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4344372 |
Fluidized bed combustion device
A fluidized bed combustion device adapted for use with a boiler has an air distributor consisting of a row of generally horizontally oriented, apertured sparge pipes or tubes disposed in a bed of...
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4343247 |
Fluidized bed combustion method and apparatus
A fluidized bed combustion device adapted for use with a boiler has an air distributor consisting of a plurality of rows of generally horizontally oriented, apertured sparge pipes disposed in a bed...
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4343352 |
Heat exchanger for gases
Heat exchanger for gases, comprising a vertical shaft with upward flow of gas between rows of staggered horizontally disposed sets of tubes, downwardly restricted by a gas penetrable bottom (2) and...
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4338887 |
Low profile fluid bed heater or vaporizer
A fluid bed heater or vaporizer unit has a generally cylindrical configuration with its major axis horizontally disposed. A mixture of coal and limestone is fed into the elongated fluidized bed...
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4338074 |
Fluidized bed combustion chambers
An assembly and method for heating a fluidized bed combustion chamber to ignition temperature, wherein a heated gas flows through heat exchange tubes extending into the fluidized bed to provide...
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4336769 |
Integral vapor generator/gasifier system
An integral generator/gasifier system in which a vapor generator is provided that includes an upright furnace section and a plurality of nozzles, each having one end registering with the interior...
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4335683 |
Fluidized bed heat exchanger with control to respond to changes in demand
In a fluidized boiler system, the rate of fuel flow and bed depth are simultaneously controlled in response to variations in a load demand signal representing the need for steam output from the...
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4335661 |
Fluidized bed heat exchanger having an air assisted bed drain
A fluidized bed heat exchanger in which a perforated plate is disposed within a housing for supporting a bed of particulate material. Air is passed through the plate to fluidize the particulate...
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4332218 |
Support system for a fluidized bed
A system for supporting a fluidized bed in a boiler in which a plurality of support frames are supported in an abutting relationship spanning the interior of the boiler. One or more of the support...
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4331106 |
Heat exchanger support apparatus in a fluidized bed
A heat exchanger is mounted in the upper portion of a fluidized combusting bed for the control of the temperature of the bed. A support, made up of tubes, is extended from the perforated plate of...
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4325327 |
Hybrid fluidized bed combuster
A first atmospheric bubbling fluidized bed furnace is combined with a second turbulent, circulating fluidized bed furnace to produce heat efficiently from crushed solid fuel. The bed of the second...
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4323037 |
Fluidized bed firing unit
A fluidized bed firing unit, in which a fluidized bed of comparatively inert material is maintained in a container having cooled or insulated walls and a flow-bottom by means of air entering...
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4321233 |
Combustion furnace or reactor with multi-stage fluidized bed system
A combustion furnace or reactor with a multi-stage fluidized bed system wherein upper and lower fluidized bed formation zones in which the fluidized beds of bed particles containing particles of...
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4313398 |
Steam generator
A steam generator has a combustion chamber through which a bundle of steam-generating tubes extends generally horizontally. Air nozzles extend upwardly through the bottom wall of the steam...
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4312919 |
Process of producing a non-agglomerating vanadium coated particle
A process for the production of a non-agglomerating vanadium coated particle is disclosed comprising the combustion of a carbonaceous material or fuel containing relatively large amounts of...
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4312302 |
Combustion chamber for fluid-bed combustion
The bottom wall of a combustion chamber for fluid-bed combustion is formed as a membrane wall consisting of parallel tubes and fins welded between adjacent tubes, preferably in the common plane...
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4312301 |
Controlling steam temperature to turbines
An entrained bed combustor may provide constant temperature, superheated steam to a power generating steam turbine independent of the load on the turbine. In a conventional utility boiler heat is...
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4312135 |
Fluid bed combuster
A fluid bed combustor as well as a method of making same is disclosed. The combustor comprises a chamber containing a bed of relatively inert particles supported on a substantially horizontal...
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4309948 |
Solids feed nozzle for fluidized bed
The vertical fuel pipe of a fluidized bed extends up through the perforated support structure of the bed to discharge granulated solid fuel into the expanded bed. A cap, as a deflecting structure,...
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4308826 |
Shell boilers
A shell boiler containing boiler water or other fluid to be heated, including a furnace providing a fluidized bed and disposed inside or outside the boiler. Heat transfer pipes extend through the...
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4308810 |
Apparatus and method for reduction of NOx emissions from a fluid bed combustion system through staged combustion
Apparatus and method for the reduction of nitrogen oxides (NOx) in the emissions of a fuel burning fluidized bed combustion system. Using a staged combustion technique, an overfire air inlet is...
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4303023 |
Fluidized bed fuel burning
A process for desulfurizing fuel wherein a fuel is introduced and burned in a first fluidized bed and wherein a second fluidized bed is utilized to treat the products of combustion from the first...
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4301771 |
Fluidized bed heat exchanger with water cooled air distributor and dust hopper
A fluidized bed heat exchanger is provided in which air is passed through a bed of particulate material containing fuel. A steam-water natural circulation system is provided for heat exchange and...
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4300459 |
Char binder for fluidized beds
An arrangement that utilizes agglomerating coal as a binder to bond coal fines and recycled char into an agglomerate mass that will have suitable retention time when introduced into a fluidized bed...
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4300458 |
Apparatus for supporting a perforated plate air distributor for a fluidized bed
Apparatus for supporting a perforated plate (24) air distributor for a fluidized bed combustion boiler. The plate (24) is supported (26) around its entire periphery, and at given points (42) within...
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4299192 |
Catalytic combustion
A boiler suitable for catalytic combustion of fuel comprises a pilot burner and at least two sections comprising a fuel injector, a catalytic combustor and a heat exchanger. The catalytic combustor...
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4290387 |
Fluidized bed combustor and tube construction therefor
A fluidized bed combustor comprises a reactor or a housing which has a windbox distributor plate adjacent the lower end thereof which contains a multiplicity of hole and air discharge nozzles for...
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4287838 |
Fluidized bed coal combustion reactor
A fluidized bed coal reactor includes a combination nozzle-injector ash-removal unit formed by a grid of closely spaced open channels, each containing a worm screw conveyor, which function as...
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4287856 |
Engines
This invention relates to Rankine cycle engines and to improved methods of operation whereby catalytic oxidation of a major proportion of the fuel takes place in the boiler section of the engine....
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4279222 |
Feed of material to fluidized beds
The invention provides a fluidized bed combuster for fuel or waste material, preferably having a fluidized bed which is arranged to circulate about a horizontal axis, in which one or more baffles...
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4279205 |
Storage
A fluidized combustor is provided with a burning zone having cooling passages in its upper portion and a lower portion beneath said passages yet deep enough so that material therein may be operated...
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4275668 |
Coal feed system for a fluidized bed combustor
A coal feed system for use in a fluidized bed combustor in which a grate is supported in a housing and is adapted to support a bed of particulate material including a combustible fuel. Air is...
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4273073 |
Circulating fluidized bed boiler
A boiler in which the combustion unit includes a fluidized bed which may be fluidized in a non-uniform manner to effect circulation of the bed material. Heat exchange takes place between the...
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4270468 |
Disposal of waste products by combustion
A method of disposing of waste products from the chemical process industries, especially as a result of the re-refining of oils. The waste products are burnt in a fluidized bed in which the bed...
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4269151 |
Combustion chamber
A pressurized combustion chamber assembly wherein a fluidized bed extends in a longitudinal direction through an elongated, cylindrically shaped outer casing. A multi-stage cleaning plant is...
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4259911 |
Fluidized bed boiler feed system
A fluidized bed boiler feed system for the combustion of pulverized coal. Coal is first screened to separate large from small particles. Large particles of coal are fed directly to the top of the...
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4254739 |
Power sources
This invention relates to power sources which may be used underwater and to such sources in which catalytic combustion of the fuel takes place. The power source according to the invention includes...
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4253425 |
Internal dust recirculation system for a fluidized bed heat exchanger
A fluidized bed heat exchanger in which air is passed through a bed of particulate material containing fuel disposed in a housing. A steam/water natural circulation system is provided in a heat...
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4250839 |
Vapor generator utilizing stacked fluidized bed and a water-cooled heat recovery enclosure
A vapor generator in which a plurality of vertically aligned fluidized beds are disposed in a furnace section with one of the boundary walls of the furnace section having openings therein for...
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4249472 |
Thermal reactors
A thermal reactor, for example an incinerator, in which an upstanding partition wall in a furnace vessel defines adjacent, interconnecting compartments each containing a bed of particulate...
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4245693 |
Waste heat recovery
A fixed fluidized particulate solids bed heat recovery vessle or steam generator having indirect heat exchange means within the bed and introduction of a gas containing an entrained solids by way...
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4241670 |
Coal feed system for a fluidized bed boiler
An individual cell of a fluidized bed includes a static bed disposed immediately below the fluidization region with a coal feed system, which incorporates means for igniting the coal, embedded...
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4240364 |
Fluidized bed start-up apparatus and method
An apparatus and method for supporting and starting up a fluidized bed in which a grate is disposed in a housing for receiving a single bed of particulate material, portions of which are...
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4240377 |
Fluidized-bed compact boiler and method of operation
A method and associated apparatus for carrying out fluidized bed combustion and transferring heat produced thereby to a boiler includes providing a fluidized bed of particulate matter and...
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4240378 |
Combustion apparatus
A boiler having a firebox in which combustion of fuel fed thereto is initiated, a flame tube leading from the firebox in which combustion of fuel may continue and an array of smoke tubes through...
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4239479 |
Fluidized bed combustion
The invention relates to fluidized bed combustors that might tilt in use so that the depth of the bed progressively changes across its width. Air is supplied from two or more sources and means are...
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4237973 |
Method and apparatus for steam generation at the bottom of a well bore
A catalyst containing steam generator is lowered to the formation to be steamed. A packer is set at the upper extension of the generator to retain the steam. Fuel gas and oxidizing gas are passed...
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4237823 |
Fluidized bed combustion chamber
A fluidized bed combustion chamber adaptable for use with relatively large gas turbines and the like, wherein a substantially spherically-shaped outer casing encloses an annular fluidized bed...
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4232633 |
Process and reactor for conducting exothermal reactions in a circulating fluidized bed
This invention relates to a process and a reactor for conducting exothermal reactions, for instance combustion, between relatively heavy and relatively light phases in a circulating fluidized bed...
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4228767 |
Self contained boiler package utilizing atmospheric fluidized bed combustion
A fluidized bed combustion, unitized transportable fire tube boiler package supported by its framework and housed within an insulated housing that ducts incoming air to preheat it while serving as...
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