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5435820 Water/steam-cooled U-beam impact type particle separator  
An apparatus for separating solids from a solids and gas flow in a combustor having a fluid circulating system uses a plurality of separators adjacently positioned and horizontally spaced in a path...
5425331 Circulating fluidized bed reactor for low grade fuels  
A fluidized bed reactor in which a plurality of air bars are supported by a plurality of tubes in an upright enclosure. The air bars support a bed of particulate material and discharge air into the...
5419267 Method and apparatus for drying the fuel of a fluidizied-bed boiler  
The present publication discloses a method and an apparatus for drying the fuel used for firing a fluidized-bed boiler (1). The hot, inert solids of the fluidized bed are circulated by a regulated...
5415111 Circulating fluidized bed combustor with bottom ash re-injection  
A process is set forth for directly controlling the quantity and particle size distribution of the solid inventory inside a circulating fluidized bed combustor. A portion of the bed ash is...
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...
5401130 Internal circulation fluidized bed (ICFB) combustion system and method of operation thereof  
A fluidized bed combustion system (10) particularly suited for use to effect the incineration, i.e., combustion, therewith of wood waste/sludge mixtures that have high moisture and ash content...
5394811 Process for drying a water-containing fuel in direct contact with a hot granular solid residue  
Dried fuel is at least partly combusted, gasified or carbonized in the presence of cooled solid residue in a reactor. Hot solid residue, which is at temperatures in the range from 500° to 1200°...
5395595 Fluidized bed reactor  
The present invention relates to a fluidized bed reactor in which olefins are polymerized or copolymerized in a bed formed by particles being polymerized and fluidized with the aid of a circulating...
5392736 Fludized bed combustion system and process for operating same  
A fluidized bed combustion system and process is disclosed, in which full load stoichiometry is maintained at lower loads. The system and process includes an enclosure and a partition disposed in...
5391357 Circulating fluidized bed reactor  
A circulating fluidized bed reactor comprises a reaction chamber (10) with an upwardly directed flow of gas with entrained particulate solid material, a separator (18) for separating the particles...
5390612 Fluidized bed reactor having a furnace strip-air system and method for reducing heat content and increasing combustion efficiency of drained furnace solids  
A fluidized bed reactor having a furnace strip-air system and method for reducing heat content and increasing combustion efficiency of drained furnace solids in which a bed of particulate material...
5390630 Stationary feed arrangement for use in a rotary fluid bed gasifier  
A rotary fluid bed gasifier having a combustor assembly and a stationary feed conduit which is capable of feeding a carbonaceous material and/or limestone from outside of the gasifier and...
5378434 Fluidized multistaged reaction system for polymerization  
This invention relates to a novel horizontal fluid bed reactor, which in a single unit, provides for the polymerization of monomer to polymer and mixed monomers to co-polymers. Within one reactor...
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...
5375563 Gas-fired, porous matrix, surface combustor-fluid heater  
A porous matrix, surface combustor-fluid heating apparatus comprising a combustion chamber, a cooled flow distributor proximate an inlet end of said combustion chamber and supporting a stationary...
5372096 Internal particle collecting cells for circulating fluid bed combustion  
The particle separation and collection system for a circulating fluidized bed combustion system is incorporated inside of the combustor. One or more particle collecting cells are formed along one...
5370084 Pantleg circulating fluidized bed boiler and combustion method using same  
A combustion subsystem with a circulating fluid bed boiler (12) having a pantleg configuration. The boiler includes front (22) and back (24) walls with external fluid bed heat exchangers (48)...
5365889 Fluidized bed reactor and system and method utilizing same  
A fluidized bed reactor and system and method utilizing same for the combustion of waste fuels in which the reactor vessel is divided into three vessels. Waste fuel is introduced into the fluidized...
5363812 Method and apparatus for controlling the bed temperature in a circulating fluidized bed reactor  
Bed temperature in a circulating fluidized bed (CFB) reactor is controlled by varying a recirculation rate of particles collected by a secondary particle separator back to the CFB reactor. Particle...
5361728 Pressurized fluidized bed combustion boiler system  
A pressurized fluidized bed combustion boiler system comprising: a boiler; a filtration apparatus with ceramics filters in a flue gas system; and a louver separator as a primary stage dust...
5355725 Method for determining the mass flow rate of solids in a cyclone separator for a fluidized bed reactor  
The present invention is directed to a method for determining the mass flow rate of solids in a cyclone separator having an inlet for receiving a mixture of solids and gases and an outlet for...
5351749 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...
5347953 Fluidized bed combustion method utilizing fine and coarse sorbent feed  
A fluidized bed combustion method utilizing fine and coarse sorbent feed to control the temperature of a cooling fluid such as water or steam circulating through a fluid flow circuit of a fluidized...
5347954 Fluidized bed combustion system having an improved pressure seal  
A fluidized bed combustion system in which a separator receives a mixture of flue gases and entrained particulate material from a fluidized bed in a furnace. A pressure seal valve, in the form of...
5345896 Method and apparatus for circulating solid material in a fluidized bed reactor  
A reactor chamber of a fluidized bed reactor has an internal circulation of particles. Larger recirculated particles are prevented from contacting heat transfer surfaces by classifying particles...
5345883 Reactivation of sorbent in a fluid bed boiler  
A circulating fluidized bed combustion process which uses a sorbent to react with sulfur oxides employs a process for fracturing the sorbent particles to expose unreacted sorbent in the core of the...
5343631 Treatment of friable materials in fluid bed reactors  
A process and apparatus for cooling coal dried in a fluid bed reactor are disclosed in which heated dried coal is separated into coarser and finer fractions and the coarser and finer fractions are...
5343830 Circulating fluidized bed reactor with internal primary particle separation and return  
A CFB reactor or combustor having an internal impact type primary particle separator provides cavity means and particle return means in an upper portion of the reactor enclosure to obtain direct...
5343820 Advanced overfire air system for NO.sub.x control  
An advanced overfire air system for NO x control designed for use in a firing system of the type that is particularly suited for use in fossil fuel-fired furnaces and a method of operating such a...
5341753 Circulating fluidized bed power plant with improved mixing of sorbents with combustion gases  
A circulating fluidized bed combustor comprises a fluidized bed combustion chamber, a recirculating system for recirculating fluidized solids through the combustion chamber, and a plurality of...
5339774 Fluidized bed steam generation system and method of using recycled flue gases to assist in passing loopseal solids  
A fluidized bed steam generation system and method in which recycled flue gases are used to assist in passing solid particulate material from the separator, through the loopseal, and back into the...
5335630 Method and device for controlling the power output during combustion in a fluidized bed  
In a method and device for controlling power output during combustion in a pressurized fluidized bed, energy developed is taken out by heat transfer surfaces and a gas turbine, and heat is utilized...
5332553 Method for circulating solid material in a fluidized bed reactor  
In a fluidized bed reactor particles are internally circulated, moving down the walls forming the reactor chamber. A particle chamber having a particle gathering top wall with a horizontal...
5329892 Frame for bed vessel  
A frame structure is provided for a bed vessel in an energy plant with higher or lower pressure in the bed vessel in relation to the surrounding space. The walls of the bed vessel are stiffened by...
5325823 Large scale fluidized bed reactor  
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...
5326252 Catalytic combustion  
A self contained catalytic heating device within which a fuel/oxidizer mixture and combustion products are held out of physical contact with a heated medium, allowing the temperature of the...
5325796 Process for decreasing N.sub.2 O emissions from a fluidized bed reactor  
Emissions of nitrous oxide (N 2 O) are lowered in a fluidized bed reactor utilizing two-staged combustion. A lower region of the furnace section is operated under substoichiometric conditions so...
5325797 Staged fluidized-bed combustion and filter system  
A staged fluidized-bed combustion and filter system for substantially reducing the quantity of waste through the complete combustion into ash-type solids and gaseous products. The device has two...
5324421 Method of protecting heat exchange coils in a fluid catalytic cracking unit  
In a steam generator for recovering heat in a hot fluidized bed of solid particles, wherein coils of the steam generator make a 180° U-bend, the U-bend portion of the coils are protected from...
5320518 Method and apparatus for recuperative heating of reactants in an reaction matrix  
Methods and apparatus are provided for establishing and controlling the stability and movement of a reaction wave of reacting gases in a matrix of solid heat-resistant matter, wherein such reacting...
5316735 Apparatus for producing granulated products  
In a vertical cylindrical casing (1) of the apparatus along the axis thereof a gas-supplying pipe (8) is disposed, the end face (11) of which is disposed above a gas-distributing grating (3) at the...
5313913 Pressurized internal circulating fluidized-bed boiler  
A pressurized internal circulating fluidized-bed boiler is incorporated in a combined-cycle electric generating system in which a fuel such as coal, petro coke or the like is combusted in a...
5311842 Fluidized bed water pipe boiler divided type  
A fluidized bed water tube boiler comprising a fluidized bed combustion section including a fluidized bed formed from a continuous water tube wall, a free-board section for burning volatile...
5307765 Rotary fluid bed used to gasify and combust oil-in water emulsions  
A rotary fluid bed gasifier which comprises: a rotatable drum having a circumferentially extending wall which is permeable to gases; a means for feeding a fluidizing gas through the wall into the...
5308585 Process and apparatus for cooling hot solids coming from a fluidized bed reactor  
Hot solids coming from a fluidized bed reactor are passed through the cooling apparatus and at least in part are recycled to the fluidized bed reactor. In the cooling apparatus the hot solids flow...
5302352 Protected coils for a steam generator  
In a steam generator for recovering heat in a hot fluidized bed of solid particles, wherein generally horizontally oriented coils of the steam generator make a 180° U-bend, the U-bend portion of...
5299532 Fluidized bed combustion system and method having multiple furnace and recycle sections  
A fluidized bed combustion system and method in which a plurality of enclosures, each having a furnace section and integral recycle section are joined using common walls. Openings are provided in...
5297622 Method for cooling of dust separated from the flue gases from a PFBC plant  
A method is provided for cooling of particulate material from a combustion plant, especially intended for cooling of fine-grained dust which has been separated from the flue gases from a PFBC power...
5293843 Combustor or gasifier for application in pressurized systems  
A fluidized bed combustor or gasifier has a combustion chamber(s) with a non-symmetrical horizontal cross section. The chamber may be trapezoidal, hemispherical, or may have five or more side walls...
5282506 Process based on circulating fluidized bed technique for cooling gases, and a circulating fluidized bed cooler used in the process  
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...