Carbonized Material (e.g., Coke, Etc.) Patents (Class 44/591)
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Patent number: 11152666Abstract: The present invention relates to a battery separator containing a composite that in turn contains the following components: (A) 5 to 95 wt.-% of at least one carrier material that consists of glass fibers, the carrier material being selected from the group comprising nonwovens, laid scrims, knitted fabrics, woven fabrics and/or mixtures thereof; (B) 5 to 95 wt.-% of at least one glass platelet having an average thickness of 0.05 ?m to 30 ?m; and (C) 0 to 95 wt.-% of at least one binder; the components (A), (B) and (C) adding up to 100 wt.-% and the battery separator having a porosity in the range of 10 to 70% and a total thickness of 0.01 mm to 0.5 mm. The present invention further relates to methods for producing the battery separator and to the use thereof in a battery.Type: GrantFiled: April 3, 2018Date of Patent: October 19, 2021Assignee: Vitrulan Textile Glass GmbHInventors: Heiko Zettl, Thorsten Gerdes, Ulrich Schadeck
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Patent number: 8956426Abstract: A process for torrefaction of biomass is provided in which biomass are passed into a fluidized bed or a non-fluidized bed reactor and heated to a predetermined temperature in an oxidizing environment. The dried biomass is then fed to a cooler where the temperature of the product is reduced to approximately 100 degrees Fahrenheit.Type: GrantFiled: April 12, 2011Date of Patent: February 17, 2015Assignee: River Basin Energy, Inc.Inventors: Vijay Sethi, Clinton B. Camper
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Patent number: 8932050Abstract: A system for calcination of oil green coke has a rotating furnace and a rotating cooler, the furnace being serviced by boiler, a combustion chamber and a chimney. There is a feeding system defined by a first mat carrying the green coke into a silo and another mat transporter to feed the furnace. At the end of the silo there are two discharge breadths for the oil green coke, where each breadth has two drawer-like feeders for feeding the green coke onto the mat transporter and, from this to the inside of the rotating furnace through a fall set.Type: GrantFiled: September 16, 2010Date of Patent: January 13, 2015Assignee: Petrocoque S/A Indústria e ComércioInventors: Edinaldo Pereira da Silva, Elcio Santana, Manuel Lind Gomes, Ivo Ribeiro da Rocha, Genivaldo Linhares Brandão
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Patent number: 8920607Abstract: A method for producing individual compacts made of coke and suitable for coke oven chambers by dividing a coal cake in a non-mechanical manner, wherein the coal cake is produced by a compression method according to the prior art and the coal cake is divided by non-mechanical, energy-supplying media, and the non-mechanical media supplying shearing energy are, for example, a laser beam, a high-pressure water jet, an abrasive-solid jet, an ultrasonic beam, a compressed-air jet, or a gas jet. By using the method, coal compacts can be produced from coal cakes without forming dust, without wearing out cutting tools, and with high precision.Type: GrantFiled: December 14, 2010Date of Patent: December 30, 2014Assignee: ThyssenKrupp UHDE GmbHInventor: Ronald Kim
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Patent number: 8888960Abstract: A method for compacting coal in a manner suitable for coke oven chambers is described. The coal is initially compressed by means of a suitable compressing device into one or more coal cakes, and the obtained coal cakes are divided into compacted products by a cutting device. The compacted products are stacked on top of the each other such that they can be loaded into a coke oven chamber for coking. The compacted products enable the coke oven chambers to be loaded in a precise and a coal loss-free manner. The coal compacted products are easy to store.Type: GrantFiled: February 13, 2010Date of Patent: November 18, 2014Assignee: Thyssenkrupp UHDE GmbHInventor: Ronald Kim
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Publication number: 20140208639Abstract: A char composition made by an oxygen-starved microwave process from an organic-carbon-containing feedstock is described. Feedstock is introduced into a substantially microwave-transparent reaction chamber. A microwave source emits microwaves which are directed through the microwave-transparent wall of the reaction chamber to impinge on the feedstock within the reaction chamber. The microwave source may be rotated relative to the reaction chamber. The feedstock is subjected to microwaves until the desired reaction occurs to produce a fuel. A catalyst can be mixed with the feedstock to enhance the reaction process.Type: ApplicationFiled: November 9, 2013Publication date: July 31, 2014Inventors: Douglas M. Van Thorre, Michael L. Catto
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Publication number: 20140190074Abstract: A method for treating coal includes drying coal in an initial drying step. The dried coal is pyrolyzed in a pyrolysis step to form coal char and evolved gases. The coal char is eventually cooled and blended. The evolved gases are condensed in at least two, preferably three or more, distinct zones at different temperatures to condense coal-derived liquids (CDLs) from the evolved coal gas. Noncondensable gases may be returned to the pyrolysis chamber as a heat-laden sweep gas, or further processed as a fuel stream. The CDLs may optionally be centrifuged and/or filtered or otherwise separated from remaining particulate coal sludge. The sludge may be combined with coal char, optionally for briquetting; while the CDLs are stored. Precise control of the condensing zone temperatures allows control of the amount and consistency of the condensate fractions collected.Type: ApplicationFiled: January 9, 2014Publication date: July 10, 2014Applicant: C2O Technologies, LLCInventors: Franklin G. Rinker, Timothy J. Kuhn
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Patent number: 8702821Abstract: The present description relates to a method and system for generating a fuel pellet from high sulfur fuel waste materials having a reduced SO2 emission. In one example, the fuel pellet may include petroleum coke, a biomass constituent, and an alkali substituent. Further in another example, the fuel pellet may include iron oxide catalyst increasing the capture of SO2.Type: GrantFiled: June 18, 2012Date of Patent: April 22, 2014Assignee: Elite Fuels LLCInventors: Donald Ray Blackmon, Gerald Joseph Byrd, Sr.
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Patent number: 8702820Abstract: The present description relates to a method and system for generating a fuel pellet from high sulfur fuel waste materials having a reduced SO2 emission. In one example, the fuel pellet may include petroleum coke, a biomass constituent, and an alkali substituent.Type: GrantFiled: March 8, 2012Date of Patent: April 22, 2014Assignee: Elite Fuels LLCInventors: Donald Ray Blackmon, Gerald Joseph Byrd, Sr.
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Patent number: 8673032Abstract: The present invention provides methods of transforming low rank coals into high quality metallurgical coke, and the coke products produced by such methods.Type: GrantFiled: April 6, 2012Date of Patent: March 18, 2014Assignee: GTL Energy Holdings Pty LimitedInventors: Robert French, Robert A. Reeves
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Publication number: 20120255224Abstract: The present invention provides methods of transforming low rank coals into high quality metallurgical coke, and the coke products produced by such methods.Type: ApplicationFiled: April 6, 2012Publication date: October 11, 2012Applicant: GTL ENERGY LTDInventors: Robert French, Robert A. Reeves
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Publication number: 20120066967Abstract: A process for treating input coal includes treating input coal in a pyrolysis step to form coal char. The pyrolysis step includes heating the coal substantially in the absence of oxygen to remove volatile material from the coal. The volatile material evolved from the coal in the pyrolysis step is treated to separate the volatile material into gases and liquids, wherein the liquids contain condensed volatile material. A portion of the liquids is directed to the coal char, and the returned portion of the liquids is mixed with the coal char, thereby returning some of the volatile material to the coal char.Type: ApplicationFiled: September 16, 2011Publication date: March 22, 2012Inventor: Franklin G. Rinker
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Publication number: 20120030998Abstract: Relatively high speed methods for increasing the bulk density of coal particles without impacting the coal particles and an apparatus for compacting coal for making metallurgical coke. The method includes depositing coal particles onto a charging plate external to a coking oven. The charging plate has side walls, and at least one movable end wall to provide an elongate bed of dry, uncompacted coal having an upper surface on the charging plate. The uncompacted coal is compacted by passing a vibratory cylindrical compactor along a length of the uncompacted coal for a number of passes sufficient to decrease a thickness of the bed of coal to less than about 80 percent of an original thickness of the uncompacted coal. The vibratory cylindrical compactor has a length to diameter ratio ranging from about 1.4:1 to about 2:1.Type: ApplicationFiled: August 3, 2010Publication date: February 9, 2012Applicant: SUNCOKE ENERGY, INC.Inventors: Michael P. BARKDOLL, John SANOR, Richard C. RETORT
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Patent number: 8105516Abstract: The invention relates to a method and apparatus for producing a coal cake for coking, in which a bed (3) of coal is compacted in a mold (2) by pulses of hammers (19) which act on the bed, and is solidified to form a block. In accordance with the invention the bed (3) is not only worked on in pulses by the hammers (19) but is also subjected to compression.Type: GrantFiled: June 20, 2007Date of Patent: January 31, 2012Assignee: FLSmidth A/SInventors: Norbert Fiedler, Peter Gross, Franz Steiner
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Publication number: 20110167715Abstract: The invention provides low-cost, non-thermal methods to transform and beneficiate bulk materials, including low rank coals such as peat, lignite, brown coal, subbituminous coal, other carbonaceous solids or derived feedstock. High pressure compaction and comminution processes are linked to transform the solid materials by eliminating interstitial, capillary, pores, or other voids that are present in the materials and that may contain liquid, air or gases that are detrimental to the quality and performance of the bulk materials, thereby beneficiating the bulk products to provide premium feedstock for industrial or commercial uses, such as electric power generation, gasification, liquefaction, and carbon activation. The handling characteristics, dust mitigation aspects and combustion emissions of the products may also be improved.Type: ApplicationFiled: March 11, 2011Publication date: July 14, 2011Applicant: GTL ENERGY, LTDInventors: Robert R. French, Robert A. Reeves
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Patent number: 7909896Abstract: An improved process for the production of smokeless (low CO2—CO emitting) boiler fuels which have been obtained by careful temperature control and the addition of waste, trash or other carbonaceous material during carbonization of various coal materials such as tar sands, bituminous coal, peat lignite, and oil shale.Type: GrantFiled: November 27, 2001Date of Patent: March 22, 2011Assignee: Bennett Engineers and Associates of Austin ColoradoInventor: Harold L. Bennett
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Patent number: 7846301Abstract: A method of production of blast furnace coke comprising drying mixed coal, then, or simultaneously with the drying, classifying it to fine-grained coal and coarse-grained coal, then adding to the fine-grained coal at a temperature of 80 to 350° C. a caking additive comprised of one or more of a heavy distillate of tar, soft pitch, and petroleum pitch, agglomerating it by hot pressing, then mixing the clumps of coal and the coarse-grained coal and charging and carbonizing the mixture in a coke oven.Type: GrantFiled: May 12, 2006Date of Patent: December 7, 2010Assignee: Nippon Steel CorporationInventors: Kenji Katou, Isao Sugiyama, Yoshiaki Nakashima, Hiroshi Uematsu, Takashi Arima, Masahiko Yokomizo, Michitaka Sakaida
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METHOD OF PRODUCING CARBONACEOUS MATERIAL-CONTAINING BRIQUETTES USING STEEL MILL DUST CONTAINING OIL
Publication number: 20100218420Abstract: The present invention is directed to providing a production method capable of producing carbon composite briquettes having sufficient strength without excessively reducing a production capacity, even using steel mill dust containing oil. This method comprises: adding at least a carbonaceous material and a binder to steel mill dust containing oil and mixing them to form a powdery mixture; compacting the powdery mixture by means of a pressure roll to produce briquettes; and recognizing an increase/decrease in an oil content of the powdery mixture to adjust a rotation speed of the pressure roll so as to lower the rotation speed along with an increase in the oil content.Type: ApplicationFiled: August 25, 2008Publication date: September 2, 2010Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.)Inventors: Takao Harada, Hideaki Fujimoto, Hidetoshi Tanaka -
Publication number: 20090211151Abstract: A reactor is provided for converting organic material to charcoal, with the reactor having a furnace and a retort extending through the furnace. The retort has an auger extending therethrough, with the auger having a flight with gaps therein. Members project inwardly from the walls of the retort at the gaps in the flight to unplug blockages in the retort. A gas collection system is provided which has a branched portion having two or more venting tubes, each with valves so that each may be shut off independently to allow to off-line cleaning without requiring shutdown of the system. A method for converting organic material may be practiced by introducing combustible materials into the reactor.Type: ApplicationFiled: April 1, 2009Publication date: August 27, 2009Inventor: John Flottvik
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Patent number: 7008573Abstract: Provided are an amorphous coke for a special carbon material characterized in that it is an amorphous coke obtained by blending a coal tar base heavy oil and/or a petroleum base heavy oil with a resin and subjecting the mixture to thermal decomposition polycondensation; it has a larger thermal expansion coefficient than that of a coke obtained from a heavy oil alone; and a molded article of the coke is shrunk by 0.3% or more in terms of a volume change rate before and after the treatment when it is subjected to graphitizing treatment, and a production process of an amorphous coke for a special carbon material characterized in that in subjecting a coal tar base heavy oil or a petroleum base heavy oil to thermal decomposition polycondensation, the raw material is blended with a resin to modify a coke crystal structure.Type: GrantFiled: October 26, 2001Date of Patent: March 7, 2006Assignee: Nippon Steel Chemical Co., Ltd.Inventors: Taisa Ikeda, Tetsusei Fukuda, Yoichi Kawano
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Patent number: 6902589Abstract: 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 mixture of several binding agents, at least one of which contains water. The mixture of carbon-bearing material and binding agent is then formed into shaped bodies. According to the invention, in order to consolidate the grain formation, these are dried until they exhibit a maximum total water content of 3% by wt. in relation to the shaped body. The shaped bodies which have been formed and dried in this manner are then subjected to a carbonization and subsequently a gas activation process.Type: GrantFiled: June 6, 2000Date of Patent: June 7, 2005Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Joachim Guderian, Volker Heil, Christian Horn, Michael Feseker, Jens Sohnemann
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Patent number: 6793697Abstract: A solid fuel composition of spent coffee grounds and/or green coffee bean waste, sawdust and a wax binder is useful for manufacturing a fire-log with more flame output. This combination of solid particulate together with wax burns with a natural-sounding sizzling and crackling. The fuel composition also develops cracks as it burns, in much the same way as natural wood logs do. The cracks expose more surface area to combustion air, thereby enhancing flame output.Type: GrantFiled: March 20, 2002Date of Patent: September 21, 2004Inventors: Rodney K. Sprules, Joanne M. Johnson
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Patent number: 6602306Abstract: An artificial firelog comprising a mixture of combustible materials and a combustible binder further contains particulate coke comprising about 1% to about 35% by weight of the firelog, the coke particles having a size less than about 4 mm, to create a realistic crackling sound that mimics the sounds produced during the burning of natural logs. The particulate coke has a preferred moisture content between about 2% and about 20% by weight. The particulate coke may be combined in predetermined ratios with other established crackle additives including natural additives such as coriander seed to extend the time period during which the burning artificial firelog crackles. Preferably, the particulate coke comprises metallurgical coke.Type: GrantFiled: April 18, 2001Date of Patent: August 5, 2003Assignee: Duraflame, Inc.Inventors: Andrew T. Scott, Eric D. Barford, James E. Houck
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Publication number: 20030097784Abstract: An improved process for the production of smokeless (low CO2—CO emitting) boiler fuels which have been obtained by careful temperature control and the addition of waste, trash or other carbonaceous material during carbonization of various coal materials such as tar sands, bituminous coal, peat lignite, and oil shale.Type: ApplicationFiled: November 27, 2001Publication date: May 29, 2003Inventor: Harold L. Bennett
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Patent number: 6524354Abstract: 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 range of 760 to 800 kg/m3, mixing 10-100% of the resultant calcined petroleum coke with 0 to 50% coke breeze, pre-soaking the mix so obtained with 5-10% water, mixing with hinder followed by kneading in presence of live stream, then briquetting and curing of the raw briquettes in a furnace in a controlled oxidising atmoshpere to obtain the low ash fuel.Type: GrantFiled: March 30, 2001Date of Patent: February 25, 2003Assignee: Council of Scientific and Industrial ResearchInventors: Paras Nath Sinha, Partha Sengupta, Kali Sankar Bhattacharya
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Publication number: 20010047614Abstract: A process and an installation for treating solid carbonaceous material comprises heating the material to a temperature of about 1800° C. or higher, by means of a non-transfer arc generated plasma flame. This causes components of, or present in, the carbonaceous material to be gasified and thus to be separated or removed from any residual solid material as a hot gas phase, with residual solid material being obtained as a product. The installation comprises a vertical shaft non-transfer arc plasma reactor comprising an upper preheating zone (14) an intermediate reaction zone (16) in which at least one non-transfer arc plasma generator or reactor (40) is located and a lower cooling zone (18).Type: ApplicationFiled: February 27, 2001Publication date: December 6, 2001Inventors: Jacobus Swanepoel, Ruan Lombaard, Julian Charles Mast-Ingle
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Patent number: 6231627Abstract: A method and composition are disclosed to reduce the oxidative deterioration of bulk materials. Preferred embodiments of bulk materials include solid fuel materials, such as coal, and bulk food products. The method includes sizing a bulk material so that it has a porosity of 40% or less. This relatively low porosity reduces the surface area of the bulk material available to the ambient environment for oxidation. The method of sizing the bulk material may be combined with the step of contacting the bulk material with an inert gas or a heat transfer medium.Type: GrantFiled: December 22, 1998Date of Patent: May 15, 2001Assignee: Hazen Research, Inc.Inventors: Robert A. Reeves, Charlie W. Kenney, Mark H. Berggren
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Patent number: 6090312Abstract: New process designs are presented for reforming reactions of steam with hydrocarbons (such as methane, natural gas, light hydrocarbon feedstocks with one to four carbon atoms in each molecule), also for the water gas shift reaction that is of steam with carbon monoxide; also for carbon dioxide reforming of hydrocarbons (such as methane, acidic natural gas, coal gas, landfill gas, light hydrocarbon feedstocks with one to four carbon atoms in each molecule), and the combined reaction of steam carbon dioxide with same hydrocarbons. The processes employ organic polymer, organic polymer-inorganic support, and inorganic membrane permeators for species separation, with the permeators placed after the reactors where the above named reactions take place. The membranes in permeators separate selectively the H.sub.2 and CO.sub.2 species exiting from the reactors from the non-permeated reactants and products.Type: GrantFiled: January 31, 1996Date of Patent: July 18, 2000Inventors: Zoe D. Ziaka, Savvas Vasileiadis
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Patent number: 6033528Abstract: 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 T.sub.0 (T.sub.0 .ltoreq.T +40.degree. C.) at a rate of 1.times.10.sup.3 to 1.times.10.sup.6 .degree. C./min to a temperature region from (T -60.degree. C.) to (T +10.degree. C.) wherein T represents the softening initiation temperature of the non-slightly-caking coal; or rapidly heating a non-slightly-caking coal having softening initiation temperature T and a caking coal having softening initiation temperature T.sub.1 separately at a rate of 1.times.10.sup.3 to 1.times.10.sup.6 .degree. C./min to a temperature region from (T -100.degree. C.) to (T +10.degree. C.), wherein T represents the softening initiation temperature of the non-slightly-caking coal, or a temperature region from (T.sub.1 -100.degree. C.) to (T.sub.1 +10.degree. C.), wherein T.sub.Type: GrantFiled: January 13, 1997Date of Patent: March 7, 2000Assignee: The Japan Iron and Steel FederationInventors: Mitsuhiro Sakawa, Masaki Sasaki, Makoto Matsuura, Ikuo Komaki, Kenji Kato
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Patent number: 5919277Abstract: Disclosed is a method to reduce oxidative deterioration of bulk materials. Preferred embodiments of bulk materials include solid fuel materials, such as coal, and bulk food products. The method includes contacting a bulk material with a heat transfer medium to reduce the temperature of the bulk material below ambient temperature, and preferably below about 10.degree. C. In this manner, the rate of oxidation is sufficiently low so that significant losses, such as the loss of thermal values in of fuel material, are avoided. The heat transfer medium can be solid or fluid and in a preferred embodiment is liquid carbon dioxide or liquid nitrogen.Type: GrantFiled: December 22, 1997Date of Patent: July 6, 1999Assignee: Hazen Research, Inc.Inventors: Robert A. Reeves, Charlie W. Kenney, Mark H. Berggren
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Patent number: 5916827Abstract: There is disclosed a briquette and a method of making the briquette, wherein the briquette includes a first quantity of carbon fines and a second quantity of a material in powdered form which contains iron or a similar metal, or an oxide thereof, the second quantity being sufficiently large that the slippery nature of the carbon fines is suppressed, and the overall density of the briquette is increased.Type: GrantFiled: June 29, 1998Date of Patent: June 29, 1999Assignee: Exothermic Distribution CorporationInventor: Pierre Vayda
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Patent number: 5912192Abstract: 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 carbonized wood, from about 22 to about 34 percent barium nitrate, from about 3 to about 11 percent sodium nitrate, from about 3 to about 11 percent starch, from about 0.25 to about 0.65 percent zeolite, and from about 0.25 to about 0.65 percent potassium alum, the total of the constituents of the fire-igniting layer being 100 percent. The fire-catching layer has a composition, in weight percent, of from about 57 to about 67 percent carbonized wood, from about 18 to about 28 percent barium nitrate, from about 3 to about 11 percent sodium nitrate, from about 4 to about 12 percent starch, from about 0.15 to about 0.35 percent zeolite, and from about 0.15 to about 0.35 percent potassium alum, the total of the constituents of the fire-catching layer being 100 percent.Type: GrantFiled: August 28, 1998Date of Patent: June 15, 1999Assignee: Supernova Clean WorldInventors: Jong-Hyun Kim, Eun-Hee Cirlin
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Patent number: 5893946Abstract: A combustible carbonaceous composition and method of making a charcoal briquette wherein a finely divided carbonaceous material is combined with an activated carbon and/or an activated graphite (which may be formed in-situ during pyrolysis of the composition by reacting a humic-containing ore with a low VOC-containing carbon and/or graphite). The combustible carbonaceous composition is present in the briquette composition in an amount of about 65% to about 99.9% by weight; a binder is included in the composition in an amount of about 1% to about 15% by weight when forming a charcoal briquette or an igniter log; and the activated carbon and/or activated graphite is present in an amount of about 0.1% to about 20% by weight. The activated carbon and/or activated graphite absorbs most of the VOCs entitled from the combustible carbonaceous material, thereby preventing the VOCs from escaping to the atmosphere.Type: GrantFiled: May 7, 1997Date of Patent: April 13, 1999Assignee: Amcol International CorporationInventor: Charles R. Landis
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Patent number: 5752993Abstract: A compressed briquette or other solid shape, object, or article useful as a coke substitute in blast furnaces disclosed as being manufactured so as to comprise a reaction product of fine carbonaceous material (such as coke breeze, coke fines, or petroleum coke), a reactive tar, and polymeric binder.Type: GrantFiled: November 15, 1996Date of Patent: May 19, 1998Assignee: Covol Technologies, Inc.Inventors: Craig Norman Eatough, George W. Ford, Jr., Richard C. Lambert
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Patent number: 5725613Abstract: Disclosed is a method to reduce oxidative deterioration of bulk materials. Preferred embodiments of bulk materials include solid fuel materials, such as coal, and bulk food products. The method includes contacting a bulk material with a heat transfer medium to reduce the temperature of the bulk material below ambient temperature, and preferably below about 10.degree. C. In this manner, the rate of oxidation is sufficiently low so that significant losses, such as the loss of thermal values in of fuel material, are avoided. The heat transfer medium can be solid or fluid and in a preferred embodiment is liquid carbon dioxide or liquid nitrogen.Type: GrantFiled: July 8, 1996Date of Patent: March 10, 1998Assignee: Hazen Research, IncInventors: Robert A. Reeves, Mark H. Berggren, Charlie W. Kenney
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Patent number: 5599361Abstract: A method and a solid fuel product, such as briquettes and pellets, comprising carbon fines, in the form of heretofore discardable coke breeze and/or coal fines and/or revert materials, bound together chemically into smaller pieces to substantially prevent degradation and which constitutes a source of high heat without creating significant pollution or smoke.Type: GrantFiled: January 25, 1996Date of Patent: February 4, 1997Assignee: Covol Technologies, IncInventor: George W. Ford, Jr.
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Patent number: 5487764Abstract: A method and a solid fuel product, such as briquettes and pellets, comprising carbon fines, in the form of heretofore discardable coke breeze and/or coal fines and/or revert materials, bound together chemically into smaller pieces to substantially prevent degradation and which constitutes a source of high heat without creating significant pollution or smoke.Type: GrantFiled: December 13, 1994Date of Patent: January 30, 1996Assignee: Covol Technologies, Inc.Inventor: George W. Ford, Jr.
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Patent number: 5486216Abstract: A method of upgrading characteristics of coke by forming a carbon coating on the pores of the coke by hydrocarbon cracking. A coke having its pores coated with a layer of carbon.Type: GrantFiled: January 6, 1995Date of Patent: January 23, 1996Assignee: The Regents of the University of CaliforniaInventors: Yoshihito Shigeno, James W. Evans
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Patent number: 5453103Abstract: A method and a solid fuel product, such as briquettes and pellets, comprising carbon fines, in the form of heretofore discardable coke breeze and/or coal fines and/or revert materials, bound together chemically into smaller pieces to substantially prevent degradation and which constitutes a source of high heat without creating significant pollution or smoke.Type: GrantFiled: January 21, 1994Date of Patent: September 26, 1995Assignee: Environmental Technologies Group International, Inc.Inventor: George W. Ford, Jr.
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Patent number: 5407560Abstract: A novel process is disclosed by which petroleum cokes and cracked oil can be produced by thermal cracking of a heavy petroleum oil to which a rare earth metal compound is added. The process produces petroleum cokes with an improved combustibility and promotes the yield of cracked oil at the same time.Type: GrantFiled: March 16, 1992Date of Patent: April 18, 1995Assignee: Japan Energy CorporationInventors: Shintaro Miyawaki, Kiyomi Ishii, Mamoru Yamane
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Patent number: 5296005Abstract: A method of recovering coal liquids and producing metallurgical coke utilizes low ash, low sulfur coal as a parent for a coal char formed by pyrolysis with a volatile content of less than 8%. The char is briquetted and heated in an inert gas over a prescribed heat history to yield a high strength briquette with less than 2% volatile content.Type: GrantFiled: September 25, 1992Date of Patent: March 22, 1994Assignee: Coal Technology CorporationInventors: Richard A. Wolfe, Chang J. Im, Robert E. Wright
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Patent number: 5264007Abstract: Fuel briquettes are made by blending a caking coal with pitch at a temperature above 100.degree. C. but below 200.degree. C. to form a pitch/coal alloy binder which is then hot-blended with any caking coke, especially petroleum coke and optionally finely-divided limestone. The pressed briquettes are then subjected to hardening heat treatment and are found to be resistent to mechanical deterioration on long-term storage.Type: GrantFiled: July 11, 1990Date of Patent: November 23, 1993Assignee: Applied Industrial Materials Corporation - AIMCORInventor: Gert-Wilhelm Lask
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Patent number: 5244473Abstract: A method is disclosed for bonding particles into briquettes wherein the particles to be briquetted are mixed with a phenolaldehyde resin and polyisocyanate in the presence of a catalyst, and the resulting mixture is briquetted. A phenolic-urethane polymer is formed to bond the particles and coat the briquette formed of said particles. Apparatus for carrying out the method is also disclosed.Type: GrantFiled: January 22, 1992Date of Patent: September 14, 1993Inventors: Kashinath S. Sardessai, Thomas S. Pollok
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Patent number: 5078927Abstract: 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.degree. C. and up to 200.degree. C. to form a pitch/coal alloy. This hot binder composition is mixed with sand and a noncaking carbon carrier at a temperature in this range to form the starting composition from which preforms are pressed. The preforms are subjected to a heat treatment which involves raising the temperature to above 450.degree. C., preferably in a sand filled rotary furnace to harden the preforms into the bodies.Type: GrantFiled: July 11, 1990Date of Patent: January 7, 1992Assignee: Applied Industrial Materials Corporation - AIMCORInventor: Gert-Wilhelm Lask
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Patent number: 4978477Abstract: Process for the treatment of a hazardous material containing a thermochemically destructible component comprising contacting the material with a carbon char, thereafter loading the carbon char into a reaction vessel having two ends, initiating a flame front at one end of the loaded vessel, introducing an oxidant to the other end of the vessel, and allowing the flame front to move through the carbon char in the direction of the end through which the oxidant is introduced and away from the end at which the flame front was initiated.Type: GrantFiled: March 30, 1990Date of Patent: December 18, 1990Assignee: Chem Char Research, Inc.Inventors: David W. Larsen, Stanley E. Manahan
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Patent number: 4908167Abstract: 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.degree. C. A second component is formed by at least one binding agent that is pyrolytically decomposable. Each of the components has a mean mixing and deformation temperature such that the mean temperature of the first component is above a standard mixing and deforming temperature while the mean temperature of the second component is below the standard temperature. The standard temperature is such that a pyrolysis and degassing performed at the standard temperature does not destroy the binding ability of the second component. The second component constitutes about 15% by weight to about 50% by weight of the total mixture. Further, the second component is at least partly a liquified bituminous material having a mean CCT-value above 20%.Type: GrantFiled: March 14, 1989Date of Patent: March 13, 1990Assignee: Laborlux S. A.Inventors: Franz Beckmann, Armand Wagner
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Patent number: 4849021Abstract: 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 decomposition at a temperature of 500.degree. to 2,000.degree. C.; and cooling the carbonized solids;(b) ultrafine pulverization step, which comprises preparing a slurry of the carbonized solids having a solids content of 10 to 50% by weight by adding a dispersion medium to the carbonized solids; and ultrafinely pulverizing the carbonized solids dispersed in the slurry to reduce the average particle size to not more than 5 .mu.m;(c) agglomeration step, which comprises adjusting the solids content of the slurry to 1 to 20% by weight by further adding water to the slurry of the ultrafinely pulverized solids; adding an oil having a boiling point of not more than 150.degree. C.Type: GrantFiled: May 6, 1988Date of Patent: July 18, 1989Assignee: Idemitsu Kosan Co., Ltd.Inventors: Masayuki Nakai, Kenji Uesugi, Katsumi Tomura
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Patent number: 4822388Abstract: The operation of mineral wool cupolas is improved in several respects and a waste material is efficiently disposed of by using spent pot lining from electrolytic aluminum reduction vessels in the mineral wool cupolas as a partial or complete replacement for coke. The spent pot lining is impregnated with a cryolytic type slag material which aids in both reducing the reactivity of an already unreactive graphitic material such that it burns low in the cupola with desirable thermal results and also prevents the formation of siliceous build-up in the cupola hearth areas. Several variations of cryolytic impregnated carbonaceous materials having the desirable effect of the invention are possible and described.Type: GrantFiled: February 24, 1988Date of Patent: April 18, 1989Inventor: Kenneth H. Gee
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Patent number: 4809503Abstract: A solid fuel bar preferred to be pressed from cleaned coal powder to a high density is led into a combustion chamber. Air is compressed to high pressure and temperature exceeding the self ignition temperature of the fuel bar and this compressed air is led into a combustion place in the combustion chamber, where the tip of the fuel bar moves into the compressed hot air and ignites and burns therein. The burned and expanded air is led into an expander, which drives the compressor, whereby a running combustion engine is obtained. The invention discloses the details, by which the ignition and combustion of the solid fuel bar in the engine is obtained.Type: GrantFiled: August 19, 1987Date of Patent: March 7, 1989Inventor: Karl Eickmann
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Patent number: 4738684Abstract: A fuel briquette (10) comprises compacted moistened coal slack or dross particles (11) sealed in a waterproof combustible envelope (12). The particles (11) substantially fill the volume of the envelope.Type: GrantFiled: January 27, 1987Date of Patent: April 19, 1988Inventor: Patrick Murphy