Feeding Flame Modifying Additive Patents (Class 431/4)
  • Patent number: 9879196
    Abstract: This invention generally refers to a new generation of fuel additives which can provide catalytic action to improve the combustion process of fossil fuels and to a catalyst among others containing an iron compound combined with an over-based magnesium compound with molecular size particles inside the combustion chamber. Such fuel additive catalysts are particularly useful for fuel oil combustion, natural gas combustion, stationary gas turbines, natural gas-fired reciprocating engines, diesel engines, gasoline engines and all stationary dual-fuel engines.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: January 30, 2018
    Inventors: Bruce Briant Parson, Walter R. May
  • Patent number: 9726375
    Abstract: The present disclosure relates to a boiler system that includes an oxyfuel boiler in which a stream of oxygen and a fuel are combusted to generate a stream of flue gas. A flue gas condenser condenses the cleaned flue gas. A flue gas compression unit produces a stream of pressurized carbon dioxide rich flue gas. A pressure control system measures and controls the pressure after the flue gas conditioning system to a predetermined set value. A flow control system measures and controls the flow after the flue gas compression unit to a predetermined set value. The present disclosure further relates to a method of operating such a boiler system for an oxy-fuel process as well as to a power plant comprising such a system.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: August 8, 2017
    Assignee: General Electric Technology GmbH
    Inventor: Olaf Stallmann
  • Patent number: 9328660
    Abstract: Described herein are embodiments of systems and methods for oxidizing gases. In some embodiments, a reaction chamber is configured to receive a fuel gas and maintain the gas at a temperature within the reaction chamber that is above an autoignition temperature of the gas. The reaction chamber may also be configured to maintain a reaction temperature within the reaction chamber below a flameout temperature. In some embodiments, heat and product gases from the oxidation process can be used, for example, to drive a turbine, reciprocating engine, and injected back into the reaction chamber.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: May 3, 2016
    Assignee: ENER-CORE POWER, INC.
    Inventor: Boris A. Maslov
  • Patent number: 9115545
    Abstract: A machine for the drilling of the ground includes a guide tower (2) along which slides a group (3) for the handling of a battery of drilling rods (5) which moves along guides (21) of the tower. The group includes a sleeve (31) which gives rotation to a tube (4) to the lower part of which can be constrained at least a drilling rod (5) with a digging tool (6) or directly a digging tool (6).
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: August 25, 2015
    Assignee: SOILMEC S.P.A.
    Inventor: Ezio Biserna
  • Patent number: 9109179
    Abstract: The present invention provides a stable fuel composition that can be used as a drop-in replacement for number 2 fuel oil without requiring infrastructure changes. The fuel comprises a continuous phase of mostly biofuel, an aqueous disperse phase, and at least one emulsifier. The continuous phase contains about 50 wt % to about 95 wt % of at least one liquid vegetable or liquid animal oil/fat or mixtures thereof; about 1 wt % to about 20 wt % of a renewable or fossil fuel derived thinning solvent or mixtures thereof, with or without 1 wt % to about 25 wt % of a C1-C4 monohydric alcohols, and with or without about 1 wt % to about 30 wt % of petroleum middle distillate. The aqueous phase contains about 1 wt % to about 50 wt % of deionized/purified water, with or without 1 wt % to about 25 wt % of a C1-C4 monohydric alcohols.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 18, 2015
    Assignee: Broadleaf Energy, LLC
    Inventors: Keith E. Cowin, Robert H. Bullard, Howard W. Bowman, III
  • Patent number: 8979525
    Abstract: The invention relates to a streamlined body for influencing the flow dynamics of a fluid, wherein the streamlined body at least partly corresponds to a rotationally symmetrical airfoil. A streamlined body of this kind can be used in a number of ways, for example as an impact member, as a flow regulator or as a heat exchanger. It also evens out and accelerates flows. It is used to particular advantage in a mixing and reaction chamber for burning fuels.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: March 17, 2015
    Assignee: Brambel Trading Internacional LDS
    Inventors: Franz Josef Staffler, Vincenzo Branzi
  • 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
  • Patent number: 8926317
    Abstract: Method of controlling the operation of a combustion device to provide safe and reliable operation while reducing NOx emission that includes providing a flow of fuel and diluent at a determined volume ratio to a flame in the combustion device; providing a flame stability sensor to generate a measurement of a characteristic of the flame, providing a flow measurement for each of the fuel and diluent, and controlling the determined volume ratio of fuel:diluent using the measurement from the flame stability sensor and/or flow measurements. A combustion system incorporating this method also is included.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: January 6, 2015
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: John T. Farrell, San Chhotray, Gary T. Dobbs, Manuel S. Alvarez, Patrick D. Schweitzer
  • Patent number: 8899969
    Abstract: A method and apparatus for combustion in which a pressurized preheated liquid fuel is atomized and a portion thereof flash vaporized, creating a mixture of fuel vapor and liquid droplets. The mixture is mixed with primary combustion oxidant, producing a fuel/primary oxidant mixture which is then injected into a primary combustion chamber in which the fuel/primary oxidant mixture is partially combusted, producing a secondary gaseous fuel containing hydrogen and carbon oxides. The secondary gaseous fuel is mixed with a secondary combustion oxidant and injected into the second combustion chamber wherein complete combustion of the secondary gaseous fuel is carried out. The resulting second stage flue gas containing very low amounts of NOx is then vented from the second combustion chamber.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: December 2, 2014
    Assignee: Gas Technology Institute
    Inventors: Vincent Gard, Dennis A. Chojnacki, Ioseph K. Rabovitser
  • Patent number: 8894409
    Abstract: The present invention provides, inter alia, a colored flame candle. This colored flame candle contains: a wick, a body of solid combustible material surrounding the wick except a tip portion of the wick, and a first encapsulated color agent adapted to color a flame of the candle, which color agent is dispersed within the solid combustible material and/or on the wick. Also provided is a wick for a colored flame candle.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: November 25, 2014
    Assignee: La Torre Innovation LLC
    Inventors: Justin S. La Torre, John D. Blizzard
  • Publication number: 20140315136
    Abstract: A method of inhibiting vanadic corrosion of a hot part of a gas turbine system is provided. The method includes introducing, in the combustor, a first oxide comprising magnesium oxide (MgO) and at least one second oxide from among Al2O3, Fe2O3, TiO2 and SiO2. A ratio “m” of a number of moles of MgO to a number of moles of V2O5 and a ratio “a” of a total number of moles of the at least one second oxide to the number of moles of V2O5 satisfy two conditions based on a firing temperature of the expansion turbine, an average density of one or more double oxides formed by a reaction between MgO and the at least one second oxide, and an average Knoop hardness of the one or more double oxides formed by the reaction between MgO and the at least one second oxide.
    Type: Application
    Filed: October 30, 2013
    Publication date: October 23, 2014
    Applicant: General Electric Company
    Inventor: Michel Marie Raymond Moliere
  • Patent number: 8845323
    Abstract: The invention comprises a method and apparatus for burning combustible fluids, such as biofuel byproducts and feedstocks, which are difficult to burn in a stable and clean manner. The method includes preheating the combustion zone prior to initiating flow of the combustible fluid and maintaining a minimum oxygen concentration in the oxidant gas.
    Type: Grant
    Filed: March 2, 2008
    Date of Patent: September 30, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Leighta M. Johnson, Matthew J. Watson, Aleksandar G. Slavejkov
  • Patent number: 8747101
    Abstract: The present invention provides a burner design and method for a high velocity oxygen fuel (HVOF) liquid fuel gun that generates turbulent atomization and uses one or more jets as an injection method for liquid fuel and oxygen to improve the combustion inside the combustion chamber. The burner uses preheated oxygen and preheated fuel to improve vaporization prior to combustion of the fuel.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: June 10, 2014
    Assignee: Sulzer Metco (US) Inc.
    Inventors: William P. Rusch, Mark Spaulding, Martin Hacker
  • Publication number: 20140154633
    Abstract: The invention relates to a method for oxidising hydrogen, comprising mixing hydrogen, oxygen and at least one third component, and subsequently reacting hydrogen and oxygen. The invention is characterized in that the at least one third component is carbon dioxide, wherein the method further comprises the step of dividing at least part of said carbon dioxide into CO and 0 radical for controlling the reaction temperature. The invention further relates to a device for oxidising hydrogen gas.
    Type: Application
    Filed: March 5, 2012
    Publication date: June 5, 2014
    Inventor: René Albert Hendrik Bruins
  • 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
  • Publication number: 20140090617
    Abstract: A waste gas combustion method that includes providing a combustible fuel source, in which the combustible fuel source is composed of at least methane and siloxane gas. A sodium source or magnesium source is mixed with the combustible fuel source. Combustion of the siloxane gas of the combustible fuel source produces a silicon containing product. The sodium source or magnesium source reacts with the silicon containing product to provide a sodium containing glass or sodium containing silicate, or a magnesium containing silicate. By producing the sodium containing glass or sodium containing silicate, or the magnesium containing silicate, or magnesium source for precipitating particulate silica instead of hard coating, the method may reduce or eliminate the formation of silica deposits within the combustion chamber and the exhaust components of the internal combustion engine.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 3, 2014
    Applicant: UT-BATTELLE, LLC
    Inventor: Theodore M. Besmann
  • 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: 8567214
    Abstract: The present invention relates to a method for producing a glass body containing: hydrolyzing a silicon compound and a compound containing a metal serving as a dopant, in a flame projected from a burner to form glass fine particles; and depositing and growing the formed glass fine particles on a base material, in which a raw material mixed gas containing a gas of the silicon compound, a gas of the compound containing a metal serving as a dopant, and either one of a combustible gas and a combustion supporting gas is fed into a central nozzle (A) positioning in the center of the burner; the other gas of the combustible gas and the combustion supporting gas is fed into a nozzle (B) different from the central nozzle (A) of the burner; a combustible gas or a combustion supporting gas is arbitrarily fed into a nozzle different from the nozzles (A) and (B); and a flow rate of the raw material mixed gas is 50% or more and not more than 90% of the largest flow rate among flow rate(s) of the combustible gas(ses) and the
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: October 29, 2013
    Assignee: Asahi Glass Company, Limited
    Inventors: Junko Miyasaka, Akio Koike, Tomonori Ogawa, Masahiro Kawagishi
  • Publication number: 20130276682
    Abstract: The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.
    Type: Application
    Filed: June 18, 2013
    Publication date: October 24, 2013
    Inventors: Michael D. Durham, Sharon Sjostrom, Kenneth E. Baldrey
  • Publication number: 20130266902
    Abstract: Clean combustion and equilibration equipment and methods are provided to progressively deliver, combust and equilibrate mixture of fuel, oxidant and aqueous diluent in a plurality of combustion regions and in one or more equilibration regions to further progress oxidation of products of incomplete combustion, in a manner that sustains combustion while controlling temperatures and residence times sufficiently to reduce CO and NOx emissions to below 25 ppmvd, and preferably to below 3 ppmvd at 15% O2.
    Type: Application
    Filed: May 31, 2013
    Publication date: October 10, 2013
    Inventors: Paul Andrew Campbell, David L. Hagen
  • Publication number: 20130260322
    Abstract: The invention relates to methods of combusting coal containing fuel streams where a coal additive composition is used to improve the combustion of the coal. The invention also relates to the additive composition used in the described methods, and the use of the additive composition as a coal combustion improver.
    Type: Application
    Filed: March 19, 2013
    Publication date: October 3, 2013
    Applicant: The Lubrizol Corporation
    Inventor: James H. Bush
  • Patent number: 8529246
    Abstract: Disclosed is a device and a method for maintaining and operating a flame. The device has a burner, a burner attachment having an outlet geometry, wherein on a side of the burner attachment facing away from the burner, an anode is provided on one side of the outlet geometry of the burner attachment. A dielectric is provided on the other side of the outlet geometry, wherein a cathode is located in the dielectric. The device and method: do not require continuous flame monitoring; positively influence the deposition behavior of layer-forming components of the fuel gas flame; and reduce the thermal impact of the burner and the operating costs thereof.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: September 10, 2013
    Assignee: Innovent E.V. Technologieentwicklung
    Inventors: Bernd Gruenler, Jens Ploetner, Hans-Juergen Tiller, Christian Tiller
  • Publication number: 20130230810
    Abstract: An inertial electrode launcher may be configured to project charged particles or a voltage comprising an inertial electrode proximate a flame or combustion gas produced by the flame.
    Type: Application
    Filed: December 30, 2012
    Publication date: September 5, 2013
  • Publication number: 20130230811
    Abstract: A combustion system includes a subsystem for electrically biasing or charging a flame and a virtual electrode launcher configured to launch a virtual electrode in proximity to the flame or combustion gas produced by the flame.
    Type: Application
    Filed: December 31, 2012
    Publication date: September 5, 2013
  • Publication number: 20130213282
    Abstract: A method of operating a thermal installation other than a gas turbine and use of such a method for inhibiting vanadic corrosion is disclosed herein. Embodiments of the invention relate to a method of operating a thermal installation comprising a combustion chamber fed with a fuel contaminated with vanadium, with sulfur and possibly with sodium. The combustion chamber is also fed with boron and with magnesium, in quantities such that the magnesium molar ratio m=MgO/V2O5 and the boron molar ratio b=B2O3/V2O5 satisfy the conditions (i) m?2+b; (ii) m?3+2b; (iii) b?0.5 and (iv) b?2, so that the combustion products comprise magnesium vanadate, mixed magnesium boron oxide and possibly sodium borate.
    Type: Application
    Filed: October 4, 2011
    Publication date: August 22, 2013
    Inventors: Donald A Meskers, JR., Michel Moliere, JeanLuc Buet
  • Patent number: 8506288
    Abstract: A more complete combustion and a decrease in particulate emissions in the burning of a heavy fuel oil in an industrial boiler or similar combustion device is obtained by first heating the oil to a temperature sufficient to significantly lower its viscosity and continuously mixing a fuel additive containing a solution of a high molecular weight, substantially linear, viscoelastic polymer to the heated oil flowing to the combustion device by mechanically stirring the oil and additive at conditions that do not cause degradation of the viscoelastic polymer through rupture and breakage of polymer molecules.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: August 13, 2013
    Inventors: Shaul S. Epelbaum, Jerry C. Trippe
  • Publication number: 20130199426
    Abstract: The invention provides a method of increasing the efficiency of a combustion process by adding bentonite to the flame, fireball or burner region combustion zone of the combustion process. Also provided is a combustion chamber that includes a bentonite feed system and a fuel additive composition of a bentonite such as sodium bentonite having a particle size range that may be employed in the method of the present invention.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 8, 2013
  • Publication number: 20130196271
    Abstract: A material is utilized with an electropositive metal. This can be used as post-oxyfuel process for oxyfuel power stations. Here, an energy circuit is realized by the material utilization. An electropositive metal, in particular lithium, serves as energy store and as central reaction product for the conversion of nitrogen and carbon dioxide into ammonia and methanol. The power station thus operates without CO2 emissions.
    Type: Application
    Filed: September 16, 2011
    Publication date: August 1, 2013
    Inventor: Günter Schmid
  • Publication number: 20130183628
    Abstract: An additive composition for a fuel comprises: (i) a metal compound selected from an iron compound, a manganese compound, a calcium compound, a cerium compound and mixtures thereof; (ii) an organic compound selected from a bicyclic monoterpene, substituted bicyclic monoterpene, adamantane, propylene carbonate and mixtures thereof; and (iii) a stabiliser. The additive composition allows fuels which are prone to separation, for example blended fuels or fuels having a high content of asphaltenes, to be used successfully.
    Type: Application
    Filed: November 14, 2012
    Publication date: July 18, 2013
    Inventors: Miltiades Papachristos, Ian Malcolm McRobbie, Deepak Kamran
  • Patent number: 8414288
    Abstract: A combustion system comprising a combustion chamber fed by fuel and oxidant delivery lines. The oxidant line has an oxidant tank pressurized by a compressor. The fuel delivery line has a fuel source and a fuel feed mechanism. An ignition device ignites the oxidant and fuel mixture in the combustion chamber. The coolant line is adapted to inject cooling fluid directly into the combustion chamber. An energy production device is disposed downstream a combustion chamber exhaust valve for converting energy from both exhausted combustion gases and coolant gases exhausted from the combustion chamber. In some embodiments the coolant is the oxidant, while in other embodiments the coolant is another fluid introduced from a separate coolant delivery line.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: April 9, 2013
    Inventor: Ilan Tzriker
  • Patent number: 8414290
    Abstract: A device for igniting combustible means, especially solid combustibles such as wood, charcoal, and similar. The device includes a pressurized receptacle that is filled with a combustible medium, a spring-loaded actuating valve which selectively opens and closes a discharge port of the receptacle, preferably by applying pressure with a fingertip, and a top part that is joined to the discharge port and has a tubular extension having an adequate length.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: April 9, 2013
    Inventor: Jonathan Gdynia
  • Publication number: 20130048539
    Abstract: Methods and systems for upgrading hydrocarbon are described. The system can include a combustor and a nozzle reactor. The combustor can be used to produce a motive fluid suitable for use in the nozzle reactor. The motive fluid produced by the combustor and a hydrocarbon stream can be injected into the nozzle reactor to upgrade the hydrocarbon material. The systems and methods can also be integrated with a steam assisted gravity drainage system.
    Type: Application
    Filed: August 23, 2012
    Publication date: February 28, 2013
    Inventors: Jose Armando Salazar, Mahendra Joshi, Thomas Edward Carter
  • Patent number: 8382468
    Abstract: Method for combusting a solid phase fuel, where the fuel is caused, by the help of a non-pneumatic feeding element (11), to be fed to an inlet opening (11a) in a burner device (10) having a first inlet (13a) for the oxidant through which an oxidant is caused to flow via a first supply conduit (13). The first inlet (13a) for oxidant is caused to be arranged in the form of an opening surrounding the inlet opening (11a), in that the oxidant is caused to flow out through the opening (13a) with a velocity of at least 100 m/s, through a burner pipe (16) and out through a burner orifice (17) to a combustion space (18), so that the oxidant by ejector action causes the fuel to be conveyed through the burner pipe (16) and out through the burner orifice (17).
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: February 26, 2013
    Assignee: AGA AB
    Inventor: Tomas Ekman
  • Publication number: 20130040250
    Abstract: A process for operating a utility boiler.
    Type: Application
    Filed: October 10, 2012
    Publication date: February 14, 2013
    Inventor: Thomas J. Wolferseder
  • Publication number: 20130025253
    Abstract: A method for reducing the amount of carbon monoxide and oxygen emissions in an oxyfuel hydrocarbon combustion system, comprising the steps of feeding defined amounts of hydrocarbon fuel and an oxidizer (e.g., air) to one or more combustors in the engine and igniting the mixture to form a first combustor exhaust stream; determining the amount of carbon monoxide present at the head end of a combustor in the initial combustor exhaust stream; identifying one or more target locations within the combustor at a point downstream from the first exhaust stream for injecting free hydrogen and a supplemental oxidizer; injecting hydrogen and the supplemental oxidizer into the combustor at specified downstream locations based on the amount of detected carbon monoxide; and injecting a diluent (e.g., CO2) into the combustor at a point further downstream in the combustor exhaust to control the exhaust temperature.
    Type: Application
    Filed: July 27, 2011
    Publication date: January 31, 2013
    Inventors: Rajani Kumar Akula, Predrag Popovic
  • Patent number: 8361397
    Abstract: A method of preparing an oxidant stream comprising: burning a combustion mixture comprising (a) one or more fuel composition and (b) oxidant comprising a first oxygen content of about 10 mole % or more and a first carbon dioxide (CO2) gas content of about 68 mole % or more on a dry basis, the burning producing a flue gas comprising CO2 gas, water vapor, and unreacted oxygen; separating from the flue gas a recycle stream; mixing at least a portion of the recycle stream having a first pressure with a sufficient amount of an oxygen stream having a second pressure which is sufficiently higher than the first pressure to entrain at least a portion of the recycle stream in the oxidant stream and to produce the oxidant stream having a second oxygen content of 10 mole % or more and a second CO2 gas content of about 68 mole % or more on a dry basis.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: January 29, 2013
    Assignee: Shell Oil Company
    Inventors: Walter Farman Farmayan, Abu Saeed Jamaluddin, Mahendra L Joshi, Scott Lee Wellington
  • Publication number: 20120308941
    Abstract: A method and a device are disclosed with which high-temperature combustion is attained using a fuel and an aqueous solution of an organic compound, e.g., an aqueous alcohol solution. In a combustion chamber, a fuel is sprayed and burned with a first burner to elevate the interior temperature of the combustion chamber (and/or a heat-resistant reflector disposed inside the combustion chamber) to a high temperature of 700° C. or above, and an aqueous solution of an organic compound (e.g., an alcohol-water mixture) is subsequently sprayed with a second burner into the high-temperature combustion gas obtained with the first burner, thereby causing microexplosion of water vaper and further elevating the interior temperature. As such, the fuels and organic compounds (e.g., Alcoholic aqueous solution) are fully burned, and thus the fuel cost can be reduced. Thus, high-temperature superheated steam containing a large amount of water vapor is yielded.
    Type: Application
    Filed: January 7, 2011
    Publication date: December 6, 2012
    Inventors: Saburo Ishiguro, Yukio Ishii, Kazutoshi Mitake
  • Patent number: 8298405
    Abstract: The invention provides a metal alloy fuel catalyst for decontaminating a hydrocarbon fuel, including diesel and bio-diesel fuel, of a bacterial contamination and for improving fuel combustion. The metal alloy fuel catalysts preferably includes about 70% Sn, about 22% Sb, about 4% Bi, and about 4% Pb, although other formulations are possible. The fuel catalyst can take the form of an in-line component in a fuel system or be coated within a fuel storage container.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: October 30, 2012
    Assignee: Advanced Power Systems International, Inc.
    Inventors: Alvin J. Berlin, Ralph H. Wright
  • Patent number: 8251694
    Abstract: A method for of reducing the acidity and lowering the acid dewpoint of flue gas, the method steps including partially combusting the fuel in a first stage to create a reducing environment; maintaining the reducing environment for a sufficient time period such that reducible acids are reduced to achieve a desirable acidity concentration in the flue gas; and combusting the remainder of the fuel and combustion intermediates in a second stage with oxidizing environment; thereby decreasing the acidity and lowering the acid dewpoint of the flue gas by reducing the acid concentration of the gas.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: August 28, 2012
    Assignee: Nalco Mobotec, Inc.
    Inventor: Brian S. Higgins
  • Patent number: 8236252
    Abstract: Collecting line for removing hot process gases conducted in process gas tubes from tubular reformers, wherein the collecting line has on the inside at least one insulation layer made of fire-resistant concrete or fire-resistant brick, and on the outside a wall made of a metallic outer tube, comprises a plurality of stubs via which the process gas tubes of the tubular furnace can be connected to the collecting line, wherein in the region of the stubs, the process gas tubes are at least in part conducted in guide tubes, and each gas outlet connected to the respective process gas tube projects into the collecting line, by means of which the process gas is introduced into the collecting line in correct functioning, and at least one gas outlet is constructed as a pipe bend.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: August 7, 2012
    Assignee: Uhde GmbH
    Inventors: Oliver Meissner, Silke Wodberg
  • Publication number: 20120195815
    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: February 1, 2012
    Publication date: August 2, 2012
    Inventors: Randall P. Moore, Kevin Jackson, Stephen Baloga, Berani A.C. Halley, Bobby I.T. Chen, John Edel
  • Patent number: 8215949
    Abstract: Systems for stabilizing combustion while minimizing NOx generation by using high-flame-speed additives to stabilize the flame front in combustors operating at relatively low temperatures and/or under oxygen constraints. The system is adapted for use in coal-fired boilers, oil-fired boilers, and gas turbine engines. The methods stabilize the flame front to permit stable combustion under an expanded range of part-load conditions. The system provides substantially complete combustion of coal in coal boilers resulting in ash saleable for use in concrete manufacturing.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: July 10, 2012
    Inventor: Majed Toqan
  • Publication number: 20120148961
    Abstract: A method and an arrangement for optimising combustion conditions in a fluidised-bed boiler, in which combustion gas is fed at two or more height levels, the first of which is a primary level (P) which is located at the height of a furnace bottom and the second is a secondary level (S) which is located above fuel feed height (F), above which secondary level (S) there can be still other combustion gas feed levels (T, . . . ). At least one combustion gas feed level (P, S, T, . . . ) is fed at different points of the furnace (11) in its horizontal direction with combustion gases having different oxygen contents such that zones of different oxygen content can be formed in the horizontal direction of the furnace (11).
    Type: Application
    Filed: August 9, 2010
    Publication date: June 14, 2012
    Applicant: METSO POWER OY
    Inventors: Mikko Varonen, Tero Luomaharju
  • Publication number: 20120100490
    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: January 4, 2012
    Publication date: April 26, 2012
    Inventor: Douglas C. Comrie
  • Patent number: 8137099
    Abstract: The invention relates to a method for calcination of a material in which said material is heated by contact with a heat source essentially generated by means of a flame produced with at least one flow of fuel and primary air and a flow of secondary air, the flame comprising a first combustion zone with a temperature below 1500° C. and a second combustion zone with a temperature above 1500° C., where at least one flow of at least one inert gas is injected into the flame at the beginning of the second combustion zone and/or at least one flow of oxygen or a gas enriched in oxygen is injected into the second combustion zone.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: March 20, 2012
    Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Erwin Penfornis, Maguelonne Hammel, Pascal Duperray, Xavier Paubel
  • Patent number: 8118589
    Abstract: A flame color-enhancing apparatus includes a hollow outer tubular member having a predetermined copper content, a predetermined inside diameter and surface, and a first predetermined length; and an internal tubular member frictionally disposed within the outer tubular member to a predetermined ratio of contact of the interior surface of the outer member to exterior surface of the internal tubular member. The internal tubular member contains a predetermined content of chlorine-based polymer and has a second predetermined length and an outside diameter substantially equal to the predetermined inside diameter.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: February 21, 2012
    Inventors: Sandra Haugen, Larry Dean Mason
  • Publication number: 20120006239
    Abstract: A process for operating a coal-fired utility boiler. The process has the steps of (a) providing coal and one or more additives in proximity to one or more burners in the boiler; (b) providing air to the boiler; and (c) burning the coal and the one or more additives in the boiler to generate heat and an exhaust gas. Also disclosed are a burner and a coal-fired boiler.
    Type: Application
    Filed: May 10, 2011
    Publication date: January 12, 2012
    Inventors: Richard A. Nowak, Pansilo Robert Santangeli
  • Publication number: 20120003593
    Abstract: A consumer appliance comprises a source of humidified hydrogen; and, a combustion zone in fluid flow communication with a source of oxygen and the source of humidified hydrogen. A method of producing a visible hydrogen flame comprising providing water with hydrogen gas is also provided.
    Type: Application
    Filed: August 10, 2007
    Publication date: January 5, 2012
    Applicant: G.B.D. CORP
    Inventor: Wayne Ernest Conrad
  • Patent number: 8079845
    Abstract: There is a process for operating a utility boiler. The process has the following steps: a) continuously adding one or more slag control agents, one or more oxygen-generating agents, and a fuel oil to a furnace of the utility boiler; b) providing air to the furnace; c) burning the fuel oil to generate heat and an exhaust gas; d) periodically or continuously varying the dosage rates of the one or more slag control agents and/or the one or more oxygen-generating agents to maintain to substantially maintain one or more emissions variables in the exhaust gas within pre-determined limits. There is also a method for reducing emissions from a utility boiler and a method for reducing slag deposits within a utility boiler.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: December 20, 2011
    Assignee: Environmental Energy Services, Inc.
    Inventors: Ken Nowak, Rick Nowak, Chuck Noeding, Mark Pastore
  • Publication number: 20110305999
    Abstract: The present disclosure relates to the modifier of combustion of solid, liquid and gaseous fuels, in particular wood, natural gas, coal, mazout and other hydrocarbons, in power boilers, in closed or open chambers, wherein it contains from 10 to 30 wt. % of water, from 20 to 80 wt. % of at least one aliphatic alcohol, from 5 to 15 wt. % of carbamide or its derivatives, and from 5 to 15 wt. % of monoacetylferrocene. Object of the disclosure is also a method of modifying process of combustion of the above-mentioned fuels and a use of the modifier of fuel combustion.
    Type: Application
    Filed: April 1, 2009
    Publication date: December 15, 2011
    Inventor: Marek Majcher