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| Number | Title | Issue Date |
| 7278823 | Draft inducer blower A draft inducer blower for high efficiency furnaces, including a blower housing which facilitates maximum air flow efficiency through the blower housing while having an overall radial dimension which conforms to the industry standard arrangement of mounting holes on... | 10/09/2007 |
| 6938562 | Apparatus for waste gasification A gasification system that includes a gasification reactor chamber having perforated conduits or an inner lining that increases the exposed surface area of waste materials to gasification conditions, thereby decreasing gasification temperature, time, and cooling per... | 09/06/2005 |
| 6807915 | Method of carbonization of organic waste and apparatus therefor The method of carbonization of organic waste according to the present invention comprises the steps of supplying organic waste to a dryer, reducing an amount of water in the organic waste by heating with high-temperature gas, supplying the organic waste to a carboni... | 10/26/2004 |
| 6655304 | Mass fuel combustion system An improved mass fuel combustion system can be designed in a variety of embodiments and alternatives, including designs which include independent gas feeds, independent gas pulsing, independently controllable vibration systems and an overall control syste... | 12/02/2003 |
| 6532881 | Method for operating a boiler using oxygen-enriched oxidants A method for operating a boiler using oxygen-enriched oxidants includes introducing oxygen-enriched air, or oxygen and air, in which the oxygen concentration ranges from about 21% to about 100% by volume. Fuel and oxygen-enriched air are introduced into t... | 03/18/2003 |
| 6431095 | Method of improving combustion in a system having a circulating fluidized bed, and a corresponding system The method is applicable to a combustion system of the circulating fluidized bed type which system includes a hearth and a cyclone, and operates using fuel that is inserted into the bottom of the hearth, where a reducing atmosphere is created and where th... | 08/13/2002 |
| 6418865 | Method for operating a boiler using oxygen-enriched oxidants A method for operating a boiler using oxygen-enriched oxidants includes introducing oxygen-enriched air, or oxygen and air, in which the oxygen concentration ranges from about 21% to about 100% by volume. Fuel and oxygen-enriched air are introduced into t... | 07/16/2002 |
| 6293781 | Method of and apparatus for decreasing attack of detrimental components of solid particle suspensions on heat transfer surfaces A method of and apparatus for decreasing attack of detrimental components of solid particle suspensions on heat transfer surfaces in a heat transfer chamber in a fluidized bed reactor. The method includes introducing solid particles into a first chamber, ... | 09/25/2001 |
| 6261090 | Gas combustor and combustor system for combustion of smoke, off gases and other emissions A combustor system provides high temperature, high-dwell combustion of emission products, as from charcoal kilns, with inner and outer combustion chambers. Multiple inlets receive emission products from multiple heat exchangers omnidirectionally extending... | 07/17/2001 |
| 6089169 | Conversion of waste products A facility for reclaiming useful products from solid municipal and hazardous waste uses a rotary kiln to convert the material into a stream of inorganic ash and a stream of gaseous combustion products. The stream of combustion products passes in heat exch... | 07/18/2000 |
| 6067916 | Process and device for producing and utilizing gas from waste materials In a process for gasifying and burning waste materials, the waste materials are introduced into an incinerator (1) and end up on a burning grate (6) to which combustion air is conducted through various undergrate forced draft chambers (8a to 8e). In the f... | 05/30/2000 |
| 5826521 | Method for reducing the emissions produced by incinerating waste A method and installation for reducing emissions during the incinerating of waste results from a combustion chamber, a return situated downstream of the combustion chamber for returning a portion of a flue gas to the combustion chamber in a continuous cyc... | 10/27/1998 |
| 5791266 | Combustion apparatus for highly energetic materials The specification describes a system for the thermal treatment of energetic materials which generate a tremendous volume of gaseous products upon combustion. The system includes a containment system which maintains an interface between hot exhaust gas pro... | 08/11/1998 |
| 5406579 | Dynamic seal A method and apparatus for limiting the passage of a gas such as air through an opening, particularly an opening through which solid material passes, by providing a sealing chamber in advance of the entrance to the low pressure chamber having a large plen... | 04/11/1995 |
| 5325795 | Mobile material decontamination apparatus A technique for decontaminating material, including disposing a grid network of perforated pipes on a base, and covering the same with contaminated soil. A barrier layer is laid on the contaminated material and provided with a vent port coupled to a vapor... | 07/05/1994 |
| 5326254 | Fog conditioned flue gas recirculation for burner-containing apparatus The disclosure is directed to a burner-containing apparatus, such as a boiler or a furnace, having reduced noxious emissions. A burner receives input air and has an exhaust for exhausting flue gases. A flue gas recirculation system is provided for recircu... | 07/05/1994 |
| 5241916 | Procedure for supplying combustion air and a furnace therefor The procedure for supplying combustion air during grate firings, in which the primary combustion air is introduced into the fuel, and secondary combustion air is introduced directly into the flow of exhaust gas, and in which, in addition, some of the exha... | 09/07/1993 |
| 5156097 | Combustion apparatus Combustion apparatus comprises a combustion chamber for effecting primary combustion of combustible material charged thereinto, an exhaust conduit for exhaust gases emitted by the primary combustion, primary air inlet means for directing primary air into ... | 10/20/1992 |
| 5154599 | Method for apparatus for combusting fuel in a combustion chamber To avoid high NOx emissions, the fuel is oxidized with an extremely high exhaust gas recirculation ration substantially without flames and without pulsations.... | 10/13/1992 |
| 5044287 | Method of controlling combustion in a fluidized bed furnace A method for controlling combustion in a furnace into which combustible material, e.g., urban refuse, industrial waste, and a controlled quantity of combustion air are fed. The furnace includes a mixing/stirring region where unburnt gas and secondary comb... | 09/03/1991 |
| 4984524 | Technique for controlling the combustion of fuel having fluctuating thermal values The combustion of fuel having a highly fluctuating thermal value is controlled to permit optimization of air supply and reduction of waste gas impurities. The fuel passes through a combustion chamber having a degassing and evaporation zone, a primary comb... | 01/15/1991 |
| 4932335 | Coal combustion with a fluidized incineration bed According to a process for the combustion of organic substances, such as domestic or industrial waste and the like, in a fluidized incineration bed (1) at a mean combustion temperature of 800° C., the flue gased emitted by the fluidized bed (1) are heate... | 06/12/1990 |
| 4909161 | Anti-pollution and anti-germ system A filter apparatus for use with smokestacks, comprising: a smoke collector mounted opposite and spaced from the chimney outlet to collect the smoke emitted from the chimney. A turbine draws the smoke from the collector and feeds it to a circuit where the ... | 03/20/1990 |
| 4903615 | Atmospheric gas heating unit with external recycling of exhaust gas to reduce nOx An improved burner head for a forced air furnace is disclosed which includes a burner tube fitted with gas nozzles, air flow openings, and a flame tube. At least one radial opening is provided between the end of the burner tube and an end of the flame to ... | 02/27/1990 |
| 4895082 | Technique for controlling the combustion of fuel having fluctuating thermal values The combustion of fuel having a highly fluctuating thermal value is controlled to permit optimization of air supply and reduction of waste gas impurities. The fuel passes through a combustion chamber having a degassing and evaporation zone, a primary comb... | 01/23/1990 |
| 4762074 | Process for the incineration of combustible materials A process and plant for improving the incineration of fuels, in order to reduce the production of noxious gases, particularly nitrogen oxides (NOX) and also to reduce the emission of dioxines and furans when incinerating solid or liquid wastes ... | 08/09/1988 |
| 4734030 | Apparatus for the treatment of flue gases An apparatus for the treatment of flue gases is provided having an upright vessel with a generally cylindrical wall, two spaced cooling circuits, the inner surface of the wall, an inlet port for introducing flue gases into the vessel, a fan for forcing th... | 03/29/1988 |
| 4699071 | Nitrogen oxide reduction in furnaces A method and apparatus for reducing the NOx content of hot stack (exhaust) gas produced by a furnace burning a fossil fuel, comprising recycling part of said NOx -containing stack gas, in admixture with cold fresh air, back into the ... | 10/13/1987 |
| 4656972 | Method and apparatus for reducing NOx in exhaust gases from fluidized-bed boiler Temperature of exhaust gases from a fluidized-bed boiler is lowered by means of heat exchange and dust entrained in the exhaust gases is efficiently collected by a dust collector. Part of the gases discharged from the dust collector are mixed with heated ... | 04/14/1987 |
| 4526112 | Heat exchanger method and apparatus Exhaust gas treatment method and apparatus extract heat from an exhaust gas by operating in a water-condensing mode which allows more heat to be recovered, removes particulate matter and condensed acid from the exhaust gas, and washes heat exchange surfac... | 07/02/1985 |
| 4509437 | Process for cleaning of flue gases of a power plant with the aid of a coal dust burning flame and apparatus for carrying out the process In the process for cleaning of flue gases of a power plant boiler, the flue gases are dust filtered at first and then wet desulfurized. By the wet desulfurization the flue gases are cooled down and have to be reheated before they are fed to the stack of t... | 04/09/1985 |
| 4509435 | Waste material incineration system and method A waste material incineration system (10) and method of combusting waste material is provided wherein system (10) includes a longitudinally directed furnace (14) having a first combustion zone (42) and a second combustion zone (44). Waste material or othe... | 04/09/1985 |
| 4483256 | Biomass gasifier combustor system and components therefor An improved biomass gasifier combustor system including a furnace, a screw feeder system for feeding a biomass fuel to the furnace and a venturi eductor system adapted for drawing a gaseous combustion product from a combustion chamber of the furnace is di... | 11/20/1984 |
| 4458662 | Catalytic stove A catalytic stove comprised of a housing having a fuel-burning chamber and an effluent chamber. The effluent chamber is separated from the fuel-burning chamber by a common wall. The wall is at the top of the fuel burning chamber and is inclined to form a ... | 07/10/1984 |
| 4440098 | Waste material incineration system and method A waste material incineration system (10) and method of combusting waste material is provided wherein system (10) includes a longitudinally directed furnace (14) having a first combustion zone (42) and a second combustion zone (44). Waste material or othe... | 04/03/1984 |
| 4430951 | Process for cleaning of flue gases of a power plant with the aid of a coal dust burning flame and apparatus for carrying out the process In the process for cleaning of flue gases of a power plant boiler, the flue gases are dust filtered at first and then wet desulfurized. By the wet desulfurization the flue gases are cooled down and have to be reheated before they are fed to the stack of t... | 02/14/1984 |
| 4424024 | Bulk curing with solid fuel Apparatus for bulk curing tobacco comprising a barn having a heat exchanger therein defining interior flow paths for heated water and exterior heat exchange surfaces disposed within the curing air flow path within the barn, hot water storage tank unit, a ... | 01/03/1984 |
| 4355601 | Recirculating flue gas fluidized bed heater A fluidized bed boiler system and a manner of operating the same is provided wherein a fluidized particulate bed in which solids are not recycled is utilized. High temperature flue gas is directed to a boiler means. A portion of both the high temperature ... | 10/26/1982 |
| 4335660 | Apparatus and method for flue gas recirculation in a solid fuel boiler A solid fuel boiler or furnace with a flue gas-air mixture introduced into the fuel grate is disclosed. The flue gas is mixed with air such that approximately 30% of the mixture is flue gas. By providing this mixture under the burning fuel bed, the temper... | 06/22/1982 |
| 4332206 | Afterburner for combustion of starved-air combustor fuel gas containing suspended solid fuel and fly ash An afterburner for use as a secondary combustion chamber in a starved-air combustor system to further combust any combustible material in the combustion gas and entrained solid particle material discharge from the combustion chamber of the starved-air com... | 06/01/1982 |
