Class 44/599 - With chemical reaction (e.g., carbonizing.etc.)

Subclass of Class 44 - Fuel and related compositions
Definition: Subject matter in which the condition or technique involves
No. of patents: 47
Last issue date: 06/07/2005

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Number	Title	Issue Date
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
6846339	Process for upgrading low rank carbonaceous material A process for upgrading brown coal is disclosed, including providing at least two converging surfaces defining a nip, wherein at least one of the surfaces is rollable in a direction toward the nip; feeding the brown coal to the nip where, by the rolling action of th...	01/25/2005
6641624	Method of preparing a synthetic fuel from coal A method of preparing a synthetic fuel from coal comprising reacting the coal with a polymer composition comprising an aqueous solution or an aqueous emulsion of one or more reactive polymers, the reactive polymers selected from the group consisting of et...	11/04/2003
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 temperature of the sludge, pressurizing the mixed sludge to a press...	04/10/2001
6033528	Process for making blast furnace coke A blast furnace coal is produced by rapidly heating a coal blend having 10 to 30% by weight of a non-slightly-caking coal having softening initiation temperature T with the balance including a caking coal having softening initiation temperature T0	03/07/2000
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
5601692	Process for treating noncaking coal to form passivated char A continuous process for treating a noncaking coal to form stable char. The process includes the sequential steps of drying the coal to remove moisture therefrom and form a dry coal; pyrolyzing the dry coal by progressively heating substantially all of th...	02/11/1997
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
5078927	Process for making raw material bodies especially for the production of silicon or silicon alloys Raw material bodies such as briquettes, for use in the production of silicon or silicon alloys, are formed by mixing a pitch and caking coal at a temperature above 100° C. and up to 200° C. to form a pitch/coal alloy. This hot binder composition is mixe...	01/07/1992
5076297	Method for preparing carbon fuel for smoking articles and product produced thereby The present invention is directed to methods for producing carbon containing fuel elements especially suited for use in cigarette--like smoking articles. One method of the present invention makes use of two separate pyrolysis steps to ensure that the carb...	12/31/1991
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
4849021	Process for producting coal fillers A process for producing coal fillers, which comprises the steps of: (a) carbonization step, which comprises carbonizing crushed coal particles having a particle size of not more than 10 mm and an ash content of not more than 10% by weight by thermal decomposit...	07/18/1989
4846849	Method of flue stream heating Fine-grained substances which do not soften below 800° C., such as oil coke, coking duff, pitch coke and/or fine-grained coal with less than 14% volatile constituents, sand, ores, metal oxides, metals or mixtures of such substances, are introduced in at ...	07/11/1989
4787913	Coal briquetting process A cold coal briquetting process comprises mixing fine coal with polyvinyl alcohol and a hardening agent selected from iron oxide, phosphate rock and bauxite or combination of two or more thereof. The process permits economies in process and capital costs ...	11/29/1988
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 temperature of from 200° to 400° C. within a time of from...	02/24/1987
4605421	Process for the preparation of a carbonaceous-derived solid fuel product A method for producing carbonaceous-derived solid fuel products comprising subjecting a carbonaceous material to a temperature sufficient to remove a substantial portion of water inherent in said carbonaceous material, pyrolyzing at least a portion of the...	08/12/1986
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 450° to 530° C., and to a suitable apparatus for carrying ou...	07/22/1986
4557733	Formcoke process Green coal is charred in pre- and post- treatment carbonizers, then crushed, mixed with pitch, briquetted, tempered in a tempering oven, recirculated with succeeding green coal to char in a reducing atmosphere through only the latter part of the pre-treat...	12/10/1985
4410472	Method for making spherical binderless pellets A method for making spherical binderless pellets using a rotating drum mixer whereby at least a portion of the particles comprising the pellets is comprised of coking coal particles....	10/18/1983
4345914	Method of heating fine-grained solids A process for heating fine-grained solids, especially carbonaceous solids such as coke or oil shale, by a process wherein solids are heated to 500° to 920° C. in direct contact with hot gases in a plurality of heating stages, the last of which is a flui...	08/24/1982
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
4304573	Process of beneficiating coal and product Mine run coal is pulverized and the extended surfaces of the coal particles are rendered hydrophobic and oilophilic by a chemical bonding and graft polymerization reaction with a water unsoluble organic polymerizable monomer under peroxidation influence i...	12/08/1981
4293312	Combustible compositions and processes for their production An ignitable combustible composition comprising a matrix of solid resin having distributed therethrough combustible liquid, e.g. kerosene, water and contains also up to 25% by weight of a particulate non-combustible solid having a specific surface area of...	10/06/1981
4278447	Methods for producing feedstock for a fixed bed gasifier from finely-divided coal A process for producing a feedstock for a fixed bed gasifier from finely-divided coal by treating the coal in a first stirred semi-fluidized carbonizer reaction zone to produce particulate coal derived solids larger than the finely-divided coal charged to...	07/14/1981
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
4259167	Formation of caking coals Highly caking coals are formed by selective oxygen-alkylation or oxygen-acylation of moderately, weakly or non-caking coals, employing a phase transfer reaction which chemically alters phenolic and carboxylic functional substituents. These two very polar ...	03/31/1981
4252539	Solid fuel composition A process for the production of a normally solid fuel composition wherein solvent refined coal is combined with raw coal at a temperature in the range of 200° to 400° C. and the product produced thereby. The resulting product, on cooling, is a hard, non...	02/24/1981
4248669	Process for making metallurgical coke using fluidizer char The present invention is an improvement in the known process of making a coking feedstock from non-caking or weakly caking coals for slot-type coke ovens wherein the coal is subjected to solvent extraction; and at least the non-distillable extract in the ...	02/03/1981
4244700	Method of and apparatus for heat processing of pulverized solid fuel According to the invention pulverized solid fuel is processed by heating the fuel to a temperature at which thermal decomposition of the fuel begins and subsequently heating the fuel to a temperature at which an intense thermal decomposition of the fuel t...	01/13/1981
4218288	Apparatus and method for compacting, degassing and carbonizing carbonaceous agglomerates An apparatus for compacting, degassing and carbonizing carbonaceous agglomerates, the apparatus comprising a rotary kiln having an agglomerate inlet means for introducing green agglomerates into the kiln near the inlet of the kiln and a heating medium inl...	08/19/1980
4187079	Method for producing form coke A method for the production of form coke, such as coke for use in the smelting industry as blast furnace coke and also in electro-metallurgical facilities, comprising, coking a high volatile coal containing at least 35% volatile constituents so as to remo...	02/05/1980
4181502	Method of producing form coke A method of producing form coke, particularly metallurigical coke for a blast furnace, comprises, mixing at least two fine ground coal components, of which one is a non-caking component containing only little of volatile matter and comprises an oil coke, ...	01/01/1980
4156595	Formcoke process and apparatus A process for producing formcoke composed of char and selected binders comprising process steps in which non-oxidative thermal carbonization is employed....	05/29/1979
4138223	Manufacture of pellets from coal liquefaction products The effluent slurry product from a coal liquefaction reactor is split into two streams. The first stream is subjected to vacuum distillation to produce a vacuum bottoms. The second stream is mixed with particulate char to form a solids-enriched slurry fee...	02/06/1979
4138221	Manufacture of pellets from coal conversion products The manufacture of pellets from pumpable non-distillable coal conversion products is accomplished as follows. The non-distillable product is split into two streams. A pelletizable composition is made from a mixture of one stream with char made from the ot...	02/06/1979
4135888	Enriched fuel making and sewage treating process Particulate coke and raw sewage are mixed and conveyed as a slurry through series connected, pressure sealed chambers into which super-heated steam is injected to convert the mixture into a molten mass depleted of noxious gases and volatiles. The molten m...	01/23/1979
4127391	Process for making coke from bituminous fines and fuels produced therefrom A process for agglomerating bituminous fines into a useful low-sulfur particulated fuel by subjecting the bituminous fines to an autoclaving treatment at a controlled elevated temperature and controlled high pressure for a period of time sufficient to con...	11/28/1978
4121910	Treating carbonaceous material A method of treating a solid carbonaceous material comprising essentially lignite or bituminous or subbituminous coal to provide therefrom finely dispersed solid particles substantially free of ash and sulfur, by mixing the solid material with a liquid aq...	10/24/1978
4111755	Method of producing pelletized fixed sulfur fuel A fixed sulfur fuel is produced by proportioning sulfur-bearing coal and limestone in amounts which will cause the calcium in the limestone to react with a large amount of sulfur in the coal. The proportioned mixture is ground and blended and then balled ...	09/05/1978
4102750	Process for producing formed coke for metallurgical use Process for producing formed coke for metallurgical use from coal powder by continuously heating with a high temperature gas as heating medium for carbonizing agglomerated coal which are made of coal powder and a binder such as coal tar, pitch and petrole...	07/25/1978

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Class 44/599 - With chemical reaction (e.g., carbonizing.etc.)