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| Number | Title | Issue Date |
| 6389995 | Method of combustion and a combustion plant in which absorbent is regenerated A method of combustion and a combustion plant in which absorbent is regenerated is described herein. During the combustion of a fuel in a combustion chamber enclosing a fluidized bed, a fuel and an absorbent are supplied to the fluidized bed. The combusti... | 05/21/2002 |
| 6260492 | Method and apparatus for burning fuel in the free board of a pressurized fluidized bed with solids recirculation A method of combustion in a pressurized, fluidized bed and in the freeboard thereof. The combustion method is further characterized by the recirculation of solid sulfur absorbing materials. A gas channel, designed so as to prevent fluidizing gas from ente... | 07/17/2001 |
| 6260346 | Combustion plant and a method of combusting a fuel A method of combusting a fuel, and a combustion plant are proposed. The combustion plant comprises a first circuit (1) with a gasifying reactor (3) to produce a combustible gas and a degassed, combustible rest product from the fuel. The combustible gas is... | 07/17/2001 |
| 6247301 | Gasifier and a power plant A power plant is disclosed having a combustion chamber (1) in which the combustion of a combustible material is performed, while forming hot combustion gases to drive a gas turbine device (14, 20, 27). A topping combustion device (8, 23) is arranged to re... | 06/19/2001 |
| 5971010 | Shaft device and a method of cooling a shaft device A shaft device for a valve, comprises a shaft supported in a bearing and extending into a relatively warm space, a sleeve provided between the shaft and the bearing, and cooling channels arranged in the border area between the shaft and the sleeve for coo... | 10/26/1999 |
| 5868083 | Method and device for feeding fuel into a fluidized bed To a fluidized combustor bed there is passed particulate fuel via a fuel flow distributor which comprises a vessel for receiving a particular fuel from a fuel storage. The fuel is fed into the vessel of the fuel flow distributor from the fuel storage, whe... | 02/09/1999 |
| 5755166 | Method and device for after-burning of particulate fuel in a power plant In a power plant with combustion of particulate fuel in a fluidized bed, unburnt particles are after-burnt in a burner which is based on the principle of vortex collapse and coarser particles are separated in connection with the after-burning. Such a burn... | 05/26/1998 |
| 5707198 | Method and device for discharging particulate material from a pressurized container A method of discharging particulate material from a first container to a lower positioned storage area being under a lower pressure than the first container. Particulate material is discharged via an upper tube section of a discharge tube communicating wi... | 01/13/1998 |
| 5680752 | Gas turbine plant with additional compressor A method of adjusting capacity of air flow to a pressurized combustor in a gas turbine plant having a first compressor driven by a gas turbine, which is in turn driven by gases generated during combustion of a fuel in the combustor is disclosed comprising... | 10/28/1997 |
| 5634329 | Method of maintaining a nominal working temperature of flue gases in a PFBC power plant A method for maintaining a nominal working temperature of flue gases during operation of a PFBC power plant having a pressure vessel with a combustor enclosed therein for combustion of a fuel in a fluidized bed, a gas turbine for receiving flue gases form... | 06/03/1997 |
| 5597628 | Lining An inner liner for a tubular casing, with the casing having a support means for coaxially supporting the liner within the casing. The liner has an axis and is made of material having a different coefficient of linear expansion than the casing, and compris... | 01/28/1997 |
| 5518529 | Method and device for ash discharge A method of feeding out dust in a dust discharge system in a power plant including feeding out dust pneumatically from a separator via a suction nozzle by using transport gas with a pressure exceeding atmospheric pressure, supplying diluting gas into the ... | 05/21/1996 |
| 5503661 | Method and device in a filter valve A method and a device are provided for cutting off a gas flow through a filter element in a ceramic filter of high-temperature type upon breakage of the filter element, wherein a pulling member which is fixed to the lowermost part of the filter element ca... | 04/02/1996 |
| 5490469 | Method and apparatus for heating the bed material in a PFBC plant A method of heating of bed material in a PFBC plant including a combustor and wherein bed level adjustment due to a load change is accomplished by injecting bed material into or discharging it from the combustor through feeding devices, the method includi... | 02/13/1996 |
| 5477683 | Method and device during starting and low-load operation of a once-through boiler A method for use during starting and/or low-load operation of a once-through boiler. The method includes the steps of generating steam in a steam generator; separating water from the steam in a moisture separator; heating the steam in a superheater and fe... | 12/26/1995 |
| 5457952 | Air flow control system in PFBC plants Air flow is controlled in a PFBC plant comprising a combustor and a pressure vessel, a two-shaft gas turbine consisting of a low-pressure compressor LC and a low-pressure turbine LT interconnected by a shaft and a high-pressure compressor HC and a high-pr... | 10/17/1995 |
| 5435122 | Temperature control method and apparatus for the air supply in PFBC plants A method for temperature control of an air supply in PFBC plants which comprise a low-pressure unit including a low-pressure compressor and a low-pressure turbine, a high-pressure unit including a high-pressure compressor and a high-pressure turbine, wher... | 07/25/1995 |
| 5406785 | Method and a device in a PFBC power plant A method and device for maintaining a high gas temperature to a gas turbine in a partial-load operation of a PFBC power plant, wherein gas is normally fed out from a fluidized bed through at least one central channel in a combustor which combustor also in... | 04/18/1995 |
| 5400725 | Method and device for feeding particulate material into a pressurized container A method of feeding particulate material into a pressurized fluidized bed combustor including the steps of: feeding the particulate material from a source which is at a substantially lower pressure than that existing in the pressurized fluidized bed combu... | 03/28/1995 |
| 5398644 | Temperature measurement at evaporator outlet A method and a device for temperature measurement of the fluid at the outlet from an evaporator in a boiler of benson type, wherein the evaporator includes one or more inlet headers which are supplied with water passed on to evaporator tubes which communi... | 03/21/1995 |
| 5377627 | Fluidized bed combustor, equipped with means for improving the distribution of fuel and gases Distributor device comprises at least one lower and/or one upper stationary distributor device for distribution of fuel in the form of gas and particles in a fluidized bed and is arranged above fuel feed nozzles in the bed, or at or above the upper limit ... | 01/03/1995 |
| 5347814 | Steam system in a multiple boiler plant A boiler plant, comprising at least a first boiler and a second boiler. The first boiler comprises a first superheater and a first reheater for generation and heating of steam. The second boiler comprises a second superheater and a second reheater for gen... | 09/20/1994 |
| 5331804 | System for starting a power plant The present invention comprises an apparatus in a power plant having a combustion chamber for combustion of a fuel at overpressure, a turbine driven by generated combustion gases, a compressor driven by the turbine for compression of combustion air, a gen... | 07/26/1994 |
| 5330320 | Method and a device in a rotating machine A method and a device for controlling the blade tip clearance in a rotating machine where the machine comprises a turbine part and a compressor part separate from the turbine part and the stator housing of the turbine part is formed with a stator cone. Th... | 07/19/1994 |
| 5304362 | Method in cleaning flue gas in a PFBC plant including a gas turbine driven thereby The invention refers to a method in cleaning flue gas in a PFBC plant including a gas turbine driven thereby, wherein the reduction of the NOx content in the flue gas is accomplished by thermal reduction by injecting ammonia into the flue gas f... | 04/19/1994 |
| 5261354 | PFBC power plant A PFBC power plant with a combustor (3) enclosed within a pressure vessel (1). The combustor (3) is formed as a polygonal prism with, for example, hexagonal cross section. The bed section (3a) of the combustor (3) accomodates a steam generator constructed... | 11/16/1993 |
