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| Number | Title | Issue Date |
| 7739968 | System, apparatus and method for combustion of metals and other fuels A system, apparatus and method for the combustion of metals and other fuels are provided. The system can include: a fuel combustion apparatus including a combustor having a combustion chamber for burning ground particles from a fuel charge, and a fuel supply apparat... | 06/22/2010 |
| 7739967 | Pulverized solid fuel nozzle assembly A pulverized solid fuel nozzle assembly 34 includes a fuel feed pipe 38 and a nozzle tip 36 pivotally secured relative to the fuel feed pipe 38. The fuel feed pipe 38 includes a generally cylindrical shell 99 having a round ... | 06/22/2010 |
| 7644669 | Coal fired process heaters An embodiment of the invention consists of a process heater with a radiant section and an overhead convection section, the radiant section having a vertical cylindrical, contiguous, helical, tubular coil, having a bottom process fluid inlet and top process fluid out... | 01/12/2010 |
| 7559286 | Solid fuel combustion apparatus There is a solid fuel combustion apparatus comprising a heated enclosure, a burner connected to the heated enclosure, and a means for providing a solid fuel from a solid fuel reservoir to the heated enclosure. The means for providing a solid fuel aspirates the solid... | 07/14/2009 |
| 7472657 | Apparatus for reducing NOemissions in furnaces through the concentration of solid fuel as compared to air A device for optimizing coal-air proportions entering a furnace is disclosed. The invention generally comprises a burner nozzle having two ends and an outer tube forming a perimeter of the burner nozzle; an entry spool having a rear wall and defining an inlet port a... | 01/06/2009 |
| 7430970 | Burner with center air jet A new burner apparatus and method of combusting fossils fuels for commercial and industrial application is provided wherein the new burner apparatus achieves low NOx emissions by supplying oxygen to the center of the burner flame in as manners so as to cr... | 10/07/2008 |
| 7225746 | Low NOx combustion Combustion of hydrocarbon liquids and solids is achieved with less formation of NOx by feeding a small amount of oxygen into the fuel stream. ... | 06/05/2007 |
| 7216594 | Multiple segment ceramic fuel nozzle tip A solid fuel nozzle tip (201) having at least first (205) and second (207) ceramic shells is provided by the present invention. An inlet end of the first ceramic shell (205) is interconnected to a pulverized solid fuel nozzle (34),... | 05/15/2007 |
| 7198555 | Atomizer cooling by liquid circulation through atomizer tip holder An improved atomizer, in which the liquid to be sprayed is circulated around the nozzle tip to prevent degradation of the liquid in hot environments. The circulation is controlled by a valve, which permits the liquid to circulate even when no liquid is being sprayed... | 04/03/2007 |
| 7168374 | Solid fuel burner, burning method using the same, combustion apparatus and method of operating the combustion apparatus A solid fuel burner using a low oxygen concentration gas as a transporting gas of a low grade solid fuel such as brown coal or the like and a combustion method using the solid fuel burner are provided. The solid fuel burner comprises a means for accelerating ignitio... | 01/30/2007 |
| 7163392 | Three stage low NOburner and method The present invention is an air-staged low NOx burner for firing a gaseous fuel. The burner fires three stages, with the first stage of combustion taking place substantially within a burner cup section of a refractory baffle, the second stage of combustio... | 01/16/2007 |
| 7157069 | Apparatuses and processes for synthesis of carbon nanotubes using inverse diffusion flame Disclosed is an apparatus for the combustion synthesis of carbon nanotubes characterized with the combustor having an oxidizing agent inlet, a fuel inlet and an inert gas inlet, such that the inverse diffusion flame occurs within the combustor, thereby producing car... | 01/02/2007 |
| 7143610 | Method and system for feeding and burning a pulverized fuel in a glass melting furnace, and burner for use in the same A method and system feed and burn pulverized fuel, such as petroleum coke, in a glass melting furnace having burners associated with sealed regenerative chambers which act as heat exchangers. The system supplies the pulverized fuel for melting glass raw materials. T... | 12/05/2006 |
| 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 |
| 7028622 | Apparatus for burning pulverized solid fuels with oxygen A burner assembly combines oxygen and fuel to produce a flame. The burner assembly includes an oxygen supply tube adapted to receive a stream of oxygen and a fuel supply tube arranged to extend through the oxygen tube to convey a stream of fluidized, pulverized, sol... | 04/18/2006 |
| 7014458 | High velocity injection of enriched oxygen gas having low amount of oxygen enrichment Methods and apparatus for combustion of a hydrocarbon fuel in a combustion chamber of a furnace or boiler are presented, the combustion normally using only air as an oxidant, part of the air entering the combustion chamber through one or more burners, and a remainin... | 03/21/2006 |
| 6978726 | Combustion with reduced carbon in the ash Combustion of coal in which oxygen is injected into the coal as it emerges from burner produces ash having reduced amounts of carbon. ... | 12/27/2005 |
| 6968791 | Oxygen-enriched co-firing of secondary fuels in slagging cyclone combustors A method for operating a cyclone combustor having first and second burners in communication with a barrel includes: feeding a stream of a primary fuel and a primary oxidant having a first oxygen concentration into the first burner; feeding a stream of a secondary fu... | 11/29/2005 |
| 6951454 | Dual fuel burner for a shortened flame and reduced pollutant emissions A dual fuel burner including an elongated supply pipe and a gas injector for a boiler furnace having a plurality of peripheral openings around a center opening. The peripheral openings are pitched radially away from the longitudinal axis of the gas injector and also... | 10/04/2005 |
| 6923128 | Circulating fluidized bed reactor A circulating fluidized bed reactor includes a reactor chamber, at least one duct connected with the reactor chamber for drawing off a flue gas having entrained solid particles from the reactor chamber, at least one cyclone separator that is connected with the duct ... | 08/02/2005 |
| 6918255 | Cooling of liquid fuel components to eliminate coking A system for cooling at least one gas turbine liquid fuel component located in a high temperature environment to eliminate coking in the component is disclosed. The system includes a sleeve surrounding the liquid fuel component, a device for providing a current of c... | 07/19/2005 |
| 6883444 | Processes and systems for using biomineral by-products as a fuel and for NOx removal at coal burning power plants Processes and systems are provided that include introducing ammonia liberated from organic waste to a coal burner in a coal burning power plant, preferably for NOx removal at the power plant. The ammonia is preferably either ammonia liberated upon drying ... | 04/26/2005 |
| 6843185 | Burner with oxygen and fuel mixing apparatus An oxygen-fuel combustion system combines oxygen and fuel to produce a flame. The system distributes oxygen to a stream of fluidized, pulverized, solid fuel at various sites before and after ignition. The system is operable to vary the concentration of oxygen in an ... | 01/18/2005 |
| 6790032 | Straight path carbon powder combustion machine A straight path carbon powder combustion machine uses carbon powders as fuel of the combustion machine. The carbon powders enter into the interior of an igniter from carbon powders inlets. Then the carbon powders further enter into a forced firing internal combustio... | 09/14/2004 |
| 6715432 | Solid fuel burner and method of combustion using solid fuel burner According to a burner of the present invention, a stable combustion is obtained in a wide range from a high-load operation condition to a low-load operation condition even in the case of low quality solid fuel such as brown coal. The amount of air supplied fr... | 04/06/2004 |
| 6684796 | Particulate injection burner A burner has a body portion and a main outlet. Fuel and primary oxidant outlets are arranged upstream of the main outlet and are disposed substantially concentrically about the axis of the burner. A chamber inside the body portion provides a place for the... | 02/03/2004 |
| 6659026 | Control system for reducing NOx emissions from a multiple-intertube pulverized-coal burner using true delivery pipe fuel flow measurement A control system for providing improved control over the combustion process of a multiple-intertube pulverized-coal burner that commonly forms a portion of a roof-fired boiler. The system utilizes actual mass fuel flow measurements to calculate corrected,... | 12/09/2003 |
| 6659024 | Powdery fuel combustion apparatus A powdery fuel combustion apparatus disposed on furnace side plane (7) of vertical square body type furnace in which a vertical plane passing through a fuel jetting directional axis (8) does not cross the furnace side plane orthogonally, and thus the work... | 12/09/2003 |
| 6474250 | Nozzle assembly for a pulverized coal burner A mixture of pulverized coal and primary air travels axially through a tubular nozzle body having an outlet end in and surrounded by axially flowing concentric streams of secondary and often tertiary air. In the nozzle body, the coal/air mixture flows thr... | 11/05/2002 |
| 6405664 | Processes and systems for using biomineral by-products as a fuel and for NOx removal at coal burning power plants A process is provided for NOx, removal at coal burning power plants, which includes introducing ammonia that is liberated upon drying a mixture of organic waste, coal combustion by-products, and optionally lime, having a pH of at least 9.5, to ... | 06/18/2002 |
| 6401636 | 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... | 06/11/2002 |
| 6389998 | Device and method for combustion of fuel A fuel selected from powder fuels and liquid fuel is ejected through a fuel ejection pipe having an annular ejection opening; primary air is ejected through primary air-ejecting openings arranged on outer and inner sides of the fuel ejection, to form oute... | 05/21/2002 |
| 6367394 | Pulverized fuel combustion burner A pulverized fuel combustion burner and furnace arrangement has a plurality of air nozzles arranged on a side wall of the furnace for injecting a mixed flow of pulverized fuel and carrier air to establish a flame into the furnace. The plurality of nozzles... | 04/09/2002 |
| 6338304 | Boiler A boiler has a combustion chamber formed by front and rear walls and a side wall extending between the front and rear walls. Plural stages of burners are placed on at least one of the front and rear walls. In the front and rear walls are opposing gas jets... | 01/15/2002 |
| 6298796 | Fine coal powder combustion method for a fine coal powder combustion burner A burner for burning fine coal powder comprising: a fine coal powder nozzle 10 for injecting a mixture of the fine coal powder and air; and air nozzles 11, 12 for injecting air: wherein the sufficient amount of air for complete combustion of the fine coal... | 10/09/2001 |
| 6293208 | Method of installation of supply of air of solid and pulverized fuel burner In a method of supplying air to a pulverized solid fuel burner passing through the burner cowl of a furnace, the fuel is dried and then conveyed by means of a given large quantity of hot air, which may or may not be depleted in oxygen in a separator in wh... | 09/25/2001 |
| 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 |
| 6260491 | Nozzle for feeding combustion providing medium into a furnace A nozzle for feeding combustion maintaining medium into a furnace at high temperature conditions includes a nozzle tip, at least partly protruding into the furnace, and a feeding mechanism for feeding the combustion medium from a source of the medium to t... | 07/17/2001 |
| 6244200 | Low NOx pulverized solid fuel combustion process and apparatus A method and apparatus for low-NOx combustion of a pulverized solid fuel in which combustion products from a partial oxidation combustor are mixed with a pulverized solid fuel, thereby preheating the pulverized solid fuel and resulting in devol... | 06/12/2001 |
