With Exhaust Gas Treatment Means Patents (Class 110/203)
  • Patent number: 11291331
    Abstract: A cooking fume treatment system for cooking machines comprises a sealed cooking cavity (A100), cooking equipment (A101) and a first cooking fume treatment device (A200), the cooking equipment (A101) is arranged in the sealed cooking cavity (A100); the first cooking fume treatment device (A200) is provided with a first fume inlet (A201) and a first fume outlet (A202), the first fume inlet (A201) is communicated with the cooking equipment (A101), and the first fume outlet (A202) is communicated with the external of the sealed cooking cavity (A100). By arranging the sealed cooking cavity (A100), cooking fume generated by the cooking machine is sealed in the sealed cooking cavity, and the cooking fume can be discharged into the environment only after being treated by the first cooking fume treatment device (A200), so that the influence of the cooking fume of the cooking machine on the environment is reduced.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: April 5, 2022
    Inventors: Jinbiao Xu, Guang He, Qing He, Luoya Zeng
  • Patent number: 10820602
    Abstract: An indoor smoker includes a cabinet defining a discharge vent, a smoking chamber having a chamber outlet, and an exhaust assembly including an exhaust duct and a recirculation duct providing fluid communication between the chamber outlet and the discharge vent. An air handler urges a flow of smoke through a catalytic converter positioned within the exhaust duct to lower volatile organic compounds prior to discharging the smoke. A recirculation port may be defined between the recirculation duct and the exhaust duct upstream of the catalytic converter and a damper may direct the flow of smoke through the recirculation port when the smoke contains unacceptable levels of volatile organic compounds.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: November 3, 2020
    Assignee: Haier US Appliance Solutions, Inc.
    Inventors: Tomas Garces, Samuel Vincent DuPlessis, Stephen Bernard Froelicher
  • Patent number: 10646824
    Abstract: A catalytic cookstove, for use in cooking, heating, and lighting, is disclosed for reducing particulate matter and carbon monoxide emissions. A non-platinum group metal catalyst promotes oxidation of particulate matter and carbon monoxide to produce carbon dioxide. Additionally, a passive damper automatically adjusts the fuel-to-air ratio based upon the size of fuel fed to the stove to ensure catalyst light off.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: May 12, 2020
    Assignee: Mainsteam Engineering Corporation
    Inventors: Paul E. Yelvington, Alex Paulsen, Andrew Carpenter, Tyler Kunsa, Ted Amundsen, Nicholas Schwartz
  • Patent number: 10619870
    Abstract: A humid air forming device, which cools an object to be measured to a predetermined temperature, and which sprays humid air having a predetermined temperature to the cooled object to be measured, thereby forming moisture particles on the surface of the object to be measured, and a measurement system including the same. The humid air forming device includes a cooling unit that cools the object to be measured to a first temperature or lower; and a humid air supply unit that forms humid air having a second temperature, which is higher than the first temperature, and spraying the humid air toward the surface of the cooled object to be measured, thereby forming moisture particles on the surface of the cooled object to be measured.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: April 14, 2020
    Inventors: Jang Il Ser, Hyo Bin Kim, Yong Seung Shin, Hong Ki Kim, Ho Jun Lee
  • Patent number: 10520253
    Abstract: A mixing chamber assembly for mixing burner output with kiln return air. A first vertical duct that receives kiln return air from the first return duct when the kiln is operated in a first mode and receives kiln return air from the second return duct when the kiln is operated in a second mode. A second vertical duct in fluid communication with the first vertical duct so that the kiln return air enters the first vertical duct, travels upward, and changes direction to then travel downward in the second vertical duct to pass downward into a dispersion chamber to provide downward movement of the kiln return air. The dispersion chamber having a hot duct discharge to convey burner output laterally above a delay table surface. The downward movement of the kiln return air colliding with the burner output to provide mixing of the kiln return air with the burner output.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: December 31, 2019
    Assignee: Kiln Drying Systems & Components, LLC
    Inventors: Lee F. Mallory, Robert K. Pollock
  • Patent number: 10480822
    Abstract: A condensate neutralizer device for treating a condensate flow, the condensate neutralizer device includes a compartment adapted to receive condensate neutralizing materials therein, the compartment having an inlet end and an outlet end, a plurality of apertures disposed only on a bottom surface of each of the inlet end and the outlet end of the compartment. The compartment is configured to receive the condensate flow traversing upwardly through the plurality of apertures at the inlet end in a direction from the inlet end to the outlet end through the condensate neutralizing materials before allowing a treated flow of the condensate flow to traverse downwardly through the plurality of apertures at the outlet end to exit the compartment as an effluent.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: November 19, 2019
    Assignee: Intellihot, Inc.
    Inventors: Sridhar Deivasigamani, Sivaprasad Akasam, Miguel Gonzales
  • Patent number: 10390871
    Abstract: A cryoneedle comprises an outer tube having a distal section with a generally central gas supply line placed within the outer tube. The gas supply line supplies a cryogas for forming an iceball on an outer surface of the outer tube over the distal section. The gas supply line terminates in an expansion chamber placed within the distal section. The cryoneedle comprises a heat exchange helix contacting the inner surface of the outer tube. The heat exchange helix has an increasing surface area per unit distance of the distal section such that the iceball has a generally symmetric shape.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: August 27, 2019
    Assignee: Galil Medical Inc.
    Inventors: Satish Ramadhyani, Andrew Kevin Zachman, Mordechay Bleiwies, Mark Timothy Johnson
  • Patent number: 10307710
    Abstract: A sorbent composition for removing mercury from flue gas, including a powdered sorbent having a fifty percent distribution particle size of from about 20 micrometers to about 75 micrometers. The invention also include a method of cleaning flue gas, the method including injecting a powdered sorbent into the flue gas, wherein the powdered sorbent has a fifty percent distribution particle size of from about 20 micrometers to about 75 micrometers.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: June 4, 2019
    Assignee: CARBONXT, INC.
    Inventors: David W. Mazyck, Regina Rodriguez, Christine O. Valcarce
  • Patent number: 10273007
    Abstract: A galley assembly for a cabin of a vehicle includes a galley housing having a front side and a plurality of compartments capable for housing kitchen appliances, an air suction port, an air extraction manifold having a bypass element, and a mechanical control device. Each compartment has a ventilation port. The air suction port is pneumatically coupled with the air extraction manifold, which is coupled with the ventilation ports of the compartments. The bypass element is positioned on one of the plurality of walls facing away from the front side and it selectively provides a through-flow opening with an adjustable opening area to the surrounding of the galley assembly.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: April 30, 2019
    Inventors: Boris Holtorf, Rodrigo Espinoza
  • Patent number: 10197286
    Abstract: This invention relates to a combustion system. The combustion system includes a fireplace which has a fire base, a primary combustion zone for pyrolysising and/or combusting a biomass fuel, and a secondary combustion zone for combusting gases and/or particulate matter produced from the pyrolysis and/or combustion of the biomass fuel. The combustion system also includes an exhaust flue, the exhaust flue extending to a position near to, or adjacent, the secondary combustion zone and/or the fire base. The invention may be particularly suitable for use in relation to wood burners, either by retrofitting to existing wood burners or by incorporating into new wood burners.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: February 5, 2019
    Inventor: Jason Joren Jens Stewart
  • Patent number: 10151509
    Abstract: A water heater of a latent heat recovery type adapted to an exhaust suction system includes a drainage water discharge path. The drainage water discharge path includes a drainage water tank having a water-seal mechanism, and the drainage water tank has a first chamber and a second chamber communicating with the first chamber through a hole. The second chamber is capable of storing drainage water up to a storage water plane located at a position higher than an upper end of the hole, and the first chamber senses a fluid level in the first chamber reaching a prescribed sensing plane. A height difference between the sensing plane in the first chamber and the storage water plane is greater than a height of a water head obtained by converting a difference between atmospheric pressure and a minimum pressure at the drainage water inlet to the water head.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: December 11, 2018
    Inventor: Hidefumi Koda
  • Patent number: 10101023
    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: Grant
    Filed: April 25, 2014
    Date of Patent: October 16, 2018
    Assignee: Incendia IP, LLC
    Inventors: Robert W. Ferguson, Derik K. Andors, Stephen F. Richardson
  • Patent number: 9989247
    Abstract: A pyrolysis-combustion dual-bed system comprises a fluidized bed, a cyclone separator, a coal ash distributor, an ash-coal mixer, a lower pyrolysis bed, a return feeder and a cleaner, wherein the cyclone separator is connected with an upper lateral side of the fluidized bed, the outlet end of the cyclone separator is connected with the inlet end of the coal ash distributor; the two outlets of the lower pyrolysis bed are respectively connected with the inlet of an external bed and the inlet of the cleaner; the outlet of the external bed is connected with the inlet of the return feeder; the return feeder close to the lower lateral side of the fluidized bed is connected with the inlet on the lower lateral side of the fluidized bed; and the outlet of the cleaner is connected with the inlet of the lower lateral side of the fluidized bed.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: June 5, 2018
    Inventors: Liyong Cao, Qi Du, Wei Fan, Zhengning Liu, Pan Guo, Jiang Liu, Yuan Zhang, Chunfei Zhang, Chunyun Hu, Xiaoguang Zhang, Yu Lei
  • Patent number: 9884286
    Abstract: The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: February 6, 2018
    Assignee: ADA-ES, Inc.
    Inventors: Sharon Sjostrom, Connie Senior, Jon Lagarenne, Kenneth E. Baldrey, Ramon Bisque, Michael D. Durham, Nina Bergan French
  • Patent number: 9878404
    Abstract: A condensation management system, a furnace having the condensation management system and a cold end header box employable in the condensation management system are disclosed herein. In one embodiment, the condensation management system includes: (1) a first drain hose positioned to drain flue condensation from a flue pipe of the furnace, (2) a second drain hose positioned to drain the flue condensation from the flue pipe and (3) a condensation collector box configured to collect both the flue condensation and combustion condensation from a heat exchanger of the furnace, the condensation collector box including at least one drain for draining both the flue condensation and the combustion condensation therefrom.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: January 30, 2018
    Assignee: Lennox Industries Inc.
    Inventors: Jeff P. Gedcke, George L. Joyner, Jr., Glenn W. Kowald, Hans J. Paller
  • Patent number: 9746204
    Abstract: A water heater is provided that can suppress backflow (entry) of drainage water into a fan from downstream of the fan in a path of a flow of combustion gas. The fan includes a fan case, an impeller housed within the fan case, a drive source attached to the fan case so as to drive the impeller, and a rotation shaft connecting the impeller and the drive source. An exhaust connection portion has a connection portion case and is provided with an exhaust port for emitting combustion gas delivered from the fan to outside of the water heater. The exhaust connection portion also has a drainage water discharge portion for discharging drainage water accumulated downstream of the fan in the path of the flow of combustion gas.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: August 29, 2017
    Inventors: Hironao Matsunaga, Shuji Kameyama, Keigo Fukunishi, Norihide Wada
  • Patent number: 9675931
    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: October 12, 2015
    Date of Patent: June 13, 2017
    Assignee: Energy & Environmental Research Center Foundation
    Inventors: Michael J. Holmes, John H. Pavlish, Edwin S. Olson
  • Patent number: 9513030
    Abstract: A water heater of a latent heat recovery type includes: a combustion apparatus including a burner having a plurality of burner port portions and generating combustion gas from openings at ends of the plurality of burner port portions; a heat exchanger heating water that flows through inside by heat exchange with combustion gas generated in the combustion apparatus; and a fan suctioning the combustion gas that has passed through the heat exchanger and emitting combustion gas to outside of the water heater. The fan includes a fan case, an impeller housed within the fan case, and a drive source connected to the impeller. At least a part of an upper surface of a bottom wall of the fan case is inclined with respect to a reference plane including the openings of the plurality of burner port portions.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: December 6, 2016
    Inventors: Tatsuya Karaki, Yasutaka Kuriyama, Norihide Wada, Shuji Kameyama, Keigo Fukunishi
  • Patent number: 9435435
    Abstract: Systems for providing universally installable secondary safety systems for use, in one embodiment, with a riser for a septic tank are disclosed. In some embodiments, the system includes the following: a riser extending from a system of interest located underground, a retainer ring installed within said riser, and a safety screen to prevent access to the underground system and lower portions of the riser from above.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: September 6, 2016
    Assignee: Polylok, Inc.
    Inventor: Peter W. Gavin
  • Patent number: 9404670
    Abstract: A fan serves to suction combustion gas which has passed through a secondary heat exchanger and emitting combustion gas to the outside of a water heater. A drainage water discharge pipe is connected to the secondary heat exchanger in order to discharge the drainage water produced as a result of recovery of latent heat in the secondary heat exchanger to the outside of the secondary heat exchanger. An air passage pipe is connected to an exhaust box. A Y-shaped pipe joint has a flow path allowing merging of the drainage water discharge pipe and the air passage pipe, and the flow path after merging leads to the outside of the water heater.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: August 2, 2016
    Inventors: Sakiko Kimura, Takeshi Oohigashi, Yasutaka Kuriyama, Shuji Kameyama
  • Patent number: 9252963
    Abstract: An overlay protocol and system for allowing multicast routing in the Internet to be performed at the application level. The overlay protocol uses “native” Internet multicast and multicast routing protocols to route information, according to overlay routing tables. Overlay groups are mapped to native multicast groups to exploit native multicasting in regional or local forwarding domains. Use of the overlay protocol allows overlay distribution to be handled in a more intelligent and bandwidth-managed fashion. Overlay routers are placed at each of several local area networks, Internet service provider's point of presence, enterprise, or other cohesively-managed locations. The overlay computers are configured according to bandwidth and security policies, and perform application-level multicast distribution across the otherwise disjoint multicast networks by using the overlay routing. The result is an overlay multicast network that is effectively managed according to local network management policies.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: February 2, 2016
    Assignee: Google Inc.
    Inventor: Steven McCanne
  • Patent number: 9134022
    Abstract: A method for reducing pollutant emissions uses a two-stage primary combustion process for a solid-containing fuel including a primary furnace having a combustion chamber, a solid fuel burnout zone and a primary flue-gas post combustion chamber, and a separate secondary combustion train. The fuel is burned in the primary combustion chamber while supplying primary gas in a substoichiometric amount so as to form high heating-value gas and low-carbon solid residue. A partial stream of this gas is diverted and the remainder is passed to the post-combustion chamber. The diverted stream is passed to the secondary combustion train, which includes a conditioner, a secondary combustion chamber and an energy recovery device. Energy-spent exhaust gas from the train is recirculated to the furnace upstream of the post-combustion chamber in which it is burned with the remainder of the high heating value gas and an oxygen-containing gas supplied in superstoichiometric amounts.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: September 15, 2015
    Inventor: Hans Hunsinger
  • Patent number: 9074791
    Abstract: A condensate collector box includes a furnace mounting plate having a first edge portion, a second edge portion that extends from the first edge portion, at least one vent drain channel that extends along one of the first and second edge portions, and a heat exchanger condensate collection area. The condensate collector box also includes an inducer fan mounting member having a first surface and opposing second surface arranged upon the furnace mounting plate to form a condensate collection zone. The inducer fan mounting member includes at least one inducer fan drain passage that is fluidly connected to the at least one vent drain channel.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: July 7, 2015
    Inventors: Larry D. Rieke, Jayashanger Goundiah Ramasamy, Brian A. Reeves
  • Publication number: 20150144037
    Abstract: The present invention is related to the synthesis of a nano-hybrid catalyst made of carbon nanotubes and metal ferrite materials for the removal of NOx compounds, which are emitted from stationary sources, through an ammonia selective catalytic reduction process. Weight ratios of carbon nanotube (x) to metal ferrite (y) is preferably about (x/y) 0.1 to 10. The present invention is also directed to the synthesis of a nano-hybrid catalyst to improve the efficiency of the conventional NOx reduction process at lower reaction temperatures. By use of the preferred nano-hybrid catalyst, it is possible to locate a selective catalytic reduction (SCR) unit capable of operating at lower temperatures, e.g., below 260° C., and from about 50° C. to about 250° C., after the desulfurizer and the particle removal equipment. With the exhaust gas cleaner, the lifetime of the catalyst can be increased. This nano-hybrid catalyst provides higher NOx removal efficiencies at low temperatures, typically from about 50° C.
    Type: Application
    Filed: September 18, 2014
    Publication date: May 28, 2015
    Applicants: Research Institute of Petroleum Industry (RIPI), Tarbiat Modaress University
    Inventors: Mahnaz Pourkhalil, Alimorad Rashidi, Abdolsammad Zarringhalam Moghaddam, Mahdi Mohajeri, Ali Mehri
  • Publication number: 20150144038
    Abstract: To provide a device for removing radioactive cesium from waste material containing radioactive cesium, doing so at low energy and in a dependable manner. The removal device 1 for radioactive cesium is provided with: a rotary kiln 41 which is provided with a burner 41b supplying from the kiln outlet an organic matter O3 contaminated with radioactive cesium, and an inorganic matter charging port 41a supplying from the kiln inlet inorganic matter S4 contaminated with radioactive cesium, and which is employed to burn the organic matter O3 together with the inorganic matter S4; and a recovery device cooling tower 51, a cyclone 52, a bag filter 53 for recovering cesium that has volatilized in the rotary kiln. A drying/crushing device (dryer 21, crusher 22) for drying and crushing the organic matter O1 prior to charging the radioactive cesium-contaminated organic matter to the rotary kiln can be provided.
    Type: Application
    Filed: June 19, 2013
    Publication date: May 28, 2015
    Applicant: Taiheiyo Cement Corporation
    Inventors: Yoshihisa Tanaka, Tetsuo Ogiri, Kenichi Honma, Soichiro Okamura, Takuya Shindo
  • 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
  • Publication number: 20150107496
    Abstract: The various embodiments herein provide an improved biomass based down draft gasifier for producing electrical energy. The gasifier comprises a reactor with double walled construction having an annular space between outer and inner shells. The annular space houses multiple helical guide vanes welded to the inner shell. The reactor is covered with a top cover assembly. An air inlet manifold is provided for directing the controlled air into the reactor through the air inlet nozzles. An automatic start system is provided for controlling the combustion of inlet fuel done with a spark plug. The gasifier comprises a throat which permits the ashes and charcoal of burnt fuel to drop into the bottom of the reactor. The gas separation holes are provided at the bottom of the reactor to separate the product gas from the charcoal. The product gas is taken out from an output pipe.
    Type: Application
    Filed: October 14, 2014
    Publication date: April 23, 2015
  • Patent number: 8984854
    Abstract: Apparatus and methods are disclosed for rapidly counteracting a transient low-pressure condition, that can occur intermittently in the exhaust section of a power plant or other such industrial facility upstream of exhaust fans as a result of an event that interrupts the generation and/or flow of exhaust gases, using jet nozzles disposed in the exhaust section and connected to a source of pressurized air or other suitable momentum material. By orienting the jet nozzles in a direction generally opposite to the flow of exhaust gas and actuating the system to release a burst of compressed air, for example in the event of a power plant interruption, the low-pressure condition can be ameliorated preventing damage to the exhaust section.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: March 24, 2015
    Assignee: Aecom
    Inventor: Frederick Robert Rosse
  • Publication number: 20150075510
    Abstract: This invention describes a stove comprising a combustion chamber and a flue for removing exhaust from said combustion chamber, where said combustion chamber and said flue are connected via a passageway; said combustion chamber comprising a top and a bottom, where said top and said bottom are connected by one or more sides; a catalytic unit arranged between said combustion chamber and said flue in said passageway; said catalytic unit provides a guide way for the exhaust, where said catalytic unit comprises at least one isolating members and at least one catalytic member, said catalytic member comprising a first wave-like structure, said first wave-like structure being provided on at least one catalytic surface of said catalytic member and, in use, at least partly being in contact with the exhaust and, where, in use, the direction of the exhaust is substantially transverse to the waves of said first wave-like structure.
    Type: Application
    Filed: April 25, 2013
    Publication date: March 19, 2015
    Inventors: Thomas Kristensen, Soren Norgaard Bertel
  • 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: 8973567
    Abstract: A carbon fuel combustion process, employing an air gas separation unit, a combustion unit operating either with air or with an oxidizer leaner in nitrogen than air, coming from the air gas separation unit, and a unit for compressing and/or purifying the CO2 coming from the combustion flue gas, wherein the power consumed by the air gas separation unit and/or the flow of oxygen produced by the air gas separation unit and/or the capture of the CO2 coming from the combustion flue gas are variable over time is presented.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: March 10, 2015
    Assignee: L'Air Liquide, Societe Anonyme pour l 'Etude et l 'Exploitation des Procedes Georges Claude
    Inventors: Philippe Court, Arthur Darde, Jean-Pierre Tranier, Patrick Le Bot, Jean-Marc Tsevery
  • 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: 20150040804
    Abstract: A controlled kiln and manufacturing system for biochar production includes control systems and subsystems. An example controlled kiln (100) includes a drum (200), a lid (120) and a floor (250) together forming a combustion chamber configured to contain feedstock for conversion into biochar. A catalytic converter (700) may be operatively coupled with an outlet of the kiln (100). A monitor and control subsystem may be operative to issue notifications or automatically end biochar conversion. A ventilation and exhaust system including independently controllable air inlet ports (240), a chimney (300) and smoke inlet pipes (330) enables regulation of smoke flow from a combustion chamber of the kiln while a heat exchanger (1000) enables providing exhaust heat to one or more secondary applications.
    Type: Application
    Filed: March 9, 2013
    Publication date: February 12, 2015
    Inventors: Donald P. Aupperle, Mikel S. Olander, Benjamin M. Beierwaltes, William T. Beierwaltes, James G. Gaspard, II
  • 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
  • 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
  • Publication number: 20140352581
    Abstract: This invention relates to a system for CO2 capture from a combustion flue gas using a CaO/CaCO3 chemical loop, wherein the CO2 is captured from large scale combustion systems using CaO as regenerable CO2 sorbent, where CaO particles are carbonated in contact with a flue gas at around 650° C. to later release pure CO2 when supplied with sufficient heat for CaCO3 calcination at around 900° C., wherein the system of this invention is characterized by a first direct heat exchange from a high temperature flue gas to a recirculation stream of calcined solids from the calciner and/or a second direct heat exchange from a flue gas to the carbonated solids arriving to the calciner, thereby reducing the heat requirements for calcination.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 4, 2014
    Applicant: Consejo Superior De Investagaciones Cientificas
    Inventors: Juan Carlos Abanades Garcia, Borja Arias Rozada, Maria Elena Diego de Paz, Isabel Martinez Berges
  • 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: 20140343342
    Abstract: To provide a method and an apparatus for removing radioactive cesium from waste containing radioactive cesium at low cost. A radioactive cesium removal apparatus 1 including: an incinerator 22 for burning an inflammable waste polluted with radioactive cesium; a suspension preheater 23 for, with the combustion exhaust gas G5 and a sensible heat of the incineration ash of a combustible C discharged from the incinerator, generating calcium oxide or/and magnesium oxide from a source of calcium oxide or/and a source of magnesium oxide, cyclones of the suspension preheater being arranged in multistages; a rotary kiln 21 for burning an inorganic substance S polluted with radioactive cesium together with the calcium oxide or/and the magnesium oxide and the incineration ash D3 including the radioactive cesium; and collectors 31, 32 for collecting cesium volatilized in the rotary kiln.
    Type: Application
    Filed: October 30, 2012
    Publication date: November 20, 2014
    Inventors: Tetsuo Ogiri, Souichirou Okamura, Kenichi Honma
  • 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: 20140305872
    Abstract: A system adapted to separate a natural gas feed stream into a sweetened gas stream and at least one gaseous waste stream, and to discharge, recover or destroy the at least one gaseous waste stream. The system includes an acid gas separation subsystem adapted to separate the natural gas feed stream into the sweetened gas stream and a first portion of the at least one gaseous waste stream, a destruction subsystem adapted to incinerate the first portion of the at least one gaseous waste stream to form a flue gas, and a scrubber reactor subsystem adapted to receive a water stream and/or an oxygen containing air stream, and to remove at least one portion of the flue gas using the water stream to form a vent gas stream and a wastewater stream, wherein the vent gas is exhausted to the atmosphere.
    Type: Application
    Filed: June 26, 2014
    Publication date: October 16, 2014
    Inventor: Richard Paul Posa
  • 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
  • Publication number: 20140250887
    Abstract: A power generation system using low-grade coal includes a low-grade coal refining facility that heats the low-grade coal to refine the low-grade coal into high-grade coal, a CO2 recovery facility that recovers CO2 from an exhaust gas generated by refining the low-grade coal in the low-grade coal refining facility, while using steam generated by refining the low-grade coal in the low-grade coal refining facility, and a power generation facility that performs the power generation using, as fuel, the high-grade coal obtained by refining the low-grade coal in the low-grade coal refining facility.
    Type: Application
    Filed: March 5, 2013
    Publication date: September 11, 2014
    Inventors: Takahito Yonekawa, Shintaro Honjo, Makoto Susaki
  • Publication number: 20140234788
    Abstract: Contemplated configurations and methods are presented for effectively controlling the temperature in an oxy-fuel combustion system. Contemplated systems preferably introduce water independent of the fuel and oxygen into the combustion chamber. Water is injected through one or more nozzles, wherein water is atomized or sprayed, creating boundary layer cool zones in a boiler system and wherein water is recovered.
    Type: Application
    Filed: February 20, 2013
    Publication date: August 21, 2014
    Applicant: Fluor Technologies Corporation
    Inventors: Dennis W. Johnson, James H. Brown, Bo Oscarsson, Jon Peeples, Dennis Malone, Randy Grantz
  • 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: 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
  • Patent number: 8795414
    Abstract: A process and system for feeding solids and carrier gases through the wall of a duct or chamber through which a gas stream flows to the flowing gas stream from a feed source exterior of the duct or chamber.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: August 5, 2014
    Assignee: Albemarle Corporation
    Inventor: Xin Liu
  • Patent number: 8795416
    Abstract: An in-situ forced oxidation wet flue gas desulfurization apparatus, method and arrangement for utilization with oxy-fuel combustion power plants. The apparatus is a tower-like structure having a flue gas scrubbing zone and a reaction zone located subjacent to the gas scrubbing zone. A sulfur oxide absorbing liquid slurry is supplied to the gas scrubbing zone to react with and scrub the sulfur oxides from the flue gas. The partially reacted liquid slurry reagent and the scrubbed products drain into the reaction zone, rising to a set level. Oxidation air is introduced into the liquid slurry in the reaction zone to force the in-situ oxidation of sulfur compounds collected in the reaction zone.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: August 5, 2014
    Assignee: Babcock & Wilcox Power Generation Group, Inc.
    Inventors: Dennis K. McDonald, Kevin J. Rogers
  • Publication number: 20140202362
    Abstract: To include a boiler 11 that burns fuel F, an air heater 13 that recovers heat of flue gas 18 from the boiler 11, a first precipitator 14 that reduces dust in the flue gas 18 after heat recovery, a desulfurizer 15 that reduces sulfur oxides in the flue gas 18 after dust reduction by an absorbent, a dewaterer 32 that reduces gypsum 31 from desulfurization discharged water 30 discharged from the desulfurizer 15, a spray drying device 34 including an atomizer that atomizes a dewatering filtration fluid 33 discharged from the dewaterer 32, and a flue-gas introducing line L11 that introduces a part of the flue gas 18 into the spray drying device 34.
    Type: Application
    Filed: March 20, 2014
    Publication date: July 24, 2014
    Inventors: Nobuyuki Ukai, Seiji Kagawa, Tatsuto Nagayasu, Naoyuki Kamiyama, Toshihiro Fukuda
  • Publication number: 20140183866
    Abstract: A method and system for generating electrical power is provided in which a high pressure synthesis gas stream generated in a gasifier is partially oxidized in an oxygen transport membrane based reactor, expanded and thereafter, is combusted in an oxygen transport membrane based boiler. A low pressure synthesis gas slip stream is split off downstream of the expanders and used as the source of fuel in the oxygen transport membrane based partial oxidation reactors to allow the oxygen transport membrane to operate at low fuel pressures with high fuel utilization. The combustion within the boiler generates heat to raise steam to in turn generate electricity by a generator coupled to a steam turbine. The resultant flue gas can be purified to produce a carbon dioxide product.
    Type: Application
    Filed: December 23, 2013
    Publication date: July 3, 2014
    Inventors: Brian R. Kromer, Michael M. Litwin, Sean M. Kelly