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| Number | Title | Issue Date |
| 7363867 | Method and apparatus for adding reducing agent to secondary overfire air stream A combustion boiler for burning fuel and producing heat to generate steam. A method of minimizing discharging of nitrogen oxides from a combustion boiler comprising the steps of spraying a reducing agent into an overfire air stream and supplying the overfire air str... | 04/29/2008 |
| 7331119 | Apparatus and method thermally removing coatings and/or impurities An apparatus for thermally de-coating and/or drying coated and/or contaminated materials comprises a support and an oven pivotally mounted to the support. The oven has charging portion for receiving material to be treated and a changeover portion. Incorporated withi... | 02/19/2008 |
| 7249946 | Thermal generator and combustion method for limiting nitrogen oxides emissions by re-combustion of fumes The invention relates to a thermal generator comprising a furnace tube (2) wherein a fuel is burnt, recombustion means (14, 15) for reducing the nitrogen oxides content present in said fumes and means (3) for recovering the heat of the fumes res... | 07/31/2007 |
| 7194962 | Versatile rapid thermal process oven A versatile oven for converting carbon based natural resources and waste material to hydrocarbon vapor and carbon char utilizing rapid thermal processing and having the capability of utilizing a portion of the relatively inexpensive carbon based material being proce... | 03/27/2007 |
| 7128004 | Supplying apparatus for supplying combustible material, a gasification apparatus for gasifying combustible material and method for gasifying combustible material A supplying apparatus supplies a combustible material capable of enhancing the sealing effects of a supplying system for supplying a combustible material, such as combustible wastes, to a fluidized-bed chamber, stably supplies a combustible material having an undefi... | 10/31/2006 |
| 7063097 | In-situ gas blending and dilution system for delivery of dilute gas at a predetermined concentration Apparatus and method for delivery of dilute active fluid, e.g., to a downstream active fluid-consuming process unit of a semiconductor manufacturing plant. The delivery system includes an active fluid source, a diluent fluid source, a fluid flow metering device for ... | 06/20/2006 |
| 7059256 | Combustion device The invention relates to an arrangement (1) for the combustion of granular, solid fuel, for example wood-flour pellets, chips and the like, comprising a preferably horizontal combustion chamber (16), a dispensing unit (3) for feeding the fuel in... | 06/13/2006 |
| 7047891 | Overfire air port and furnace system An Overfire Air (OFA) port design and method for use in a furnace system is disclosed. The OFA port design effectively reduces the amount of harmful pollutants emitted into the atmosphere upon discharge from an associated furnace. ... | 05/23/2006 |
| 7047893 | Pollution abatement incinerator system As taught herein, an incinerator system that directly eliminates the undesirable and harmful pollution of any gases vented or exhausted to open air. The system utilizes a fuel injector system that is used to dispense gaseous or atomized fuel of almost any type and i... | 05/23/2006 |
| 7032525 | Energy efficient pyrolytic processing oven A method and apparatus of converting waste materials into combustible vapor and char utilizing an energy efficient pyrolytic processing oven that eliminates the complex mechanisms usually associated with these systems for heating and transporting the waste material ... | 04/25/2006 |
| 7004086 | Injection of overfire air through the upper furnace arch for penetration and mixing with flue gas The boiler nose or arch of a furnace projects into the upwardly flowing flue gas to form a restricted passage. Overfire air is introduced into the cavity or plenum of the boiler nose and flows to injection ports along the inclined surface of the boiler nose to provi... | 02/28/2006 |
| 6959654 | Gasifier system and method A solid fuel fed combustor method having a first chamber portion with an inlet feeding a metered amount of a solid fuel to a first burner stage having a first traveling conveyor firebelt. A metered amount of air is introduced in progressively increasing proportions ... | 11/01/2005 |
| 6938561 | Device for producing a rotating flow A device for producing a rotating flow in a rectangular flow duct which has a flue-gas outlet of an incineration plant, in particular of a garbage incineration plant, and a transition region from a combustion chamber of the incineration plant to the flue-gas outlet.... | 09/06/2005 |
| 6938563 | Grate furnace A grate furnace with a grate includes grate steps made of grate elements lying next to one another. Every second grate step in the longitudinal direction of the grate can be driven for carrying out stoking movements and the grate steps in each case lying therebetwee... | 09/06/2005 |
| 6789487 | Fluidized bed incinerator and combustion method in which generation of NOx, CO and dioxine are suppressed A fluidized bed incinerator having a combustion furnace includes first to fourth combustion sections. Fuel is supplied to the first combustion section and an combustion exhaust gas is exhausted after the fourth combustion section. First to fourth airs are supplied t... | 09/14/2004 |
| 6701855 | Process for the pyrolysis of medical waste and other waste materials A process for the pyrolysis of waste materials, particularly medical waste, is provided. In the pyrolysis process, waste material is placed in a sealed container. The sealed container is placed in a load chamber and the waste material is subjected to pyro... | 03/09/2004 |
| 6691628 | Method and apparatus for thermal processing of powder raw materials In the manufacture of cement clinker from cement raw meal, sulfide-containing raw materials or raw materials with a high TOC (total organic carbon) level can be used for cement manufacture, which are uncontrollably incompletely burned in the upper cyclone... | 02/17/2004 |
| 6655303 | Furnace A furnace consists of at least one wall-mounted burner tilted downward for feeding air-fuel mixture and of a prism-shaped ash hopper. Slopes of the walls of lower combustion chamber region define the slotted mouth of ash hopper. The bottom airflow device ... | 12/02/2003 |
| 6604474 | Minimization of NOx emissions and carbon loss in solid fuel combustion This invention discloses the synergistic integration of solid fuel combustion, low NOx control technologies (such as Low NOx Burners, reburning and Advanced Reburning) with partial in-duct gasification of coal or other solid fuels. For partial gasificatio... | 08/12/2003 |
| 6474251 | Cremating method and cremator The invention concerns a method for cremating human or animal bodies which consists in generating from a wall (10) of the combustion chamber (3), a turbulence in the form of a vertical displacement above the body (2) and in injecting the air required for ... | 11/05/2002 |
| 6453830 | Reduction of nitrogen oxides by staged combustion in combustors, furnaces and boilers Nitrogen oxides, NOx, resulting from the excess air combustion of solid fuels in a combustor or burner in a furnace are reduced. By introducing sufficient additional fuel to the combustion gases in the furnace downstream of the primary combusti... | 09/24/2002 |
| 6363868 | Combustors and burners with high turndown ratio Various smoke and combustible gas combustors (200, 300) are disclosed, and also disclosed are systems (100, 200) combining gas combustor with inventive burner. Such a burner (100 or 100') provides combustion of a particulate fuel such as sawdust, and many... | 04/02/2002 |
| 6336415 | Method for the heat treatment of solids In a process for the thermal treatment of solid materials (3), in particular refuse, in which the solid materials (3) are burnt/gasified or pyrolized in a first step (5) with a lack of oxygen, and then, in an afterburning zone (14), the flue gases (6) fro... | 01/08/2002 |
| 6324999 | Incinerator for removing noxious substances The present invention provides an incinerator for removing toxic substances contained in a flue gas. That is, there is here disclosed an incinerator for removing toxic substances in which a removal section for removing the toxic substances generated from ... | 12/04/2001 |
| 6318277 | Method for reducing NOx emissions with minimal increases in unburned carbon and waterwall corrosion A method and apparatus for reducing NOx emissions in a furnace having a main combustion zone with a waterwall and apparatus for supplying main combustion air and fuel to the main combustion zone, also reduces unburned carbon and waterwall corrosion in the... | 11/20/2001 |
| 6305302 | Waste tire gasification in a negative ambient pressure environment An apparatus for providing waste tire gasification in a negative ambient pressure environment includes a gasification unit, a combustion unit, and a connection pipe. The gasification unit includes a gasification chamber, at least one air vent, at least on... | 10/23/2001 |
| 6286443 | Method for treating combustibles by slagging combustion The present invention relates to a method for treating combustibles by slagging combustion, such as municipal wastes, plastic wastes, sewage sludges, or automobile wastes. Combustibles and oxygen-containing gas are supplied to a slagging combustion furnac... | 09/11/2001 |
| 6283048 | Swirling-type melting furnace and method for gasifying wastes by the swirling-type melting furnace The present invention relates to a swirling-type melting furnace for gasifying combustible wastes and/or coal, and a method of gasifying wastes by the swirling-type melting furnace. In the swirling-type melting furnace (5), gaseous materials supplied to a... | 09/04/2001 |
| 6280695 | Method of reducing NOx in a combustion flue gas Methods are provided for decreasing the amount of nitrogen oxides released to the atmosphere as a component of combustion emissions. The methods are carried out by forming a combustion flue gas in a combustion zone, the combustion flue gas including nitro... | 08/28/2001 |
| 6269755 | Burners with high turndown ratio Various burner configurations for combustion of a particulate fuel such as sawdust, and many types of varying moisture content biomass fuels such as poultry litter. The burners exhibit a high turndown ratio. the burners include a housing defining an uprig... | 08/07/2001 |
| 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 |
| 6258336 | Method and apparatus for NOx reduction in flue gases In a furnace having a primary combustion zone for combustion of a fuel and oxidant, an in-furnace method for reducing nitrogen oxides in combustion products generated in the primary combustion zone in which at least one fluid fuel selected from the group ... | 07/10/2001 |
| 6250236 | Multi-zoned waste processing reactor system with bulk processing unit A preferred waste treatment system and method employs multiple reactor zones for processing heterogeneous waste. In one embodiment, the reactor system (10) includes the following components: first (12) and second (14) solid waste feed subsystems; a liquid... | 06/26/2001 |
| 6237587 | Woodburning fireplace exhaust catalytic cleaner Pollutants in the exhaust from wood burning in a fireplace are removed by positioning reticulated foam between the smoke chamber and the flue. The reticulated foam is a three dimensional latticework of interconnected ligaments forming a porous, open-celle... | 05/29/2001 |
| 6216610 | Process and device for incineration of particulate solids A process for the incineration of particulate solids, especially biological waste matter with low caloric value, feeds the solids into a combustion chamber of a furnace together with a sub-stoichiometric amount of fresh air to control the rate of combusti... | 04/17/2001 |
| 6213118 | Oven vent tube A vent tube has an open end adapted to communicate with an oven chamber. A catalyst is retained in the vent tube by two sets of abutments. In one embodiment, the abutments are in the form of tabs. The tabs are lanced from the wall of the vent tube and sla... | 04/10/2001 |
| 6206685 | Method for reducing NOX in combustion flue gas using metal-containing additives Various methods for decreasing the amount of nitrogen oxides released to the atmosphere as a component of combustion gas mixtures are provided. The methods specifically provide for the removal of nitric oxide and nitrogen dioxide (NOx) from gas... | 03/27/2001 |
| 6202573 | Apparatus and process for carbon removal from fly ash A new apparatus and process for the removal of carbon fly ash, whereby carbon removal occurs through oxidation. The ignition of the carbon is accomplished by bulk heating and impingement of a suspended bed of fly ash by a heated oxidizing gas stream, and ... | 03/20/2001 |
| 6199491 | Refuse incinerating oven A refuse incinerating oven includes a refuse loading car, and a furnace body with lower and upper combustion chambers. The car is conveyed through the furnace body such that refuse loaded on the car can be ignited in the lower combustion chamber. The comb... | 03/13/2001 |
| 6199494 | Method of improving the performance of a cyclone furnace for difficult to burn materials, and improved cyclone furnace thereof The firing performance of a radial, scroll, or vortex cyclone furnace can be improved when firing difficult to burn materials having a relatively low heating value or a relatively high moisture content, such as sub-bituminous and lignite coals. This can b... | 03/13/2001 |
