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| Number | Title | Issue Date |
| 7410356 | Circulating fluidized bed boiler having improved reactant utilization A circulating fluidized bed boiler having improved reactant utilization. The circulating fluidized bed boiler includes a circulating fluidized bed having a dense bed portion; a lower furnace portion adjacent to the dense bed portion; and an upper furnace portion, wh... | 08/12/2008 |
| 7347978 | Electrically heated catalyst support plate and method for starting up water gas shift reactors A heated catalyst support device for a reactor including a reactor vessel containing a bed of catalyst particles. The device includes a permeable support plate having a channel extending therethrough, where the support plate is adapted to contact the bed of catalyst... | 03/25/2008 |
| 7275737 | Device for simultaneously cooling and removing liquid from a gas from a compressor Device for simultaneously cooling and removing liquid from compressed gas of a compressor element (1) or of several compressor elements (1) which are connected either or not in parallel or in series, which device includes a pressure vessel (2) w... | 10/02/2007 |
| 7240639 | Method of and an apparatus for recovering heat in a fluidized bed reactor A fluidized bed reactor, comprising a furnace, a heat exchange chamber, a substantially vertical discharge channel connected to the lower part of the heat exchange chamber for removing particulate material from the heat exchange chamber to the furnace, and a substan... | 07/10/2007 |
| 7194983 | Circulating fluidized bed boiler A circulating fluidized bed boiler including a furnace, a separator which is connected to the furnace to separate fluidized bed material from a flow leaving the furnace, as well as a return duct between the separator and the furnace to return the separated fluidized... | 03/27/2007 |
| 7179312 | Inhibiting of erosion of vessls A process vessel includes a body defining an interior vessel surface and a fixed catalyst bed in the body. A retainer is provided on the fixed catalyst bed to retain the fixed catalyst bed in position. The retainer defines at least one trapping formation at or in cl... | 02/20/2007 |
| 7128136 | Radial flow heat exchanger A radial flow heat exchanger for heating or cooling a fluid includes a sealed fluid manifold for passage of fluid. A sealed fluid receiving hub is spaced interiorly of the interior peripheral portion of the manifold and includes a passageway for passage of fluid int... | 10/31/2006 |
| 7108835 | Fischer-tropsch slurry reactor cooling tube arrangement An arrangement of cooling tubes within a Fischer-Tropsch slurry reactor simplifies removal and reinstallation of cooling tubes for reactor maintenance. ... | 09/19/2006 |
| 7096931 | Increased heat exchange in two or three phase slurry Ribbed heat exchange tubes in which the aspect ratio of the ribs is less than 5, provide greater indirect heat exchange than conventional heat exchange tubes with or without fins, when used in a slurry comprising a liquid phase, in which is dispersed flowing gas bub... | 08/29/2006 |
| 7077888 | Device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants The invention relates to a device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants, comprising at least one dust filter via which the flue gases are guided, and by means of which the dust from the flue gases can be ... | 07/18/2006 |
| 6997250 | Heat exchanger with flow director Heat exchangers, constructed in accordance with principles of this invention, comprise a plurality of first passages, for transporting a first fluid or gas therethrough, and one or more second passages for transporting a second fluid or gas therethrough. The second ... | 02/14/2006 |
| 6962676 | Method and apparatus in a fluidized bed heat exchanger A method and an apparatus in a fluidized bed heat exchanger including a heat exchange chamber having a fluidized bed of solid particles, heat transfer surfaces, an inlet, and an outlet. Particles are fed through the inlet onto the upper surface of the bed of solid p... | 11/08/2005 |
| 6915751 | Method and apparatus for processing a pulverulent or particulate material In a fluid bed apparatus in which a layer of pulverulent or particulate material is fluidized by means of fluidizing gas which is introduced through openings in a bed plate in a first plurality of streams of flows of gas, means are provided for introducing a second ... | 07/12/2005 |
| 6911185 | Fluidized-bed reactor for the oxychlorination of ethyene, oxygen and HCl A fluidized-bed reactor for the oxychlorination of ethylene, oxygen and HCL, comprises a heat exchanger, having tube packets in the fluidized-bed for releasing the heat evolved from exothermic reaction to a heat-transfer medium in the tube packets, in particular to ... | 06/28/2005 |
| 6911087 | Product discharge and cleaning assembly for an apparatus for coating tablets A fluidized bed apparatus for applying a coating liquid onto the surface of particles includes a vertically disposed cylindrical product container having a peripheral wall, at least one cylindrical partition defining a centrally located up bed region and a periphera... | 06/28/2005 |
| 6782848 | Method in connection with a pipe grate for fluidized bed boiler and a pipe grate A method for adjusting a supply of gaseous medium to a fluidized bed boiler performing a combustion process and including a pipe grate comprising a plurality of pipes. An active area of the pipe grate is adjusted to form at least one inactive bed area that is out of... | 08/31/2004 |
| 6779492 | Circulating fluidized bed reactor device The circulating fluidized bed reactor device comprising a reactor chamber delimited horizontally by walls, a centrifugal separator and a back pass for heat recovery The reactor device allows for the introduction of a fluidizing gas into the reactor chamber and for m... | 08/24/2004 |
| 6698501 | Heat exchangers that contain and utilize fluidized small solid particles Heat exchangers utilizing flat surfaced passages to contact, contain and utilize fluidized small solid particles is provided. Top and bottom woven wire mesh or perforated sheet corrugated with rounded or flat-sided ridges are attached to respective top an... | 03/02/2004 |
| 6681722 | Floored impact-type solids separator using downward expanding separator elements A collection element arrangement is provided having sleeve attachments near their lowermost ends which simulate a continuous sloping surface, or floor. The sleeve attachments upper surfaces forming the floor permit collected solids to flow down the slopin... | 01/27/2004 |
| 6637503 | Lower cyclone heat exchanger A lower heat exchanger for preheating powdered raw materials has a system of cyclones. The exchanger is divided into a high temperature part and a low temperature part, mutually interconnected with an interconnecting tube of hot gas. Lowest member of low ... | 10/28/2003 |
| 6631698 | Circulating fluidized bed reactor A circulating fluidized bed reactor includes a furnace, defined by a substantially vertical and planar first wall, and a particle separator having a return duct adjacent to the first wall. In the lower part of the return duct is arranged a gas seal adjace... | 10/14/2003 |
| 6619383 | Vibrated-bed method and apparatus for heat exchange A vibrated bed of particles is created by vibrating a chamber. Particles are flowed to a ceiling of the chamber and cascade through a gas flowing though the chamber, exchanging heat with the gas. Particles spouted to the ceiling spread there and cascade. ... | 09/16/2003 |
| 6612250 | Method of controlling the temperature of a reaction carried out in a fluidised bed reactor Method of controlling the temperatures of an exothermic process carried out in a suspension of solids in a reactor system formed by a wind box (2), a vertical riser (5), which is essentially not cooled, a particle separator (6), at least one set of recycl... | 09/02/2003 |
| 6609482 | Method in a soda recovery boiler, and a soda recovery boiler In a soda recovery boiler, flue gases are led through a so-called economizer (3) to recover heat from flue gases. The flue gases are cooled in the last stage (3b) of the economizer (3) with a circulation water cooler (4) for flue gases, separate from the ... | 08/26/2003 |
| 6554061 | Recuperative and conductive heat transfer system A recuperative and conductive heat transfer system (10, 10') that is operative to effect therewith the heating within the second portion (20, 20') of the heat transfer system (10, 10') of a "working fluid" flowing through the heat s transfer surfaces (32,... | 04/29/2003 |
| 6532905 | CFB with controllable in-bed heat exchanger A circulating fluidized bed (CFB) boiler has one or more bubbling fluidized bed enclosures containing heating surfaces and located within a lower portion of the CFB boiler to provide a compact, efficient design with a reduced footprint area. The heating s... | 03/18/2003 |
| 6470833 | Method and apparatus in a fluidized bed reactor A fluidized bed reactor includes a furnace defined by side walls, a roof, and a continuous bottom, and has a solid particle bed in the furnace. Vaporizing surfaces form at least two principally vertical chambers. The chambers have a round or polygonal cro... | 10/29/2002 |
| 6415743 | Method of decreasing nitrogen oxide emissions in a circulating fluidized bed combustion system In a combustion installation for burning a fuel, which installation includes a hearth operating as a circulating fluidized bed, and in which installation at least a fraction of the flow of solid particles resulting from the combustion of the fuel in the h... | 07/09/2002 |
| 6415528 | Drying device for drying bulk material A drying device for drying bulk material has one or more storage containers for the bulk material and a heating device for heating the drying air for drying the bulk material. A drying air conduit is connected to the heating device and the storage contain... | 07/09/2002 |
| 6305330 | Circulating fluidized bed combustion system including a heat exchange chamber between a separating section and a furnace section A top-supported circulating fluidized bed boiler system includes a furnace, having sidewalls of a tube wall construction, for combusting fuel and producing combustion products, a particle separator, connected to the furnace, for separating particles from ... | 10/23/2001 |
| 6279513 | Conversion fluid bed chamber assembly A fluid bed chamber assembly that is affixed to or incorporated onto the bottom portion of a combustion chamber of a package boiler assembly to increase combustion efficiency of the boiler. The fluid bed chamber assembly comprises a lower region and an up... | 08/28/2001 |
| 6276441 | Method and regenerator for regenerative heat transfer The present invention relates to a heat transferring device for transferring heat energy from a first gaseous flow into a second gaseous flow. The heat transferring device includes first and second circulating fluidized bed reactors. A first gaseous flow ... | 08/21/2001 |
| 6263958 | Heat exchangers that contain and utilize fluidized small solid particles Heat exchangers that utilize flat surfaced passages to contact, contain and utilize fluidized small solid particles. A variety of flat surfaced small solid particles with high heat transfer surfaces are provided to further enhance the heat transfer rate. ... | 07/24/2001 |
| 6237541 | Process chamber in connection with a circulating fluidized bed reactor A process chamber is placed in connection with a circulating fluidized bed reactor for utilizing internal or external circulation of solid material or both in heat transfer purposes. Said process chamber is located inside the furnace of the circulating fl... | 05/29/2001 |
| 6230633 | Conveyor/cooler of loose materials A conveyor/cooler of hot loose materials produced by fluid bed boilers and various industrial processes includes one or more feeding channels, which are substantially vertical or at any inclination. Because of gravity, the material leaves the combustion c... | 05/15/2001 |
| 6206088 | Heat exchanger system for a boiler having a circulating fluidized bed A heat exchanger system includes a first heat exchanger followed by a second heat exchanger disposed in a dense fluidized bed, the second heat exchanger being made up of a plurality of nests of tubes disposed along the path of the particles in suspension ... | 03/27/2001 |
| 6109342 | Apparatus for carrying out a physical and/or chemical process, such as a heat exchanger Heat exchanger, consisting of a reservoir, having upwardly directed tubes that are flowed through by a liquid to be heated and by fluidized bed particles for cleaning the tubes internally. Connected to the reservoir is an external downcomer (2) for receiv... | 08/29/2000 |
| 6073682 | Apparatus for carrying out a physical and/or chemical process, such as a heat exchanger An apparatus for carrying out a physical and/or chemical process, such as a heat exchanger, including a reservoir in which a series of riser pipes (2) are arranged. Disposed in the reservoir (1) is a fluidized bed of granular material. The apparatus inclu... | 06/13/2000 |
| 6070653 | Cylindrical vessel for separation A separation device comprises a vessel (1) having an essentially circular cylindrical shape around a center axis (2), a first passage (4) provided in the cylindrical wall of the vessel and a second passage (5), provided in the cylindrical wall of the vess... | 06/06/2000 |
| 6027696 | Fluidized catalytic cracking apparatus A fluidized catalytic cracking apparatus for catalytically cracking a heavy hydrocarbon feed to lighter products includes a regenerator shell for heating spent catalyst, the regenerator shell having a bottom riser for introduction of the heavy hydrocarbon... | 02/22/2000 |
