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| Number | Title | Issue Date |
| 4120777 | Process for recovery of bituminous material from tar sands A process for the recovery of bituminous tar like materials from tar sands containing the same; the process includes mixing the tar sands with water, mildly heating the same in the presence of an alkali metal bicarbonate, gently mixing the mixture and whi... | 10/17/1978 |
| 4120781 | Process for reducing the level of radioactivity of a stream of light hydrocarbons The invention relates to a process for reducing the level of radioactivity of a stream of light hydrocarbons by passing the stream through sulfided solid particles.... | 10/17/1978 |
| 4119524 | Coal deashing process having improved solvent recovery techniques An improved coal deashing process wherein coal is mixed with a first dissolving solvent, solubilized and flashed to provide a prepared mixture, and the prepared mixture is mixed with a second dissolving solvent to produce a feed mixture. The insoluble coa... | 10/10/1978 |
| 4119523 | Processes for the production of deashed coal An improved coal deashing process wherein soluble dissolved coal present in the ash concentrate product stream from a critical solvent deashing process can be separated and recovered from the ash concentrate by at least two alternate processing systems. I... | 10/10/1978 |
| 4110204 | Process for removing polonium from natural gas condensates containing the same A process for removing polonium from hydrocarbons which process comprises contacting fluid polonium containing hydrocarbons with an ion exchange resin, having a dry surface area of at least 1 m2 /g and containing exchange groups selected from t... | 08/29/1978 |
| 4110194 | Process and apparatus for extracting bituminous oil from tar sands Tar sands are put into finely divided form, preferably by pressing them into sheets and flaking the sheets. The flakes are mixed with a solvent for the contained oils for a time sufficient to extract the oils. The resulting slurry is introduced beneath th... | 08/29/1978 |
| 4110193 | Process for production of hydrocarbonaceous fluids from solids such as coal and oil shale A retorting process for recovery of hydrocarbonaceous fluids from subdivided solid materials, specifically oil shale, is described wherein the subdivided solid material is preheated, retorted, and subjected to heat recovery after retorting, heat transfer ... | 08/29/1978 |
| 4097368 | Hydrocarbon conversion with an acidic multimetallic catalytic composite Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with an acidic multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a nickel component, a cobalt com... | 06/27/1978 |
| 4097360 | Quenching pyrolysis reactor effluent streams A continuous process recovers values from a solid carbonaceous material by directly contacting a stream containing volatilized hydrocarbons resulting from the pyrolysis of the solid carbonaceous material with incoming feed carbonaceous material to quench ... | 06/27/1978 |
| 4096057 | Apparatus and method for recovery of bituminous products from tar sands An apparatus and method for (1) reducing agglomerated masses of tar sand and (2) recovering as a bituminous product the bituminous matrix material therefrom. The apparatus includes a vessel which is divided into an attrition zone enclosed by a screen memb... | 06/20/1978 |
| 4094770 | Process for removing unfilterable solids from an oil A process is provided for removing unfilterable suspended solids from an oil wherein these solids are agglomerated to separable conglomerated solids by adding to the oil an agglomerating agent comprising a mixture of acetone and 2-butanone.... | 06/13/1978 |
| 4094781 | Separation of solids from tar sands extract Solids are separated from a tar sands extract by gravity settling or centrifugation in the presence of a liquid promoter which promotes and enhances the separation of the solid material. The liquid promoter has a characterization factor of at least 9.75, ... | 06/13/1978 |
| 4094768 | Separation of bitumen from tar sands using sulfur and water A relatively low temperature process for separating and recovering bitumen from natural tar sands wherein granular sulfur and water are mixed with the tar sand, in the presence of air, to form a sulfur-bitumen agglomerate which floats on the water, with r... | 06/13/1978 |
| 4094765 | Coal liquefaction process A coal liquefaction chargestock is first treated with a hydrogen sulfide-containing gas and thereafter subjected to coal liquefaction conditions.... | 06/13/1978 |
| 4094766 | Coal liquefaction product deashing process Liquefaction of coal is effected by extraction of coal by a distillable solvent in the presence of hydrogen under conditions selected to produce a coal liquefaction product, the major portion of which is distillable. The effluent slurry product is vacuum ... | 06/13/1978 |
| 4094767 | Fluidized bed retorting of tar sands Raw tar sand is treated in a fluidized bed reactor means wherein the raw tar sands are fed into an area below the top of the bed. The bitumen is converted in the process in a reducing atmosphere including steam to produce hot coked sand and hot off-gases.... | 06/13/1978 |
| 4092235 | Treatment of coal by alkylation or acylation to increase liquid products from coal liquefaction The production of liquid hydrocarbons from coal is significantly enhanced by alkylating or acylating the coal prior to subjecting the coal to liquefaction conditions. The introduction of aliphatic hydrocarbon radicals or acyl radicals, including carbon mo... | 05/30/1978 |
| 4092236 | Molten salt hydroconversion process Hydrocarbonaceous materials such as petroleum residuums, coal, lignite or the like are introduced into a molten salt bath maintained in a reaction zone at elevated temperature and pressure. Hydrogen also is introduced into the reaction zone in an amount s... | 05/30/1978 |
| 4090957 | System for separating soluble and insoluble coal products from a feed mixture An improved coal processing system wherein relatively small droplets of a feed mixture (including both soluble and insoluble coal products) are dispersed in a first separation zone and contacted, countercurrently with a dissolving solvent to form a heavy ... | 05/23/1978 |
| 4089772 | Alkylation or acylation of liquefaction product bottoms The production of liquid hydrocarbons from coal via liquefaction is enhanced by recovering a bottoms fraction from the coal liquefaction reaction and subjecting the bottoms fraction to alkylation or acylation prior to recycling this bottoms fraction to th... | 05/16/1978 |
| 4088562 | Method and apparatus for processing oil shale A low cost, high efficiency process for treating oil shale is provided which allows essentially complete recovery of the valuable hydrocarbon fraction of the shale, including light ends, without direct firing of the shale or use of other expensive process... | 05/09/1978 |
| 4088567 | Solids removal and fluid catalytic cracking of a synthetic hydrocarbon stream derived from hydrocarbon-containing solids Disclosed is a process for the removal of solids and the fluid catalytic cracking of a synthetic hydrocarbon stream having a 90% boiling point above 800° F. and containing finely divided solids. The stream is cracked under low-severity cracking condition... | 05/09/1978 |
| 4087347 | Shale retorting process Disclosed is a process for the retorting of shale and other similar hydrocarbon-containing solids in which the solids to be retorted are mixed with a solid heat transfer material to rapidly heat the hydrocarbon-containing solids to a high temperature. The... | 05/02/1978 |
| 4085031 | Coal liquefaction with subsequent bottoms pyrolysis In a coal liquefaction process wherein heavy bottoms produced in a liquefaction zone are upgraded by coking or a similar pyrolysis step, pyrolysis liquids boiling in excess of about 1000° F. are further reacted with molecular hydrogen in a reaction zone ... | 04/18/1978 |
| 4085029 | Method for separating liquid and solid products of liquefaction of coal or like carbonaceous materials A method of improving the quality of slurry products taken from coal liquefaction reactors comprising subjecting the slurry to treatment with an alkaline compound such as caustic soda in the presence of steam in order to decompose the phenolic and acidic ... | 04/18/1978 |
| 4082644 | Process for the liquefaction of coal and separation of solids from the product stream Production of a low mineral content fuel by a coal liquefaction process utilizing a hydrogenated coal solvent having been hydrogenated to remove at least about 80% of the asphaltenes which yields as the primary product a mixture of liquid and solids, a pa... | 04/04/1978 |
| 4082643 | Process for the liquefaction of coal and separation of solids from the product stream Production of a low mineral content fuel by a coal liquefaction process utilizing a hydrogenated coal solvent having been hydrogenated to remove at least about 80% of the asphaltenes which yields as the primary product a mixture of liquid and solids, a pa... | 04/04/1978 |
| 4082645 | Recovery of hydrocarbon values by controlled eduction and oxidation of oil shale In the process for recovering energy values from oil shale by the cross-flow retort technique, an improvement is disclosed wherein controlled oxidation of non-vaporizable carbonaceous residue not only provides additional heat for the continuation of the o... | 04/04/1978 |
| 4082646 | Coking of bituminous solids with hot solids recycle Coked solids, produced by coking of tar sands, are contacted in a first zone with air and the minimum amount of supplemental fuel needed to burn all the coke. Part of the hot clean mineral solids produced is then discarded; the balance is moved into a sec... | 04/04/1978 |
| 4081358 | Process for the liquefaction of coal and separation of solids from the liquid product Production of a low mineral content fuel by a coal liquefaction process utilizing a hydrogenated coal solvent having been hydrogenated to remove at least about 80% of the asphaltenes which yields as the primary product a mixture of liquid and solids, a pa... | 03/28/1978 |
| 4081360 | Method for suppressing asphaltene formation during coal liquefaction and separation of solids from the liquid product A method for suppressing asphaltene formation during coal liquefaction utilizing a hydrogenated coal solvent having been hydrogenated to remove at least about 80% of the asphaltenes which yields as the primary product a mixture of liquid and solids, a par... | 03/28/1978 |
| 4081361 | Process for the conversion of carbonaceous materials A process for converting solid carbonaceous material to a liquid product which involves heating a slurry composed of the solid carbonaceous material and a solvent, together with hydrogen, at elevated temperatures and elevated pressures in the presence of ... | 03/28/1978 |
| 4081359 | Process for the liquefaction of coal and separation of solids from the liquid product Production of a low mineral content fuel by a coal liquefaction process utilizing a hydrogenated coal solvent having been hydrogenated to remove at least about 80% of the asphaltenes which yields as the primary product a mixture of liquid and solids, a pa... | 03/28/1978 |
| 4080282 | Catalytic reactor and process for hydrogenating solid-containing carbonaceous materials in said reactor A novel catalytic reactor comprising an elongated reaction chamber and catalytic elements composed of alumina and a hydrogenation catalyst vertically disposed within the reaction chamber and a coal hydrogenation process using such reactor.... | 03/21/1978 |
| 4079005 | Method for separating undissolved solids from a coal liquefaction product Production of a low mineral content fuel by a coal liquefaction process utilizing an asphaltene-free hydrogenated coal solvent which yields as the primary product a mixture of liquid and solids, a part of which is suspended in the liquid. The suspended so... | 03/14/1978 |
| 4079004 | Method for separating undissolved solids from a coal liquefaction product Production of a low mineral content fuel from a coal liquefaction product utilizing a hydrogenated coal oil solvent and a light aromatic solvent in combination to remove suspended mineral solids.... | 03/14/1978 |
| 4077868 | Method for obtaining hydrocarbon products from coal and other carbonaceous materials An elongated tube (preferably stainless steel) is maintained at a temperature of at least about 1000° F. throughout its length. Coal or other carbonaceous feed material is moved through the tube at a uniform rate of speed in the substantial absence of ai... | 03/07/1978 |
| 4077866 | Process for producing low-sulfur liquid and solid fuels from coal An improved process for the conversion of coal to low-sulfur products is disclosed wherein coal is heated with a liquid phase coal dissolution solvent, which is preferably a heavy aromatic petroleum solvent, in the presence of a solid, sulfur scavenger su... | 03/07/1978 |
| 4077867 | Hydroconversion of coal in a hydrogen donor solvent with an oil-soluble catalyst A process for catalytically hydroconverting coal to produce coal liquids is effected by forming a mixture of an oil soluble metal compound, a hydrogen donor solvent and coal, converting the compound to a catalyst within said mixture and reacting the mixtu... | 03/07/1978 |
| 4076612 | Process for obtaining liquid fuel-oil and/or gaseous hydrocarbons from solid carbonaceous feed stocks A process for forming a fuel-oil from coal. The coal is treated in a low temperature carbonisation retort to give coke, coal-gas and tar-oil. The coke is converted to water-gas which is then synthesised in a Fischer-Tropsch synthesiser to form fuel-oil. T... | 02/28/1978 |
