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| Number | Title | Issue Date |
| 7926432 | Low NOcyclone furnace steam generator A low NOx Cyclone furnace steam generator including redesigned or modified Cyclone furnaces, air flow distribution, and new or relocated air ports maintains and/or minimizes NOx emission levels from the Cyclone furnace steam generator while min... | 04/19/2011 |
| 7913632 | Combustion method and system A method of combustion for pulverized hydrocarbonaceous fuel includes injecting a concentrated fuel and air stream into a burner, causing a low-pressure zone; directing a flow of a high-temperature combustion gas from a combustion chamber into the low-pressure zone ... | 03/29/2011 |
| 7762200 | Method for starting high-performance entrained flow gasification reactors with combination burner and multiple burner array A method for starting high-performance entrained flow gasification reactors with a combination burner or a plurality of pulverized fuel burners, and an ignition and pilot burner. The ignition and pilot burner is ignited, substoichiometrically with fuel gas and a gas... | 07/27/2010 |
| 7694637 | Method and apparatus for a simplified primary air system for improving fluid flow and gas mixing in recovery boilers This invention improves gas mixing and combustion, gaseous fluid flow and control of the char bed in recovery boilers burning black liquor or soda liquor, requires fewer primary air ports than conventional methods and can reduce capital and operating costs. Some pri... | 04/13/2010 |
| 7607398 | Method and device for the regulated feed of pulverized fuel to an entrained flow gasifier A method and device for metering and feeding pulverized fuels under pressure into gasification reactors, with the pulverized fuel being supplied alternately from an operational bunker through pressurized sluices to a metering tank, in the bottom of which a dense flu... | 10/27/2009 |
| 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 |
| 7368090 | FCC spent catalyst distributor An distributor arrangement introduces spent FCC catalyst more uniformly across the dense bed of the regenerator to provide more even contact with regeneration gas in order to avoid hot spots and zones of incomplete combustion. The invention forms a fluidized hopper ... | 05/06/2008 |
| 7357903 | Method for reducing NOx during combustion of coal in a burner An organically complexed nanocatalyst composition is applied to or mixed with coal prior to or upon introducing the coal into a coal burner in order to catalyze the removal of coal nitrogen from the coal and its conversion into nitrogen gas prior to combustion of th... | 04/15/2008 |
| 7341102 | Flue gas injection for heavy oil recovery A variety of methods for thermal recovery of natural gas and bitumen from a formation containing the latter. In general, the methods incorporate a series of existing, but previously uncombined technologies. A modified flue gas from the steam generators conventionall... | 03/11/2008 |
| 7332002 | Low sulfur coal additive for improved furnace operation The present invention is directed to additives for coal-fired furnaces, particularly furnaces using a layer of slag to capture coal particles for combustion. The additive(s) include iron, mineralizer(s), handling aid(s), flow aid(s), and/or abrasive material(s). The... | 02/19/2008 |
| 7323021 | Ash reactivation Sulphur control in fluidized bed combustion systems often involves adding a source of calcium to the combustor so that the calcium may combine with the sulphur. Ash resulting from such combustion often contains a significant amount of calcium which does not combine ... | 01/29/2008 |
| 7320561 | System and method for handling bulk materials A bulk material handling system generally consisting of means for holding the material; means for conveying the material including a first conduit formed of a permeable material having an inlet communicating with an outlet of the material holding means and an outlet... | 01/22/2008 |
| 7320288 | Steam-generating combustion system and method for emission control using oxygen enhancement 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 g... | 01/22/2008 |
| 7316188 | Dedensification and delivery unit A dedensification and delivery unit for the conversion of an alternative fuel source into fuel, comprising: a dedensification area for separating a densified alternative fuel source into its component parts to form a dedensified alternative fuel source; a compressio... | 01/08/2008 |
| 7311474 | Pellet loader A pellet loader according to the present invention is provided with an ejector portion 1. A gas supply pipe 2 is connected to an injection nozzle 11 of the ejector portion 1 for supplying compressed gas from a compressed gas source 8 | 12/25/2007 |
| 7305829 | Method and apparatus for acquiring heat from multiple heat sources The present invention relates to systems and methods for implementing a closed loop thermodynamic cycle utilizing a multi-component working fluid to acquire heat from two or more external heat source streams in an efficient manner utilizing countercurrent exchange. ... | 12/11/2007 |
| 7287477 | Cyclone bypass for a circulating fluidized bed reactor A method of and an apparatus for operating a circulating fluidized bed reactor having a furnace with a discharge port for exhaust gas, and a particle separator having an inlet connected to the exhaust gas discharge port and an outlet duct for the exhaust gas and a r... | 10/30/2007 |
| 7281478 | Assembled cathode and plasma igniter with such cathode This invention relates to a plasma igniter for directly igniting the pulverized coal burner. Said plasma igniter consists of a plasma generator which includes a composite anode, an combined type cathode, an electromagnetic coil and a transmitting coil; a pulverized ... | 10/16/2007 |
| 7279017 | Method for converting heavy oil residuum to a useful fuel A method for enabling the use of heavy oil residuum by conversion to a useful product. The method, in one embodiment, involves the use of a heavy oil residuum which is substantially non flowable. The viscosity of the residuum is reduced by heat or a combination of h... | 10/09/2007 |
| 7277777 | Method and system for real time reporting of boiler adjustment using emission sensor data mapping A method to adjust a boiler having a flue gas duct including: sensing flue gas emissions in the gas duct with a plurality of emission sensors arranged in an array; generating a multidimensional graphical depiction of the flue gas emissions by plotting sensor data ca... | 10/02/2007 |
| 7275644 | Apparatus and method of separating and concentrating organic and/or non-organic material An apparatus for segregating particulate by density and/or size including a fluidizing bed having a particulate receiving inlet for receiving particulate to be fluidized. The fluidized bed also includes an opening for receiving a first fluidizing stream, an exit for... | 10/02/2007 |
| 7276217 | Reduction of coal-fired combustion emissions A process for mitigation of fouling deposits within a combustion zone, capturing of toxic metal emissions, and reduction of visible sulfur emissions attributable to sulfuric acid mist during coal combustion. SO3 formed during coal combustion is reduced by... | 10/02/2007 |
| 7273015 | Method and apparatus for combustion of residual carbon in fly ash A system for combustion and removal of residual carbon within fly ash particles in which the fly ash particles are fed into an array of process units for combustion. The fly ash particles are subjected to heat and motive air such that as the fly ash particles pass t... | 09/25/2007 |
| 7270063 | Methods and apparatuses for removing mercury-containing material from emissions of combustion devices, and flue gas and flyash resulting therefrom A method of removing mercury or mercury-containing material from flue gas produced by a coal-burning main furnace includes feeding coal, which contains mercury or mercury-containing material, to a main furnace which produces flue gas. The method further includes fee... | 09/18/2007 |
| 7261046 | System and method of reducing pulverizer flammability hazard and boiler nitrous oxide output The present invention is a system and method of reducing nitrogen oxides in coal combustion exhaust gases and preventing fire and explosion in pulverized coal systems. The present invention first cools the flue gas exiting a boiler of the pulverized coal system with... | 08/28/2007 |
| 7262384 | Reaction vessel and method for synthesizing nanoparticles using cyclonic gas flow A reaction vessel and a method for efficiently producing and collecting nanoparticles in the reaction vessel using cyclonic gas flow. Gas is injected through an inlet tangentially positioned relative to the axis of the vessel to cause the gas to form an outer helica... | 08/28/2007 |
| 7261047 | Control of cyclone burner A method of operating a combustion process in a cyclone burner, after start-up thereof, is provided. A fuel and a combustion gas is fed into a combustion chamber of the cyclone burner. The velocity of the combustion gas is kept between a lower and an upper limiting ... | 08/28/2007 |
| 7249564 | Method and apparatus for utilization of partially gasified coal for mercury removal A method for capturing mercury in a flue gas formed by solid fuel combustion including: combusting coal, wherein mercury released during combustion is entrained in flue gas generated by the combustion; generating a thermally activated carbon-containing sorbent by pa... | 07/31/2007 |
| 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 |
| 7244399 | Grid construction for a fluidized bed reactor A grid construction for a fluidized bed reactor, the reactor including a reaction chamber defined by substantially vertical walls, in which a fluidized bed of solid particles is maintained, and a windbox under the reaction chamber, in a lower portion of the reactor.... | 07/17/2007 |
| 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 |
| 7213522 | Solid fuel burner, solid fuel burner combustion method, combustion apparatus and combustion apparatus operation method A solid fuel burner and its combustion method suited for encouraging fuel ignition and avoiding slugging caused by combustion ash, wherein a gas of low oxygen concentration (exhaust combustion gas) is used as a carrier gas of such a low grade solid fuel as brown coa... | 05/08/2007 |
| 7199088 | Lubricating oil for a diesel powered engine and method of operating a diesel powered engine A lubricating oil composition useful for a diesel-powered engine is provided that reduces NOx emissions level produced from a diesel-powered engine. The lubricating oil comprises a base oil and at least one oil-dispersible source of HNCO such as isocyanates. A metho... | 04/03/2007 |
| 7185595 | Method for largely unsupported combustion of petroleum coke Combustion of petroleum coke using air to carry the fuel into a combustion zone and to provide a source of oxidant. Enhanced combution utilizes oxygen introduced into or proximate primary, secondary, tertiary, quaternary, or over-fire air to effect primary combustio... | 03/06/2007 |
| 7185830 | Uniform droplet spray nozzle for liquids A liquid spray nozzle configured to provide a relatively uniform droplet size spray having a nozzle body, a flow passage disposed in the nozzle body, a turbulent flow mechanism in the flow passage, a flow separating mechanism in the flow passage and a converging mec... | 03/06/2007 |
| 7175423 | Air staged low-NOx burner An apparatus and method for using staged air combustion. The apparatus includes a burner body (10) secured to a port block (42), and a fuel passageway (12) extending through the burner body (10), terminating in a fuel nozzle (22), ... | 02/13/2007 |
| 7168949 | Stagnation point reverse flow combustor for a combustion system A combustor assembly includes a combustor vessel having a wall, a proximate end defining an opening and a closed distal end opposite said proximate end. A manifold is carried by the proximate end. The manifold defines a combustion products exit. The combustion produ... | 01/30/2007 |
| 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 |
| 7168947 | Methods and systems for operating combustion systems Methods and systems for reducing nitrogen oxides in combustion flue gas is provided. The method includes combusting a fuel in a main combustion zone such that a flow of combustion flue gas is generated wherein the combustion flue gas includes at least one nitrogen o... | 01/30/2007 |
| 7137759 | System and method for handling bulk materials A bulk material handling system generally consisting of means for holding the material; means for conveying the material including a first conduit formed of a permeable material having an inlet communicating with an outlet of the material holding means and an outlet... | 11/21/2006 |
