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| Number | Title | Issue Date |
| 7875254 | Internal loop reactor and Oxo process using same The invention relates to improvements in internal loop reactors. The reactor of the invention is characterized by a plurality of cooling tubes which form the annulus between the riser and the downcomer path of said internal loop reactor. The reactor also provides im... | 01/25/2011 |
| 7279145 | Multiphase reactor design incorporating filtration system for fixed--bed catalyst A unique reactor configuration especially suitable for interphase mass transfer and mixing of multiple phases, i.e. gas(es), liquid(s), and solid(s) where reaction is catalyzed by a solid catalyst comprises a draught tube reactor wherein the solid catalyst particles... | 10/09/2007 |
| 7261279 | Device for stirring and aerating a liquid in a treatment vessel A device for stirring and aerating a liquid in a treatment vessel may include a funnel disposed in the upper portion of the vessel to form a passage with the vessel. A duct is connected to the funnel and extends toward the bottom of the vessel and includes an openin... | 08/28/2007 |
| 7163630 | Method and apparatus for enhancing filter bed performance In a vessel containing a filter bed and containing a mixed liquor containing suspended solids, a system disturbs/dislodges a sludge mat that settles on the filter bed. Thus, the system controls the sludge mat on the filter bed that otherwise may blind the filter bed... | 01/16/2007 |
| 7150832 | Apparatus for and a method of treating organic waste The apparatus comprises an anaerobic digester for receiving organic waste, an aerobic digester, and a feed pump for pumping effluent from the anaerobic digester to the aerobic digester. The digesters each comprise a reaction vessel and each reaction vessel has a spr... | 12/19/2006 |
| 7135155 | Velocity induced catalyzed cavitation process for treating and conditioning fluids The present invention provides an apparatus and a method for a catalytic cavitation reactor comprising an inner pipe having a wall with plurality of spaced apart radially bored inner pipe holes located thereon. A second pipe having a wall with plurality of spaced ap... | 11/14/2006 |
| 7125529 | Apparatus and process for reacting over two catalyst beds Disclosed is a process for reacting feed in and an apparatus comprising a radial flow reactor including a first catalyst bed disposed between an outer wall and a centerpipe of the vessel and a second catalyst bed disposed within a centerpipe. Also disclosed is a met... | 10/24/2006 |
| 7122161 | Taylor reactor for materials conversion in the course of which a change in viscosity of the reaction medium occurs A Taylor reactor for conducting material conversions, having an external reactor wall (1) located within which there is a concentrically or eccentrically disposed rotor (2), a reactor floor (3) and a reactor lid (4), which together define... | 10/17/2006 |
| 7097766 | Sand filter with rotating vanes The present invention is a media-based fluid filtration system that extends the time between backwashing operations and prevents the agglomeration of filtered particles at the top of the media bed through the use of a plurality of rotating vanes and associated tines... | 08/29/2006 |
| 7022295 | Installation for carrying out a three phase chemical reaction under pressure A gas siphon type reactor (10) is used to carry out a three phase chemical reaction under pressure, such as the reduction of uranyl nitrate to uranous nitrate by hydrogen, in the presence of a catalyst made up of platinum on a silica carrier. The control of t... | 04/04/2006 |
| 6998056 | Process and device for aerating a liquid with gas Apparatus and process for aerating a liquid with gas, the apparatus comprising a pressure vessel including a lower section containing the liquid and an upper section containing a volume of the gas. A pressure connection in the upper section of the pressure vessel ad... | 02/14/2006 |
| 6986832 | Arrangement for mixing flows in papermaking process The invention relates to a method and a mixer for mixing flows of a papermaking process. In the invention, a first flow is conveyed through a tube, and turbulence is generated in it by means of form parts located on the inner periphery of the tube. The mixing zone o... | 01/17/2006 |
| 6648932 | Gasification reactor apparatus A gasification reactor apparatus (10) comprising a gasification vessel (12), a gas-fired combustion chamber (70) and a combination fan and cyclone unit (20) in an upper part (12') of the vessel (12) with two functions: first, the fan (62, 64) impels incom... | 11/18/2003 |
| 6627174 | Axial conveyor and loop reactor containing said axial conveyor An axial conveyor is described, in particular for conveying gas/liquid dispersions, wherein the conveying elements comprise a wall-sweeping edge pointing in the direction of the pressure side of the conveying elements. The axial conveyor is particularly s... | 09/30/2003 |
| 6521205 | Process for the production of hydrogen by thermal decomposition of water, and apparatus therefor The invention provides processes and apparatus for producing hydrogen from water, including the steps of heating water to a water dissociating temperature to form a dissociated water reaction mixture comprising hydrogen gas and oxygen gas. A vortex is for... | 02/18/2003 |
| 6500301 | Apparatus for gasification of spent liquor Arrangement for understoichiometric gasification of spent liquor from chemical pulp production, comprising an upper reactor part (2), which upper reactor part is provided with a burner (5) for the spent liquor and with an internally clad reactor jacket (4... | 12/31/2002 |
| 6447733 | Fluid contact chamber A fluid contactor is taught for mixing and reacting of fluids. Mixing is enhanced by providing a suitable residence time and suitable surface area contact by forming eddy flow within the fluid and thereby the formation of vortexes. Such a contactor does n... | 09/10/2002 |
| 6422736 | Scalable impeller apparatus for preparing silver halide grains A mixer for preparing silver halide grains for photographic use has upper and lower impellers housed in a draft tube. The bottom impeller has flat blades for micromixing silver and halide reactants introduced into the bottom of the draft tube. The upper i... | 07/23/2002 |
| 6346412 | Microbial remediation reactor and process Embodiments of a remediation reactor and mixer/contactor blade for the reactor are shown and described, the reactor (11) being for containing a liquid slurry, suspension or settled bed of solid particles containing microorganisms. Inside the vessel is a s... | 02/12/2002 |
| 6270734 | Multizone downcomer for slurry hydrocarbon synthesis process A downcomer for producing at least two slurries having different solids and gas concentrations from a single three phase slurry of particulate solids and gas bubbles in a slurry liquid has two or more concentric gas and solids disengaging zones, each havi... | 08/07/2001 |
| 6267934 | Process for the manufacture of persalt particles The present invention relates to an apparatus for the continuous manufacture of solid particles of alkali metal persalts by reaction of an aqueous hydrogen peroxide solution with an aqueous solution of an alkali metal salt and crystallization of the persa... | 07/31/2001 |
| 6217830 | Methods and apparatus for separating Fischer-Tropsch catalysts from liquid hydrocarbon product A method of separating a Fischer-Tropsch catalyst from the output slurry of a Fischer-Tropsch bubble column reactor, where the slurry comprises Fischer-Tropsch catalyst particles and liquid hydrocarbon product is disclosed. The method comprises contacting... | 04/17/2001 |
| 6187206 | Thermal plasma reactor and wastewater treatment method The invention relates to a reactor for the treatment of wastewater solutions containing cyanide and other dissolved organic material, having an elongated tube having an entrance (28) and an exit (32), and an energy source (22) for the tube, preferably pos... | 02/13/2001 |
| 6146613 | Method of zeolite synthesis with homogeneous shaking out of the medium, device and application A method is provided for zeolite synthesis from a synthesis medium containing in particular a trivalent aluminum source, a tetravalent silicon source, at least an alkaline or alkaline-earth cation in hydroxide form and water in a reactor containing a soli... | 11/14/2000 |
| 6062547 | Quench vessel for recovering chemicals and energy from spent liquors Provided is a quench vessel containing at least two separate internal vessels. A receiving liquor is contained in the first internal vessel and a washing liquid bath is contained in a second internal vessel.... | 05/16/2000 |
| 6050720 | Stirring apparatus with coaxial stirring impellers The first agitating impeller and the second agitating impeller, which are arranged in the addition solution mixing chamber dipped in the primary component solution stored in the reaction vessel, are rotated independently from each other in the reverse dir... | 04/18/2000 |
| 6051204 | Reagent mixing A method of, and apparatus for, preventing the formation of deposits on surfaces downstream of a mixer in which possibly supersaturated mixtures issuing from the mixer are surrounded by a sheath of unsaturated solution. In an arrangement described, the sh... | 04/18/2000 |
| 6036937 | Method for producing zinc bromide A method for making zinc bromide from metallic zinc and bromine comprising contacting zinc with bromine dissolved in a reaction solvent containing a metal halide salt. During the practice of this method, the reaction temperature is maintained at less than... | 03/14/2000 |
| 6030113 | Mixing apparatus and method for mixing black liquor from cellulose production with ash from flue gases formed from combustion of black liquor A mixing apparatus for mixing black liquor from cellulose production with ash from flue gases which is generated on combustion of black liquor. The mixing apparatus contains a cylindrical tank, a stirrer mechanism having a propeller secured on the upper p... | 02/29/2000 |
| 6030493 | Process for recovering chemicals and energy from cellulose spent liquor using multiple gasifiers Provided is a process for recovering chemicals and energy from spent liquor obtained when producing paper pulp by chemical delignificatation of fibrous raw material. The spent liquor is gasified in at least two reactors, a first and a second stream of sol... | 02/29/2000 |
| 5955041 | Natural circulation reactor and use for producing linear and cyclic acetals This invention relates to a reactor 1 for the continuous production of linear or cyclic acetals, in particular trioxane, dioxolane, tetroxane, dimethoxymethane, diethoxymethane, diethoxyethane and dibutoxyethane. This reactor has internal adjacently arran... | 09/21/1999 |
| 5899566 | Reactor for corrosive reaction mixtures A reactor for corrosive and abrasive reaction mixtures having an upper setion and a conically tapered lower reaction section, with a screw mixer consisting of a jacketed band surrounding a conveyor screw, suspended fron the top of the reactor, and an inle... | 05/04/1999 |
| 5846498 | Reactor system A shell and tube heat exchanger reactor with forced circulation is used to improve heat and mass transfer for exothermic liquid-liquid, gas-liquid and gas-liquid-solid reactions. Enhanced productivity and selectivity are obtained.... | 12/08/1998 |
| 5811259 | Biochemical reactor A biochemical reactor utilizing an immobilized carrier which is useful in applications such as denitrification of waste water and includes a circulation conduit within the interior of the biochemical reactor. A feed conduit feeds recirculating fluid throu... | 09/22/1998 |
| 5779995 | Sludge phase reactor and process for performing sludge phase reactions A reactor is described for exothermic sludge phase reactions which comprises as the heat exchanger an annular chamber which is covered at the top and the bottom by the reaction mass in the reactor, the annular chamber comprising a plurality of vertical pa... | 07/14/1998 |
| 5779996 | Microbial remediation reactor and process Embodiments of a remediation reactor and mixer/contactor blade for the reactor are shown and described, the reactor being for containing a liquid slurry, suspension or settled bed of solid particles containing microorganisms. Inside the vessel is a supply... | 07/14/1998 |
| 5759505 | Method and device for removing sulphur dioxide from a gas A method and a device for removing sulphur dioxide from a gas, preferably a flue gas, by means of an aqueous suspension of an absorbent, preferably limestone, are disclosed. In the method, the flue gas is conducted through a conduit topped with an apertur... | 06/02/1998 |
| 5744105 | Slurry reactor Embodiments of a slurry reactor and slurry mixer/contactor are shown and described. Each embodiment of the reactor includes a vessel for containing a liquid slurry or suspension of particles and microorganisms. In the inside of the vessel, generally along... | 04/28/1998 |
| 5745835 | Process and apparatus for dissolving a mixture of oxides of uranium and of plutonium A process and apparatus for dissolving a mixed oxide or mixture of oxides of uranium and plutonium. The powder is added with nitric acid to a chamber to dissolve uranium oxide, and the solution is circulated through a circuit of the apparatus with a porti... | 04/28/1998 |
| 5726321 | Process for carrying out gas/liquid reactions under avoidance of a continuous gas phase Process for carrying out gas/liquid reactions at from (-50°) to 300° C. and from 0.1 to 100 bar by carrying out the reaction in the absence of a continuous gas phase, and, as a special case, a process for the batchwise reaction of acetylene in the liqui... | 03/10/1998 |
