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| Number | Title | Issue Date |
| 7252701 | Method of cleaning electric filter and electric filter The invention relates to a method of cleaning an electric filter and to an electric filter. In the method gas containing particles is fed to a chamber (2) of the electric filter. The gas is further fed to gas channels (5) in an emission system (3 | 08/07/2007 |
| 7178466 | Railroad car with side and intermediate door providing access to the inside of its box body, and corresponding train A railroad car is provided having a box body extending longitudinally and delimiting compartments, seats arranged in the compartments, means for identifying the seats,means for identifying the car, and at least one side door providing access to the compartments. The... | 02/20/2007 |
| 7165404 | Method for optimizing a large-scale industrial facility, especially a power plant The invention relates to a method for optimizing a large-scale industrial facility, especially a power plant, consisting of m subassemblies (BGj), wherein j=1(1)m) and wherein the following steps are successively carried out: comparing the parameters (KGj) of all su... | 01/23/2007 |
| 7152537 | Fluidized bed boiler furnace comprising two hearths separated by an inside leg area The fluidized bed boiler furnace having two hearths (2, 3) separated by a divider (1) in the bottom portion of the furnace comprises one or more panels (6) of heat exchange tubes each disposed vertically above the divider of the furnace and perp... | 12/26/2006 |
| 7153481 | Method and device for separating sulphur dioxide from a gas A device (1) for separating sulphur dioxide from a gas (4) by means of an absorption liquid has an inlet (2) for gas (4) containing sulphur dioxide, an outlet (18) for gas (16), from which sulphur dioxide has been separated,... | 12/26/2006 |
| 7118721 | Method for treating emissions A method for removing pollutants from flue gas generated by a plant having one or more burners located at an inlet end of a vertically extending stack, the flue gas being discharged through an outlet end of the stack. The pollutants are removed by an emission treatm... | 10/10/2006 |
| 7094382 | Method and a device for the separation of sulphur dioxide from a gas A device (1) for separating sulphur dioxide from a gas has an inlet (2) for the gas (4) and an outlet (42) for gas (40), from which sulphur dioxide has been separated. An apertured plate (20) is arranged between the inlet ( | 08/22/2006 |
| 7083658 | Hot solids gasifier with COremoval and hydrogen production A gasifier 10 includes a first chemical process loop 12 having an exothermic oxidizer reactor 14 and an endothermic reducer reactor 16. CaS is oxidized in air in the oxidizer reactor 14 to form hot CaSO4 which is dischar... | 08/01/2006 |
| 7056478 | Emission treatment system An emission treatment system for removing NOx from flue gas includes a diversion member that closes the stack at a position intermediate the inlet and outlet ends. A major component module includes a first sub-module, having an inlet and an SCR segment, a... | 06/06/2006 |
| 7056086 | Steam turbine including a high-pressure body having a single state of blades A steam turbine 1 constructed in accordance with the present invention comprises a high-pressure module 2 and a low-pressure module 3, a speed-reducing gearbox 4, and an alternator, and wherein the high-pressure module 2 has a sing... | 06/06/2006 |
| 7042725 | Power switching module and inverter equipped therewith A power switching module is provided having at least one power switch placed above at least one other power switch, each power switch in turn including an upper wall and a lower wall, each of which is cooled through thermal conduction by a cooling medium that circul... | 05/09/2006 |
| 7036563 | Tubesheet support arrangement for a FGTT (flue-gas-through-the-tubes)heat exchanger A tubesheet support arrangement 11 supports a tubesheet 10 within a vessel 12, the tubesheet 10 maintaining a plurality of tubes 22 at fixed radial spacings from one another with the tubes 22 extending from the tubesheet ... | 05/02/2006 |
| 7028847 | High efficiency two-stage dynamic classifier A two-stage dynamic classifier (30, 30′) for classifying a pulverized feed material (34, 34′, 38) entrained in an air flow (31) includes a vertically extending housing having a lower feed material inlet (18), an upper feed material outlet ( | 04/18/2006 |
| 7017501 | Riffle distributor assembly for a fossil fuel fired combustion arrangement A riffle distributor assembly for influencing the travel properties of a material feed stream 42 moving between a pulverizer 14 and a furnace 12 is part of a feed path 36 having one duct 44A having a branch entry 66A and ano... | 03/28/2006 |
| 7017844 | Wear plates for the vertical rotor of a pulverizer A wear plate 52 for mounting in a wear protecting disposition on a rotor disc 50 of a pulverizer 38 includes a body portion 64 having a radially outer circumferential edge 74 and a radially inner circumferential edge 76, an ... | 03/28/2006 |
| 6994205 | Apparatus for controlling the deposition of feed material on a deposition build-up surface An apparatus 40 for controlling the deposition of feed material, such as coal 24, on a deposition build-up surface 64 subjected to deposition loading of feed material is provided for use in a feeder arrangement having an endless conveyor 42 | 02/07/2006 |
| 6994527 | Process and a device for transport of gas The present invention provides a process and a device for transport of gas in a main duct with more than two branch ducts wherein the gas is guided through the branch ducts (1, 2, 3, 4, 5, 6, 7, 8) and into the main duct (A) with a direction which is parallel... | 02/07/2006 |
| 6995409 | Module for high voltage power for converting a base of IGBT components This power switching cell comprises: at least two power components (4–6) forming a chain (2) of components electrically linked in series by way of at least one intermediate bond (52, 70), and | 02/07/2006 |
| 6959653 | Fuel nozzle for a fossil fuel fired combustion arrangement A pivot mounting apparatus 210 is provided for pivotally mounting to one another the coal nozzle tip 212 and coal nozzle body 214 of a pulverized solid fuel nozzle 208 of a pulverized solid fuel-fired furnace 10. The pivot mounting... | 11/01/2005 |
| 6902126 | Hybrid turbine classifier A hybrid turbine classifier for a coal pulverizer includes a cone disposed within the separator body of the pulverizer. The cone extends downwardly from a base to a frustum which forms an opening for depositing coal particles on the grinding table of the pulverizer.... | 06/07/2005 |
| 6877670 | Boiler ventilation system A method of ventilating a boiler system (10) during boiler system outages includes shifting (64) to the ventilation system (11) by stopping (70) the boiler system induced draft fan (32), closing (71) an internal isolation da... | 04/12/2005 |
| 6648061 | Heating element for a regenerative heat exchanger and method for producing a heating element A heating element is described for a regenerative heat exchanger that is constructed as a profiled steel sheet. The aim of the invention is to produce a heating element that is resistant to acids, has anti-soiling properties and, however, has a good therm... | 11/18/2003 |
| 6195998 | Regenerative subsystem control in a kalina cycle power generation system A method of operating a Kalina cycle power generation system includes directing a stream of vaporized binary working fluid to a turbine where it is expanded to produce power. At least a portion of the expanded binary working fluid is directed to a regener... | 03/06/2001 |
| 6089171 | Minimum recirculation flame control (MRFC) pulverized solid fuel nozzle tip A minimum recirculation flame control (MRFC) solid fuel nozzle tip (12) that is suited to being cooperatively associated with a pulverized solid fuel nozzle (34) of a firing system in a pulverized solid fuel-fired furnace (10). The MRFC solid fuel nozzle ... | 07/18/2000 |
| 6035642 | Refurbishing conventional power plants for Kalina cycle operation A method is provided which refurbishes a Rankine cycle vapor generator initially having a plurality of Rankine heaters for supporting a Rankine cycle subsystem. The method removes at least one of the Rankine heaters, and replaces the at least one removed ... | 03/14/2000 |
| 5988115 | SCR reactant injection grid A system and method of injecting an ammonia or urea reactant into a flue gas stream in a steam generating power plant that utilizes Selective Catalytic Reduction (SCR) to lower NOx emissions and more specifically the injection of the reactant i... | 11/23/1999 |
| 5976224 | Separating carbon from ash A method of separating unburned Carbon, as particulate matter, from the flyash produced as a result of the combustion process occurring in a pulverized-coal fired steam generating power plant is disclosed. More particularly the invention separates the fly... | 11/02/1999 |
| 5967098 | Oil shale fluidized bed A fluidized bed combustion system is disclosed and in particular a fluidized bed combustion system particularly well suited for the combustion of oil shale, generating steam thereby. The fluidized bed combustion system includes a furnace volume having a m... | 10/19/1999 |
| 5960724 | Method for effecting control over a radially stratified flame core burner A method for effecting control over a radially stratified flame core burner that is particularly suited for employment in a firing system of a fossil fuel-fired furnace for purposes of reducing the NOX emissions from the fossil fuel-fired furna... | 10/05/1999 |
| 5943865 | Reheating flue gas for selective catalytic systems A method and apparatus for controlling the temperature of a flue gas stream entering a Selective Catalytic Reduction chamber in a steam generating power plant that utilizes Selective Catalytic Reduction (SCR) to lower NOx emissions is disclosed... | 08/31/1999 |
| 5899172 | Separated overfire air injection for dual-chambered furnaces A separated overfire air injection system particularly suited for use in a fossil fuel-fired steam generating power plant and more specifically to a sixpoint separated overfire air tangential firing system employed in such power plants, particularly those... | 05/04/1999 |
| 5875977 | Technique for improving the response time of pulverized coal boilers A method of controlling the operation of the bowl mills in a coal-fired steam generating power plant is disclosed; and in particular a method of controlling the operation of such bowl mills such that the furnace of a steam generating power plant can more ... | 03/02/1999 |
| 5822991 | Circulating fluidized bed steam generator (CFB) with a superheater and a reheater A method for exercising control over the final predefined superheat outlet steam temperature and for exercising control over the final predefined reheat outlet steam temperature from a circulating fluidized bed steam generator having a furnace volume embo... | 10/20/1998 |
| 5800773 | Segmented smelt spout A segmented smelt spout comprising an assembly of different casting shapes wherein one shape constitutes the base segment, which is installable in a chemical recovery unit, and the other shapes are a combination of straight and curved cast segments, which... | 09/01/1998 |
| 5784975 | Control scheme for large circulating fluid bed steam generators (CFB) A control scheme for large circulating fluidized bed steam generators (CFB) wherein direct control is effected therewith over the temperature of the large circulating fluidized bed steam generators (CFB) and wherein independent control is effected therewi... | 07/28/1998 |
| 5729470 | System for continuous in-situ measurement of carbon in fly ash A system including a resonant cavity for measuring in-situ and in real time the Carbon content of the fly ash produced from the combustion process occurring within a pulverized coal-fired steam generator. The resonant cavity basically includes an intellig... | 03/17/1998 |
| 5688296 | Control system for IGCC's A control system particularly suited for effecting control over an integrated gasification combined cycle system (IGCC) that includes at least a fuel feed system, a gasifier system, a product gas cleanup system, a booster compressor and a gas turbine. The... | 11/18/1997 |
| 5660125 | Circulating fluid bed steam generator NOx control A method for enhancing the minimization of NOx control in a circulating fluid bed steam generator into which there is injected fuel, fluidizing air, a lower level of combustion air and an upper level of combustion air. The fuel is injected at a... | 08/26/1997 |
| 5626085 | Control of staged combustion, low NOx firing systems with single or multiple levels of overfire air A control system for a fuel-fired furnace and more specifically the control of the stoichiometric ratio of the combustion process occurring within the furnace of a steam generating power plant. The control system, when so employed, is capable of regulatin... | 05/06/1997 |
| 5622534 | High performance, multi-stage, pressurized, airblown, entrained flow coal gasifier system A high performance, multi-stage, pressurized, airblown, entrained flow coal gasifier system and a method of operating such a gasifier system for generating therewithin fuel gas from coal. The subject gasifier system includes an outer, pressure containing ... | 04/22/1997 |
