Exhaust Gas; E.g., Pollution Control, Etc. Patents (Class 110/345)
  • Patent number: 10357742
    Abstract: The present invention relates to a method for inhibiting the formation of dioxin-like compounds in solid waste incineration flue gases, belonging to the field of cleaning of solid waste incineration flue gases. In accordance with the present invention, when incineration flue gases cool down to 500˜450° C., the flue gases are introduced into an inhibition reactor where copper chlorides in flue gas particulates mix and react with inhibitors to convert into copper metaphosphate so as to inactivate the copper chlorides which can catalyze the formation of dioxin-like compounds and control dioxin-like compound pollutants in incineration flue gases at the source. Compared with the prior art, the invention can effectively control the main formation ways of dioxin-like compounds in solid waste incineration flue gases by optimizing inhibitors and reaction conditions.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: July 23, 2019
    Assignee: TONGJI UNIVERSITY
    Inventors: Pinjing He, Hua Zhang, Sijia Wang, Liming Shao, Fan Lyu
  • Patent number: 10309644
    Abstract: One embodiment relates to a burner, comprising a fuel pipe, a fuel nozzle, at least one ignition and/or heat source and a pipe which conducts an oxygen-containing gas and/or recirculated flue gas, wherein the at least one ignition and/or heat source is arranged in the burner interior and is in the form of or comprises an electric heating and/or ignition device via which, exclusively by conversion of electrical current into heat energy, the amount of heat energy required within the burner for the initiation and continuation of the initial pyrolysis and ignition is generated and/or provided in the burner interior. A stabilizing ring with toothed ring may be a constituent part of the electric heating and/or ignition device arranged in the mouth region of the fuel nozzle.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: June 4, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS EUROPE GMBH
    Inventors: Alfons Leisse, Sebastian Rehfeldt
  • Patent number: 10239054
    Abstract: A counter-current catalyst regenerator with at least two stages of counter-current contact along with a regenerator riser is proposed. Each stage may comprise a permeable barrier that allows upward passage of oxygen-containing gas and downward passage of coked catalyst into each stage, but inhibits upward movement of catalyst to mitigate back mixing and approximate true counter-current contact and efficient combustion of coke from catalyst. The regenerator riser may provide a passage to transport the catalyst and may serve as a secondary stage for coke combustion to provide the regenerated catalyst.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: March 26, 2019
    Assignee: UPO LLC
    Inventors: Lev Davydov, Michael S. Sandacz, Paolo Palmas, Zhihao Fei, Matthew Lippmann
  • Patent number: 10130930
    Abstract: The present invention relates to sorbents including carbon and nitrogen. In various embodiments, the sorbent can remove mercury from a mercury-containing gas that includes sulfur (VI) such as SO3 more efficiently than other sorbents. The sorbent can include a graphene edge comprising an active site for mercury oxidation and a nitrogen layer structure including cationic nitrogen atoms, neutral nitrogen atoms, or a combination thereof proximate the active site.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: November 20, 2018
    Assignee: Midwest Energy Emissions Corp
    Inventors: Edwin S. Olson, John Henry Pavlish
  • Patent number: 10132492
    Abstract: A system includes the HRSG having an economizer disposed along a fluid flow path, and a drum disposed along the fluid flow path downstream of the economizer. The HRSG also includes a drum level control module configured to modulate an amount of the fluid provided to the drum along the fluid flow path and a supplemental control module configured to control an amount of the fluid in a different manner than the drum level control module. The heat recovery steam generator also includes a drum level event controller configured to monitor a rate of change of a level of the fluid in the drum. If the rate of change is over a threshold value, a signal goes to the supplemental control. If the rate of change is less than or equal to the threshold value, the signal goes to the drum level control module.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: November 20, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Vijay Anand Raghavendran Nenmeni, Kelvin Rafael Estrada, Wulang Edwien Chriswindarto
  • Patent number: 10065151
    Abstract: A method for the partial removal of contaminants such as nitrogen oxides from a process gas stream is described. The process gas stream is separated into at least two process gas streams by means of a partition, baffle, damper or other device. Ozone is fed into contact with at least one of the separated process gas streams to oxidize the contaminants therein and the at least one of the process gas streams contacted by ozone is fed to a scrubber for removal of the oxidized contaminants from the gas streams. The separation is proportional to the percentage removal of contaminants desired.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: September 4, 2018
    Assignee: Linde Aktiengesellschaft
    Inventors: Ambrogio Gusberti, Frank R. Fitch, Heinz-Dieter Obermeyer
  • Patent number: 9982910
    Abstract: A system includes a tank containing a fluid to be heated; a U-shaped pipe disposed proximate a bottom of the tank, a majority of the extent of the U-shaped pipe being disposed within an interior of the tank; a catalyst unit embedded within the U-shaped pipe, the catalyst unit comprising a catalyst wrapped, natural gas filled, perforated pipe that is configured to enable a catalytic reaction on its exterior; a vent pipe attached to the U-bend pipe which allows air to circulate; and mechanical controls disposed proximate the U-shaped pipe configured to vary temperature output.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: May 29, 2018
    Assignee: QMAX CATALYTIC, LLC
    Inventors: Thomas William Perry, Christopher Michael Klein, Carson Hannah
  • Patent number: 9945558
    Abstract: A combined heat exchanger including a flue gas cooler heat-transfer unit supplied with cooling fluid by a supply pump and an upstream GGH heat-transfer unit for circulation of circulating fluid with a downstream GGH by a circulation pump is arranged at an outlet of a gas air heater for heat exchange of flue gas from a boiler body for oxyfuel combustion with recirculation flue gases. A low-low temperature ESP is arranged at an outlet of the combined heat exchanger. A heat-exchange-duty adjustment device is arranged to regulate heats exchanged in the heat-transfer units in the heat exchanger such that at least flue gas temperature at the inlet of the low-low temperature ESP is kept to an inlet set temperature.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: April 17, 2018
    Assignee: IHI CORPORATION
    Inventor: Terutoshi Uchida
  • Patent number: 9939153
    Abstract: A boiler system having a series of boilers. Each boiler includes a shell having an upstream end, a downstream end, and a hollow interior. The boilers also have an oxidizer inlet entering the hollow interior adjacent the upstream end of the shell and a fuel nozzle positioned adjacent the upstream end of the shell for introducing fuel into the hollow interior of the shell. Each boiler includes a flue duct connected to the shell adjacent the downstream end for transporting flue gas from the hollow interior. Oxygen is delivered to the oxidizer inlet of the first boiler in the series. Flue gas from the immediately preceding boiler in the series is delivered through the oxidizer inlet of each boiler subsequent to the first boiler in the series.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: April 10, 2018
    Assignee: Washington University
    Inventors: Richard L. Axelbaum, Benjamin M. Kumfer, Fei Xia, Akshay Gopan, Bhupesh Dhungel
  • Patent number: 9919270
    Abstract: A denitration device and a denitration method in which denitration is performed efficiently and in a stable manner in a lower-reaction-temperature region without using a catalyst. The denitration device is provided with a combustion chamber, a denitration agent feed means for feeding a denitration agent into the combustion chamber, an exhaust pipe, and an OH-radical-generating substance feed means for feeding an OH radical-generating substance into the exhaust pipe. The denitration agent feed means feeds a denitration agent into the exhaust gas of the combustion chamber to perform a first denitration reaction step, and the OH-radical-generating substance feed means feeds the OH-radical-generating substance into the exhaust gas in the exhaust pipe to perform a second denitration reaction step.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: March 20, 2018
    Assignees: GIFU UNIVERSITY, SAWAFUJI ELECTRIC CO., LTD., ACTREE CORPORATION
    Inventors: Shinji Kambara, Tomonori Miura, Tatsuya Ikeda, Sho Arai, Megumi Masui
  • Patent number: 9874113
    Abstract: A system for generating steam supplies of coal another material to one or more processing chambers. Each processing chamber includes a plasma arc torch that heats the material in the presence of water and a treatment gas at an extremely high temperature. A product gas stream is delivered from each processing chamber to a heat recovery steam generator (HRSG). Each HRSG generates steam that is used to drive a steam turbine. The processing chambers and HRSGs are fluidly connected so that the product gas streams moves from a processing chamber, to a HRSG, to another processing chamber, and then to another HRSG, etc. Within any of the HRSGs, or after the final HRSG, water in the product gas may condense to liquid water that may be redirected to any of the processing chambers. In addition, CO2 from the final HRSG may be redirected into any of the processing chambers to facilitate further reactions in the chambers.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: January 23, 2018
    Assignee: POWERDYNE, INC.
    Inventors: Geoffrey Hirson, Gus F. Shouse
  • Patent number: 9709449
    Abstract: An assessment system and method are described that capture indoor temperature measurements and corresponding outdoor temperature measurements in order to determine a thermal efficiency of a structure. The assessment system identifies quiescent periods and trims these periods to eliminate undesirable influences such as auxiliary heating or solar gain. The quiescent periods are then compared to outdoor temperature differences to determine the thermal efficiency of the structure. The system can model the structure's performance metrics, through inferred qualitative and quantitative characterizations including, but not limited to, the building's rate of temperature change as a function of internal and external temperatures, the building's heating, cooling, and other energy needs as they relate to the building envelope, appliances, and other products used at the site and occupant behavior.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: July 18, 2017
    Assignee: Vermont Energy Investment Corporation
    Inventors: Nicholas Cresswell Lange, Ethan Josiah Goldman, Gregory Josh Fanslow, Jacob Curtis Jurmain
  • Patent number: 9669355
    Abstract: The present invention relates to activated carbon sorbents including nitrogen. In various embodiments, the present invention provides an activated carbon sorbent including a halogen- or halide-promoted activated carbon, the activated carbon sorbent particles including nitrogen in a surface layer of the sorbent particles. In various embodiments, the present invention provides a method of reducing the pollutant content in a pollutant-containing gas using the activated carbon sorbent. In various embodiments, the activated carbon sorbent can remove mercury from a mercury-containing gas that includes sulfur(VI) such as SO3 more efficiently than other sorbents.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: June 6, 2017
    Assignee: Energy & Environmental Research Center Foundation
    Inventors: Edwin S. Olson, John Henry Pavlish
  • Patent number: 9643918
    Abstract: Disclosed is a calcination apparatus, including: a calcination tube having open ends at both terminals; a pair of hoods, each hood covering each open end of the calcination tube; and a pair of rings, each ring sealing a gap between the calcination tube and the hood, wherein the rings are directly or indirectly fixed on an outer surface of the calcination tube; a groove is provided along a circumferential direction of the ring at a contact surface side between the ring and the hood; a sealed chamber surrounded by the hood and the groove is formed; and both the calcination tube and the rings rotate in a circumferential direction of the calcination tube while keeping the hood in contact with both sides of the groove.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: May 9, 2017
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Eri Tateno, Masatoshi Kaneta, Toshihiko Fukuzono, Haruhiko Watanabe
  • Patent number: 9631809
    Abstract: A system for drying pulverized high moisture fuel for use in a selective catalytic reduction system equipped combustion system is provided. The combustion system includes a mill for pulverizing fuel, an air heater, two fuel gas streams at different temperatures, a booster air heater and a fuel duct for feeding dried pulverized fuel to a combustion furnace.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: April 25, 2017
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Scott L. Darling, Edward S. Saldon
  • Patent number: 9523500
    Abstract: A thermal afterburning system and a method for operating such a system are described, in which method or system a burner gas is fed in a conventional manner to a burner heating the combustion space of a combustion chamber, and exhaust air with a pollutant load is fed to the combustion space of the combustion chamber. The clean air produced inside the combustion space during the combustion processes is discharged. At the same time the carbon monoxide content of said air is measured. The supply of burner gas to the burner is regulated in such a manner that a predetermined target value for the carbon monoxide content is maintained. In this manner, the temperature in the combustion space is kept only sufficiently high as is required to achieve the desired purity of the clean gas given the respective pollutant load of the exhaust air.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: December 20, 2016
    Assignee: EISENMANN AG
    Inventor: Apostolos Katefidis
  • Patent number: 9486736
    Abstract: A gas cleaning system (8) for cleaning a carbon dioxide rich flue gas containing sulphur dioxide generated in a boiler (2) comprises a first gas cleaning device (10) being operative for removing at least 80% of the sulphur dioxide content of the flue gas generated in the boiler (2), thereby generating a partly cleaned carbon dioxide rich flue gas, and a second gas cleaning device (12), being separate from the first gas cleaning device (10) and being operative for receiving at least a portion of the partly cleaned carbon dioxide rich flue gas that passed through the first gas cleaning device (10). The second gas cleaning device (12) is operative for removing at least a portion of the water content of the partly cleaned carbon dioxide rich flue gas by means of cooling the partly cleaned carbon dioxide rich flue gas to condense water there from.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: November 8, 2016
    Assignee: General Electric Technology GmbH
    Inventors: Jörgen P. Grubbström, Wuyin Wang
  • Patent number: 9482127
    Abstract: A system and method for drying pulverized high moisture fuel for use in a selective catalytic reduction system equipped combustion system is provided. The combustion system includes a mill for pulverizing fuel, an air heater, a booster air heater and a fuel duct for feeding dried pulverized fuel to a combustion furnace.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: November 1, 2016
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Scott L. Darling, Edward S. Sadlon
  • Patent number: 9314740
    Abstract: Methane is removed from ventilation air by cycling metal or metal oxide particles in a chemical looping process in one or more reactors where the metal particles are alternately reduced and oxidized, and passing ventilation air through one or more of reactors to convert the air plus methane into reduced air, water and carbon dioxide. In one variation, a hydrogen generator and a regenerator are used to alternatively reduce and oxidize the particles such that ventilation air methane introduced into a combustor provided with hydrogen from the hydrogen generator can be processed in the regenerator to produce air, water and carbon dioxide. Other variations involve using three reactors in the chemical looping process, or an array of parallel inclined plates forming lamellas between upper and lower reactors to keep lighter particles in the upper oxidizer reactor and heavier particles in the lower reducer reactor.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: April 19, 2016
    Assignee: NEWCASTLE INNOVATION LIMITED
    Inventors: Behdad Moghtaderi, Elham Doroodchi
  • Patent number: 9249996
    Abstract: The invention relates to a method of conditioning a condensate generated in the compression section of a gas purification unit. The invention also relates to system for this method.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: February 2, 2016
    Assignee: ALSTOM Technology Ltd
    Inventors: Olaf Stallmann, Ulrich Rückert
  • Patent number: 9149755
    Abstract: A wet type dust collector for air purifying according to an embodiment of the present invention can efficiently cool polluted air and remove sludge because it is designed to be able to continuously cool polluted air from the outside with cooling water, which is cooled and circulated, and to remove sludge and foreign substances.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: October 6, 2015
    Inventor: Seong Hun Lee
  • Patent number: 9120045
    Abstract: A sinter plant gas cleaning system includes a fabric filter device for removing dust particles from a process gas drawn from a sinter strand of a sinter plant. A duct is adapted to allow the process gas drawn from the sinter strand to pass by the fabric filter device. A measurement device measures a concentration of organic compounds of the process gas drawn from the sinter strand. A control system receives a signal from the measurement device and controls the flow of process gas through the duct.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: September 1, 2015
    Assignee: ALSTOM Technology Ltd
    Inventors: Peter Wieslander, Lena Loren
  • Publication number: 20150136003
    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, are dried and milled to provide unagglomerated, sub-micron-sized particles that are injected along with pulverized coal into the high temperature combustion zone of a furnace. The particles capture and neutralize the gases that result in condensable acids, including SOx, NOx, HCL, and HF, as well as capturing toxic metals that are present in the combustion products, they mitigate ash fouling and slagging, and they facilitate economic heat exchange that permits fuel savings and recovery of water for use in other processes.
    Type: Application
    Filed: August 18, 2014
    Publication date: May 21, 2015
    Applicant: Clearchem Development, LLC
    Inventors: Jerrold E. Radway, James Smith
  • Patent number: 9017452
    Abstract: The present disclosure is directed to a dense-phase additive transportation system for additive injection into a contaminated gas stream.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: April 28, 2015
    Assignee: ADA-ES, Inc.
    Inventors: Ronald D. Hanson, Cameron E. Martin, Robert W. Wewer, Randall J. Boerema, Tyler J. Derritt, Nicole M. McCann
  • Patent number: 8980206
    Abstract: A method is illustrated and described for reducing unwanted substances by injecting a reactant into a flue gas of a steam generator. In order that the reactant can also be used in larger steam generators and/or combustion chambers, a method is proposed, in which the reactant is injected into the combustion chamber of the steam generator via a reactant opening of a multi-component nozzle, in which an enveloping medium is injected into the combustion chamber through at least one enveloping medium opening arranged outside the reactant opening, and in which the enveloping medium at least partly envelops the reactant in the combustion chamber and in this way at least partly shields the reactant from the flue gas.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: March 17, 2015
    Assignee: Babcock Borsig Steinmueller GmbH
    Inventors: Stefan Hamel, Christian Storm
  • 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: 8957276
    Abstract: An aspect of the present invention is a method of processing a waste material that contains mercury or a mercury compound, and chlorine or a mercury chloride, the method including a step of adding a chlorine scavenger to the waste material, and stowing the waste material in a treatment vessel; and a step of subjecting the waste material to a blasting treatment by fitting an explosive to the treatment vessel and detonating the explosive inside a pressure-proof container.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: February 17, 2015
    Assignees: National Institute of Advanced Industrial Science and Technology, Kobe Steel, Ltd.
    Inventors: Takehiro Matsunaga, Ken Okada, Miyako Akiyoshi, Shiyuu Usuba, Masaya Ueda, Koichi Hayashi, Kiyoshi Asahina
  • Publication number: 20150040806
    Abstract: A method for efficiently conveying impurities in a pressurized fluidized incinerator system is provided. Cleaning gas is supplied to an upper valve, and thereafter, the upper valve is driven so as to communicate an upper discharge device and a tank. The upper discharge device is driven so as to convey the impurities from the dust collector to the tank, and thereafter, the upper discharge device is stopped and the upper valve is driven so as not to communicate the upper discharge device and the tank. Thereafter, the supply of the cleaning gas to the upper valve is stopped.
    Type: Application
    Filed: March 22, 2013
    Publication date: February 12, 2015
    Applicant: TSUKISHIMA KIKAI CO., LTD.
    Inventors: Takamitsu Kanno, Kazuyoshi Terakoshi, Takafumi Yamamoto, Kunihiko Koga, Tomokazu Suyama, Isamu Orito
  • 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
  • Publication number: 20150013300
    Abstract: A boiler system having a series of boilers. Each boiler includes a shell having an upstream end, a downstream end, and a hollow interior. The boilers also have an oxidizer inlet entering the hollow interior adjacent the upstream end of the shell and a fuel nozzle positioned adjacent the upstream end of the shell for introducing fuel into the hollow interior of the shell. Each boiler includes a flue duct connected to the shell adjacent the downstream end for transporting flue gas from the hollow interior. Oxygen is delivered to the oxidizer inlet of the first boiler in the series. Flue gas from the immediately preceding boiler in the series is delivered through the oxidizer inlet of each boiler subsequent to the first boiler in the series.
    Type: Application
    Filed: June 3, 2014
    Publication date: January 15, 2015
    Applicant: Washington University
    Inventors: Richard L. Axelbaum, Benjamin M. Kumfer, Fei Xia, Akshay Gopan, Bhupesh Dhungel
  • Patent number: 8931278
    Abstract: A steam generation system delivers heats water and carbon dioxide at high temperatures in the presence of one or more plasma arc torches and converts the materials into hydrogen and carbon monoxide. The converted gas is delivered to a heat recovery steam generator (“HRSG”) to produce steam, which may be used to power a steam turbine. Depending on the amount of steam and/or power desired, the system may use a control system to vary the flow, temperature and pressure of the gas delivered to the HRSG. The control system may do this by bringing additional torches on-line or off-line in the processing chamber, by adding unheated gas directly from a supply source, shunting the gas from the HRSG, and varying the flow of water delivered to the HRSG.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: January 13, 2015
    Assignee: Powerdyne, Inc.
    Inventors: Geoffrey Hirson, Gus F. Shouse
  • Patent number: 8926734
    Abstract: An exemplary embodiment of the present invention provides an induced-draft injection system comprising an injection line in fluid communication with a duct under negative pressure, a particulate storage containing particulate, and a feeder receiving the particulate from the particulate storage and feeding the particulate to the injection line. The negative pressure in the duct supports the transportation of at least a portion of the particulate through the injection line and into the duct. Inside the duct, a binding portion of the particulate is bound to a portion of mercury in a flue gas passing through the duct, thus enabling a portion of the mercury to be filtered out of the flue gas.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: January 6, 2015
    Assignee: The Southern Company
    Inventor: Luke Reagan
  • Publication number: 20140373764
    Abstract: A method and apparatus for treatment of unburnts utilizing oxygen carrier particles, which may be CLOU particles, oxidized in an air reactor and transmitted to a post oxidation reactor as shown in FIG. 2. A flue gas stream containing unburnts is injected into post oxidation reactor wherein unburnts are oxidized by oxygen supplied by oxygen carriers. Reduced oxygen carriers are separated from post oxidation reactor and transmitted back to air reactor for re-oxidation. An embodiment may include a post oxidation chamber, which may be catalytic, receiving a portion of flue gas stream and oxygen from a flue gas stream of post oxidation reactor.
    Type: Application
    Filed: September 5, 2014
    Publication date: December 25, 2014
    Inventors: Marc AJHAR, Jörgen GRUBBSTRÖM, Corinne BEAL
  • Patent number: 8900354
    Abstract: A boosted no-lance injection system (BNLS) and methods of operating a combustion system to reduce acid gas or metal emissions in the flue gas is shown and described. In one embodiment, a BNLS includes an injection device, a high volumetric flow air mover, a transport air mover, a sorbent hopper and a mounting apparatus. In other embodiments, a method of operating a combustion system includes positioning the BNLS to inject into the ductwork, applying transport air and sorbent into the ductwork, and applying the high volumetric flow air into the ductwork. The result is methods and systems for reducing acid or metal emissions in the flue gas.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: December 2, 2014
    Assignee: The Power Industrial Group Ltd.
    Inventors: Lewis B. Benson, Brian S. Higgins
  • 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
  • Publication number: 20140318429
    Abstract: Heating devices and methods for mitigating heating device pollution are generally described. In an example embodiment, a heating device includes a primary combustion chamber for combustion of a fuel. A first and a second secondary combustion chamber are in fluid communication with the primary combustion chamber for receiving an exhaust flow of combustion products from the primary combustion chamber and are configured for combustion of one or more combustion products received from the primary combustion chamber. The first and second secondary combustion chambers may provide parallel fluid paths from the primary combustion chamber. A secondary combustion selector is provided for selectively allowing the exhaust flow through the first and second secondary combustion chambers.
    Type: Application
    Filed: April 25, 2014
    Publication date: October 30, 2014
    Inventors: Robert W. Ferguson, Derik K. Andors, Stephen F. Richardson
  • Patent number: 8871007
    Abstract: This invention provides a method for reducing mercury emissions from a cement plant comprising at least a particulate collection device and a preheater tower comprised of one or more preheater cyclones. The method comprises injecting pulverized coal into at least one preheater cyclone of said cement plant.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: October 28, 2014
    Assignee: Albemarle Corporation
    Inventors: Xin Liu, Jon E. Miller
  • Publication number: 20140305353
    Abstract: A process for the energy efficient, environmentally friendly recovery of liquid and gaseous products from solid or semi-solid hydrocarbon resources, in particular, oil shale or tar sands. The process involves non-oxidative pyrolysis to recover fluid energy values, oxidative combustion to recover energy values as recoverable heat, and environmental sequestration of gases produced.
    Type: Application
    Filed: September 9, 2013
    Publication date: October 16, 2014
    Inventors: James W. Bunger, Christopher P. Russell, Donald E. Cogswell
  • Publication number: 20140295358
    Abstract: A method and apparatus for burning hydrocarbons or other combustible liquids and gases, the apparatus (APP) has been provided with at least one inlet for a liquid and/or gaseous fuel (FUE) and air (AIR) and at least one outlet (EXHG) for gases for removing the gases (EXHG) generated in the apparatus (APP), at least one measurement and adjustment unit (C) for adjusting the amount of fuel (FUE) and air (AIR), at least one pre-combustion zone (Cz11, Cz12, Tz1) for the partial combustion of gases, and at least one post-combustion zone (Tz2, Cz21, Cz22) for the combustion of gases generated in pre-combustion, for the reduction of NOx's produced in pre-combustion, and/or for the oxidation of hydrocarbon and carbon monoxide emissions.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Applicant: OILON OY
    Inventors: Reijo LYLYKANGAS, Eero PEKKOLA, Tero TULOKAS
  • 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: 8834606
    Abstract: A flue gas adsorbent and method for making an adsorbent for mercury capture are disclosed. The adsorbent comprises an admixture of an adsorptive material and an additive that have been physically combined thereby eliminating the need for traditional impregnation. A method for removing mercury from a flue gas stream is also disclosed.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: September 16, 2014
    Assignee: Calgon Carbon Corporation
    Inventor: Nicholas R. Pollack
  • Patent number: 8833279
    Abstract: A reactor (110) serves to combust residual carbon in fine particulate matter, remove a contaminant from fine particulate matter, or change the composition of fine particulate matter. The reactor output is processed by particle collection devices (115, 125, 140, 155, 175) and heat exchangers (135, 150, 165) to provide particle outputs (118, 124, 131, 144, 159) of different sizes. A contaminant, such as carbon or a metal, is combusted, vaporized, volatized, broken down, or substantially appears on one particle output (144) so that another particle output and the exhaust gas (142) are substantially contaminant-free. Different outputs can also be selectively mixed, as desired, to product a combined output (171). Fly ash and silica fume can be processed separately or together to reduce the amount of unburned carbon in both. Metals can also be removed from the fine particulate matter. Kaolin can also be processed to produce metakaolin.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: September 16, 2014
    Assignee: The SEFA Group Inc.
    Inventors: Jimmy C. Knowles, John M. Castleman, III
  • Publication number: 20140251191
    Abstract: In a combustion system, a charge source is configured to cooperate with a collection plate and a director conduit to cause at least one particle charge-to-mass classification to be reintroduced to a flame for further reaction.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 11, 2014
    Applicant: ClearSign Combustion Corporation
    Inventors: DAVID B. GOODSON, TRACY A. PREVO, JOSEPH COLANNINO, ROBERT E. BREIDENTHAL, IGOR A. KRICHTAFOVITCH, CHRISTOPHER A. WIKLOF
  • Patent number: 8821153
    Abstract: Method and system for the production of a combustible gas from a fuel, comprising the conversion of the fuel, at a temperature that is between 600 and 1000° C. and at a pressure that is lower than 10 bar, into at least a combustible gas that comprises CH4, CO, H2, CO2, H2O and higher hydrocarbons in a reactor installation (1). At least part of the higher hydrocarbons present in the combustible gas is catalytically converted into at least CH4, CO, H2, CO2 and H2O in a reactor (45) at a pressure that is lower than 10 bar. After this catalytic conversion, an amount of H2O and an amount of CO2 are removed from the combustible gas in a separator installation (50) at a pressure that is lower than 10 bar. After the removal of H2O and CO2, the pressure of the combustible gas is raised by a compressor (71).
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: September 2, 2014
    Assignee: Stichting Energieonderzoek Centrum Nederland
    Inventors: Christiaan Martinus Van Der Meijden, Lucas Petrus Loduvicus Maria Rabou
  • Patent number: 8821819
    Abstract: A promoted activated carbon sorbent is described that is highly effective for the removal of mercury from flue gas streams. The sorbent comprises a new modified carbon form containing reactive forms of halogen and halides. Optional components may be added to increase reactivity and mercury capacity. These may be added directly with the sorbent, or to the flue gas to enhance sorbent performance and/or mercury capture. Mercury removal efficiencies obtained exceed conventional methods. The sorbent can be regenerated and reused. Sorbent treatment and preparation methods are also described. New methods for in-flight preparation, introduction, and control of the active sorbent into the mercury contaminated gas stream are described.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: September 2, 2014
    Assignee: Energy & Environmental Research Center Foundation
    Inventors: Edwin S. Olson, Michael J. Holmes, John Henry Pavlish
  • Publication number: 20140230703
    Abstract: An oxygen fueled integrated pollutant removal and combustion system includes a combustion system and an integrated pollutant removal system. The combustion system includes a furnace having at least one burner that is configured to substantially prevent the introduction of air. An oxygen supply supplies oxygen at a predetermine purity greater than 21 percent and a carbon based fuel supply supplies a carbon based fuel. Oxygen and fuel are fed into the furnace in controlled proportion to each other and combustion is controlled to produce a flame temperature in excess of 3000 degrees F. and a flue gas stream containing CO2 and other gases. The flue gas stream is substantially void of non-fuel borne nitrogen containing combustion produced gaseous compounds.
    Type: Application
    Filed: April 2, 2014
    Publication date: August 21, 2014
    Inventors: Brian R. Patrick, Thomas L. Ochs, Cathy A. Summers, Danylo B. Oryshchyn, Paul C. Turner
  • 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
  • Patent number: 8807056
    Abstract: A system and method is provided for the removal of mercury from flue gas. Effective removal of mercury is obtained by oxidation of elemental mercury, with highly reactive halogen species derived from dissociation of halogen compounds at moderate temperatures brought into contact with the flue gas with or without the addition of carbon.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: August 19, 2014
    Assignee: Energy & Environmental Research Center Foundation
    Inventors: Michael J. Holmes, John H. Pavlish, Edwin S. Olson
  • 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