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| Number | Title | Issue Date |
| 8071047 | Centerpipe design for radial flow reactor A device is presented for use as a centerpipe in a radial flow reactor, or for a radial flow adsorption bed. The device includes a plurality of stacked slotted cylindrical sections and frustums. The design retains the particles in a solid particulate bed that can be... | 12/06/2011 |
| 7988931 | Support grid for filling material packings and method for mounting the support grid A support grid for filling material packings includes plate-shaped support strips which extend perpendicularly to an installation plane and are connected in a cruciform manner to spacer strips also extending perpendicularly to the installation plane. Contour strips ... | 08/02/2011 |
| 7794676 | Reactor for a catalytic conversion reaction Reactor for a catalytic conversion reaction comprising within a catalyst housing a perforated catalyst support plate supporting a catalyst bed, the perforated catalyst support plate being supported by a plurality of elongated support elements, and catalyst particles... | 09/14/2010 |
| 7563419 | Method and device for supporting catalyst gauzes in an ammonia oxidation burner A support system for catalyst gauzes in an ammonia oxidation burner and a method of reducing movement of particulate ceramic material due to thermal dilatation includes the catalyst gauzes (1) and possibly support screens (2) being supported by ceramic... | 07/21/2009 |
| 7452516 | Distribution device The invention relates to a distribution device (1) for distributing liquid over an underlying catalyst bed comprising a horizontal collection tray (2) provided with at least one gas chimney (3) for upward or downward passage of gas and with liqu... | 11/18/2008 |
| 7393510 | Decontamination of process streams A method for removing contaminants from a process stream that includes the use of reticulated material to filter the process stream in a vessel located upstream of a process unit. The reticulated material can be used with other conventional filter media within the v... | 07/01/2008 |
| 7364707 | Packing element comprising at least one recessed portion of specific volume and method of using thereof A packing element for use in a fluidised bed includes a continuous surface with at least one recessed portion. The recessed portion has a volume in the range of 0.2 to 30% of the volume of the packing element itself. ... | 04/29/2008 |
| 7300635 | Catalytic reactor A catalytic reactor comprises a plurality of fluid-impermeable plates defining flow channels between them. Tight fitting within each flow channel is a sheet of corrugated material whose surfaces are coated with catalytic material. At each end of the flow channels ar... | 11/27/2007 |
| 7290319 | Methods for installing a fuel pellet locking retainer in a nuclear fuel rod A method for installing a locking retainer in a tube to maintain internal components within the tube under compression comprising the steps of: a) providing an elongated retainer spring having large and small diameter sections with the large diameter section of a si... | 11/06/2007 |
| 7244399 | Grid construction for a fluidized bed reactor A grid construction for a fluidized bed reactor, the reactor including a reaction chamber defined by substantially vertical walls, in which a fluidized bed of solid particles is maintained, and a windbox under the reaction chamber, in a lower portion of the reactor.... | 07/17/2007 |
| 7235218 | Catalytic reactors A compact catalytic reactor comprises a stack of plates (72, 74, 75) to define a multiplicity of first and second flow channels arranged alternately in the stack; each flow channel in which a chemical reaction is to take place is defined by straight-through c... | 06/26/2007 |
| 7226568 | Plural conduit replaceable outer support structure for radial flow system Replaceable outer support structure 38 for a particulate material bed 70 in a radial flow system comprises a plurality of hollow conduits 50, 250, 260, at least some of which have a generally trapezoidal cross-section. The conduits are arranged ... | 06/05/2007 |
| 7226565 | Gas-phase fluidized-bed reactor Ethylenically unsaturated monomers are polymerized in a gas-phase fluidized-bed reactor comprising a reactor space (1) in the form of a vertical tube, a calming zone (2) adjoining the upper part of the reactor space, a circulated gas line (3), a... | 06/05/2007 |
| 7223373 | Catalytic reactor A catalytic reactor comprises a plurality of sheets defining flow channels between then. Within each flow channel is a foil of corrugated material whose surfaces are coated with catalytic material. The flow channels extend in transverse dire options, but the foils a... | 05/29/2007 |
| 7201883 | Catalytic reactor A catalytic reactor comprises a plurality of sheets defining flow channels between them. Within each flow channel is a foil of corrugated material whose surfaces are coated with catalytic material. Flow channels for a first gas extend in oblique directions relative ... | 04/10/2007 |
| 7189271 | Catalytic reactor A catalytic reactor comprises a plurality of thin tray-like metal sheets each with a peripheral rim and arranged as a stack to define first gas flow channels between adjacent sheets, alternating with second gas flow channels between adjacent sheets, so as to ensure ... | 03/13/2007 |
| 7186388 | Catalytic reactor A catalytic reactor comprises a stack of sheets defining flow channels between them. Within each flow channel is a flexible wire structure whose surfaces are coated with catalytic material. Flow channels for a first gas extend along S-shaped curved paths whereas the... | 03/06/2007 |
| 7179426 | Large catalyst activator A catalyst activator vessel for heat conditioning a catalyst is disclosed. The activator vessel includes inner and outer vessels, a perforated, normally generally horizontal grid plate within the inner vessel, and a fluid path extending through the grid plate within... | 02/20/2007 |
| 7163666 | Thermally tolerant support structure for a catalytic combustion catalyst The present invention provides a support structure for a catalyst disposed within an outer containment. Several unique arrangements and connections of supporting struts that form the structure provide a number of significant advantages and improvements. The support ... | 01/16/2007 |
| 7144560 | Frame structure for high-temperature denitration apparatus Each of vertical frame members which constitute a frame body of a high-temperature denitration apparatus and which are erected in a spaced-apart relationship in a direction of exhaust gas flow is provided by a pillar member. The pillar member is an integral combinat... | 12/05/2006 |
| 7141224 | Vessels and covers Vessels, or housings, and covers therefor are detailed herein. Loads and load-bearing surfaces exist principally at the periphery of the covers, by contrast with centralized loading utilized in other designs. In some versions of the vessels, a cover is sandwiched, a... | 11/28/2006 |
| 7056806 | Microfeature workpiece processing apparatus and methods for controlling deposition of materials on microfeature workpieces The present disclosure provides methods and apparatus useful in depositing materials on batches of microfeature workpieces. One implementation provides a method in which a quantity of a first precursor gas is introduced to an enclosure at a first enclosure pressure.... | 06/06/2006 |
| 6984365 | Reactor distribution apparatus and quench zone mixing apparatus A quench zone mixing apparatus that occupies a low vertical height and has an improved mixing efficiency and fluid distribution across the catalyst surface includes a swirl chamber, a rough distribution network, and a distribution apparatus. In the swirl chamber, re... | 01/10/2006 |
| 6858191 | Thin tube plate and chamber support for a chemical reactor or heat exchanger A device used as a chemical reactor or heat exchanger in general, with a thin tube plate, of the type in which at least one pipe is connected to a tube plate, this tube plate being closed by a chamber with a container function, wherein this chamber is produced by a ... | 02/22/2005 |
| 6699438 | Gas-phase fluidized-bed reactor Ethylenically unsaturated monomers are polymerized in a gas-phase fluidized-bed reactor comprising a reactor space (1) in the form of a vertical tube, a calming zone (2) adjoining the upper part of the reactor space, a circulated gas line (3), a circulate... | 03/02/2004 |
| 6699443 | Liquid distributor with cleaning mechanism A liquid distributor, for a substantially vertical reactor with a fixed bed catalyst, in the form of a channel distributor with drainage outlets and further comprising an internal cleaning mechanism with cleaning elements to be lowered into the openings o... | 03/02/2004 |
| 6652714 | Drill stem stabilizer A drill stem stabilizer used in a decoking apparatus that includes a drill stem and a drilling structure on which the drill stem is supported for vertical movement above and within a coke drum. The stabilizer includes a bearing and a support member. The b... | 11/25/2003 |
| 6589491 | Salt platform A salt platform (500) is disclosed which incorporates a top member (502), a bottom member (504) and a plurality of vertical spacing members (506). The top member 502 is preferably formed as an integral molding. The bottom member (504) is preferably identi... | 07/08/2003 |
| 6495045 | Solid substance removing device A solid substance removing device comprising a body provided with a fluid inlet pipe and a fluid outlet pipe and a filtering part disposed between the fluid inlet pipe and the fluid outlet pipe inside said body, the filtering part having (a) a thickness i... | 12/17/2002 |
| 6399032 | Plant for continuously regenerating foundry sand and associated method The plant for continuously regenerating foundry sand comprises a combustion chamber, in which a combustible gas is added to the sand, and a cooling chamber, in which the sand coming from the combustion chamber is cooled, both chambers being provided with ... | 06/04/2002 |
| 6387334 | Balanced flow resistance OCR distributor cone The invention comprises an OCR catalyst reactor which includes passive spheres and catalyst particles having substantially the same size and separated on opposite sides of a distributor cone by a screen. The use of passive spheres of substantially the sam... | 05/14/2002 |
| 6379630 | Salt grid for water softening system brine tank A salt grid for supporting salt above a portion of a concentrated brine solution in a brine tank for use in a water softening system. The grid comprises first and second platforms disposed at first and second elevational levels with respect to the vertica... | 04/30/2002 |
| 6241951 | Material fluidizing assembly In order to prevent material from passing into a plenum chamber, an assembly for fluidizing the material includes a deck supported above the plenum chamber. The plenum chamber has an intake in communication with a source of pressurized air, and the deck i... | 06/05/2001 |
| 6197265 | Gas distribution system for a two-zone fluidized bed reactor The present invention provides an improved method for constructing a gas distribution system which creates two distinct reaction zones within the same fluidized bed. The invention provides for the distribution of one type of gas at the bottom of the fluid... | 03/06/2001 |
| 6090351 | Moving bed chamber with a regularized flow A chamber comprising a moving bed of solid particles, delimited by at least one screen with thickness e, circulating in a downward direction substantially parallel to the screen, the bed being traversed by at least one fluid flowing in the bed in a princi... | 07/18/2000 |
| 6086659 | Radial flow adsorption vessel A radial flow adsorption vessel is disclosed together with a method for assembling such a vessel and a method for manufacturing containment screens having bidirectional flexibility for use in such a vessel. The radial flow adsorption vessel includes a sub... | 07/11/2000 |
| 6027550 | Apparatus and method for removing volatile organic compounds from a stream of contaminated air with use of an adsorbent material An apparatus and method for removing volatile organic compounds (VOCs) from a stream of contaminated air using an adsorbent material. The stream of contaminated air is introduced into an end of a first hollow member which contains the adsorbent material. ... | 02/22/2000 |
| 5942456 | Multi-functional catalytic distillation structure A catalytic distillation structure containing (1) a solid catalytic material comprising a catalyst component and (2) a structure. The total volume of open space for the catalytic distillation structure should be at least 10 volume % and preferably at leas... | 08/24/1999 |
| 5935277 | Reforming reactor, particularly for the water vapor reforming of methanol In a reforming reactor suitable particularly for the water vapor reforming of methanol in mobile applications such as vehicles, a reaction space is filled with a catalyst pellet fill and has a movable reaction space wall which exerts a position-fixing pre... | 08/10/1999 |
| 5891401 | Porous tuyere for fluid bed apparatus A fluidized bed apparatus having a gas distribution plate containing a plurality of tuyeres, which tuyeres provide a uniform gas flow from the gas chamber of the apparatus to the reactor chamber of the apparatus and prevents particulate matter of the flui... | 04/06/1999 |
