Class 44/598 - Baking or drying of formed product

Subclass of Class 44 - Fuel and related compositions
Definition: Subject matter in which the condition or technique is one
No. of patents: 39
Last issue date: 04/19/2011

Number	Title	Issue Date
7927388	Apparatus and method for producing woodfuel briquettes, pellets, compounds, agglomerates, granulates, and the like An apparatus and a method for producing woodfuel briquettes, pellets, compounds, composites, agglomerates, or granulates as source material for subsequent processing in injection molding or extrusion processes, includes a pressing screw with screw spirals, which rot...	04/19/2011
6902589	Method for producing shaped, activated charcoal The invention relates to a method for producing shaped, activated charcoal. According to the method, after being ground, carbon-bearing material, or a mixture of several carbon-bearing materials are rendered homogenous with a binding agent which contains water, or a...	06/07/2005
6780210	Process for forming a fuel product from paper mill sludge A process for making a fuel product from paper mill sludge including dewatering the paper mill sludge so as to have a solids content of greater than 7 percent by weight, mixing an oxide-containing chemical and molasses with the dewatered paper mill sludge, pressuriz...	08/24/2004
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 and screened materials to achieve a bulk density in the ran...	02/25/2003
6436157	Gasification of biosludge The high intracellular water content contained within the cell walls of the bacterial cells of a dewatered biosludge is reduced by removing the intracellular water in a denaturing operation. This operation comprises heating the biosludge at a temperature ...	08/20/2002
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 of the pelletized product contributes to controlled combust...	04/17/2001
6063147	Gasification of biosludge The high intracellular water content contained within the cell walls of the bacterial cells of a dewatered biosludge is reduced by removing the intracellular water in a denaturing operation. This operation comprises heating the biosludge at a temperature ...	05/16/2000
5912192	Multi-layered solid combustible article and its manufacture A burnable article such as a fire log or a barbecue briquette is formed of a top fire-igniting layer, a middle fire-catching layer, and a body layer. The fire-igniting layer has a composition, in weight percent, of from about 47 to about 67 percent carbon...	06/15/1999
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 blending the aqueous pulp with comminuted char in a dry or s...	02/04/1997
5584895	Process for preparing solidified material containing coal ash A process for preparing a solid material containing coal ash includes a first step of mixing coal ash with a calcium compound to obtain a mixture, a second step of molding the mixture to obtain a molded article, and a third step of subjecting the molded a...	12/17/1996
5468266	Method for making a carbonaceous heat source containing metal oxide A carbonaceous heat source comprising metal oxides and methods for making such heat source are provided. The heat source has an ignition temperature substantially lower than conventional carbonaceous heat sources, while at the same time produces virtually...	11/21/1995
5421836	Organic charcoal briquet and method of manufacture A method of forming organic charcoal briquets from a mix of quantities of discrete coconut charcoal particles, borax, pulverized limestone, binder starch and water as well as the fuel product produced thereby....	06/06/1995
5250080	Process for manufacturing a solid fuel A process is disclosed for manufacturing solid fuel which includes the steps of mixing a biomass, a heavy hydrocarbon and a sorbent to form a hydrocarbon-biomass slurry, the biomass being characterized by a particle size and distribution of about 50% betw...	10/05/1993
5071446	Nuggets for heating and a method of making the same The invention discloses fuel nuggets with high heat value which is virtually dust-free, and a method of making the same. The nuggets are preferably made of scrap particleboard made of wood particles bonded together by a urea/formaldehyde adhesive. The scr...	12/10/1991
5009671	Process for producing a solid, finely divided fuel based on coal Water resistant coal briquettes are obtained by mixing finely divided coal with a first starchy binder in an amount of 0.5 to 3 wt % and with a second binder that contains molasses or fermented molasses (vinasse) and water in an amount of 1 to 4 wt %, and...	04/23/1991
4908167	Method for producing form bodies, such as briquettes Form or pressed bodies, such as briquettes, are made of a mixture including at least two components. A first component is formed by at least one fine grained solid material which does not soften below 800° C. A second component is formed by at least one ...	03/13/1990
4828573	Method of manufacturing a pelletized fuel A method of manufacturing a pelletized fuel including the steps of hydrolizing cellulose containing material to form a binder, mixing the binder with combustible fines including preferably coal fines and wood chips or saw dust in which the binder is about...	05/09/1989
4824438	Process for producing smokeless, cured fuel briquettes Green briquettes made from particulate carbonaceous material and lignosulfonate as a binder are cured in an oven in the presence of circulating gases containing a high percentage of oxygen and superheated steam. The sulfur derived from the binder is oxidi...	04/25/1989
4615712	Fuel agglomerates and method of agglomeration Solid fuel agglomerates are prepared of particulate coal or other carbonaceous material with a binder having a high humic acid or humate salt content. The humic acid is extracted from oxidized carbonaceous material with a mild aqueous alkali solution of, ...	10/07/1986
4602917	Formcoke having modified bituminous binder Formcoke is produced by separately introducing feedstocks of calcined coal particles, bituminous binder and a carbohydrate, preferably an aqueous sugar, into a mixing zone. The resulting mixture is compacted into shapes, such as briquettes, which are then...	07/29/1986
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 production of improved coal from low quality coal, said improved co...	04/02/1985
4461625	Methods of cleaning coal Methods of and apparatus for cleaning coal in which halogenated hydrocarbons are used as parting liquids. Various novel techniques, components, and combinations thereof are employed to maximize efficiency; to minimize costs and adverse environmental impac...	07/24/1984
4389218	Production of solid fuel shapes from coal fines Dry, random size, mine run coal fines are mixed with a concentrated liquor by-product (e.g. ammonium lignin sulfonate liquor, 40-60% solids by weight) of a sulfite paper making process of an amount sufficient to merely wet the coal fines such that they wi...	06/21/1983
4305788	Process for the production of molded metallurgical coke from coal briquettes The process for the production of molded metallurgical coke from dried coal or fine coal mixtures with a low swelling index particularly highly volatile fine coal comprises mixing normal washed fine coal or fine coal mixtures of a grain size of from 0 to ...	12/15/1981
4302209	Lignite pellets and methods of agglomerating or pelletizing The specification discloses lignite pellets which are relatively hard, dust resistant, of generally uniform size and free from spontaneous ignition and general degradation. Also disclosed are methods for making such pellets which involve crushing as mined...	11/24/1981
4294584	Dewatering of coal slurries A slurry of coal particles is dewatered by agglomerating the coal particles using a hydrocarbon binder at an elevated temperature to obtain coal pellets which are then heat treated. Gases released by the pellets during heat treatment may be heat exchanged...	10/13/1981
4274836	Method for improving bed firing characteristics and inhibiting coalescence of coal pellets There is disclosed a method of reducing the swelling characteristics and bed characteristics of a pelletized fuel during a sintering operation. The method comprises the steps of pulverizing the coal to form a powdery mass, forming the mass into discrete p...	06/23/1981
4272324	Process for producing shaft furnace cokes An impregnated carbonaceous material which can be mixed with basic coal to form a mixture which, once roasted, forms an effective shaft furnace coke. The impregnated carbonaceous material is formed by finely crushing an inert carbonaceous material such as...	06/09/1981
4259157	Method of producing abrasion-proof coke forms from bituminous coal, brown coal or peat briquets Abrasion-proof coke forms are produced from bituminous coal, brown coal, or peat in the form of briquets, by preheating the briquets, dehydrating or predrying them, carbonizing them and then cooling them in at least three separate stages in which the briq...	03/31/1981
4248603	Method and tank for producing hot briquettes A method for producing hot briquettes, for example, for use in blast furnaces, and using a briquetting material of non-caking components, such as low temperature coke from bituminous coal and/or lignite, coke dust and/or oil coke and caking fat coal at te...	02/03/1981
4238200	Process for the production of fuel from fine coal for coal pressure gasification in a fixed bed reactor A process for the production of fuel from coal for the pressure gasification of coal in a fixed bed reactor comprising the steps of segregating the coal into oversize and undersize fractions, mixing the undersize fraction with sulfite liquor to form an ag...	12/09/1980
4234386	Continuous coke making Binder is added to any finely divided coal which can be made to coalesce on heating, the particles are formed into any shape desired for its end usage, and pyrolyzed under conditions carefully controlled to limit the rate of temperature rise of the shaped...	11/18/1980
4165220	Process for producing hardened semicoke briquettes Briquettes obtained from semicoke and a binder such as pitch, can be hardened when stacked to relatively great height of 5 to 10 meters, provided the "green" briquettes are heated in a vertical oven at a temperature between 300° C. and 400° C. for 35 to...	08/21/1979
4156596	Coke oven system and agglomerating carryover fines therein A coke oven system is provided having a coke oven preferably with pipeline charging for converting coal into coke. Carryover fines are collected from the coke oven and preferably a preheater therefor, and then agitated by agitator means and the collected ...	05/29/1979
4119409	Process for the preparation of synthetic coking coal Synthetic coking coal is prepared by mixing solvent refined coal with coal and heat-treating the resulting mixture at a temperature ranging from about 300° C to about 480° C, preferably from about 380° C to about 450° C....	10/10/1978
4097245	Method for producing carbonaceous material Particulized coal is subjected to a series of processing operations to produce a formed coke product. Among the operations are a single stage heating process comprising both carbonizing and calcining operations or, alternatively, a heating process in whic...	06/27/1978
4050990	Method and apparatus for producing form coke A method of producing form coke that is coke having pieces of substantially identical form using a heated shaft furnace comprises mixing fine coke with a caking coal and pressing the mixture at temperatures at which the mixture is plastic in order to form...	09/27/1977
4039319	Method of calcining green coke agglomerates An improved process for carbonization of agglomerates to produce formcoke suitable for use in ore reduction furnaces, wherein green formcoke agglomerates are mixed with separator particles of sufficient size and quantity to allow heating gases to pass thr...	08/02/1977
3980447	Process for the manufacture of brown coal briquettes A process of manufacturing briquettes from brown coal includes drying brown coal, which is preferably in fine granular form. The dried brown coal is then heated at a first rate up to a temperature in a range of from about 300° to about 320° C. The brown...	09/14/1976

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Class 44/598 - Baking or drying of formed product