Coal Treating Process Or Product Thereof Patents (Class 44/620)
  • Patent number: 10035967
    Abstract: A method for producing an ashless coal which includes a slurry preparation step, an extraction step, a separation step, an ashless coal acquirement step, and a by-product acquirement step. The separation step is conducted under the state of being pressurized to a pressure equal to or higher than a vapor pressure of the solvent. In the by-product acquirement step, the solvent is evaporated and separated from the solid content-concentrated slurry by spraying the solid content-concentrated slurry into a flash tank in which a pressure is set to lower than a saturation pressure of the solid content-concentrated slurry from a spray nozzle while maintaining a pressure of the solid content-concentrated slurry in a nozzle orifice of the spray nozzle at a level equal to or higher than the vapor pressure of the solvent.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: July 31, 2018
    Assignee: Kobe Steel, Ltd.
    Inventors: Takuya Yoshida, Noriyuki Okuyama, Shigeru Kinoshita, Koji Sakai
  • Patent number: 9702554
    Abstract: Sorbent compositions containing iodine are added to coal to mitigate the release of mercury and/or other harmful elements into the environment during combustion of coal containing natural levels of mercury.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: July 11, 2017
    Assignee: NOx II, Ltd.
    Inventor: Douglas C. Comrie
  • Patent number: 9278358
    Abstract: Method for industrial processing of charcoal ash (1) created in the power plants by separating a carbonaceous product from the mentioned charcoal ash to be reused and by gathering essentially carbon free, siliceous ash products gained during the processing.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: March 8, 2016
    Assignee: MICROPULVA LTD OY
    Inventors: Risto Mannonen, Jouko Niemi
  • Patent number: 9169453
    Abstract: Sorbent compositions containing halogen and calcium are added to coal to mitigate the release of sulfur and/or other harmful elements, including mercury, into the environment during combustion of coal containing natural levels of mercury.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: October 27, 2015
    Assignee: NOx II, LTD.
    Inventor: Douglas C. Comrie
  • Patent number: 9011557
    Abstract: Present embodiments include systems for reducing moisture in a solid feed provided to a gasifier. For example, in an embodiment, a feedstock preparation system includes an aspirator having a first inlet for receiving a flow of steam, a second inlet for receiving a flow of a moist gaseous phase from a grinding mechanism configured to grind a solid fuel in the presence of a conveyance gas. The moist gaseous phase includes the conveyance gas and moisture removed from the ground solid fuel. The aspirator also includes an outlet configured to output a reduced pressure flow having the steam and the moist gaseous phase. The aspirator is configured to enhance moisture removal from the ground solid fuel to produce a dry feed of the ground solid fuel. The aspirator discharge is recycled within the process to heat the incoming dry conveyance gas and improve system efficiency.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: April 21, 2015
    Assignee: General Electric Company
    Inventors: George Frederick Frey, George Morris Gulko
  • Patent number: 8992637
    Abstract: The present disclosure is directed to the application of additives to a feed material at a location remote from an industrial facility using the feed material.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: March 31, 2015
    Assignee: ADA-ES, Inc.
    Inventors: Kenneth E. Baldrey, Ramon E. Bisque, Michael D. Durham
  • Patent number: 8992638
    Abstract: Measurements are taken of moisture, BTU/lb (British Thermal Units per pound), ash, forms of sulfur, volatile material, grindability, and absorption properties of any of a wide variety of mine-run solid fuels. Using that information, a dry electromagnetic process technology has been developed that can be controlled and monitored to selectively alter and enhance metallurgical solid fuel properties. Specific changes include altering the mechanical structure and chemical composition of solid fuels such as coal, coal coke or petroleum coke, increasing the BTU/lb to optimum levels, decreasing all forms of sulfur, and decreasing ash, while maintaining the BTU/lb of the fuels. A new family of solid fuel designer coals not found in nature can be produced via these methods and apparatus.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: March 31, 2015
    Assignee: JY Capital Investment LLC
    Inventors: Jerry L. Weinberg, Neil E. Ginther, Jed A. Aten, Ru T. Wang
  • Publication number: 20150075961
    Abstract: There is provided a method for blending coals for coke production, in which the strength of coke produced from a coal blend serving as a raw material is estimated using a physical property that has not been taken into consideration in the past as an index, so that the method is capable of suppressing an increase in the raw material cost of the coal blend and increasing the strength of coal. Two or more coal brands are blended together to provide a coal blend for coke production. When the two or more coal brands are blended together, the coal brands and the blending ratio of the coal brands are determined using the surface tension of each of the coal brands subjected to heat treatment, the surface tension serving as a control index.
    Type: Application
    Filed: March 25, 2013
    Publication date: March 19, 2015
    Inventors: Kiyoshi Fukada, Hiroyuki Sumi, Hidekazu Fujimoto, Izumi Shimoyama, Takashi Anyashiki, Tetsuya Yamamoto, Yusuke Dohi
  • Publication number: 20150075962
    Abstract: Provided is a technique by which the compatibility between coals for cokemaking can be quantitatively determined to estimate the coke strength taking into account the compatibility and to select and blend coals based on the coke strength estimated taking into account the compatibility, thereby allowing the production of a coke with the desired strength. A method for blending coals for cokemaking includes predicting the strength of a coke to be produced from a blend of a plurality of coals based on a difference between the surface tensions of the plurality of coals after heat treatment and determining the types and proportions of the coals to be blended.
    Type: Application
    Filed: March 25, 2013
    Publication date: March 19, 2015
    Inventors: Izumi Shimoyama, Takashi Anyashiki, Kiyoshi Fukada, Hidekazu Fujimoto, Tetsuya Yamamoto, Hiroyuki Sumi
  • Publication number: 20150040468
    Abstract: Provided is a method for preparing a coal mixture used for the purpose of producing coke with desired strength by taking into account the compatibility between coals for cokemaking. In the case of preparing a coal mixture, used as at least one portion of a coal blend for cokemaking, containing two or more types of coals with different surface tensions, the blending ratio of each of the coals is adjusted using the surface tension of a semicoke mixture obtained from the coal mixture as an indicator.
    Type: Application
    Filed: March 25, 2013
    Publication date: February 12, 2015
    Applicant: JFE STEEL CORPORATION
    Inventors: Izumi Shimoyama, Takashi Anyashiki, Kiyoshi Fukada, Hidekazu Fujimoto, Hiroyuki Sumi
  • Publication number: 20150033619
    Abstract: A method for treating coal to reduce spontaneous combustion by reducing an exothermic heat of adsorption after the coal has begun to dry and when the coal is subsequently exposed to a liquid water is described. A source of a fluid pressure of a diluted hydrocarbon mixture is provided. A hydrocarbon in the mixture is a hydrocarbon emulsion of mineral when the coal is subsequently exposed to a liquid water oil, fuel oil, asphalt, or coal tar emulsions. A volume of the diluted hydrocarbon mixture is applied to a stream of freshly-mined and undried coal to provide a water-proofing of the coal to prevent water uptake after exposure to precipitation or flooding during transport and storage of the coal. The treated coal is loaded into a bulk pile. A temperature change trend in the bulk pile is reversed wherein a temperature of the bulk pile trends towards an ambient temperature rather than trending to a temperature higher than the ambient temperature.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 5, 2015
    Inventors: Andrew R. Wolff, Christopher F. Blazek, Michael T. Such
  • Patent number: 8945247
    Abstract: The inventive technology includes methods and apparatus for the generation and application of segregated catalytic additives for the pre-combustion treatment of carbonaceous fuel and/or feedstocks. The application of such segregated additives results in the reduction of environmentally harmful emissions during combustion as well as gasification processes. Specifically, pre-combustion treatment of carbonaceous materials with the inventive additives results in the reduction of NOx and/or mercury emissions by least 20% and 40% respectively.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: February 3, 2015
    Assignee: VRC Techonology, LLC
    Inventors: Marcus A. Wiley, Matthew A. Cotton, Darlene K. Sherrod, Marcus K. Wiley, Thomas K. Gale, Timothy P. Lenneman
  • Patent number: 8920158
    Abstract: Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components: reduce emissions of elemental and oxidized mercury; increase the level of Hg, As, Pb, and/or CI in the coal ash; decrease the levels of leachable heavy metals (such as Hg) in the ash, preferably to levels below the detectable limits; and make a highly cementitious ash product.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: December 30, 2014
    Assignee: NOx II, Ltd.
    Inventor: Douglas C. Comrie
  • Patent number: 8920607
    Abstract: 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: Grant
    Filed: December 14, 2010
    Date of Patent: December 30, 2014
    Assignee: ThyssenKrupp UHDE GmbH
    Inventor: Ronald Kim
  • Patent number: 8915978
    Abstract: A method comprising applying a chemical change reagent to coal prior to combustion of the coal is provided. In some instances, the chemical change reagent can include an effective amount of a material to reduce NOx emissions, SOx emissions, or both from combustion of the coal.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: December 23, 2014
    Inventors: Melvin A. Richardson, James E. Lester, Joseph W. Hundley
  • Patent number: 8906120
    Abstract: A process for reducing the carbon content of ash from a burner comprises heating a carbon-based fuel in the presence of a fuel improver in a burner. The fuel improver comprises at least one metal oxide selected from the group comprising: iron oxide, calcium oxide, silicon dioxide, magnesium oxide and aluminum oxide. The average particle size of the fuel improver is reduced to give a particle size in the range 1 to 100 micron.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: December 9, 2014
    Inventors: Colin Metcalfe, David Dixon
  • Publication number: 20140352583
    Abstract: This mixed coal fuel is obtained by mixing a low-grade coal and residual coal. The residual coal is obtained by separating, through evaporation, a solvent from concentrated solids left over when a solution portion, which contains soluble coal components in solvent, is separated from a slurry obtained by mixing and heating coal and a solvent. Furthermore, the ratio (base/acid) of basic components to acidic components contained in ash of the residual coal is lower than that of the low-grade coal.
    Type: Application
    Filed: October 12, 2012
    Publication date: December 4, 2014
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Toshiya Tada, Yoji Takubo
  • Publication number: 20140345193
    Abstract: A method for deactivating coal, in which coal is deactivated with a treatment gas containing oxygen, wherein a deactivation step for deactivating the coal in a temperature range 45-70° C. is carried out.
    Type: Application
    Filed: December 21, 2012
    Publication date: November 27, 2014
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keiichi Nakagawa, Setsuo Omoto, Junji Asahara
  • Patent number: 8888960
    Abstract: 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: Grant
    Filed: February 13, 2010
    Date of Patent: November 18, 2014
    Assignee: Thyssenkrupp UHDE GmbH
    Inventor: Ronald Kim
  • Patent number: 8882862
    Abstract: The present disclosure provides methods and systems for coal liquefaction and obtaining a mesophase pitch. A method of obtaining a quinoline insoluble-free and ash-free mesophase pitch may include exposing a coal to a hydrogenated vegetable oil in the presence of a coal-derived solvent to form a slurry, elevating the temperature of the slurry to facilitate liquefying the coal and liberating a volatile matter, separating the insoluble components from the slurry to obtain a de-ashed coal extract that is quinoline insoluble-free, and distilling the coal extract under vacuum to obtain a mesophase pitch with a softening point in the range of 25 degrees Celsius to 160 degrees Celsius, wherein the mesophase pitch can be coked to obtain an anisotropic coke. A quinoline insoluble-free and ash-free pitch may be obtained by the method.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: November 11, 2014
    Assignee: West Virginia University
    Inventors: Alfred H. Stiller, Peter G. Stansberry
  • Patent number: 8845767
    Abstract: An iron salt of an organic acid, selected from formic acid, carboxylic acids having (3) or more carbon atoms and sulphonic acids, is used to reduce the carbon content of the fly ash, when coal is combusted.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: September 30, 2014
    Assignee: Innospec Limited
    Inventors: Ian McRobbie, Alan Ross, Victoria Pellegrini, James Barker, Katherine Le Manquais, Colin Snape
  • Patent number: 8845986
    Abstract: A flue gas additive is provided that includes both a nitrogenous component to reduce gas phase nitrogen oxides and a halogen-containing component to oxidize gas phase elemental mercury.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: September 30, 2014
    Assignee: ADA-ES, Inc.
    Inventors: Constance Senior, Gregory M. Filippelli, Cynthia Jean Bustard, Michael D. Durham, William J. Morris, Sharon M. Sjostrom
  • Patent number: 8821695
    Abstract: A coal reforming system includes a drying furnace for drying low-grade coal, a carbonizing furnace for carbonizing the dried low-grade coal, hot air generating furnaces for supplying hot air to the drying furnace or the carbonizing furnace, and a carbonizing gas circulation line for supplying a carbonizing gas, which is generated in the carbonizing furnace, as a fuel for the hot air generating furnaces while the temperature thereof is maintained.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: September 2, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Fumiaki Sato, Setsuo Omoto, Makoto Susaki
  • Patent number: 8734544
    Abstract: A solid fuel producing apparatus that even when supply of raw coal (RC) and mixed oil (MO) and supply of slurry to subsequent steps are stopped because of troubling at evaporation step or later, etc., would prevent cloggings of heat exchanger and raw coal supply means. The solid fuel producing apparatus includes a mixing tank (1) for mixing porous coal with a mixed oil having heavy oil and solvent oil contents to thereby obtain a raw slurry; an evaporator (2) for processing evaporation of water from the raw slurry by heating the same to thereby obtain a dewatered slurry; a solid-liquid separator (3) for separation of the mixed oil and upgraded porous coal from the dewatered slurry; and circulation means (4) for returning the mixed oil having been separated and recovered by the solid-liquid separator to the mixing tank. The solid fuel producing apparatus is characterized by having a mixed oil heating heat exchanger (5) for heating the mixed oil to be returned to the mixing tank by the circulation means.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: May 27, 2014
    Assignee: Kobe Steel, Ltd.
    Inventors: Takuo Shigehisa, Yuko Sugita
  • Patent number: 8716169
    Abstract: The present invention relates generally to the field of emission control equipment for boilers, heaters, kilns, or other flue gas-, or combustion gas-, generating devices (e.g., those located at power plants, processing plants, etc.) and, in particular to a new and useful method and apparatus for preventing the poisoning and/or contamination of an SCR catalyst. In another embodiment, the method and apparatus of the present invention is designed to protect an SCR catalyst, while simultaneously providing emission control.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: May 6, 2014
    Assignee: Babcock & Wilcox Power Generation Group, Inc.
    Inventors: Mandar R. Gadgil, S. Behrooz Ghorishi, Donald P. Tonn
  • Patent number: 8709239
    Abstract: A process is disclosed process for converting a solid or highly viscous carbon-based energy carrier material to liquid and gaseous reaction products, said process comprising the steps of: a) contacting the carbon-based energy carrier material with a particulate catalyst material b) converting the carbon-based energy carrier material at a reaction temperature between 200° C. and 450° C., preferably between 250° C. and 350° C., thereby forming reaction products in the vapor phase. In a preferred embodiment the process comprises the additional step of: c) separating the vapor phase reaction products from the particulate catalyst material within 10 seconds after said reaction products are formed. In a further preferred embodiment step c) is followed by: d) quenching the reaction products to a temperature below 200° C.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: April 29, 2014
    Assignee: KiOR, Inc.
    Inventors: Paul O'Connor, Dennis Stamires, Jacob Adriaan Moulijn
  • Patent number: 8703081
    Abstract: Sorbent compositions containing halogen and calcium are added to coal to mitigate the release of sulfur and/or other harmful elements, including mercury, into the environment during combustion of coal containing natural levels of mercury.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: April 22, 2014
    Assignee: NOx II, Ltd.
    Inventor: Douglas C. Comrie
  • Patent number: 8696770
    Abstract: The present invention relates to an apparatus and method for recycling coal ash comprising an unburned coal ash recovery unit and a lightweight aggregate manufacturing unit and is provided in an existing thermoelectric power plant and in which coal ash generated in the thermoelectric power plant is completely recycled for specific purposes using the coal ash recycling apparatus. According to the invention, the surrounding environment can be prevented from being contaminated during the transportation of waste to a recycling factory and transportation expenses can be reduced. Moreover, coal ash is completely recycled for specific uses, such that unburned carbon contained in the coal ash can be used. Also, coal ash can be recycled even as concrete admixtures having strict standards. In addition, the present invention can prevent environmental contamination caused by the landfilling of waste and recycle waste, thereby reducing the loss of land and the waste of resources.
    Type: Grant
    Filed: July 3, 2009
    Date of Patent: April 15, 2014
    Assignee: Ceragreen Co., Ltd.
    Inventor: Young Ho Jeong
  • Patent number: 8691719
    Abstract: The present invention relates generally to the field of emission control equipment for boilers, heaters, kilns, or other flue gas-, or combustion gas-, generating devices (e.g., those located at power plants, processing plants, etc.) and, in particular to a new and useful method and apparatus for reducing or preventing the poisoning and/or contamination of an SCR catalyst. In another embodiment, the method and apparatus of the present invention is designed to protect the SCR catalyst. In still another embodiment, the present invention relates to a method and apparatus for increasing the service life and/or catalytic activity of an SCR catalyst while simultaneously controlling various emissions.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: April 8, 2014
    Assignee: Babcock & Wilcox Power Generation Group, Inc.
    Inventors: Mandar R. Gadgil, S. Behrooz Ghorishi
  • Patent number: 8690971
    Abstract: A method is provided for reducing noxious emissions from the combustion of coal or other solid fuels wherein a suspension and/or a dispersing agent is combined with a catalyst having a high surface area to mass ratio so as to optimize the reduction of emissions such as NOx. In addition, the agent and/or catalyst is applied on the surface of the fuel in an evenly distributed manner so as to maximize the contact between the agent and/or catalyst and combustion gases and further maximize reduction of emissions.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: April 8, 2014
    Assignee: State Line Holdings, LLC.
    Inventors: Joseph W. Hundley, Steven A. Dunwoody
  • Patent number: 8673032
    Abstract: The present invention provides methods of transforming low rank coals into high quality metallurgical coke, and the coke products produced by such methods.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: March 18, 2014
    Assignee: GTL Energy Holdings Pty Limited
    Inventors: Robert French, Robert A. Reeves
  • Publication number: 20140053760
    Abstract: A method of reducing sulfur emissions by applying remediation materials in a powder sorbent onto coal and combusting the coal with the materials applied. The powder sorbent contain sources of silicon, aluminum, calcium, iron, and magnesium, and ash from combustion contains the captured sulfur.
    Type: Application
    Filed: November 4, 2013
    Publication date: February 27, 2014
    Applicant: NOx II, Ltd.
    Inventors: Douglas C. Comrie, Vincent A. Vellella
  • Patent number: 8658115
    Abstract: Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components reduce emissions of elemental and oxidized mercury; increase the level of Hg, As, Pb, and/or Cl in the coal ash; decrease the levels of leachable heavy metals (such as Hg) in the ash, preferably to levels below the detectable limits; and make a highly cementitious ash product.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: February 25, 2014
    Assignee: NOx II, Ltd.
    Inventor: Douglas C. Comrie
  • Patent number: 8652222
    Abstract: Particulate compositions are described comprising an intimate mixture of a biomass, such as switchgrass or hybrid poplar, a non-biomass carbonaceous material, such as petroleum coke or coal, and a gasification catalyst, where the gasification catalyst is loaded onto at least one of the biomass or non-biomass for gasification in the presence of steam to yield a plurality of gases including methane and at least one or more of hydrogen, carbon monoxide, and other higher hydrocarbons are formed. Processes are also provided for the preparation of the particulate compositions and converting the particulate composition into a plurality of gaseous products.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: February 18, 2014
    Assignee: GreatPoint Energy, Inc.
    Inventors: Pattabhi K. Raman, Edwin J. Hippo, Nelson Yee
  • Publication number: 20140041561
    Abstract: The present disclosure is directed to an additive mixture and method for controlling nitrogen oxide(s) by adding the additive mixture to a feed material prior to combustion.
    Type: Application
    Filed: August 12, 2013
    Publication date: February 13, 2014
    Applicant: ADA-ES, INC.
    Inventors: William J. Morris, Kenneth E. Baldrey, Constance Senior, Ramon Bisque
  • Publication number: 20130330677
    Abstract: The present invention relates to the use of coal to form a paste that can be used as a fuel or incorporated with other fillers to form pellets or briquettes. The paste is formed from crushed or powdered coal mixed in a liquid fuel and may be used as is or may be mixed with a carrier fuel prior to combustion or it could be mixed with other biomass fillers to produce a solid fuel.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 12, 2013
    Inventors: Joel Sterling Douglas, Michael Curtis
  • Patent number: 8597382
    Abstract: The present disclosure provides methods and systems for coal liquefaction using a rubber material. A method of obtaining a de-ashed coal extract includes exposing a coal to a rubber material in the presence of a coal-derived solvent to form a slurry, elevating the temperature of the slurry to facilitate liquefying the coal and liberating a volatile matter, and separating the insoluble components from the slurry to obtain a de-ashed coal extract, wherein the coal extract is suitable for downstream processing.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: December 3, 2013
    Assignee: West Virginia University
    Inventor: Alfred H. Stiller
  • Publication number: 20130312321
    Abstract: A method and apparatus for automatically sorting and blending coal and other fuel stocks through a computer-controlled process in order to achieve a specified blend of materials. By sorting fuel stocks with different characteristics into different stacking points, an operator can then automatically combine and uniformly blend these sorted fuel stocks to create a variety of blended materials with different properties tailored to the specific needs of the operator or end user. The computer-controlled nature of the process allows for precise blending in an automated and more efficient and reproducible fashion.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 28, 2013
    Applicant: GENERAL TRADE CORPORATION
    Inventor: Allen S. GOLDBERG
  • Patent number: 8585788
    Abstract: In embodiments of the present invention, a method of heat treating a solid fuel briquette may include heating the solid fuel briquette using energy from at least one of a heat furnace or an electromagnetic energy system of a solid fuel treatment facility as the solid fuel briquette is moved through the treatment facility to a specified internal temperature, and sealing the heat-treated solid fuel briquette in a vessel for a duration of time.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: November 19, 2013
    Assignee: CoalTek, Inc.
    Inventors: J. Michael Drozd, Michael C. Druga, Steven L. Lawson, Frederick Christopher Lang, Herbie L. Bullis
  • Patent number: 8585786
    Abstract: In embodiments of the present invention improved capabilities are described for a system and method for briquetting solid fuel before or after treatment with electromagnetic energy. In the system and method, solid fuel is transported through a continuous feed solid fuel treatment facility, treated using electromagnetic energy, and briquetted after treatment.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: November 19, 2013
    Assignee: CoalTek, Inc.
    Inventors: J. Michael Drozd, Steven L. Lawson, Michael C. Druga, Frederick Christopher Lang, Jan M. Surma, Herbie L. Bullis
  • Patent number: 8580214
    Abstract: Methods of treating mercury contaminated gas comprising: introducing a hydrogen halide selected from HBr and HI into a mercury contaminated gas stream containing a quantity of particulate matter at an introduction rate sufficient to create a concentration of at least 0.1 ppmvd; wherein greater than 50% of all particulate matter in the mercury contaminated gas stream is a native particulate matter; contacting a quantity of active bromine with the native particulate matter; creating a doped particulate matter; coating a filtration media with the doped particulate matter; and passing a portion of the mercury contaminated gas stream through the doped particulate matter on the filtration media and other related methods are disclosed herein.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: November 12, 2013
    Assignee: Shaw Environmental & Infrastructure, Inc.
    Inventors: Randall P. Moore, Kevin Jackson, Stephen Baloga, Bobby I. T. Chen, Berani A. C. Halley, John Edel
  • Patent number: 8579998
    Abstract: Measurements are taken of moisture, BTU/lb (British Thermal Units per pound), ash, forms of sulfur, volatile material, grindability, and absorption properties of any of a wide variety of mine-run solid fuels. Using that information, a dry electromagnetic process technology has been developed that can be controlled and monitored to selectively alter and enhance metallurgical solid fuel properties. Specific changes include altering the mechanical structure and chemical composition of solid fuels such as coal, coal coke or petroleum coke, increasing the BTU/lb to optimum levels, decreasing all forms of sulfur, and decreasing ash, while maintaining the BTU/lb of the fuels. A new family of solid fuel designer coals not found in nature can be produced via these methods and apparatus.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: November 12, 2013
    Assignee: CoalTek, Inc.
    Inventors: Jerry L. Weinberg, Neil E. Ginther, Jed A. Aten, Ru T. Wang
  • Publication number: 20130255142
    Abstract: A method for estimating the thermal plasticity of coal and a caking additive by observing the thermal plasticity of coal and a caking additive under the condition that sufficiently simulates an environment surrounding thermal plastic coal and a caking additive in a coke oven and to provide a method for preparing coal of a brand having a specified quality by making clear the required quality of a coal brand which can be ideally used for manufacturing high-strength coke by using the estimation method. A method for preparing coal for coke making, the method including adjusting a permeation distance of one or more kinds of coal to a specified value or less when plural coal brands are blended as materials to be used for coke making is used.
    Type: Application
    Filed: August 31, 2011
    Publication date: October 3, 2013
    Applicant: JFE STEEL CORPORATION
    Inventors: Yusuke Dohi, Izumi Shimoyama, Kiyoshi Fukada, Tetsuya Yamamoto, Hiroyuki Sumi
  • Patent number: 8545778
    Abstract: Sorbent compositions containing halogen and calcium are added to coal to mitigate the release of sulfur and/or other harmful elements, including mercury, into the environment during combustion of coal containing natural levels of mercury.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: October 1, 2013
    Assignee: NOx II, Ltd.
    Inventor: Douglas C. Comrie
  • Patent number: 8539891
    Abstract: An initial coal is cleaned to reduce ash content by ?20% and yield refined coal that optimizes combustion air flow through a coal burner. This permits conveyance of pulverized refined coal in suspended condition through feeder pipes of the coal burner using reduced air flow compared to the quantity of air required to convey pulverized initial coal in suspended condition through the feeder pipes. This reduces oxygen in the primary combustion zone, lowering conversion of fuel nitrogen into NOx and instead converting it into N2 using the refined coal product. Reduced primary combustion air also reduces core flame temperature, reducing thermal NOx formation using the refined coal product. Increasing secondary and/or tertiary combustion air compensates for reduced primary combustion air and result in overall decrease in NOx formation (e.g., thermal NOx formation is reduced when combustion completed in cooler secondary and/or tertiary combustion zones).
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: September 24, 2013
    Assignee: Headwaters Energy Services Corporation
    Inventors: Rafic Minkara, N. Stan Harding
  • Patent number: 8496894
    Abstract: The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: July 30, 2013
    Assignee: ADA-ES, Inc.
    Inventors: Michael D. Durham, Sharon Sjostrom, Kenneth E. Baldrey
  • Publication number: 20130145974
    Abstract: A fuel mixture characterized by reduced SOx and NOx emissions from combustion of the fuel, comprising: fuel; and an ester additive derived from reaction of i) a C6-C16 aliphatic straight chain or branched chain monocarboxylic acid, wherein aliphatic is defined as of or relating to a major group of organic compounds, structured in open or branched chains, including alkanes, e.g. paraffins, alkenes, e.g. olefins, and alkynes e.g., acetylenes, and either, ii) an aliphatic polyhydric alcohol having three or more primary alcohol groups, or iii) a C1-C16 aliphatic straight or branched chain monohydric alcohol. A method of reducing SOx and NOx emissions from combustion of the fuel, comprising: mixing fuel and an ester additive; and combusting the mixture, wherein SOx and NOx emissions are at least about 20% to about 40% w/w of the SOx and NOx emissions from combustion of the fuel without admixture with the ester additive.
    Type: Application
    Filed: June 1, 2011
    Publication date: June 13, 2013
    Inventor: Robert E. Brandt
  • Patent number: 8460407
    Abstract: The invention provides a micronized form of coal particles with improved characteristics for porosity, hydration and preservation of pristine surfaces. The coal of the invention can burn at low temperatures, avoiding emissions of nitrogen oxides, and also has improved properties for surfactant-free suspension in either water or oil media, as well as for liquefaction and gasification.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: June 11, 2013
    Inventor: David Walker Taylor
  • Publication number: 20130133247
    Abstract: A printing ink includes a micrometer-sized or nanometer-sized coal material. The micrometer-sized or nanometer-sized coal material is produced using a method of providing a controlled batch of micrometer-sized or nanometer-sized coal material. This method includes the steps of: (a) specifying at least one desired physical and/or chemical parameter of the controlled batch of coal material; (b) specifying the desired range of the physical and/or chemical parameter in the controlled batch of coal material; (c) obtaining a feedstock batch of coal material; and (d) processing a feedstock batch of coal material to obtain the controlled batch of coal material having the at least one specified physical and/or chemical parameter in the specified range thereof. In a further step, the controlled batch of coal material can be activated.
    Type: Application
    Filed: September 14, 2012
    Publication date: May 30, 2013
    Applicant: Minus 100 LLC
    Inventors: Kevin C. Kerns, James R. Pagnotti
  • Patent number: 8449632
    Abstract: The present disclosure provides methods and systems for coal liquefaction using a sewage material. A method of obtaining a de-ashed coal extract includes exposing a coal to a sewage material in the presence of a coal-derived solvent to form a slurry, elevating the temperature of the slurry to facilitate liquefying the coal and liberating a volatile matter, and separating the insoluble components from the slurry to obtain a de-ashed coal extract, wherein the coal extract is suitable for downstream processing.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: May 28, 2013
    Assignee: West Virginia University
    Inventor: Alfred H. Stiller