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5277151 |
Integral water-cooled circulating fluidized bed boiler system
An integral circulating fluidized bed steam generation system having a particle separator which is formed by the membrane walls of the reactor chamber. The particle separator has a serpentine...
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5273000 |
Reheat steam temperature control in a circulating fluidized bed steam generator
A method of controlling the reheat steam temperature in a circulating fluidized bed combustion system wherein the circulating solids are cooled in a heat recovery fluid bed system containing reheat...
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5269262 |
Combustion unit
The invention relates to a combustion unit, which for effecting a circulating mass process comprises a reactor chamber, whose lower part is, for formation of a fluidized bed, fitted with a grate...
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5269263 |
Fluidized bed reactor system and method of operating same
A fluidized bed reactor system and method of operating same, in which a fluidized bed of fine particles is combusted in a reactor forming a mixture of flue gases and relatively fine particles...
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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...
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5259123 |
Aeration rod-out assembly
An aeration rod-out assembly for aerating a flow of solids in a pipe is disclosed comprising an aeration pipe with first and second ends, the first end connected to the pipe containing the flow of...
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5257585 |
Incinerator
An incinerator designed so that the reaction of unburnt gas with oxygen progresses rapidly to thereby minimize the amount of unburnt gas generated therefrom. An intermediate portion of a combustion...
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5255634 |
Pulsed atmospheric fluidized bed combustor apparatus
A pulsed atmospheric fluidized bed reactor system is disclosed and claimed along with a process for utilization of same for the combustion of, e.g. high sulfur content coal. The system affords a...
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5253741 |
Fluidized bed steam reactor including two horizontal cyclone separators and an integral recycle heat exchanger
A fluidized bed reactor in which partitions disposed within a vessel form first and second furnace sections, first and second troughs and a heat exchange section such that the first trough is...
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5251691 |
Device for the indirect heating of air
A device for the indirect heating of air or another gas at high pressure to a high temperature, consisting of a heat exchanger of a special construction submerged in a fluid bed of the "classical...
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5242012 |
Apparatus and process for cooling fluid solid particles
An arrangement of apparatus and process thereof for cooling hot fluid solid particles, especially hot regenerated catalytic particles are disclosed. The apparatus comprises a substantially...
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5242662 |
Solids recycle seal system for a fluidized bed reactor
A fluidized bed reactor in which a sealing section is located within the reactor and adjacent a furnace section located in the reactor. A fluidized bed is formed in the furnace section and the...
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5239945 |
Apparatus to reduce or eliminate combustor perimeter wall erosion in fluidized bed boilers or reactors
A fluidized bed boiler or reactor comprising a housing, a reaction (furnace) chamber within the housing, air distribution means within the reaction chamber, a plurality of perimeter walls...
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5237963 |
System and method for two-stage combustion in a fluidized bed reactor
A fluidized bed system and method utilizing two stage combustion in which solids in the flue gases from the combustion in the fluidized bed are separated and returned to the bed while the clean...
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5230872 |
Method and apparatus for regenerating activated carbon containing an adsorbed volatile organic absorbate
Activated carbon regeneration is carried out in a downwardly moving bed with superheated steam moving upwardly through the bed. The superheated steam is maintained in a closed loop which comprises...
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5226475 |
Circulating fluidized bed process for cooling gases
The invention relates to a process for cooling gases using a circulating fluidized bed technique, wherein gas is conveyed through a fluidized bed formed by circulating fluidized bed material so...
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5218932 |
Fluidized bed reactor utilizing a baffle system and method of operating same
A fluidized bed reactor and method of operating same in which a bed of particulate material including fuel is formed in a furnace section. A stripper/cooler is located adjacent the furnace section...
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5216981 |
Coal-fired heating apparatus and method
An aerodynamically cleaned heat-exchanger is used in heating apparatus in which the radiant energy of a dirty fuel, such as coal or char, is efficiently recovered while the exposed heat-exchange...
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5215042 |
Fluidized bed reactor
A reactor for combusting fine-grained solid fuels in a circulating fluidized bed contains a combustion chamber, which is provided with lines which open in the lower portion of that chamber and...
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5205350 |
Process for cooling a hot process gas
Disclosed is a process for cooling hot exhaust gases. The process gases are supplied to a stationary fluidized bed, which contains cooling elements and is contained in an annular trough. Fluidizing...
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5203284 |
Fluidized bed combustion system utilizing improved connection between the reactor and separator
A fluidized bed combustion system in which a duct connects a reactor and a separator and extends within the furnace section of the reactor. The duct is wedge shaped, having an inlet width greater...
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5193490 |
Cyclonic mixing and combustion chamber for circulating fluidized bed boilers
An apparatus for supplying fluidized bed material to a circulating fluidized bed boiler having a primary zone with a fuel feed point and a furnace zone above the primary zone, a mixing chamber for...
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5184671 |
Fluidized bed heat exchanger and method of operating same
A fluidized bed heat exchanger and a method of controlling same in which a first chamber and plurality of additional chambers are formed in a housing. A particulate material is supported in all of...
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5183641 |
Distributor plate in a fluidized bed reactor
The grid plate is disposed between the fluidized bed reactor chamber and an underlying wind box and includes a plurality of nozzles for feeding fluidizing gas from the wind box into the reaction...
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5178101 |
Low NO.sub.x combustion process and system
A method and corresponding system are provided for reducing quantities of oxides of nitrogen, including N 2 O, that are generated in a coal-fired fluidized bed boiler, the exhaust stream from the...
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5176109 |
Pressurized boiler plant
A pressurized boiler assembly (e.g. with a circulating fluidized bed combustion chamber), including a pressure vessel pressurized to about 7-30 bar, has a minimum height, minimum number of through...
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5171542 |
Circulating fluidized bed reactor
Dynamic fluidized-bed reactor for carrying out a chemical or physical multi-component process, which said reactor comprises a preferably vertical, cooled or uncooled reactor chamber and a...
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5167932 |
Circulating fluid bed reactor
A circulating fluid bed reactor comprises a reactor chamber having a circumscribing wall, a particle separator to receive a particle - gas suspension from the reactor chamber, and means for...
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5163384 |
Power plant with a combustor for combustion in a fluidized bed
The invention relates to a power plant with a combustor (10) with combustion of a fuel in a fluidized bed of a particulate material and with a storage container (36) for hot bed material for...
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5159886 |
Process of combusting coal in a circulating fluidized bed
Granular coal is combusted in a circulating fluidized bed system comprising a combustion chamber, a separator and a recycle line for recycling solids from the separator to the combustion chamber....
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5158449 |
Thermal ash agglomeration process
A process and apparatus for thermal agglomeration of high melting temperature ashes in fluidized bed processes is disclosed. Carbonaceous material to be combusted, incinerated or gasified is...
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5156099 |
Composite recycling type fluidized bed boiler
An internal recycling type fluidized bed boiler in which a fluidized bed portion of the boiler is divided by a partition into a primary combustion chamber and a thermal energy recovery chamber, at...
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5154732 |
Apparatus for gasifying or combusting solid carbonaceous
A method and apparatus for gasifying or combusting solid, carbonaceous material a circulating fluidized bed reactor. Particles are separated from the product gas at least in two stages so that in...
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5146856 |
Power plan with a screw conveyor ash cooler
In a power plant, for example of PFBC type, with a cooler for cooling of ashes originating in a fluidized bed, the cooler comprises a cylinder with a transport screw which transports the ashes...
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5143024 |
Pressure fluidized bed firing boiler
A support structure supports a fluidized bed firing boiler disposed within a cylindrical pressure vessel and operated while the inside of a fluidized bed furnace is kept pressurized. A main body of...
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5141708 |
Fluidized bed combustion system and method having an integrated recycle heat exchanger
A fluidized bed combustion system and method in which a recycle heat exchanger is located adjacent the furnace section of the combustion system. A mixture of flue gases and entrained particulate...
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5141047 |
Fluidized bed heat exchanger
A vertical tube heat exchanger for use with fluidized solid particulates as a heat transfer medium includes a plurality of vertically extending spaced apart tubes for containing an internal fluid...
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5138982 |
Internal circulating fluidized bed type boiler and method of controlling the same
An internal recycling type fluidized bed boiler includes a primary fluidized bed incinerating chamber constructed by an air diffusion plate, and an inclined partition wall provided above a portion...
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5138958 |
Process for incinerating domestic refuse in a fluidized bed furnace
A process for incinerating domestic refuse is implemented in a boiler comprising a fluidized bed furnace over which is a post-combustion chamber. The smoke passes through alternately upward and...
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5127345 |
Combustion apparatus and combustion control method therefor
A combustion apparatus has a combustion furnace section, a free board section which is downstream of the combustion furnace section, and a post-combustion chamber which is downstream of the free...
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5123480 |
Integrated heat exchanger
An integrated, vertical tube heat exchanger for use with a plurality of heat transfer mediums including fluidized solid particulates and hot gaseous products of combustion includes a plurality of...
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5117770 |
Combustion unit
Combustion unit which for attaining a circulation process comprises a reactor chamber (1) and a particle separator (6) which is provided with two casings (7, 8) and which is placed inside the...
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5115749 |
Method of attaining uniform flow in elongated fluidized bed furnace
A method of attaining a uniform flow in an elongated fluidized bed furnace, used for the purpose of preventing the expansion and uniting of bubbles in the fluidized bed, and setting the fluidized...
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5113598 |
Apparatus for powder falling gas-solid contacting operation
An apparatus for powder falling type gas-solid contacting operation which comprises a hopper for feeding solid particles, a fluidizing bunker wherein the fed particles are fluidized by introduction...
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5110323 |
Process for the return of recovered particulate solids by a cyclone separator to a vessel
A process for transferring and regulating the recycle of particulate solids separated from a gas-particulate solids suspension in which an auxiliary vesssel and slanted pipe are provided to...
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5108712 |
Fluidized bed heat exchanger
A fluidized bed heat exchanger and a method of controlling same in which a first chamber and plurality of additional chambers are formed in a housing. A particulate material is supported in all of...
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5103773 |
Fluid bed furnace
At a fluidbed furnace comprising a combustion shaft, a particle separator, a particle return passage and designed according to conventional design criteria for obtaining a good combustion at...
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5099801 |
Process for operating a coal-based fluidized bed combustor and fluidized bed combustor
Some part (a) of the bed material is withdrawn continuously (9e, 10) from the lower region of the fluidized bed (20), cooled (11), screened (12, 13) on a belt (a') to obtain a particle size...
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5095854 |
Fluidized bed reactor and method for operating same utilizing an improved particle removal system
A fluidized bed reactor in which a bed of particulate material including fuel is formed in a furnace section. Air is passed through the bed at a velocity to fluidize said material and promote the...
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5094191 |
Steam generating system utilizing separate fluid flow circuitry between the furnace section and the separating section
A fluidized bed steam generating system in which a duct is disposed between a furnace outlet and a separator inlet. The duct is formed by first and second wall panels which are comprised of a...
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