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| Number | Title | Issue Date |
| 8038950 | Fluidized-bed reactor for carrying out a gas-phase reaction A fluidized-bed reactor for carrying out a gas-phase reaction, in which a gaseous reaction mixture flows from the bottom upward through a heterogeneous particulate catalyst forming a fluidized bed and internals are arranged in the fluidized bed, wherein the internal... | 10/18/2011 |
| 7993595 | Apparatus for depositing fluids in a solids flow of a spouted bed apparatus An apparatus for introducing fluids into a solids flow of a spouted bed apparatus is provided. The apparatus includes a spray nozzle which opens into a reaction space of the spouted bed apparatus. A lower region of the reaction space is provided with a rectangular c... | 08/09/2011 |
| 7939025 | Gas distribution plate for fluidized-bed olefin polymerization reactors A gas distribution plate for fluidized-bed, olefin polymerization reactors is provided. In addition to holes for distributing a fluidizing gas, the plate comprises a plurality of hollow projections for introducing a fluid into the fluidized-bed reactor. The hollow p... | 05/10/2011 |
| 7794670 | Method and apparatus for producing polymers Method and apparatus of producing polymers in a gas phase polymerization reactor, which has an elongated reactor body, and an essentially vertically disposed central axis. The reactor comprises an upper part and a lower part, which are separated by a distribution pl... | 09/14/2010 |
| 7531142 | Multifunctional entry device for a downward flow tube reactor A device and a method for operating it for application in a vertical tube reactor with downward flow (downer), has the aim of ensuring the intimate mixing of the solid particulate catalyst with a reagent fluid. Homogeneous distribution of catalyst is due to the use ... | 05/12/2009 |
| 7442345 | Reactor apparatus A new reactor apparatus that can be used to carry out chemical reactions in a fluidized catalyst bed at high temperatures with reduced afterburning or other undesirable downstream side reactions. ... | 10/28/2008 |
| 7414166 | Minimizing catalyst backflow in fluidized bed reactors This invention provides feed introduction devices, and processes for using same, which minimize catalyst clogging. In particular, the invention is to a feed introduction device having a first end in fluid communication with a feed source, a second end in fluid commu... | 08/19/2008 |
| 7399450 | Cyclone layer reactor A fluidized-bed reactor is disclosed. The fluidized-bed reactor steadies the gas flow through the fluidized bed chamber of the reactor. The swirl chamber of the reactor consists of a conical housing in which a conical insert is also situated. This creates an annular... | 07/15/2008 |
| 7332132 | Stripping apparatus and process An apparatus and process for stripping gases from solids comprises a structured packing in a stripping section of a vessel. The structured packing comprises a plurality of corrugated ribbons with each corrugated ribbon having at least two faces angular to each other... | 02/19/2008 |
| 7328805 | Method and system for beneficiating gasification slag The present invention provides a method of beneficiating slag, including mixing the slag with water to form a slurry. The slurry is screened through a first screen to remove a first portion of material and then screened through a second screen to remove a second por... | 02/12/2008 |
| 7270791 | Angular flow distribution bottom head An improved angled annular deflector for a gas-phase polymerization reactor and improved method for delivery of a stream of polymerizable fluid to a gas-phase polymerization reator. The angled annular deflector has an outer surface with a conical shape, an inner sur... | 09/18/2007 |
| 7262263 | Method and apparatus for producing solid-state polycondensed polyesters The present invention relates to a method for producing solid-state polycondensed polyesters by using crystallization with or without subsequent solid-state polycondensation for producing bottles, sheets, films, and high-tenacity technical filaments. ... | 08/28/2007 |
| 7250140 | FCC reactor A fluid catalytic reactor vessel having at its upper end a single centrally positioned primary cyclone having a gas-solids inlet fluidly connected to the downstream end of a fluid catalytic riser, which riser is positioned externally from a fluid catalytic reactor v... | 07/31/2007 |
| 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 |
| 7241425 | Fluidized bed apparatus for batch-by-batch or continuous process control and method for operating a fluidized bed apparatus A fluidized bed apparatus for batch-by-batch or continuous process control is provided that allows the processes in the fluidization region to be influenced as desired, especially in terms of material movement and dwell time. The fluidized bed apparatus is formed fr... | 07/10/2007 |
| 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 |
| 7220397 | Modified oxygen reduced valve metal oxides Pressed material such as anodes are described and formed from oxygen reduced oxide powders using additives, such as binders and/or lubricants. Methods to form the pressed material are also described, such as with the use of atomizing, spray drying, fluid bed process... | 05/22/2007 |
| 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 |
| 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 |
| 7168183 | Tunnel-like apparatus for treating particulate material An apparatus for treating particulate material has an elongated, tunnel-like process chamber, along which the material to be treated can be moved from an inlet to an outlet. A bottom of said process chamber is designed in that two flows of introduced process air are... | 01/30/2007 |
| 7153478 | Downflow catalytic cracking reactor and its application A downflow catalytic cracking reactor, comprising the following components: catalyst delivery pipe (1), reactor top cover (2), feed nozzle (3), reactor vessel (6), downflow reaction pipe (9), the upper end of the outer body is clos... | 12/26/2006 |
| 7138094 | Reactor for catalytic treatment of a particle-containing gas An up-flow reactor for the catalytic treatment of particle containing gas comprising at least one fixed catalytic bed; at least one drain pipe located upstream of the fixed catalytic bed, the drain pipe disposed within the reactor and a dust rectifier located downst... | 11/21/2006 |
| 7118715 | Stripping process with disproportionately distributed openings on baffles A baffle-style stripper for an FCC process comprising sloped baffles in which a greater volumetric flow rate of stripping medium permeates openings in a bottom section of the baffle than through a top section of the baffle for low catalyst flux stripping operations.... | 10/10/2006 |
| 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 |
| 7101516 | Regenerator Described is a catalyst regenerator system that includes a regenerator vessel within which is a verticaliy extending partition that divides a fluidized bed zone of the regenerator vessel into a dense phase fluidized bed zone and a fast-fluidized bed zone. Apparatus ... | 09/05/2006 |
| 7101474 | Method and process with refractory shelf for hydrodynamic mixing zone A shelf is incorporated into a typical FCC riser that permits the tips of the nozzles to extend past the wall of the riser while preventing the tips from promoting coke build-up and protecting the tips from erosion. The shelf can be part of an angled section that of... | 09/05/2006 |
| 7029633 | Method and apparatus for reducing uranium trioxide Uranium trioxide is reduced to uranium dioxide using microwave radiation or radiofrequency radiation directed in such a way that the radiation encounters an interface between uranium trioxide and the uranium-containing reduction product without first having passed t... | 04/18/2006 |
| 7025874 | Nozzle/mixer assembly A bitumen/steam pre-mixer and atomizing nozzle combine to produce a jet of minute liquid droplets (bitumen) in carrier gas (steam). The jet is injected into a draft tube mixer positioned in a fluid bed of hot coke particles suspended in steam and contained within a ... | 04/11/2006 |
| 7011740 | Catalyst recovery from light olefin FCC effluent A method and system for recovering fines from a light FCC-type effluent gas. Cracked gases from the reactor are cooled by direct contact with circulating oil in an oil quench tower. The circulating oil also washes out the catalyst fines carried with the reactor effl... | 03/14/2006 |
| 7008527 | Process for catalytic cracking two integrated cracking zones of different degrees of severity followed by a cooling zone The invention consists in implanting an inner tube fed at its lower portion by a fraction of regenerated catalyst inside a riser (1) of an FCC unit that is fed by catalyst via a line (14) and a feedstock via a line (3), whereby the fluid that al... | 03/07/2006 |
| 7001573 | Process for removing fine dust from a fluidized-bed reactor, in particular for the oxychlorination of ethylene By a process for removing fine dust from a fluidized-bed reactor, in particular for the oxychlorination of ethylene, is intended to permit specific control of the amount of fine dust particles in a reactor while reducing the height of the reactor and the same time f... | 02/21/2006 |
| 6971785 | Canister assembly for powder delivery system A powder paint canister assembly includes a canister body having a color changer manifold, a purge ring, and at least one venturi pump attached thereto. The canister body interior includes a fluidization plate and a fluidization distribution plate adjacent a prefera... | 12/06/2005 |
| 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 |
| 6958376 | Inlet distribution device for upflow polymerization reactors A polymerization process and polymerization reactor are provided. For example, a polymerization process is described, including passing a feed stream including liquid and gas through a feed stream inlet disposed proximate an upflow polymerization reactor, passing th... | 10/25/2005 |
| 6939384 | Inhibiting of erosion of vessels A method of inhibiting erosion of an interior surface of a process vessel by solid objects carried in a fluid passing over the interior surface includes providing at least one formation at or in close proximity to the interior surface to interfere with the flow of t... | 09/06/2005 |
| 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 |
| 6905654 | Method and apparatus for reducing static charges during polymerization of olefin polymers The present invention relates to a method and apparatus for controlling static charges in a fluidized bed olefin polymerization reactor. Static charges which develop in the polymer products are measured and, if they fall outside a predetermined range, static charge ... | 06/14/2005 |
| 6903168 | 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... | 06/07/2005 |
| 6878351 | Catalyst support A catalyst support structure e.g. for use in an ammonia oxidation reactor, comprising a series of primary supports (19) disposed above a catalyst bed, a lattice assembly disposed beneath the catalyst bed and on which the catalyst bed rests, said lattice assem... | 04/12/2005 |
| 6835355 | Jetting fluidized-bed with a partitioned distributor and double horizontal nozzles The present invention relates to a partitioned jetting fluidized bed with double nozzles, especially to a jetting fluidized-bed reactor with gas distributor, where a inclined nozzle is fixed at the side wall of the jetting fluidized bed above the gas distributor, an... | 12/28/2004 |
