorting system and novel continuous feed means for retorting oil shale within a retort housing employs a tilted circular conveyor within the housing which allows for continuous feeding of crushed oil shale within the conveyor for subsequent ... | 09/01/1987 |
| 4683063 | Method for carrying out extractions in subterranean well The present invention relates generally to improvements in processes and apparatus for effecting solvent extractions using liquefied gas or gases in the supercritical state as the solvents and specifically to continuous processes for carrying out such ext... | 07/28/1987 |
| 4597852 | Static mixer retorting of oil shale Oil shale is well mixed and efficiently, effectively, and economically retorted in a special gravity flow retorting process and system which utilizes novel arrangements of internal baffles in a static mixer.... | 07/01/1986 |
| 4545892 | Treatment of primary tailings and middlings from the hot water extraction process for recovering bitumen from tar sand The primary tailings and middlings are combined and fed to a vessel having the general form of a deep cone thickener. The feed is deflected outwardly and generally horizontally by a baffle, as it is delivered to the vessel. Simultaneously, the outwardly r... | 10/08/1985 |
| 4539093 | Extraction process and apparatus for hydrocarbon containing ores There is provided a hydrocarbon extraction process and apparatus for removing hydrocarbons from a hydrocarbon containing ore such as a diatomite ore. The ore is preprocessed to the extent required to produce an extractable ore and subsequently mixed with ... | 09/03/1985 |
| 4490237 | Process for recovering heat from the combustion of residual carbon in oil depleted shale As hot oil depleted shale from an indirect retorting process passes downward through a vertical shaft furnace, the residual carbon in the shale is burned out in the upper portion by air fed into the top of the furnace. The temperature of combustion is mod... | 12/25/1984 |
| 4481099 | Solvent extraction method A method is disclosed for solvent-extracting an extractable component from a mixture including the extractable component and subdivided solids, comprising: (a) maintaining a vertically extending bed comprising said solids in a vertically extending extract... | 11/06/1984 |
| 4477332 | Solubilization of carbonaceous material Pulverized carbonaceous material such as coal while flowing through a reactor dispersed in a carrier gas substantially transparent to radiant energy and at atmospheric pressure is heated, typically for a few milliseconds to about 1500° K., by thermal rad... | 10/16/1984 |
| 4470899 | Bitumen recovery from tar sands A process for recovering bitumen from tar sands wherein the tar sands are pretreated with a diluent, such as kerosene in the preferred embodiment, to lower the viscosity of the bitumen such that it is in the range of about 5 to about 20 poise at the diges... | 09/11/1984 |
| 4457826 | Prevention of deleterious deposits in a coal liquefaction system A process for preventing the formation of deleterious coke deposits on the walls of coal liquefaction reactor vessels involves passing hydrogen and a feed slurry comprising feed coal and recycle liquid solvent to a coal liquefaction reaction zone while im... | 07/03/1984 |
| 4410416 | Split hub wheel apparatus and use of same for shale oil retorting A shale oil retort apparatus is provided for retorting oil shale under airtight conditions. The retort apparatus employs a split hub wheel device which allows for the axial feeding of crushed oil shale and the axial dispensing of spent oil shale. The reto... | 10/18/1983 |
| 4401551 | Solvent extraction method A method for extracting bitumen from bituminous sand is disclosed, in which the bituminous sand is contacted with previously recovered bitumen at a temperature sufficient to maintain the previously recovered bitumen as a liquid, and the resulting liquids ... | 08/30/1983 |
| 4396489 | Method and apparatus for deashing coal liquefaction effluents An improved method and apparatus for deashing an effluent slurry from a coal liquefaction process is provided. A mixture of relatively coarse coal-derived solids and a precipitating solvent is stirred with the effluent slurry to form hard, discrete agglom... | 08/02/1983 |
| 4389300 | Solvent extraction method A method for solvent extracting extractable materials from solids is disclosed, which includes (a) maintaining a vertically extending bed comprising said solids in a vertically extending extraction zone and introducing said mixture into an upper portion o... | 06/21/1983 |
| 4387016 | Method for extraction of bituminous material A process for separating and recovering bituminous material from tar sand and other viscous petroleum deposits, either in-situ or after mining the deposits. The process may also apply to heavy oil wells and to secondary and tertiary recovery of oil from w... | 06/07/1983 |
| 4376693 | Solid liquid extraction A process for replacing a solution obtained for instance by exposing oil shale particles to the action of a solvent under supercritical conditions, by a solvent is provided for. The solid/solution mixture is extracted in a multitude of cross flow extracti... | 03/15/1983 |
| 4361476 | Process and apparatus for recovery of oil from tar sands A crude oil product is extracted from a tar sand by first crushing the tar sand as mined and then fine grinding the crushed material in a grinding mill in the presence of a cleansing liquid, such as an aqueous solution of a caustic. The resulting slurry i... | 11/30/1982 |
| 4342639 | Process to separate bituminous material from sand (Tar Sands) Bituminous sand such as oil sand or tar sand is mixed with a halogenated organic solvent which has a density greater than that of water at the same temperature. The slurry is continuously transferred to a conveyor system which is at least partially submer... | 08/03/1982 |
| 4309269 | Coal-oil slurry pipeline process A process for conveniently transporting particulate coal and crude oil together as a slurry through a pipeline. The coal, having particle size of 20-350 mesh size range, is added to the oil in sufficient amount to form a transportable coal-oil slurry. The... | 01/05/1982 |
| 4303494 | Continuous reaction/separation method for nucleated growth reactions A solid product resulting from the nucleated growth of the product on solid material of either the same or different composition and having a density higher than the reaction medium is formed from one or more liquid phase reactants by a method which compr... | 12/01/1981 |
| 4248692 | Process for the discharge of ash concentrate from a coal deashing system A process for removing an agglomerate of accumulated materials including ash concentrate which collects within the first heavy phase withdrawal conduit of a coal deashing system employing solvent at elevated temperatures and pressures near the critical te... | 02/03/1981 |
| 4243511 | Process for suppressing carbonate decomposition in vapor phase water retorting Oil shale containing relatively large quantities of alkaline carbonate minerals is retorted utilizing superheated water vapor at temperatures of from about 425° C. to about 510° C. Retorting with a sufficient carbon dioxide partial pressure effectively ... | 01/06/1981 |
| 4227990 | Thermal cracking of retort oil The thermal cracking of retort oil vapors in an elongated reactor is improved by passing the effluent oil vapors and gases from a retort to a thermal cracking unit before the temperature of the retort effluent falls below 680° F. This encourages the more... | 10/14/1980 |
| 4199432 | Staged turbulent bed retorting process A continuous process is disclosed for the retorting of shale and other similar hydrocarbon-containing solids of a broad particle size distribution in which the solids to be retorted are introduced into an upper portion of an elongated vessel with a solid ... | 04/22/1980 |
| 4189376 | Solvent extraction process A method is disclosed for solvent-extracting an extractable component from a mixture including the extractable component and subdivided solids, comprising: (a) maintaining a vertically extending bed comprising the solids in an extraction zone and introduc... | 02/19/1980 |
| 4157245 | Countercurrent plug-like flow of two solids A process is disclosed for contacting at least two solids and a fluid, particularly for retorting and/or gasification of solid carbonaceous materials such as coal, coke, shale or tar sands by introducing a solid heat-transfer material into an upper portio... | 06/05/1979 |
| 4140583 | Processing of lignite for petrochemicals Process and apparatus for producing ethylene from lignite and subbituminous coal by chemical condition and temperature control using cellulosic material within the treated mass or added thereto whereby ethylene gas is evolved from such carbonacous feed an... | 02/20/1979 |
| 4120775 | Process and apparatus for separating coarse sand particles and recovering bitumen from tar sands A system for effecting a sharp separation from tar sands of the large weight fraction of coarse materials present therein and for recovering bitumen, or tar, from the remaining product, wherein, as a first step, finely divided particles of a tar sand are ... | 10/17/1978 |
