Treating Fuel Constituent Or Combustion Product Patents (Class 110/342)
  • Patent number: 10946366
    Abstract: The present invention addresses the problem and purpose of providing a honeycomb structure that has a sufficiently high strength and is excellent in endurance, and a catalyst for cleaning an exhaust gas using the same that is excellent in resistance to sulfur oxide (SOX). The honeycomb structure of the present invention is one consists of a flat inorganic fiber sheet comprising an inorganic fiber sheet having supported thereon an inorganic binder and zeolite, and a corrugated inorganic fiber sheet comprising an inorganic fiber sheet having supported thereon the same inorganic binder and zeolite, which are alternately combined with each other, wherein it is characterized in that the zeolite has a particle diameter (i.e., a median particle diameter, D50) of from 0.5 to 10.0 ?m.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: March 16, 2021
    Assignee: Hitachi Zosen Corporation
    Inventors: Susumu Hikazudani, Emi Shono, Kana Shimizu
  • Patent number: 10843130
    Abstract: The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: November 24, 2020
    Assignee: ADA-ES, Inc.
    Inventors: Sharon Sjostrom, Connie Senior, Jon Lagarenne, Kenneth E. Baldrey, Ramon Bisque, Michael D. Durham, Nina Bergan French
  • Patent number: 10843131
    Abstract: The present invention relates to a system and method for desulfurization and denitrification integrated treatment and recycling of flue gas by using red mud, and belongs to the recycling and environmental protection technology field. The system includes a desulfurization spray tower, an ozone generator, a denitration spray tower, a slurry mixing tank, a slurry storage tank, a vacuum filter, an ammonia water neutralization tank, an aluminum hydroxide precipitation tank, an ammonia water tank, an aluminum hydroxide storage tank, a filter press, an ammonia distillation tower, a dephlegmator, a cooler, a concentrated ammonia water storage tank, a gypsum precipitation tank, and an anaerobic biochemical pool. In the present invention, red mud slurry is used for desulfurization and denitrification treatment of flue gas to remove SO2 and NO in the flue gas, so that SO2 and NO in the flue gas reach an emission standard.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: November 24, 2020
    Assignees: Kunming University of Science and Technology, Pingxiang Huaxing Environmental Protection Engineering Technology Co., Ltd.
    Inventors: Ping Ning, Liangtao Yin, Qiulin Zhang, Lijuan Jia, Zaifei Yin, Bo Li, Shaoming Li, Bin Li
  • Patent number: 10669154
    Abstract: Process for manufacturing a hydrogen-containing synthesis gas from a natural gas feedstock, comprising the conversion of said natural gas into a raw product gas and purification of said product gas, the process having a heat input provided by combustion of a fuel; said process comprises a step of conversion of a carbonaceous feedstock, and at least a portion of said fuel is a gaseous fuel obtained by said step of conversion of said carbonaceous feedstock.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: June 2, 2020
    Assignee: Casale SA
    Inventors: Raffaele Ostuni, Geoffrey Frederick Skinner, Ermanno Filippi
  • Patent number: 10584298
    Abstract: A method for manufacturing biomass based fuel configured to reduce chemical and/or mechanical effects of flue gas on heat transfer surfaces is described. The method comprises providing biomass and steam into a reactor; maintaining said biomass and said steam simultaneously in the reactor, in a pressure of at least 10 bar(a) and at a temperature from 180° C. to 250° C. for at least 2 minutes; and decreasing the pressure in the reactor and/or conveying biomass out of the reactor such that the pressure of the environment of the biomass decreases below 5 bar(a), to produce steam-exploded biomass. The method further comprises adding some combustion additive to the biomass and/or the steam-exploded biomass.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: March 10, 2020
    Assignee: Valmet Technologies Oy
    Inventor: Tero Joronen
  • Patent number: 10578299
    Abstract: A burner system includes at least one radiant heating tube (22) and a first regenerator (48) disposed at a first end (24) of the tube. A second regenerator (50) is disposed at a second end (26) of the radiant heating tube (22). The first regenerator (48) and the second regenerator (50) are connected to a valve system (54) having first and second operating states for alternately supplying the radiant heating tube (22) with combustion air via one regenerator (48, 50) and for discharging exhaust gases via the other regenerator (48, 50). At least one inner tube (34) is disposed inside and extending along the radiant heating tube (22) at least in sections. The inner tube (34) is connected to a fuel supply line (76) and has outlet openings (46) provided along the longitudinal extension of the inner tube (34).
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: March 3, 2020
    Assignee: WS-Wärmeprozesstechnik GmbH
    Inventors: Joachim Wünning, Joachim Wünning
  • Patent number: 10458650
    Abstract: A process for nitrification, in the heterogeneous phase, of the flue gases produced by a combustion furnace (1), in particular a furnace for incinerating waste or sludge from a municipal water or industrial water purification plant, according to which the fuel is introduced into a fluidized bed (B) or onto a grate, and combustion air (2) is injected into the furnace; a reducing agent (6) is injected into the fuel and/or into the combustion air, upstream of the combustion chamber (H), and is mixed homogenously with the fuel and/or the combustion air, in order to carry out a reducing treatment promoted by the bed (3) of ash or of solids present in the furnace.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: October 29, 2019
    Assignee: DEGREMONT
    Inventors: Pierre-Emmanuel Pardo, Ludovic Morice
  • Patent number: 10202558
    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: June 26, 2017
    Date of Patent: February 12, 2019
    Assignee: VRC Technology, LLC
    Inventors: Marcus A. Wiley, Matthew A. Cotton, Darlene K. Sherrod, Marcus K. Wiley, Timothy P. Lenneman, Thomas Kenyon Gale
  • Patent number: 10030204
    Abstract: The disclosure provides a metal ferrite oxygen carrier for the chemical looping combustion of solid carbonaceous fuels, such as coal, coke, coal and biomass char, and the like. The metal ferrite oxygen carrier comprises MFexOy, where MFexOy is a chemical composition with 1.5?x?2.5 and 3.5?y?4.5 and M is one of Ca, Ba, and combinations thereof. For example, MFexOy may be one of CaFe2O4, BaFe2O4, MgFe2O4. SrFe2O4 and combinations thereof. Mixing of the metal ferrite oxygen carrier and the solid carbonaceous fuel generates a product stream comprising at least 50 vol. % CO and H2. The MFexOy may be supported on an inert support. In an embodiment, the MFexOy comprises at least 30 wt. % of the metal ferrite oxygen carrier the inert support when present comprises from about 5 wt. % to about 60 wt. % of the metal ferrite oxygen carrier.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: July 24, 2018
    Assignee: U.S. Department of Energy
    Inventors: Ranjani V. Siriwardane, Yueying Fan
  • Patent number: 9951287
    Abstract: The present invention is directed to additives for coal-fired furnaces, particularly furnaces using a layer of slag to capture coal particles for combustion. The additive(s) include iron, mineralizer(s), handling aid(s), flow aid(s), and/or abrasive material(s). The iron and mineralizers can lower the melting temperature of ash in low-iron, high alkali coals, leading to improved furnace performance.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: April 24, 2018
    Assignee: ADA-ES, INC.
    Inventors: Stephen Allen Johnson, John Wurster, John Philip Comer
  • Patent number: 9874350
    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: April 7, 2014
    Date of Patent: January 23, 2018
    Assignee: The Babcock & Wilcox Company
    Inventors: Mandar R Gadgil, S. Behrooz Ghorishi, Donald P Tonn
  • Patent number: 9863632
    Abstract: There is provided a process for operating a coal-fired furnace to generate heat. The process has the steps of a) providing the coal to the furnace and b) combusting the coal in the presence of a first slag-reducing ingredient and a second slag-reducing ingredient in amounts effective to reduce slag formation in the furnace. The first slag-reducing ingredient and the second slag-reducing ingredient are different substances. The first slag-reducing ingredient is selected from the group consisting of magnesium carbonate, magnesium hydroxide, magnesium oxide, magnesium sulfate, and combinations thereof. The second slag-reducing ingredient is selected from the group consisting of copper acetate, copper nitrate, aluminum nitrate, aluminum oxide, aluminum hydroxide, and ammonium phosphate. There is also provided a method for reducing slag formation in a coal-fired furnace.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: January 9, 2018
    Assignee: Environmental Energy Services, Inc.
    Inventor: Mark Pastore
  • Patent number: 9688935
    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: January 30, 2015
    Date of Patent: June 27, 2017
    Assignee: VRC Technology, LLC
    Inventors: Marcus A. Wiley, Matthew A. Cotton, Darlene K. Sherrod, Marcus K. Wiley, Timothy P. Lenneman, Thomas Kenyon Gale
  • Patent number: 9541288
    Abstract: There is provided a process for operating a coal-fired furnace to generate heat. The process has the steps of a) providing the coal to the furnace and b) combusting the coal in the presence of a first slag-reducing ingredient and a second slag-reducing ingredient in amounts effective to reduce slag formation in the furnace. In one embodiment, the first slag-reducing ingredient is one or more oxygenated magnesium compounds and the second slag-reducing ingredient is selected from the group consisting of one or more oxygenated calcium compounds, one or more oxygenated silicon compounds, and combinations thereof. In another embodiment, the first slag-reducing ingredient is one or more oxygenated silicon compounds, and wherein the second slag-reducing ingredient is one or more oxygenated aluminum compounds. There are also provided methods for reducing slag formation in a coal-fired furnace. There are also provided methods for treating coal. There are also treated coals.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: January 10, 2017
    Assignee: Environmental Energy Services, Inc.
    Inventor: Mark Pastore
  • Patent number: 9470419
    Abstract: The invention relates to a combustion chamber for burning an air-fuel mixture, a gas mixture or a gas-liquid mixture, including an outer casing; a flame tube located inside the outer casing and provided with an inner space, whereby the outer casing and the flame tube form an annular channel therebetween, the flame tube including flow apertures which penetrate through its casing and interconnect the annular channel and the inner space of the flame tube; a cover part arranged in inlet ends of the outer casing and the flame tube and provided with flow apertures opening up into the annular channel; a combustion air inlet part which is arranged in an outer surface of the cover part and which is in connection with the flow apertures of the cover part; a fuel jet located in the cover part and extending inside the flame tube for feeding fuel into the flame tube.
    Type: Grant
    Filed: November 22, 2012
    Date of Patent: October 18, 2016
    Assignee: RMV TECH OY
    Inventor: Markus Viitamäki
  • Patent number: 9440190
    Abstract: Herein are described products and processes for the reduction of contaminants from flue gases. Product compositions can include an aluminosilicate; and a calcium compound selected from calcium oxide, calcium hydroxide, calcium carbonate, calcium halide, PRB coal fly ash, and a mixture thereof. Processes can include injecting a sorbent composition into a flue gas at a location where the flue gas has a temperature in a range of about 1700° C. to about 400° C., admixing the sorbent composition and a contaminant to form a eutectic composition; and collecting the eutectic composition at a temperature in a range of about 400° C. and about 50° C. Other product compositions can include a combination of anti-eutectic and non-eutectic materials.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: September 13, 2016
    Assignee: Novinda Corp.
    Inventor: Thomas K. Gale
  • Patent number: 9382133
    Abstract: An adsorbent composition for removing heavy metals from contaminated water is described. The composition comprises of a mixture of kaolin clay, cellulose powder, silica powder, magnesite powder, bentonite powder and water. The adsorbent is mixed with contaminated water and allowed to react. Once the reaction is finished a reduced contaminant containing water is gathered and reused.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: July 5, 2016
    Assignee: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY (KACST)
    Inventor: Saad A Al-Jlil
  • Patent number: 9315746
    Abstract: A gasification furnace for gasifying a biomass resource in a manner producing a low quantity of tar. The gasification furnace (10) is provided with a punching plate (11) partitioning the furnace interior into upper and lower spaces; a biomass resource supply port (10a) for supplying the biomass resource over the punching plate (11); a first oxidizer supply port (10c) and a second oxidizer supply port (10d) for supplying an oxidizer into the furnace; a first oxidizer supply path supplying the oxidizer from the first oxidizer supply port (10c) from above towards below the punching plate (11); a second oxidizer supply path distributing and supplying to a plurality of locations within a predetermined area in the vicinity of the punching plate (11) from the second oxidizer supply port (10d); and a dry distillation gas output (10b) for discharging dry distillation gas generated by the pyrolysis and partial oxidation of the biomass resource on the punching plate (11) to the outside.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: April 19, 2016
    Assignees: ZE Energy Inc.
    Inventor: Yasuharu Matsushita
  • Patent number: 9296127
    Abstract: A process for the recovery of a plastic product from ASR or ESR mixtures can include five or more process steps selected from DEXRT; XRF; size reduction; density separation; NIR sorting; Electrostatic separation; LD sorting; Wood removal; rubber removal; metal removal; and glass removal.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: March 29, 2016
    Assignee: MBA Polymers, Inc.
    Inventors: Brian L. Riise, Arthur Schwesig
  • Patent number: 9206364
    Abstract: A gasification system method and apparatus to convert a feed stream containing at least some organic material into synthesis gas having a first region, a second region, a gas solid separator, and a means for controlling the flow of material from the first region to the second region. The feed stream is introduced into the system, and the feed stream is partially oxidized in the first region thereby creating a solid material and a gas material. The method further includes the steps of separating at least a portion of the solid material from the gas material with the gas solid separator, controlling the flow of the solid material into the second region from the first region, and heating the solid material in the second region with an electrical means.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: December 8, 2015
    Assignee: InEnTec Inc.
    Inventors: Jeffrey E. Surma, James A. Batdorf
  • Patent number: 9181503
    Abstract: A method of thermal treatment of material in a reactor with a high-temperature chamber and with a self-crucible wall, including at least determining liquidus temperature Tliq of ashes derived from the treated material, wherein the operating temperature of the reactor Tfonc in its steady state is then chosen such that Tfonc>Tliq.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: November 10, 2015
    Assignee: Commissariat à l'énergie atomique et aux ènergies alternatives
    Inventor: Jean-Marie Seiler
  • Patent number: 9140145
    Abstract: A system including a vessel including a heat source and a flue; a turbine; a condenser; a fluid conduit circuit disposed between the vessel, the turbine and the condenser; and a diverter coupled to the flue to direct a portion of an exhaust from the flue to contact with a cooling medium for the condenser water. A method including diverting a portion of exhaust from a flue of a vessel; modifying the pH of a cooling medium for a condenser with the portion of exhaust; and condensing heated fluid from the vessel with the pH modified cooling medium.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: September 22, 2015
    Assignee: Sandia Corporation
    Inventors: Patrick V. Brady, James L. Krumhansl
  • Publication number: 20150122161
    Abstract: The method further includes heating at least a portion of the inorganic compound-containing material and clay, such that at least a portion of the clay is at least partially calcined, and the at least partially calcined clay and functional mineral adsorb at least a portion of the inorganic volatile compounds present in the furnace and react with the ash produced during fuel combustion increasing its refractoriness. The method further includes removing at least a portion of the at least partially calcined clay and adsorbed inorganic compounds from the furnace.
    Type: Application
    Filed: December 21, 2012
    Publication date: May 7, 2015
    Applicant: Kentucky-Tennessee Clay Co.
    Inventors: Thomas Landon, James David Osby, Christian Ravagnani, Murielle Perronnet
  • Publication number: 20150107498
    Abstract: Disclosed is a process for controlling injection of magnesium oxide (or precursor) for reducing the concentration of sulfur trioxide in combustion gases from a combustor burning vanadium and sulfur-containing fuel while operating the boiler with enhanced efficiency. In-fuel introduction is combined with mid-temperature introduction, where both can be operated effectively, are found to be of primary importance. When in-fuel introduction will not be effective due to selectivity problems, feed can be shifted to a high-temperature zone. Where the high- or mid-temperature zone cannot be fully utilized due to obstructions for injection or insufficient soot blowers to address fouling of that zone or boiler operational changes to integrate the magnesium oxide injection is insufficient, an entire or a portion of feed can be shifted to the low-temperature zones.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 23, 2015
    Applicant: FUEL TECH, INC.
    Inventors: William H. Sun, Fabian Johan Solberg, Gerry Carl Snow, Steven William Cottingham, Vasudeo Shashikant Gavaskar
  • Publication number: 20150096480
    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: Application
    Filed: December 9, 2014
    Publication date: April 9, 2015
    Inventor: Douglas C. Comrie
  • Patent number: 8974225
    Abstract: A combustion process wherein a comburent, a fuel and the following components are fed: i) component B) sulphur or compounds containing sulphur in an amount to have a molar ration B1/C1?0.
    Type: Grant
    Filed: November 27, 2008
    Date of Patent: March 10, 2015
    Assignee: ITEA S.p.A.
    Inventors: Massimo Malavasi, Grazia Di Salvia, Edoardo Rossetti
  • Publication number: 20150059625
    Abstract: Low emission fuel pellets are formed from fuel sources such as non-recyclable paper and plastic materials by combining sorbent(s) to the interior of the pellet as it is being formed or coating the pellet with sorbent(s) after it has been formed. The sorbent compound is a metal compound preferably formed from an alkaline or alkali earth metal or copper which will react with any acid gases and heavy metals formed during the burning of the pellets to form corresponding stable metal salts, which will remain in the ash.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 5, 2015
    Inventors: Joe Harrell, Sumana Keener, Timothy Clark Keener
  • Publication number: 20150053123
    Abstract: The present invention is directed to additives for coal-fired furnaces, particularly furnaces using a layer of slag to capture coal particles for combustion. The additive(s) include iron, mineralizer(s), handling aid(s), flow aid(s), and/or abrasive material(s). The iron and mineralizers can lower the melting temperature of ash in low-iron, high alkali coals, leading to improved furnace performance.
    Type: Application
    Filed: November 5, 2014
    Publication date: February 26, 2015
    Inventors: Stephen Allen Johnson, John Wurster, John Philip Comer
  • Patent number: 8960107
    Abstract: An apparatus for processing fly ash comprising a heated refractory-lined vessel having a series of spaced angled rows of swirl-inducing nozzles which cause cyclonic and/or turbulent air flow of the fly ash when introduced in the vessel, thus increasing the residence time of airborne particles. Also disclosed is a method of fly ash beneficiation using the apparatus.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: February 24, 2015
    Assignee: The SEFA Group Inc.
    Inventors: Jimmy Clements Knowles, Richard F. Storm
  • Publication number: 20150034530
    Abstract: Described herein is a process that employs heat, derived from the combustion of product cleaning streams, such as waste streams, in a solvent-based extraction process. Solvent extraction of bitumen generally involves combining solvent with a bituminous feed to produce a cleaned bitumen product. Solvent is recovered, for example by utilizing heat to cause evaporation, and recovered solvent may be re-used. In an exemplary embodiment, hot flue gas from waste stream combustion may provide the heat to evaporate the solvent. Product cleaning waste streams may be ones produced from the trim cleaning of solvent extracted bitumen or from treatment of bitumen froth produced in a water-based extraction process. The heat generated can contribute to the energy requirements of the overall solvent extraction of bitumen.
    Type: Application
    Filed: October 9, 2012
    Publication date: February 5, 2015
    Inventors: Brian C. Speirs, Fritz Pierre, JR., Payman Esmaeili, David C. Rennard, Justin D. Pace
  • 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: 8919266
    Abstract: The present invention is directed to additives for coal-fired furnaces, particularly furnaces using a layer of slag to capture coal particles for combustion. The additive(s) include iron, mineralizer(s), handling aid(s), flow aid(s), and/or abrasive material(s). The iron and mineralizers can lower the melting temperature of ash in low-iron, high alkali coals, leading to improved furnace performance.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: December 30, 2014
    Assignee: ADA-ES, Inc.
    Inventors: Stephen Allen Johnson, John Wurster, John Philip Comer
  • Patent number: 8915199
    Abstract: Described is an integrated process of cogasifying an engineered fuel, formulated to be suitable for working under reducing environment, with coal and cofiring another engineered fuel, formulated to be suitable for working under oxidizing environment, with coal to produce electric power.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: December 23, 2014
    Assignee: Accordant Energy, LLC
    Inventors: James W. Bohlig, Dingrong Bai
  • Publication number: 20140331905
    Abstract: The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.
    Type: Application
    Filed: July 23, 2014
    Publication date: November 13, 2014
    Applicant: ADA-ES, INC.
    Inventors: Sharon Sjostrom, Connie Senior, Jon Lagarenne
  • Patent number: 8869420
    Abstract: This invention presents a versatile and continuous drying technology that utilizes controlled heat combined with forced air supply for drying a feedstock. The dryer virtually divided top-down into different zones, each having definite heated air distribution rate to secure desired condition for drying of the feedstock. The heat source of the dryer is waste heat, either provided by the feedstock itself through exothermic heat generated by the feedstock or reclaimed waste heat or solar heat. The discharge system of the dryer is a fail-safe discharge system, which ensures equal residence time for the feedstock through all the zones.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: October 28, 2014
    Inventor: Mousa Mohammad Nazhad
  • Publication number: 20140299028
    Abstract: Powder components containing calcium, alumina, silica, iron, magnesium, and a halogen sorbent are used in combination during coal combustion to produce environmental benefits. Sorbents are added to the coal ahead of combustion and/or are added into the flame or downstream of the flame. The alkalinity and chlorine of the powder is minimized in order to mitigate unwanted fouling, especially when used with sub-bituminous and lignite coals.
    Type: Application
    Filed: March 14, 2014
    Publication date: October 9, 2014
    Inventors: George M. Kotch, Murray Abbott, Sally Batanian
  • Publication number: 20140245936
    Abstract: Methods and systems for reducing mercury emissions are provided herein. The methods, generally, include the steps of burning a heavy metal containing fuel source and introducing sorbent materials and introducing one or more halogen compounds into the combustion chamber and/or exhaust stream to remove the heavy metal.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 4, 2014
    Applicant: CALGON CARBON CORPORATION
    Inventors: Nicholas R. POLLACK, Richard A. HAYDEN
  • Patent number: 8812162
    Abstract: An intelligently controlled catalytic converter automatically monitors various operating parameters, such as water jacket temperature, catalytic input temperature, catalytic converter output temperature, oxygen level, ambient temperature, ambient humidity and/or ambient barometric air pressure, of a biofuel-fired device and automatically controls dampers, blowers and electric heaters in the device.
    Type: Grant
    Filed: November 5, 2011
    Date of Patent: August 19, 2014
    Assignee: ClearStak LLC
    Inventors: John Schneider, Matt Fraga, Eric Dithrich, Jeffrey R. Hallowell
  • Patent number: 8807055
    Abstract: A process for capturing undesirable combustion products produced in a high temperature combustion system in which a carbonaceous fuel is utilized. Very finely sized particles of alkaline earth carbonates or hydroxides, with or without added ground ash, are provided in slurry form and are injected into the high temperature zone of a furnace. The particles flash calcine to provide substantially unagglomerated particles having a particle size of less than about 0.5 microns to capture and neutralize SOx, NOx, and toxic metals present in the combustion products.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: August 19, 2014
    Assignee: Clearchem Development, LLC
    Inventor: Jerrold E. Radway
  • Publication number: 20140224158
    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: Application
    Filed: April 16, 2014
    Publication date: August 14, 2014
    Applicant: NOx ll, Ltd.
    Inventor: Douglas C. Comrie
  • Publication number: 20140223882
    Abstract: A system includes a feed preparation system, with a fluid injection system configured to inject a fluid into a feed stream to generate a feed-fluid mixture. The feed stream includes a first solid, a second solid, and a gas. The feed preparation system also includes a cyclone configured to separate the feed-fluid mixture into a first stream that includes the first solid and the gas, and a second stream that includes the second solid and the fluid.
    Type: Application
    Filed: February 11, 2013
    Publication date: August 14, 2014
    Applicant: General Electric Company
    Inventors: Vijayalakshmi Shah, Sudharsanam Krishnamachari, Annavarapu Vijay Bharat Sastri, Ankur Verma
  • Publication number: 20140216309
    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: Application
    Filed: April 7, 2014
    Publication date: August 7, 2014
    Applicant: Babcock & Wilcox Power Generation Group, Inc.
    Inventors: Mandar R. GADGIL, S. Behrooz GHORISHI, Donald P. TONN
  • Publication number: 20140158029
    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: Application
    Filed: June 25, 2013
    Publication date: June 12, 2014
    Inventors: Randall P. Moore, Kevin Jackson, Stephen Baloga, Bobby I.T. Chen, Berani A.C Halley, John Edel
  • Patent number: 8739709
    Abstract: A combined treatment process of domestic garbage and sewage, comprising the following steps: {circle around (1)} sorting iron out of the domestic garbage; {circle around (2)} crushing the domestic garbage in which the iron has been removed; {circle around (3)} feeding the crushed domestic garbage into a sewage treatment tank, adding water and blowing air into the sewage treatment tank, where the domestic garbage is divided into floating substances, suspended substances, and settled substances; {circle around (4)} salvaging, dehydrating and drying the floating substances and then combusting them as fuel; {circle around (5)} collecting, filtering and drying the settled substances, wherein the settled substances having a calorific value of more than 4180 kJ/kg are burnt as fuel, the burnt substances and the settled substances having a calorific value of less than 4180 kJ/kg are used to replace clay material in a cement plant or used for making bricks; {circle around (6)} adding a flocculant into the sewage in wh
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: June 3, 2014
    Assignee: Hebei Building Materials Industry Design and Research Institute
    Inventor: Ying Chen
  • Publication number: 20140141380
    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: Application
    Filed: January 24, 2014
    Publication date: May 22, 2014
    Applicant: NOx II, Ltd.
    Inventor: Douglas C. Comrie
  • Patent number: 8695263
    Abstract: An explosive assembly adapted to destruction of artillery and other large ordnance shells; said explosive assembly comprising a pair of hollow half shells; each of said half shells formed with an internal cavity conforming to at least a portion of external surfaces of an ordnance shell to be destroyed.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: April 15, 2014
    Assignee: Applied Explosives Technology Pty Limited
    Inventor: Christopher Charles John Murray
  • Publication number: 20140093828
    Abstract: A boiler system includes an arrangement for drying fuel material to be combusted in the boiler system. A combustion chamber combusts fuel material, and generates ash and flue gases. An ash removal conduit connected to the combustion chamber leads ash out of the combustion chamber. A flue gas conduit connected to the combustion chamber leads Hue gases out of the combustion chamber. A flue gas heat recovery system, arranged to the flue gas conduit, recovers heat from the flue gases. A fuel dryer, provided with a first heat transfer device, transfers heat into the fuel to be dried. A second heat transfer device is arranged in connection with the flue gas conduit downstream of the flue gas heat recovery system. A third heat transfer device is arranged in connection with the ash removal conduit and a fourth heat transfer device is arranged in heat transfer connection with the fuel dryer.
    Type: Application
    Filed: April 18, 2012
    Publication date: April 3, 2014
    Inventors: Pertti Kinnunen, Timo Jäntti, Juha Räsänen, Juha Palonen
  • Publication number: 20140091258
    Abstract: The present invention relates generally to processes for preparing agglomerated particulate low-rank coal feedstocks of a particle size suitable for reaction in a fluidized-bed reactor and certain other gasification reactors and, in particular, for coal gasification and combustion applications. The present invention also relates to integrated coal gasification and combustion processes including preparing and utilizing such agglomerated particulate low-rank coal feedstocks.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 3, 2014
    Applicant: GreatPoint Energy, Inc.
    Inventors: Earl T. Robinson, Kenneth P. Keckler, Pattabhi K. Raman, Avinash Sirdeshpande
  • Publication number: 20140090584
    Abstract: The present invention relates generally to processes for preparing an inorganic sodium and/or chlorine contaminated low-rank coal feedstock for combustion in a fluidized fuel combustor to generate steam and, desirably, co-generate electricity.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 3, 2014
    Applicant: GreatPoint Energy, Inc.
    Inventors: Avinash Sirdeshpande, Kenneth P. Keckler, Earl T. Robinson, Pattabhi K. Raman