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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...
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...
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...
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...
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...
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...
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...
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 C Fn ...
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...
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...
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...
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...
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....
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...
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...
H000981 Process for selective grinding of coal  
A process for preparing coal for use as a fuel. Forming a coal-water slurry having solid coal particles with a particle size not exceeding about 80 microns, transferring the coal-water slurry to a...
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...
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...
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%...
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...
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...
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...
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 2CO➝CO 2 +C The carbon dioxide is recycled and reacted with coal to create more carbon...
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...
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,...
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....
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...
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,...
4650496 Process for making a carbonaceous slurry  
A process for preparing a carbonaceous slurry is provided. The process involves the steps of (1) providing a slurry with specified properties, and (2) thereafter mixing said slurry. The slurry...
4623359 Aqueous slurries of solid carbonaceous fuel  
Aqueous slurries of solid carbonaceous fuel that include a novel highly converted sulfonated surfactant derived from a suspension of low rank coal and coal derived creosote oil for reducing the...
4560391 Alternative fuel comprised of sewage sludge and a liquid hydrocarbon fuel oil  
An improved fuel composition is provided comprising in minor proportion a non-dewatered sewage sludge and in major proportion an organic fuel comprised of a hydrocarbon fuel oil. A method is also...
4547201 SRC Residual fuel oils  
Coal solids (SRC) and distillate oils are combined to afford single-phase blends of residual oils which have utility as fuel oils substitutes. The components are combined on the basis of their...
4537599 Process for removing sulfur and ash from coal  
A process is disclosed for removing sulfur and ash, particularly clay and pyrite from coal particles having a mesh size of 30 or less. A slurry of coal particles is agitated in an ultrasonic mixer...
4526584 Process for pumping a carbonaceous slurry  
A process for pumping a carbonaceous slurry which contains at least about 60 volume percent of solids is disclosed. The slurry used in this process has a carbonaceous consist with a particle size...
4526585 Beneficiated coal, coal mixtures and processes for the production thereof  
A process for the production of beneficiated coal and coal slurries having low ash, and sulfur involving admixing coal in an aqueous medium with a surface treating admixture comprising a...
4501205 Process for burning a carbonaceous slurry  
A process for burning a carbonaceous slurry is provided. In this process, a high-solids content carbonaceous slurry with a specified particle size distribution and specified other properties is...
4494960 Process for the production of pumpable coal slurries  
In a process for the production of pumpable coal slurries for use in high-pressure hydrogenation, such an amount of finely divided coal is mixed into an oil which boils at a temperature of higher...
4479805 Treating-high asphaltene fuel oils  
A process for the treatment of asphaltene-bearing fuel oils to reduce the amount of acid-smut in stack gas often emitted during the combustion of such fuels. The fuel is passed through a liquid...
4479806 Stabilized slurry and process for preparing same  
A process for preparing a carbonaceous slurry with a Brookfield viscosity of less than 5,000 centipoise when it is measured at a solids content of 70 volume percent, ambient temperature, ambient...
4477259 Grinding mixture and process for preparing a slurry therefrom  
A novel grinding mixture useful for preparing a solid-liquid slurry is disclosed. This grinding mixture contains from about 60 to about 82 volume percent of carbonaceous material (such as coal...
4477260 Process for preparing a carbonaceous slurry  
A process for preparing a carbonaceous slurry which utilizes a reduced amount of dispersing agent is provided. In this process, a grinding mixture which is comprised of from about 60 to about 82...
4475924 Coal derived fuel composition and method of manufacture  
Coal char produced by the pyrolytic destructive thermal distillation of coal in the absence of oxygen is beneficiated, ground and sized and then is admixed in suitable portions with a liquid...
4466362 Method of removing sulfur and other contaminants from the coal in coal-oil slurries  
An improved method of removing pyritic sulfur and other contaminants from the coil in a coal-oil slurry. In such a slurry, raw pulverized coal is suspended in fuel oil. In practicing the process,...
4455148 Method for de-ashing and transportation of coal  
A method for de-ashing crushed coal and transporting it in the form of pellets, said method comprising the following steps: A. the step of mixing pulverized coal with a binder to cover the...
4448585 Process for forming stable coal-oil mixtures  
A process for forming a coal-oil mixture fuel slurry of enhanced stability comprising the steps of: (1) contacting an aqueous slurry of coal particles containing ash and iron pyrite mineral matter...
4440543 Method for stabilizing a slurry of finely divided particulate solids in a liquid  
A method for stabilizing a slurry of finely divided particulate solids in a liquid, the method consisting essentially of dispersing from about 1 to about 10 weight percent, based on the particulate...
4440544 Process for the conversion of ground hydrous lignite into a pumpable dehydrated suspension of fine-ground lignite and oil  
A method for producing a pumpable suspension in oil of dehydrated, finely-ground lignite is disclosed. The method involves mixing hydrous, ground lignite with an oil and gasoline, grinding the...
4437863 Peat fuel slurry  
A process and product for a peat fuel composition which comprises dispersing peat loaded at about 30-50% by weight of the composition and normally containing 20-50% H 2 O in a fuel oil mix which...
4437982 Separation of clay from coal  
A method of separating fine coal particles from refuse particles comprising the step of: (a) providing a coal filter cake (b) forming a slurry of fine coal particles, refuse particles in a...
4417901 Mixed fuel of coal and oil  
A mixed fuel of coal and oil in the form of a dispersion of coal particles in oil. The coal particles comprise coal particles (A) having a median diameter of 10 microns or less together with coal...
Matches 1 - 50 out of 112 1 2 3 >