Combined Patents (Class 110/233)
  • Patent number: 11421163
    Abstract: A device for desulfurizing crude oil comprises a desulfurization system for sulfur-containing crude oil which forms a hydrogen sulfide-containing acid gas; a system for extracting elemental sulfur and a hydrogen sulfide-containing tail gas as exhaust gas from the acid gas; a device for generating electricity and gypsum from the tail gas; and a gas line system for supplying acid gas from the desulfurization system to the system and to the device, and for supplying tail gas from the system to the device. The gas line system has a gas distributing apparatus which supplies acid gas solely to the system in a first position, supplies acid gas solely to the device in a second position, and supplies a first part of the acid gas to the system and a second part of the acid gas to the device in a distributing position.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: August 23, 2022
    Inventor: Rolf Hueller
  • Patent number: 11224310
    Abstract: Disclosed is an induction burner ignition system that implements an induction burner located external to the fire pot. The induction burner can be controlled by a controller to start and stop according to a predetermined heating algorithm, and can further provide heat via heat sinks in contact with the induction burner. Because the induction burner is located external to the fire pot, it is easily repairable or replaceable and avoids the harmful atmosphere of the fire pot. The induction burner also provides more uniform heating than conventional hot rod technology to improve the pellet heating process.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: January 18, 2022
    Assignee: Dansons US, LLC
    Inventors: Paul J. Simon, Michael R. Giebel
  • Patent number: 10612850
    Abstract: A dynamically adjustable textile dryer and method of controlling a conveyor belt speed of the textile dryer is provided. The speed of the belt is utilized to more quickly adjust the temperature of the drying chamber.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: April 7, 2020
    Assignee: M&R Printing Equipment, Inc.
    Inventors: Boguslaw Biel, Radu Suciu
  • Patent number: 10377952
    Abstract: This method for inhibiting the occurrence of a pyrolysis deposit in a pyrolysis gasification system includes: gasifying biomass (S2) through pyrolysis in a pyrolysis gasification furnace (5); separating, in a solid-gas separation unit (7), a pyrolysis gas (G1) and a carbide (C) continuously formed through pyrolysis of the biomass (S2); feeding an oxygen-containing gas (G3) to the separated pyrolysis gas (G1); and introducing the pyrolysis gas (G1) together with the oxygen-containing gas (G3) to a combustion furnace (6) through a pipe (9) which constitutes a pyrolysis gas line (8).
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: August 13, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENVIRONMENTAL & CHEMICAL ENGINEERING CO., LTD.
    Inventors: Yuuki Endou, Takehiro Kitta, Kazuaki Kakurata, Junichiro Abe
  • Patent number: 9867393
    Abstract: A system for a tobacco curing barn is capable of collecting tobacco-derived moisture from tobacco while that tobacco is cured. The system incorporates a tobacco curing barn or other type of curing enclosure, such as bulk curing barn used for the flue-curing of tobacco. The curing barn is equipped with at least one reclamation element configured to condense and collect moisture released from tobacco cured within the barn. The reclamation element is disposed in proximity with the enclosure in a manner and location providing passage of moist air released from the tobacco across a surface of the reclamation element. The system also includes at least one storage container disposed in fluid communication with the reclamation element surface and configured to store moisture and moisture-borne material collected by the reclamation element. The resulting tobacco-derived components can be blended with other tobacco materials, such as is common practice during tobacco reordering.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: January 16, 2018
    Assignee: R.J. REYNOLDS TOBACCO COMPANY
    Inventors: August J. Borschke, Michael F. Dube, Paul A. Brinkley, Anthony R. Gerardi, Crystal D. Hege Byrd
  • Patent number: 9428706
    Abstract: A method for co-producing a sulfur-containing raw synthetic gas and an essentially desulfurized solid residue from a sulfur-containing heavy petroleum residue feedstock, comprising feeding a bubbling fluidized-bed gasification reactor with the feedstock, and converting the feedstock to a raw synthetic gas by a partial oxidation reaction in the presence of water at a temperature at or below about 1000° C. and a pressure at or below about 10 atm, thereby also producing an essentially desulfurized solid residue, while the sulfur components are essentially comprised in the raw synthetic gas; and separately recovering the essentially desulfurized solid residue and the sulfur-containing raw synthetic gas.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: August 30, 2016
    Assignee: AFINA ENERGY INC.
    Inventors: Esteban Chornet, Aca Mincic, Martin Gagnon, Boris Valsecchi
  • Patent number: 8915199
    Abstract: Described is an integrated process of cogasifying an engineered fuel, formulated to be suitable for working under reducing environment, with coal and cofiring another engineered fuel, formulated to be suitable for working under oxidizing environment, with coal to produce electric power.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: December 23, 2014
    Assignee: Accordant Energy, LLC
    Inventors: James W. Bohlig, Dingrong Bai
  • Patent number: 8850715
    Abstract: What is described is a process and an installation for drying articles, in particular painted vehicle bodies, in which the articles are moved through a drying zone in which they are hardened in an inert-gas atmosphere. Inert gas is taken from the drying zone constantly or intermittently and is first of all conducted along a first face which is at a first temperature at which higher-boiling contaminants condense out. The condensate that forms in the process is discharged. After that, the inert gas which has been pre-cleaned in this way is conducted along at least one second face which is at a lower temperature than the first face. Lower-boiling contaminants are precipitated at this point. These condensates, too, are then discharged. This process and installation work more favorably, energy-wise, and with higher cleaning efficiency than known processes and installations of a similar type.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: October 7, 2014
    Assignee: Eisenmann AG
    Inventors: Werner Swoboda, Andreas Keller
  • Patent number: 8821634
    Abstract: A high temperature furnace comprising hot zone insulation having at least one shaped thermocouple assembly port to reduce temperature measurement variability is disclosed. The shaped thermocouple assembly port has an opening in the insulation facing the hot zone that is larger than the opening on the furnace shell side of the insulation. A method for producing a crystalline ingot in a high temperature furnace utilizing insulation having a shaped thermocouple assembly port is also disclosed.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: September 2, 2014
    Assignee: GTAT Corporation
    Inventors: Ning Duanmu, Dean C. Skelton, Menahem Lowy, Dzung Duc Nguyen
  • Patent number: 8726533
    Abstract: An baking case body of tunnel type sterilization dryer comprises a case body (1), an air intake cavity (24) which is disposed in the case body (1), a conveyor mesh belt (7), and an air return channel (22). The conveyor mesh belt (7) is located between the air return channel (22) and the air intake cavity (24). The air intake cavity (24) is divided into two or more than two independent air intake chambers (21) by one or more than one air intake partition boards (11). A heater (9) is disposed in each air intake chamber (21), and a hot air generator (2), a diffuser fan cover (3), a high temperature and high efficient filter (4) and a temperature probe (5) are disposed sequentially in each air intake chamber (21) from top to bottom. Air return partition boards (15) are arranged in the air return channel (22), corresponding to the air intake partition boards (11). The air return channel (22) is divided into two or more than two air return cavities (23) by the air return partition boards (15).
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: May 20, 2014
    Assignee: Truking Technology Limited
    Inventors: Dayu Cai, Zhigao Ning, Bo Yi, Zanming Zhu, Zhen Liu, Yue Tang
  • Patent number: 8714968
    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 The integrated. pollutant removal system includes at least one direct contact heat exchanger for bringing the flue gas into intimated contact with a cooling liquid to produce a pollutant-laden liquid stream and a stripped flue gas stream and at least one compressor for receiving and compressing the stripped flue gas stream.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: May 6, 2014
    Assignee: Jupiter Oxygen Corporation
    Inventors: Brian R. Patrick, Thomas L. Ochs, Cathy A. Summers, Danylo B. Oryshchyn, Paul C. Turner
  • Patent number: 8550018
    Abstract: A stirring control method is adapted for a combustion apparatus which includes a furnace for burning fuel material, and a stirring member rotatably disposed in the furnace for stirring the fuel material and ash resulting from burning of the fuel material. The stirring control method includes: controlling rotation of the stirring member at an initial rotational speed; determining whether a height of the fuel material reaches an upper detection range; generating an indication when the height of the fuel material reaches the upper detection range; determining whether the height of the fuel material reaches a lower detection range when the height of the fuel material does not reach the upper detection range; and controlling rotation of the stirring member at a rotational speed higher than the initial rotational speed when the height of the fuel material reaches the lower detection range.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: October 8, 2013
    Assignee: Suncue Company Ltd.
    Inventor: Jung-Lang Lin
  • Patent number: 8464704
    Abstract: A combustion apparatus for the burning of solid fuel using a plurality of secondary combustion zones is disclosed. The combustion apparatus includes primary and secondary air inlets, an inclined hearth and a unique second air source which washes up a window in the combustion apparatus creating a floating flame effect and rendering the window self-cleaning. A series of baffles define a secondary combustion pathway which optimizes secondary combustion of exhaust gasses and particulate matter. Coaxial rear and top direct venting apparatus are also disclosed. The combustion apparatus provided combusts a wide range of solid fuel at a high level of efficiency.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: June 18, 2013
    Inventor: Stephen Charles Brown
  • Patent number: 8312821
    Abstract: Disclosed is a system for recycling waste tires, which are industrial wastes, so as to protect our environment against pollution and promote recycling of industrial material.
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: November 20, 2012
    Assignee: Advanced Controls & Engineerings, Corp.
    Inventor: Yeong Min Jeon
  • Publication number: 20120240844
    Abstract: A high temperature furnace comprising hot zone insulation having at least one shaped thermocouple assembly port to reduce temperature measurement variability is disclosed. The shaped thermocouple assembly port has an opening in the insulation facing the hot zone that is larger than the opening on the furnace shell side of the insulation. A method for producing a crystalline ingot in a high temperature furnace utilizing insulation having a shaped thermocouple assembly port is also disclosed.
    Type: Application
    Filed: March 22, 2011
    Publication date: September 27, 2012
    Applicant: GT SOLAR, INCORPORATED
    Inventors: Ning Duanmu, Dean C. Skelton, Menahem Lowy, Dzung Duc Nguyen
  • Publication number: 20120235423
    Abstract: A portable air curtain incinerator for burning biomass, such as cleared logs and vegetation, is equipped with heat recovery panels along at least one of the sidewalls of the incinerator's firebox, and a heat transfer medium is cycled through the heat recovery panels and expanded to its gaseous phase by heat released during incineration of the biomass. The gaseous medium is directed to drive the turbine of a generator to generate electricity. The heat transfer medium is condensed, preferably using a local source of cooling water, and the cycle is repeated. The air curtain incinerator may include its own generator, or multiple incinerators may be coupled to a single shared generator.
    Type: Application
    Filed: October 27, 2010
    Publication date: September 20, 2012
    Applicant: AIR BURNERS LLC
    Inventor: Brian M. O'Connor
  • Patent number: 8187350
    Abstract: Apparatus and a process are described for compressing superheated steam into porous coal chunks in a chamber, and, after a time interval, expanding this steam out of the chamber, and repeating this steam cycle of compression followed by expansion. Thusly heated by the steam, volatile matter separates from the solid coke portion of the coal and separate volatile matter and coke products can be produced from coal or biomass fuels. These volatile matter liquids and tars can be used as fuel components in slurry fuels, for internal combustion engines used in our surface transportation industries. These solid coke products can be used as boiler fuel in steam electric plants. In this way our large domestic reserves of coal can be used as a fuel source, not only for electric power generation, but also for our surface transportation needs.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: May 29, 2012
    Inventor: Joseph Carl Firey
  • Publication number: 20120024205
    Abstract: A burner assembly comprising a burner with a body and a burner throat extending downwardly from the burner body, a carriage located below the burner and provided with a cradle, a media box configured to pivotally mate with the cradle along a horizontal axis of the media box such that the media box is supported on the carriage at the axis and can rotate on the carriage about the axis, the media box having a port that connects with the burner throat but that separates from the burner throat when the media box is tilted about its axis, and media in the media box to serve as a heat sink, where the axis is horizontally offset from the media box's center of gravity, and the media box may be rotated about the horizontal axis to allow for ready engagement and disengagement between the media box and the burner.
    Type: Application
    Filed: July 28, 2011
    Publication date: February 2, 2012
    Applicant: GILLESPIE + POWERS, INC.
    Inventors: John M. Peterman, Mark A. Roberts
  • Patent number: 8087926
    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: Grant
    Filed: December 28, 2005
    Date of Patent: January 3, 2012
    Assignee: Jupiter Oxygen Corporation
    Inventors: Brian R. Patrick, Thomas Lilburn Ochs, Cathy Ann Summers, Danylo B. Oryshchyn, Paul Chandler Turner
  • Patent number: 8047144
    Abstract: A multi-step process is provided in which waste material is processed in two or more steps. Specifically, an earlier step of the process heats the waste material at a first temperature. This results in a release of vapors for materials having a boiling point that is lower than the first temperature. A subsequent step of the process heats some or all of the remaining waste material at a second temperature, which is preferably higher than the first temperature. The subsequent heating results in a release of additional vapors for those materials having a boiling point that is lower than the second temperature. A system configured to carry out the process is also disclosed.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: November 1, 2011
    Assignee: Rineco Chemical Industries, Inc.
    Inventors: John P. Whitney, Carl Wikstrom
  • Patent number: 8020547
    Abstract: A pellet stove is disclosed comprising a reverse flow heated air pathway defined by stove sections. In an illustrated embodiment, the space between upper and lower stove sections is open to provide a heating or oven area. The stove can be readily disassembled in part for easy portability.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: September 20, 2011
    Assignee: Clarry Pellet Stove, LLC
    Inventors: Larry Hepper, Carl Williamson
  • Patent number: 8006407
    Abstract: A drying system (100) for use in drying out a water-damaged structure includes a blower (105) for providing outside air to the water damaged structure. An indirectly fired furnace (101) is used for heating the outside air prior to its introduction into the water-damaged structure. An exhaust blower (114) removes humid air from the water-damaged building, and one or more remote temperature and humidity sensors (117) are used for controlling the furnace air temperature and supply blower volume. An air intake filter box (111) is used for adding make-up air to recirculated building air and promoting cooling within accompanying trailer. A differential air pressure transmitter (118) controls the volume of moist air removed from the water damaged building to an optimal rate.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: August 30, 2011
    Inventor: Richard Anderson
  • Publication number: 20110107945
    Abstract: A method and device for controlling retention time of a fluid medium in a fluidized-bed gasification furnace in a gasification facility are provided. A fluid medium is guided to any of a plurality of fluid-medium charge ports connected to a gasification furnace at intervals from an upstream end thereof toward a downstream side in a distribution direction of a fluid medium longitudinally of the gasification furnace. A raw material is guided to any of a plurality of raw-material charge ports connected to the gasification furnace at positions longitudinally of the gasification furnace and correspondingly to the fluid-medium charge ports. The fluid medium is extracted and guided to a combustion furnace from a fluid-medium extraction port connected to a downstream end of the gasification furnace longitudinally thereof in the distribution direction of the fluid medium. Thus, retention time of the fluid medium in the gasification furnace is controlled.
    Type: Application
    Filed: July 10, 2009
    Publication date: May 12, 2011
    Applicant: IHI Corporation
    Inventor: Toshiyuki Suda
  • Patent number: 7892303
    Abstract: A first process step comprises creating a hot gas, containing some molecular oxygen, by burning gas fuel with air and subsequently adding air to the burned gases. A second process step passes these hot oxygen containing gases through a bed of coal chunks, to remove volatile matter from the coal, and partially oxidize some of the volatile matter, as well as to transform the coal chunks into coke chunks. These hot coke chunks are transferred into a coke reaction chamber, where air is passed upward through the coke bed and oxidizes the coke largely to carbon monoxide, a fuel gas. This carbon monoxide fuel gas is combined with the volatile matter gases, and this fuel gas combination can be cleanly burned with addition thereto of overfire air. These process steps create a clean hot gas suitable for use in various apparatus, such as, steam boilers, gas turbines, and cement kilns.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: February 22, 2011
    Inventor: Joseph Carl Firey
  • Patent number: 7891114
    Abstract: This invention pertains to a bio-mass processing system, and method of processing waste bio-mass, wherein one or more mixers mixes a bed of bio-mass material such as manure at substantially any and all locations in a defined length and width portion of the bed, in a dryer. Heated air percolates upwardly through the bed. Separation apparatus separates a relatively dryer fraction of the bio-mass material from the dryer. The separated finished product from the dryer is optionally fed to a boiler where the dried bio-mass material is burned. Heat of combustion from the boiler is used as dryer heat for drying the bio-mass feed material in the dryer. Excess heat is optionally used to produce steam, which powers a turbine, which powers an electrical generator. Residual ash from the combustion process comprises about 2% by weight of the solids content of e.g. a feed stream coming into the dryer.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: February 22, 2011
    Assignee: Skill Associates, Inc.
    Inventor: Wallace R. Lasonde
  • Patent number: 7874140
    Abstract: A method of and a power plant for generating power by combusting carbonaceous fuel with substantially pure oxygen, and a method of modifying a process of generating power by combusting carbonaceous fuel from combusting the fuel with air to combusting the fuel with substantially pure oxygen.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: January 25, 2011
    Assignee: Foster Wheeler North America Corp.
    Inventors: Zhen Fan, Andrew Seltzer, Horst Hack
  • Patent number: 7837962
    Abstract: A method of reducing particulate matter and mercury emissions in a combustion flue gas includes, in an exemplary embodiment, combusting a fuel resulting in generation a flue gas flow, cooling the flue gas flow within a duct, positioning a flow conditioning apparatus within the duct, enhancing a reaction rate of the mercury and carbon-containing fly ash particles by directing the flue gas flow through the flow conditioning apparatus to mix the carbon-containing fly ash particles and mercury within the flue gas flow and to facilitate at least one of oxidation of the mercury and binding the mercury to the carbon-containing fly ash particles, collecting a portion of the carbon-containing fly ash particles in the flow conditioning apparatus, and directing the flue gas flow to a particulate collection device to remove the remaining portion of the fly ash particles from flue gas flow.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: November 23, 2010
    Assignee: General Electric Company
    Inventors: Boris Nikolaevich Eiteneer, Robert Warren Taylor, Vitali Lissianski, James Easel Roberts
  • Publication number: 20100275823
    Abstract: A Pyrogen waste treatment and electrical generation combination of systems which is comprised of a combination of pyrolytic combustion systems with a feed stock and a means to convey and pre-treat the feedstock to the combustion system, where the combustion system produces a syngas; co-generators produce hot water and electrical power; and where the co-generator systems may be powered from syngas. It features a means to transfer the syngas to the cogeneration hot water and electrical power generator; a means to transfer hot water and electricity from the cogeneration hot water and electrical power generator to the pyrolytic combustion system; and a means to transfer generated electricity from the co-generator to an end user. It provides significant benefits compared to other devices and is used for a symbiotic and synergistic combination of essentially two systems—a pyrolytic combustion system and a cogeneration electrical power generator.
    Type: Application
    Filed: May 3, 2010
    Publication date: November 4, 2010
    Inventor: Terry J Pahls
  • Publication number: 20100199894
    Abstract: The present invention provides a burner which uses solid fuels, especially waste plastic fuels. Burner size is minimized by having multiple combustion chambers concentrically located around a rotating screw conveyor. Heat efficiency is improved by having air passages disposed around the combustion chambers, thus preheating air for the combustion prior to its delivery to the combustion chambers, while simultaneously thermally insulating the combustion chambers against the environment. Waste plastic is transported from a fuel hopper to the combustion chambers by a rotating screw conveyor having the spiraling auger blades. Speed of screw conveyor rotation controls the consumption of waste plastic and, thus, the amount of thermal energy generated in the burner.
    Type: Application
    Filed: February 6, 2009
    Publication date: August 12, 2010
    Inventors: William Hunkyun Bang, Thomas Anthony Patti
  • Patent number: 7753678
    Abstract: Apparatus for batch processing source material into charcoal in a battery of kilns, each of which use forced convection of process gases through the source material to shorten the process cycle time, and all of which use an external combustor to burn the process waste gases from each kiln to provide the primary source of applied energy for the process.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: July 13, 2010
    Assignee: Nucor Corporation
    Inventors: Gerald A. Teeter, Jared S. Kaufman, John L. Pressly, Christopher Adam Goebel, Paul David Debski
  • Publication number: 20100116182
    Abstract: Featured is a resistance heater air heating device that includes a low thermal conductivity enclosure and an electric resistance heater that is disposed within such an enclosure. In more particular embodiments, such an enclosure is configured so as to provide a high surface area which in combination with the heater heats the air passing through the enclosure. In more particular embodiments, the ceramic enclosure is configured and arranged so as to include a through aperture in which is disposed the electric resistance heater and through which the air flows along the length of the through aperture.
    Type: Application
    Filed: September 18, 2009
    Publication date: May 13, 2010
    Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Thomas A. Chodacki, Louis Castriotta, III, Michael W. Tanguay
  • Patent number: 7708964
    Abstract: Pollution control substances may be formed from the combustion of oil shale, which may produce a kerogen-based pyrolysis gas and shale sorbent, each of which may be used to reduce, absorb, or adsorb pollutants in pollution producing combustion processes, pyrolysis processes, or other reaction processes. Pyrolysis gases produced during the combustion or gasification of oil shale may also be used as a combustion gas or may be processed or otherwise refined to produce synthetic gases and fuels.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: May 4, 2010
    Assignee: Battelle Energy Alliance, LLC
    Inventors: Richard D. Boardman, Robert A. Carrington
  • Publication number: 20100058960
    Abstract: A furnace system for heating a poultry brooder house includes a firebox for burning biomass fuel, and a grate within the firebox for burning the biomass fuel thereon. A distributor assembly may positioned within the firebox and is located directly above the grate. The distributor assembly includes a distributor plate having a plurality of apertures therethrough, and a distributor arm above the distributor plate that is movable relative to the distributor plate to cause biomass fuel supported on the plate to pass through the apertures and fall onto the grate. The furnace system may include a hopper assembly that defines a well for receiving a volume of biomass fuel for delivery to the grate or to the distributor plate.
    Type: Application
    Filed: August 14, 2009
    Publication date: March 11, 2010
    Applicant: WAYNE/SCOTT FETZER COMPANY
    Inventors: Jimmie C. Raley, Jeremy S. Lord, Timothy A. Mann, Gerald D. Stimson, Anthony B. Tranquill, Charles E. Wood, Donald W. Cox
  • Patent number: 7670575
    Abstract: The method and furnace according to the invention enable a continuous processing of anode slime and are particularly suited to be connected to a process where anode slime is treated by hydrometallurgic methods after roasting. In the method according to the invention, the slime containing valuable metals and selenium is dried, roasted, sulfatized and cooled. The method includes steps to be carried out in succession, in continuous operation, so that the slime forms a slime layer on the conveyor and is conveyed to be treated in successive drying, roasting, sulfatizing and sulfuric acid removal and cooling units.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: March 2, 2010
    Assignee: Outotec Oyj
    Inventors: Olli Järvinen, Pekka Taskinen, Olli Hyvärinen, Henri Virtanen, Leo Lindroos
  • Publication number: 20090293782
    Abstract: A method of generating power by oxyfuel combustion. Carbonaceous fuel and oxidant gas are fed into a furnace. In a first operating mode, the oxidant gas includes a stream of substantially pure oxygen conveyed from an oxygen supply for combusting the fuel with the oxygen to produce exhaust gas including mainly carbon dioxide and water. The exhaust gas is discharged from the furnace and is divided into a recycling portion and an end portion. The recycling portion is recycled to the furnace. Heat is transferred from the end portion to the stream of substantially pure oxygen by circulating a liquid heat transfer medium in a passage between an exhaust gas cooler and an oxygen heater.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 3, 2009
    Applicant: FOSTER WHEELER ENERGIA OY
    Inventors: Timo Eriksson, Zhen Fan, Ossi Sippu
  • Publication number: 20090249988
    Abstract: An oxycombustion apparatus comprising an air separation unit (2) in which oxygen (10) is produced optionally by cryogenic distillation, an oxycombustion boiler (1), means for sending the oxygen and a fuel (14) to the oxycombustion boiler, means (19) for recovering carbon dioxide-containing flue gases from the oxycombustion boiler, and means (7) for purifying the flue gases in order to extract carbon dioxide therefrom, the air separation unit being provided for producing oxygen to be sent to the boiler having a purity not exceeding 95 mol %.
    Type: Application
    Filed: August 25, 2008
    Publication date: October 8, 2009
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude et l'Exploitation Des Procedes Georges Claude
    Inventor: Benoit Davidian
  • Patent number: 7552688
    Abstract: Disclosed are systems and processes for drying livestock manure to produce suitable end-products such as animal bedding and soil conditioner or amendments. Dried manure made by the process can be recycled into the burner. Exhaust gases from the dryer and cyclone can be cleansed of particulate and/or used to heat and aerate trenches and/or lagoons used to digest wet manure. Biomass may also be used as fuel in the burner. Biomass may also be blended with wet manure to decrease water content prior to being dried in the dryer.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: June 30, 2009
    Inventor: John H. Lundell
  • Patent number: 7533620
    Abstract: An installation for combustion (1) of carbon-containing solids includes an oxide reducing reactor (2), a first cyclone (5), a recuperator (6), an oxidation reactor (3), a second cyclone (4), wherein flows an oxide which is reduced then oxidized in each of the two reactors (2 and 3). In the installation, the fuel is ground before being introduced into the reduction reactor (3). The reduced size of the solid fuel particles enables more complete and faster combustion and enables almost 100% production of fly ashes which are separated from the circulating oxides.
    Type: Grant
    Filed: January 2, 2004
    Date of Patent: May 19, 2009
    Assignee: ALSTOM Technology Ltd
    Inventors: Jean-Xavier Morin, Corinne Beal
  • Patent number: 7531153
    Abstract: A method for reducing an amount of mercury in flue gases generated by the combustion of coal is provided. The method includes combusting a quantity of coal and a quantity of air within a primary combustion area such that a fly ash containing carbon and elemental mercury is formed within the flue gases, supplying air to the primary combustion area such that a portion of the air is channeled to an overfire air burnout area downstream from the primary combustion area to facilitate increasing an amount of the carbon content in the fly ash, cooling the flue gases to facilitate oxidizing the elemental mercury using the carbon content in the fly ash, and injecting sorbent into the flue gases to facilitate further reducing the amount of mercury in the flue gases.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: May 12, 2009
    Assignee: General Electric Company
    Inventors: Vitali Victor Lissianski, Peter Martin Maly, William Randall Seeker
  • Publication number: 20090078177
    Abstract: Methods and apparatus for pollution control which are well suited for use in a coal power plant are described. Ash is collected and injected into the flue gas stream at a location upstream of a cooling module. The ash acts as an absorbent and/or reactant material onto which condensate may condense. By re-introducing ash to keep the condensation forming wet areas within the system, lower cost materials which are less corrosion resistant than needed for wet operating conditions can be used. Mercury recovery and SO3 removal is facilitated by the cooling process and re-introduction of collected ash. Activated carbon and/or an alkali absorbent material may be added. Use of a dry ESP and/or fabric filter as opposed to a wet ESP for particulate collection leads to cost benefits. Energy recovered by the cooling of the flue gas may be re-used to heat turbine condensate leading to improved energy efficiency.
    Type: Application
    Filed: September 25, 2007
    Publication date: March 26, 2009
    Inventors: Song Wu, Takanori Nakamoto, Takashi Muramoto, Udo Zirn, Toshio Katsube, Hirofumi Kikkawa
  • Patent number: 7504081
    Abstract: A method for reducing an amount of mercury in flue gas is provided. The method includes injecting a quantity of coal having a fineness of less than 70%<200 mesh and greater than or equal to 50%<200 mesh. The quantity of coal is combusted in a quantity of air such that at least carbon-containing fly ash and mercury are formed. Mercury is oxidized using at least the carbon-contain fly ash.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: March 17, 2009
    Assignee: General Electric Company
    Inventors: Vitali Victor Lissianski, Peter Martin Maly, William Randall Seeker
  • Publication number: 20090007826
    Abstract: An environmentally-safe, disposable, and combustible charcoal-based portable heat source includes a first combustible, inner, vertical, upright chimney structure, and a second combustible, outer, vertical, upright wall structure surround said chimney structure and an inner chimney flue defined by said chimney structure for receiving air for igniting and burning said charcoal-based heat source. An outer chimney flue defined by the outer wall of said first combustible, inner, vertical, upright chimney structure and the inner wall of said second combustible, outer, vertical, upright, wall structure, said outer chimney for exhausting fumes from said heat source. A removable inner chimney insert provides structural support for the heat source. An ignition ring establishes a sustained ignition to uniformly ignite the charcoal-based fuel.
    Type: Application
    Filed: March 17, 2008
    Publication date: January 8, 2009
    Inventors: David Wares, Felipe Correra, Tom McDowall, Philip Leveridge
  • Publication number: 20090000531
    Abstract: A multi-step process is provided in which waste material is processed in two or more steps. Specifically, an earlier step of the process heats the waste material at a first temperature. This results in a release of vapors for materials having a boiling point that is lower than the first temperature. A subsequent step of the process heats some or all of the remaining waste material at a second temperature, which is preferably higher than the first temperature. The subsequent heating results in a release of additional vapors for those materials having a boiling point that is lower than the second temperature. A system configured to carry out the process is also disclosed.
    Type: Application
    Filed: September 9, 2008
    Publication date: January 1, 2009
    Applicant: Rineco Chemical Industries, Inc
    Inventors: John P. WHITNEY, Carl Wikstrom
  • Patent number: 7421959
    Abstract: A multi-step process is provided in which waste material is processed in two or more steps. Specifically, an earlier step of the process heats the waste material at a first temperature. This results in a release of vapors for materials having a boiling point that is lower than the first temperature. A subsequent step of the process heats some or all of the remaining waste material at a second temperature, which is preferably higher than the first temperature. The subsequent heating results in a release of additional vapors for those materials having a boiling point that is lower than the second temperature. A system configured to carry out the process is also disclosed.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: September 9, 2008
    Assignee: Rineco Chemical Industries, Inc.
    Inventors: John P. Whitney, Carl V Wikstrom
  • Publication number: 20080149013
    Abstract: There is provided an apparatus for manufacturing solid fuel using combustible waste, to manufacture RPF or RDF by melting general waste and combustible waste as well as the waste plastics, such as waste tires, waste vinyl and PET bottles, by using heat generated in a combustion apparatus.
    Type: Application
    Filed: December 9, 2007
    Publication date: June 26, 2008
    Applicant: JIN ENERGY COL, LTD.
    Inventor: YOUNG JUNG KIM
  • Patent number: 7320288
    Abstract: A steam-generating combustion system includes an oxygen enriched gas provided as at least part of an oxidant stream. A combustion chamber receives and combusts a fuel in the oxidant stream and generate steam. The combustion chamber generates flue gas having a flue gas volume which is smaller than a volume of flue gas generated by the combustion chamber when operated with air as the oxidant stream. A flue gas pollutant control system receives the flue gas from the combustion chamber and reduces at least one of particulate matter, SOx, NOx, and mercury. The reduction in flue gas volume allows the implementation of much smaller pollutant control equipment, since the size of the pollutant control units is mainly based on the volume or mass flow rate of flue gas to be treated. Moreover, the system including oxygen-enriched gas in the oxidant will lead to concentrated levels of the pollutants in the flue gas.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: January 22, 2008
    Assignee: American Air Liquide, Inc.
    Inventors: Ovidiu Marin, Scott Macadam, Erwin Penfornis, Fabienne Chatel-Pelage
  • Patent number: 7302897
    Abstract: A system for disposing of municipal solid waste provides commercially-available equipment that is modified to initially remove identifiable unwanted components from the waste, and then chop the waste into small pieces of a size suitable for handling, separation and combustion. The moisture content of the waste is reduced in a closed system by passing dry air through the waste in a confined space to absorb moisture and produce moist air, which is then dehumidified via refrigeration equipment. The dehumidified air is recycled through the waste repeatedly through the closed system until the water content has reached the predetermined amount. The waste is stored in a bunker for later use or is immediately combusted in a two-step process by first gasifying the dried waste to produce combustible syngas and then immediately or later combusting the gas in a gas turbine or other engine to produce electricity that is partly used to power the process and partly sold commercially.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: December 4, 2007
    Inventors: Richard B. Pallett, Warren Hyland
  • Patent number: 7188571
    Abstract: A method for the processing of carbon-containing polymeric material, the method comprising the steps of: Introducing the carbon-containing polymeric material into the retort of a retort assembly which includes a retort disposed at least partially within the combustion chamber, the retort containing an inert heat-transfer medium and an agitation means, wherein the agitation means is adapted to agitate the inert heat transfer medium and the carbon containing polymeric material, the combustion chamber having heating means to indirectly heat the rotatable retort; Heating the carbon-containing polymeric material and the inert heat transfer medium to cause such to at least partially decompose; Discharging processed carbon-containing polymeric material from the retort.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: March 13, 2007
    Assignee: Tox Free Solutions Limited
    Inventor: Sergio Nusimovich
  • Patent number: 7128005
    Abstract: Disclosed is a non-polluting high temperature combustion system which comprises in combination a graphite-lined combustion chamber fueled by a controlled-burn thermite fuel, wherein the fuel burns a temperature of up to 6000 degrees Fahrenheit, wherein the resulting gases are essentially pollution free; the system also include a means of passing a substrate into and out of the combustion chamber and/or a turbine powered by gases from the combustion products, means of injecting a working fluid into the combustion gases upstream of the turbine, a heat recovery means that comprises a geo-thermal hot rock bed, a steam generator utilizing heat from the geo-thermal hot rock bed, a working fluid separation means which comprises a condenser, and means of liquefying the remaining gases for commercial use.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: October 31, 2006
    Inventors: Greg Carter, Jr., Greg Carter, Sr.
  • Patent number: 7063027
    Abstract: A self-contained, transportable air curtain incinerator for combustion of low calorific value waste comprises a transportable frame supporting a firebox, a fuel supply tank, a fuel-burning electric power generator in communication with the fuel supply tank, at least one fuel-burning burner unit in communication with the fuel supply tank for directing a flame into a combustion chamber defined by the firebox, and an air curtain blower powered by the generator for providing a sheet of high velocity air flow generally across an open top of the firebox.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: June 20, 2006
    Assignee: Air Burners LLC
    Inventor: Brian M. O'Connor