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7314002 |
Densification system
A densification system for shredding and densifying specification raw materials for use as an alternative fuel source. The densified specification raw materials formed by the inventive system are...
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7264763 |
Method and apparatus for the manufacture of compacts
A method for the manufacture of compacts from comminuted material ( 12 ) such as lignocellulose material and/or other combustible material for burning in hearths, wherein the material ( 12 ) is...
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7252691 |
Conversion of municipal solid waste to high fuel value
A combustible pellet comprising municipal solid waste. The pellet has a water content of less than 10% by weight and a fuel value of at least 10,000 BTU. A process for the forming of a combustible...
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6716259 |
Artificial firelogs and firestarter chips and method and apparatus for manufacture thereof
An artificial firelog and firestarter chip producing apparatus comprising a cutting assembly, a compression conveyor auger assembly and a die. The apparatus converts standard waxed corrugated...
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6709472 |
Insolubly bound particulate products
The novel features of this invention include a bio-based binding-agent and a manufacturing process which—together with conventional production equipment—comprise a very low-cost system for...
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6613109 |
Process for manufacturing artificial firelogs
An artificial firelog having a support surface, a viewing surface, and a pair of end surfaces is produced by moving a component mixture through an extrusion bore containing an extrusion die. The...
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6524354 |
Process for the production of low ash fuel
The present invention describes a process for the production of low ash fuel using calcined petroleum coke by crushing and screening of calcined petroleum coke below 3 mm size, mixing the crushed...
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6375447 |
Apparatus for dewatering and pelletizing particulate fuel
An apparatus for pelletizing a feed material containing finely divided solids and water by compressing the feed material in the die cavities of a pellet mill and permitting excess water to escape...
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6375690 |
Process for forming coal compacts and product thereof
A process for forming durable, mechanically strong compacts from coal particulates without use of a binder is disclosed. The process involves applying a compressive stress to a particulate feed...
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6273922 |
Durable briquettes for use in gas-fired barbecue grills
A briquette, and method of making it, for use in gas-fired barbecue grills. The briquette features three desirable characteristics: (1) relative permanency or durability, i.e. it is useable a...
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6251147 |
Artifical firelog and firestarter chip producing apparatus and method and products produced therefrom
An artificial firelog and firestarter chip producing apparatus comprising a cutting assembly, a compression conveyor auger assembly and a die. The apparatus converts standard waxed corrugated...
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6217625 |
Pelletized pulp
A pelletized cellulosic pulp product is produced from a delignified and bleached paper pulp raw material that is useful as a combustion material. The size, shape, density and glazed outer surface...
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6214064 |
Process for making a fuel product from coal fines and sewage sludge
A process for making a fuel product including blending a sewage sludge with an acid, mixing an oxide-containing chemical with the blended sludge so as to cause a reaction which elevates a...
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6165238 |
Fuel pellet and method for its production
An improved pelletized fuel consisting essentially of from about 70% to about 98% coal fines and from about 2% to about 30% waste thermoplastic polymeric material (plastic) and a method of...
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6156083 |
Coal reclamation systems
A method for recovering coal from a mixture containing fine particles of coal, the mixture including fine coal particles, water, and impurities, the method including feeding the mixture to a first...
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6152973 |
Compressed wood fuel pellet and method and machine for making same
A method and machine for making a new and improved compressed wood fuel pellet. The method comprising the steps of severing a wafer of tree trunk or branch, punching or splitting a small portion...
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6136054 |
Synthetic fireplace log comprising waxed cardboard and method of producing
A low cost and an environmentally-friendly synthetic firelog is made by mixing specially processed waxed-cardboard or other wax coated papers of varying proportions with a binder/fuel. The...
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6099770 |
Method of and apparatus for dewatering and pelletizing particulate fuel
A method of and apparatus for pelletizing a feed material containing finely divided solids and water by compressing the feed material in the die cavities of a pellet mill and permitting excess...
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5879421 |
Apparatus and method for forming an aggregate product from particulate material
This invention is directed to a method and apparatus for forming an aggregate product from particulate material, and in particular for making an aggregate coal product from coal particles. The...
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5743924 |
Pelletized fuel composition and method of manufacture
Disclosed is a pelletized fuel composition comprising coal fines in an amount of from 60% to 80% by weight, paper making sludge in an amount of from 10% to 30% by weight, and a shredded polymeric...
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5658357 |
Process for forming coal compact without a binder
A process for forming durable, mechanically strong compacts from feed mixtures comprising solid particles in contact with a liquid (e.g., carboniferous particles in contact with water) which does...
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5645614 |
Process for the utilization of sewage sludges
In the process, the wet sewage sludge originating from a preceding mechanical dewatering is mixed with brown coal, brown coal coke or their mixtures in a weight ratio of sewage sludge to brown coal...
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5599360 |
Method for the manufacture of char-containing articles
A process for manufacturing charcoal and intermediate char-containing articles from paper and/or paperboard comprises forming an aqueous pulp of cellulose fibers from the paper or paperboard and...
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5562743 |
Binder enhanced refuse derived fuel
A refuse derived fuel (RDF) pellet having about 11% or more particulate calcium hydroxide which is utilized in a combustionable mixture. The pellets are used in a particulate fuel bring a mixture...
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5431702 |
Waste conversion process and products
A process is disclosed for time production of fuel pellets or briquettes from sewage sludge solids and municipal solid waste with minimal drying requirements. In one of its more specific aspects,...
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5429645 |
Solid fuel and process for combustion of the solid fuel
A solid fuel containing a recycled residue from anaerobic fermentation or anaerobic digestion of an organic material. The solid fuel can also contain a volatile solid fossil fuel. The residue is...
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5393310 |
Artificial fireplace log and method for making the same
A method for making artificial fireplace logs includes the initial step of mixing a quantity of grass clippings and leaves with a quantity of wood chips and sawdust to form a mixture. A liquid...
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5376156 |
Method for binding particulate wastes such as dusts, fibers, paper and metal wastes or the like, into solids
The particulate waste is mixed with plastic waste in a screw extruder, pressed and extruded. The particulate waste and plastic waste are introduced into the feed hopper of a screw extruder. The...
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5352252 |
Process for making fuel cubes from straw
A process for making fuel cubes from straw includes the steps of drying and cutting the straw, adding lime to the straw and applying ammonia to the straw. The straw is then placed in a...
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5264007 |
Method of making fuel briquettes and the briquettes so made
Fuel briquettes are made by blending a caking coal with pitch at a temperature above 100° C. but below 200° C. to form a pitch/coal alloy binder which is then hot-blended with any caking coke,...
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5238629 |
Process of coal agglomeration
A process for the agglomeration of coal fines comprises the steps of mixing the coal fines with an agglomerating liquid which is further comprised of a reagent and a solvent portion. The coal fines...
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5049163 |
Process for reducing sulphur dioxide emission from burning coal containing sulphur
This invention discloses a process for reducing sulphur dioxide emission from burning coal containing sulphur. In the disclosed process, pulverized combustible materials, such as coal, wood flour,...
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5049333 |
Briquet forming apparatus and method
Apparatus and method for preparing briquets of charcoal or the like with various shapes, preferably half pillow or "D" shape, in which briquets are molded between roll type press for compressing...
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5009672 |
Process for recycling and reutilizing waste, in particular solid urban waste
Process for recycling and recovering solid urban waste and the like, consisting in subjecting solid urban waste (SUW), after the removal of any ferromagnetic material present therein, to...
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4834777 |
Fuel pelletizing apparatus and method
Fuel pellets are produced by reciprocating punches and complementary stationary dies across which waste solid or particulate organic materials are continuously passed. The reciprocating punches...
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4802890 |
Agglomeration of coal fines
Coal fines are agglomerated by mixing together the coal fines, a phenol-formaldehyde resole resin in alkaline aqueous solution and a curing agent for the resin comprising one or more esters...
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4681597 |
Method for agglomerating powdered coal by compaction
In its method aspect, this invention proposes adding water and small quantities of surfactant, such as dioctyl sodium sulfusuccinate, to powdered carboniferous material in a process for pelletizing...
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4645513 |
Process for modification of coal
A process for upgrading the characteristics of moisture containing coal which comprises drying coal until the water content reaches substantially zero, rapidly heating the dried coal to a molding...
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4606876 |
Method of continuously producing compression molded coal
The present invention relates to a method of producing compression molded coal to be used for the block charging for the coke oven operation wherein the raw material coal are initially compression...
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4601728 |
Method and apparatus for preparing a material for hot briquetting
The invention relates to a method of preparing material for hot briquetting by pyrolytic decomposition of bituminous coal in mixture with thermally widely stable substances at a temperature of...
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4561860 |
Process and apparatus for production of refuse derived fuel
Refuse derived fuel is produced by taking raw refuse, pulverizing it and n screening it to remove fines and oversize material, the screened residue being passed to an air classifier where the light...
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4533002 |
Device for gripping and raising tamping tools or for holding raised tamping tools in a tamping machine which is especially used for the packing of coking coal
In a device for gripping and lifting tamping tools or for holding raised tamping tools in a tamping machine, the individual tamping tools rods are clamped in abutments (2) by slideable clamping...
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4529407 |
Fuel pellets
A fuel pellet comprises from about 97 to about 99 percent by weight naturally occurring combustible material of which at least 50 percent is natural cellulosic material and from about 1 to about 3...
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4519808 |
Straw fuel briquette press
A straw briquette press in form of a towable machine can in the field pick up straw or receive it from another traversing machine and press said straw to briquettes having a stable shape and...
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4515601 |
Carbonaceous briquette
Green briquette agglomerates (10) are manufactured by simultaneously crushing and blending high sulfur petroleum coke (20), a high R/B softening point, high sulfur and metals content asphaltene...
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4508539 |
Process for improving low quality coal
A process for improving low quality coal is disclosed, comprising subjecting a crushed low quality coal to a press treatment and a heat treatment. The process of the invention permits the...
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4445906 |
Process for the treatment of the combustible portion of domestic waste for briquetting and apparatus therefor
A method and apparatus for the treatment of the combustible portion of crushed domestic waste. The waste is pre-dried and separated from dense-medium material such as metal and glass prior to...
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4436526 |
Method for making an artificial fuel log
An improved method is disclosed for making an artificial fuel log from a mixture of combustible material and binder. According to this method, the mixture is placed in a hollow mold which is open...
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4381986 |
Cooling and solidification of heavy hydrocarbon liquid streams
A process and apparatus for cooling and solidifying a stream of heavy hydrocarbon material normally boiling above about 850° F., such as vacuum bottoms material from a coal liquefaction process....
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4314825 |
Process of preparing combustible solid fuel
A process for preparing combustible solid fuel from grain residue which includes the steps of passing the grain residue through a pelletizing zone wherein the residue is subjected to compaction...
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