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| Number | Title | Issue Date |
| 7799100 | Method for producing improved coal for use in metallurgy, and method for producing reduced metal and slag containing oxidized nonferrous metal The present invention provides a method for upgrading low-rank coal unsuitable for production of a reduced metal by a conventional carbon composite method to produce an upgraded coal suitable for the carbon composite method. The prevent invention also provides a met... | 09/21/2010 |
| 7431744 | Apparatus and method for manufacturing solid fuel with low-rank coal A method for manufacturing a solid fuel includes the steps of partially or completely separating finely powdered coal from pulverized low-rank coal; mixing the separated low-rank coal with a mixed oil containing a heavy oil and a solvent oil to produce an untreated ... | 10/07/2008 |
| 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 |
| 7338542 | Designed cellular coal Coal-based cellular products that can be custom designed to have integral stiffeners or load paths, directed heat transfer paths, and/or directed mass transfer paths and methods for their production are described. Such design and production is made possible by the a... | 03/04/2008 |
| 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 |
| 7128767 | Method to upgrade low rank coal stocks The ash content of raw coals, lignite, and other carbonaceous materials is reduced by leaching the high-ash material with an aqueous acidic waste product produced by a Fischer-Tropsch reaction. The acidic aqueous waste is mixed with coal and process conditions are d... | 10/31/2006 |
| 7087340 | Proton conducting electrode, method for preparation thereof and electro-chemical device A proton conducting electrode is provided. The proton conducting electrode includes a mixture of a fullerene derivative and an electron conducting catalyst, wherein the fullerene derivative is composed of carbon atoms that can form fullerene molecules and one or mor... | 08/08/2006 |
| 7087171 | Method for selective recovery and dewatering sewage sludge by using sludge-coal-oil co-agglomeration Disclosed herein is a method for dewatering sewage sludge by using sludge-coal-oil co-agglomeration (“SOCA”) which comprises the steps of physically, chemically or biologically conditioning sludge to impart hydrophobicity and lipophilicity to the sludge (conditi... | 08/08/2006 |
| 7025840 | Explosive/energetic fullerenes An explosive and method of making comprising one or more fullerene compounds. The fullerenes may be buckyballs, carbon nanotubes, or buckypaper. ... | 04/11/2006 |
| 6384091 | Emulsion with coke additive in hydrocarbon phase and process for preparing same A process for preparing a hydrocarbon in water emulsion includes the steps of providing a hydrocarbon phase containing inactive natural surfactant; mixing a solid carbon additive with the hydrocarbon phase, the solid additive being selected from the group... | 05/07/2002 |
| 6069178 | Emulsion with coke additive in hydrocarbon phase and process for preparing same A process for preparing a hydrocarbon in water emulsion includes the steps of providing a hydrocarbon phase containing inactive natural surfactant; mixing a solid carbon additive with the hydrocarbon phase, the solid additive being selected from the group... | 05/30/2000 |
| 5902359 | On-line and/or batch process for production of fuel mixtures consisting of coal/asphaltenes, fuel oil/heavy crude oil, surfactant and water (CCTA), and the obtained products An on-line and/or batch process to obtain a liquid mixture consisting of coal/asphaltenes-fuel oil/heavy crude oil-surfactant-water, through dispersion of a coal-water mixture, using a mechanical element defined as a static mixer or a tank with shaking.... | 05/11/1999 |
| 5611824 | Fullerene jet fuels This invention involves a process for achieving more energetic fuels by ug high density fullerenes and fullerene derivatives, mixed with liquid hydrocarbon or hydrocarbon derivative fuels. The advantages of the these materials are that they constitute a ... | 03/18/1997 |
| 5556436 | Solid fuel made from porous coal and production process and production apparatus therefore A solid fuel in which an oil mixture containing a heavy oil fraction and a solvent fraction is incorporated in fine pores of a porous coal. The improved porous coal is produced by mixing an oil mixture containing a heavy oil fraction and a solvent fractio... | 09/17/1996 |
| 5554201 | Thermal treated coal, and process and apparatus for preparing the same Thermal treated coal which has a water content of not more than 10%, which has pores with an oil adsorbed onto and impregnated into the pore surface, and which is decarboxylated and dehydrated to have a reduced porosity is provided. In its manufacture, po... | 09/10/1996 |
| 5503643 | Substituted fullerenes as flow improvers The fuel oil-substituted fullerene compositions of the invention are useful for improving the cold flow properties of fuels. Typically the substituted fullerenes have the general formula CFn (GRy)x, where CFn is a fullerene, n is the... | 04/02/1996 |
| 5258048 | Fuel compositions comprising fullerenes Fuel compositions for internal combustion engines comprising a gasoline, a hydrocarbon-soluble allotropic form of carbon, and optionally a dispersing agent are provided. Two-cycle engines operated utilizing the fuel compositions provided herein emit lesse... | 11/02/1993 |
| 5240592 | Method for refining coal utilizing short residence time hydrocracking with selective condensation to produce a slate of value-added co-products This invention generally relates to refining coal by fluidized hydrocracking employing short residence time volatilization and decomposition of the coal feedstock, with subsequent selective condensation and hydrostabilization without utilization of extern... | 08/31/1993 |
| 5234475 | Hydrocarbon fuels having one or more fullerenes therein as indentification media A hydrocarbon fuel is provided with one or more fullerene additives such as, for example, C60, C70, C74, C76, C78, C82, and C84 fullerenes, to serve as an identifying means for the fuel. The particular fullerene additive or additives may varying from the ... | 08/10/1993 |
| 5234474 | Fuel compositions comprising fullerenes Fuel compositions for internal combustion engines and more particularly, fuel compositions for 2-cycle internal combustion engines comprising a gasoline, a hydrocarbon-soluble allotropic form of carbon, and a dispersing agent are provided. Engines operate... | 08/10/1993 |
| 5198103 | Method for increasing liquid yields from short residence time hydropyrolysis processes This invention generally relates a method for increasing the quantity and quality of hydrocarbon liquids derived from the short residence time decomposition and volatilization of coal. The invention more particularly relates to an improved method of econo... | 03/30/1993 |
| 5132007 | Co-generation system for co-producing clean, coal-based fuels and electricity A method for preparing coal-derived fuel compositions while simultaneously producing electricity by utilizing a novel co-generation configuration employing the hydrodisproportionation of coal. Hydrodisproportionation is the short residence time decomposit... | 07/21/1992 |
| 5110452 | Method of refining coal by catalyzed short residence time hydrodisproportionation to form a novel coal-derived fuel system This invention generally relates to a catalyzed short residence time decomposition and volatilization of coal to produce liquid co-products while minimizing production of char and gas without utilization of external hydrogen, that is, hydrogen other than ... | 05/05/1992 |
| 5076812 | Coal treatment process and apparatus therefor A process for demineralizing and agglomerating coal in which the coal is subjected to pulverization in order to separate mineral matters therefrom and resulting coal particles are agglomerated through the use of a bridging liquid and a binder. Oversided c... | 12/31/1991 |
| 5021148 | Method of refining coal by short residence time partial liquefaction to produce petroleum substitutes and chemical feedstocks This invention generally relates to short residence time decomposition and volatilization of coal to produce liquid co-products, including petroleum substitutes and chemical feedstocks, while minimizing production of char and gas without utilization of ex... | 06/04/1991 |
| 4978367 | Radiation enhancement in oil/coal boilers converted to natural gas A fuel composition for co-combustion with natural gas in a furnace having a radiant energy zone and a convective energy zone comprising a slurry of micronized coal in No. 2 fuel oil, the ratio of coal to fuel oil being such that the co-combustion with nat... | 12/18/1990 |
| 4938782 | Method of refining coal by short residence time hydrodisproportionation to form a novel coal derived fuel system This invention generally relates to short residence time decomposition and volatilization of coal to produce liquid co-products while minimizing production of char and gas without utilization of external hydrogen, that is, hydrogen other than that contain... | 07/03/1990 |
| 4887383 | Process for producing a slurry of a pulverized carbonaceous material A process for producing a slurry of a pulverized carbonaceous material having a predetermined particle size distribution with a certain average particle size and a certain maximum particle size is described. The process, which includes a comminuting phase... | 12/19/1989 |
| 4859209 | Stable brown-coal/oil suspensions and a process for preparing same The invention relates to stable brown-coal/oil suspensions and a process for preparing same. The suspension contains 20 to 60% by mass of coal powder and 40 to 80% by mass of fuel oil of 25 to 70% by mass of an agglomerate and 30 to 75% by mass of fuel oi... | 08/22/1989 |
| 4780109 | Coal water suspensions involving carbon black Disclosed is a composition and method from making coal water slurries containing carbon black. A composition disclosed comprises: 65 to 85% by weight coal particulates; 0.2 to 2% by weight, based on the total weight of dry coal, of carbon black, and optio... | 10/25/1988 |
| 4780110 | Low sulfur and ash fuel composition An improved low sulfur and ash pumpable fuel composition is provided comprised of a mixture of carbon black in fuel oil dispersed in an aqueous continuous phase, said mixture comprising from about 50 to about 80 weight percent of said fuel composition and... | 10/25/1988 |
| 4775457 | Method for treating crude oil sludges and the like Crude oil sludges and other relatively heavy hydrocarbon liquid sludges are mixed with diatomaceous earth or perlite to form a friable and flowable solids mixture which is conveyed to a combustion unit, such as rotary kiln, calciner or lift pipe type comb... | 10/04/1988 |
| 4762528 | Fluid fuel from coal and method of making same Coal is gasified to produce carbon monoxide which is converted to carbon by a reverse Boudouard reaction The carbon dioxide is recycled and reacted with coal to create more carbon monoxide by the Boudouard reaction The resulting carbon is recovered and mixed w... | 08/09/1988 |
| 4726810 | Process for the selective agglomeration of sub-bituminous coal fines The process involves adding a low quality oil to an aqueous slurry of sub-bituminous coal particles to act as a selective agglomerating agent. When the mixture is agitated, as by pumping it through a pipeline loop, the coal particles agglomerate and may l... | 02/23/1988 |
| 4705533 | Utilization of low rank coal and peat Low rank coals including lignite, brown and sub-bituminous coals, and peat containing unacceptably high quantities of water are dried and enriched in BTU content. The mine low rank coal is crushed to between about one-half inch and three inches in diamete... | 11/10/1987 |
| 4704134 | Coal derived/aqueous fuel system and method of manufacture Coal char produced by the pyrolytic destructive thermal distillation of coal in the absence of oxygen is ground, sized and then admixed in suitable portions with water to form a fluidic, liquid-solid fuel system comprising a nonpolluting, stable, transpor... | 11/03/1987 |
| 4696638 | Oil fuel combustion Improved combustion efficiency is achieved by separately preparing a water-in-oil emulsion, containing up to about 90 volume % water, and blending the emulsion into an oil fuel prior to combustion. The blended oil fuel contains from 1 to about 10 vol. % w... | 09/29/1987 |
| 4685936 | Method of varying rheology characteristics of novel coal derived fuel system The rheology of a fluidic, combustible liquid/solid slurried fuel system derived in substantial part from the pyrolytic destructive thermal distillation of coal in the absence of oxygen and which is comprised of a pipeline transportable, nonpolluting fuel... | 08/11/1987 |
| 4671801 | Method for the beneficiation, liquefaction and recovery of coal and other solid carbonaceous materials An integrated, continuous (or batch) process for the beneficiation and/or liquefaction of coal, especially low rank coals, is provided, the process generally involving admixing coal with an organic liquid medium under high shear agitation, further benefic... | 06/09/1987 |
| 4671800 | Low rank and waste coal derived fuel compositions and method of manufacture of such compositions Coal char, preferably produced by the pyrolytic destructive thermal distillation in the absence of oxygen of carbonaceous materials selected from lignites, peats, low rank coals, and waste coals, is beneficiated, ground and sized and then is admixed in su... | 06/09/1987 |
