Patents Assigned to Uhde GmbH
  • Cleaning device for the frame of a coke oven retort
    Patent number: 8486232
    Abstract: A cleaning device for the frame of a coke oven retort has a tool carrier positioned between anchor stands of the coke oven retort and exhibits cleaning apparatuses for the frame of the coke oven retort, sheet-shaped sealing elements being arranged on the tool carrier. The sealing elements are secured to the reverse side of the tool carrier, which side faces away from the coke oven retort. The sealing elements are orientated vertically and completely cover the height of the reverse side. The sealing elements consist of at least one central piece which is immovably fixed to the tool carrier and of side wings, the side wings being connected with the central piece in such a manner as to be rotationally moveable on vertical axes. The side wings are moveable in an adjusting movement in the direction of the coke oven retort against the front surfaces of the anchor stands.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: July 16, 2013
    Assignee: ThyssenKrupp Uhde GmbH
    Inventor: Ralf Knoch
  • METHOD FOR THE GENERATION OF SYNTHESIS GAS
    Publication number: 20130168608
    Abstract: With a method for the generation of synthesis gas by means of gasification of solid or liquid carbonaceous fuels with an oxidation agent containing oxygen, in a reactor, wherein the synthesis gas is passed out of the reactor overhead, and the mineral ash/slag droplets that occur during the reaction are passed out of the reactor downward, in the direction of gravity, it is supposed to be made possible to use a flue-tube boiler, which is clearly less expensive, for heat removal in place of radiant boilers. This is achieved in that the synthesis gas is passed over a hot-gas filter (2), without being cooled, and subsequently passed through a flue-tube boiler (3), for cooling, wherein ash/slag particles precipitated on the hot-gas filter (2) are passed back into the gasification reactor (1), in the direction of gravity.
    Type: Application
    Filed: September 2, 2011
    Publication date: July 4, 2013
    Applicant: THYSSENKRUPP UHDE GMBH
    Inventors: Johannes Dostal, Domenico Pavone
  • Coke oven with optimized control and method of control
    Patent number: 8465626
    Abstract: This invention relates to a coking oven in flat-type construction, a non-recovery or heat-recovery coking oven, which has at least one measuring apparatus for measuring the concentration of gaseous constituents of the coke oven retort, the coke oven hearth and/or the off gas duct, and in which, on the basis of these data, a process control computer determines and regulates the optimal supply of primary and/or secondary air. Also embraced by the invention is a coking method employing a coking oven of this kind.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: June 18, 2013
    Assignee: Uhde GmbH
    Inventors: Franz-Josef Schuecker, Ronald Kim
  • DEVICE AND METHOD FOR SEPARATING A SOLID MATTER-CONTAINING,LIQUID AND PUMPABLE TAR SUSPENSION AND USE OF THE SEPARATED SOLID MATTER FOR PRODUCING COKE
    Publication number: 20130145685
    Abstract: A device for separating a solid matter-containing, liquid and pumpable tar suspension from a coking reaction with direct use of the separated solid matter contained therein. The device consists of a centrifuge, which is arranged in the upper inner region of a carbon-storing container, and the centrifuge is equipped with a feed nozzle for solid matter-containing, liquid tar and with a discharge nozzle for liquid tar centrifugate. In the lower part, the centrifuge is equipped with an outlet for the solid matter contained in the tar, whereby the tar-containing solid matter obtained from the tar suspension does not have to be delivered or transported. Also disclosed is a method is for separating a solid matter-containing, liquid and pumpable tar suspension with delivery-free use of the separated solid matter contained therein using the device and to the use of the coal mixed with the solid matter.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 13, 2013
    Applicant: THYSSENKRUPP UHDE GMBH
    Inventor: Holger Thielert
  • Process and Apparatus for Eliminating NOx and N2O
    Publication number: 20130149225
    Abstract: A process for removing N2O and NOx from offgases by catalytic decomposition of N2O by means of iron-containing zeolite catalysts and catalytic reduction of the NOx by means of reducing agents, the deNOx stage connected downstream of the deN2O stage being operated at inlet temperatures of T<=400° C., and the inlet gas for the deN2O stage comprising water and having a selected N2O/NOx ratio, and the operating parameters of temperature, pressure and space velocity of the deN2O stage being selected so as to result in an N2O degradation of 80 to 98%. Under these conditions, a degree of NOx oxidation of 30-70% is established at the outlet of the deN2O stage, which is defined as the ratio of the molar amounts of NO2 to the total molar amount of NOx. The result of this is that the downstream deNOx stage can be operated under optimal conditions. Also provided is an apparatus for carrying out the process.
    Type: Application
    Filed: May 9, 2011
    Publication date: June 13, 2013
    Applicant: ThyssenKrupp Uhde GmbH
    Inventors: Meinhard Schwefer, Michael Groves, Christian Perbandt, Rolf Siefert
  • Coke oven featuring improved heating properties
    Patent number: 8460516
    Abstract: A coke oven of a horizontal construction of the non-recovery or heat recovery type is shown. The oven has at least one coking chamber, in which laterally vertical downcomers as well as horizontal bottom flues extend underneath the coking chamber for indirect reheating of the coking chamber. At least a part of the interior walls of the coking chamber is configured as a secondary heating source by coating it with a high-emission coating (HEB) that shows an emission degree equal to or higher than 0.9, and consists of the substances Cr2O3 or Fe2O3 or a mixture containing these substances, with the portion of Fe2O3 amounting to at least 25% by weight in the mixture, and with the portion of Cr2O3 amounting to at least 20% by weight in the mixture.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: June 11, 2013
    Assignee: Uhde GmbH
    Inventor: Ronald Kim
  • CRUDE GAS TORCH COMPRISING AN ADJUSTABLE OPENING CROSS-SECTION FOR FLARING COMBUSTIBLE GASES AND METHOD FOR BURNING CRUDE GASES
    Publication number: 20130143170
    Abstract: A device for flaring combustible gases, having an adjustable opening cross-section, and three tubes arranged about a common longitudinal axis. The tubes are arranged at least in some sections in a common cross-sectional plane an inner tube is designed as a gas introduction tube and has an opening that ends at the top in the vertical direction a diaphragm that can be adjusted in the cross section, through which the gas stream can be closed or regulated and which is fitted with an automatable mechanism for adjusting the opening cross-section. The device typically contains also at least one air guiding plate, feed devices for an inert gas and an ignition mechanism, thereby ensuring a high reliability for flaring the gas and a low emission of nitrogen oxides and soot. A method for operating the device which is suitable for flaring crude gases which are to be combusted is also disclosed.
    Type: Application
    Filed: August 16, 2011
    Publication date: June 6, 2013
    Applicant: THYSSENKRUPP UHDE GMBH
    Inventors: Frank Krebber, Bodo Freimuth
  • Device for electrochemical water preparation
    Patent number: 8444833
    Abstract: The invention relates to an electrolysis device for cleaning acidic waters which comprises a cathode, an anode, and an ion exchange membrane, wherein the membrane is arranged between the cathode and the anode and is attached at least along the entire circumference of its rim, wherein many inlets and outlets are arranged along the upper and lower rim of the electrolysis device which are linked to the cathode space or to the anode space, in such a way that a plug flow, ideally with a laminar profile, is created in the cathode space and in the anode space.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: May 21, 2013
    Assignee: Uhde GmbH
    Inventors: Randolf Kiefer, Karl-Heinz Dulle, Peter Woltering, Stefan Oelmann, Ulf-Steffen Baeumer, Wolfram Stolp
  • WATER DISTRIBUTION SYSTEM IN A GASIFICATION REACTOR
    Publication number: 20130118587
    Abstract: A water distribution system in a gasification reactor for carrying out a slag-forming entrained flow process is disclosed having a water screen as a water distribution system with a concentric annular distributor used in conjunction with an axially symmetrical deflecting surface having a concavely curved cross-section. The annular distributor has a water intake and the annular distributor has openings for water to be discharged in jets directed onto the inside of the concavely curved deflecting surface. The water leaving the deflecting surface is conducted downward into the interior of the reactor.
    Type: Application
    Filed: February 23, 2011
    Publication date: May 16, 2013
    Applicant: THYSSENKRUPP UHDE GMBH
    Inventor: Johannes Kowoll
  • APPARATUS AND PROCESS FOR THE DISCHARGE OF QUENCHED OR UNQUENCHED COKE FROM A COKE QUENCHING CAR INTO A RECEIVING DEVICE
    Publication number: 20130118884
    Abstract: An apparatus for the discharge of quenched or unquenched coke from a coke quenching car into a receiving device, providing that there is an extension of the pusher machine beside at least one coke-oven chamber, which is arranged in one line with the coke-oven chambers, and which is to be operated by the pusher machine, and that there is a receiving device behind the quenching car as seen from the coke-oven battery into which the coke can be pushed from the quenching car by the extension, the receiving device preferably being a wharf. A process for the discharge of the hot coke from a coke quenching car into a receiving device is also disclosed. Capacity bottlenecks of the quenching equipment are compensated so that the coke need not stay in the coke-oven chamber after the end of the coking process, or disturbances of the quenching equipment can be compensated temporarily.
    Type: Application
    Filed: November 12, 2010
    Publication date: May 16, 2013
    Applicant: THYSSENKRUPP UHDE GMBH
    Inventor: Sven Badura
  • Device for removing fine-grained or dust-like solids from a container
    Patent number: 8430950
    Abstract: A device for removal of fine-grained or dust-like solids from a container that is to be pressurized or is pressurized, whereby the container is equipped with a double-walled discharge cone or funnel, avoids the use of porous materials, such as sintered metals or the like, while making available good conveyance properties in the transfer funnel, without restricting the grain sizes of the material, in each instance, whereby even particle-charged gas can be used for conveyance. The gas exit openings are larger than the largest particles of the solid to be removed, and the gas exit openings are provided with a pipe connector or gas feed channel that projects into the interior of the ring chamber and has at least one angle with an imaginary horizontal plane, and the gas feed channel is part of a retention device for preventing solid from trickling into the ring chamber.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: April 30, 2013
    Assignee: ThyssenKrupp Uhde GmbH
    Inventors: Eberhard Kuske, Stefan Hamel
  • REMOVAL OF THERMAL STABLE SALTS FROM ORGANIC SOLVENTS
    Publication number: 20130098245
    Abstract: A Method for removing salts, which cannot be thermally regenerated in a temperature range from 0°-200° C., from organic solvents in aqueous solution by evaporation, wherein the normal boiling point of the organic solvents is higher than water. The organic components contained in the solvent and the salt-like components which are contained in the organic components are enriched by evaporating water and a portion of the organic components in a liquid phase which is formed in a first container. The salt-like components are concentrated in the liquid phase which is forming in the second container, and a partial stream of the liquid phase which is formed in the second container is discharged from the second container.
    Type: Application
    Filed: January 29, 2011
    Publication date: April 25, 2013
    Applicant: THYSSENKRUPP UHDE GMBH
    Inventor: Johannes Menzel
  • Slag discharge device of a coal gasification reactor
    Patent number: 8424785
    Abstract: A device is disclosed for removing slag from a coal gasification reactor and to a slag water bath enclosed by the reaction vessel. The slag is discharged by a lock-type transfer vessel arranged downstream of the slag bath. The lock-type transfer vessel comprises one upper and one lower cylindrical section, the upper cylindrical section having a diameter larger than that of the lower cylindrical section and both sections being connected with each other via a tapered section which preferably is conical and the angle of the cone being similar to that of the angle of repose of the slag. A process for removing slag from a coal gasification reactor and a slag water bath housed by the reaction vessel is also disclosed. The device permits a discharge of slag in a lock-type transfer vessel and precludes formation of slag incrustations in the lock-type transfer vessel.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: April 23, 2013
    Assignee: UHDE GmbH
    Inventor: Christoph Hanrott
  • PROCESS FOR REMOVING, ISOLATING AND PURIFYING DICARBOXYLIC ACIDS
    Publication number: 20130096343
    Abstract: A process for removing, isolating and purifying dicarboxylic acid from fermentation broths, which includes the following steps: 1) removal of the biomass and any solids present from the fermentation broth in two successive stages, 2) removal of the dicarboxylic acid solution from the biomass-free fermentation broth by simulated moving bed (SMB) chromatography, 3) fine purification of the dicarboxylic acid solution, 4) multistage evaporative concentration and crystallization, and 5) separation and drying of the crystals.
    Type: Application
    Filed: May 31, 2011
    Publication date: April 18, 2013
    Applicant: THYSSENKRUPP UHDE GMBH
    Inventors: Wolfgang Tietz, Joachim Schulze
  • ELECTRODE FOR ELECTROLYSIS CELLS
    Publication number: 20130087465
    Abstract: An electrode of an electrolysis cell for gas-producing electrochemical processes, which includes a plurality of horizontal lamella elements which in the manner of a flat C-profile consist of a flat central part and one or more flank parts, where one or more transition regions of any shape are arranged between the flat central part and the one or more flank parts, where the lamella elements have a plurality of through-openings, where the lamella elements have a flat surface without structural raised regions and depressions and the flat central part has a plurality of through-openings which are arranged in rows and arranged diagonally to one another.
    Type: Application
    Filed: November 28, 2012
    Publication date: April 11, 2013
    Applicant: THYSSENKRUPP UHDE GMBH
    Inventor: THYSSENKRUPP UHDE GMBH
  • Method and system for removing slag, particularly slag that occurs during synthesis gas extraction, from a slag bath container
    Patent number: 8414780
    Abstract: With a method for removing slag, particularly slag that occurs during synthesis gas extraction, from a slag bath situated in a pressurized container, into a collection container for the slag, below the slag bath in the direction of gravity, a device for breaking up the slag is provided below the slag bath, and a sluice valve is provided between the containers. A space filled with a gas bubble, which space stands in contact with the liquid in the containers, particularly a ring space or a separate container, is provided, in which the pressure of the gas bubble is regulated by supplying gas. At least a part of the water situated in the slag sluice/collection space flows through the slag bath valve when the latter is opened, in the direction of the slag bath, counter to the direction of gravity.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: April 9, 2013
    Assignee: ThyssenKrupp Uhde GmbH
    Inventors: Johannes Kowoll, Eberhard Kuske
  • Device and method for dosing or shutting off primary combustion air in the primary heating room of horizontal coke-oven chambers
    Patent number: 8409405
    Abstract: Dosed proportioning and cutoff of combustion air into the primary heating space of a horizontal coke oven is provided by apertures in the ceiling of the coke oven chamber, the apertures covered with a withdrawable cover device which controls the amount of air admitted, manually or in an automatic mode. By way of this device, ventilation of a coke oven chamber with primary air can be so controlled that primary air is introduced in an exactly dosed manner and, depending on its place of installation, exactly distributed into the primary heating space of a coke oven chamber.
    Type: Grant
    Filed: February 13, 2010
    Date of Patent: April 2, 2013
    Assignee: ThyssenKrupp Uhde GmbH
    Inventors: Ronald Kim, Alfred Mertens
  • Removal of ammonia nitrogen, ammonium nitrogen and urea nitrogen by oxidation with hypochlorite-containing solutions from exhaust air in plants for producing ammonia and urea
    Patent number: 8398945
    Abstract: Process for scrubbing out ammonia nitrogen and/or ammonium nitrogen and/or urea nitrogen from exhaust gases enriched with these nitrogen compounds in plants for producing ammonia or urea, wherein the nitrogen compounds first form with a hypochlorite-containing solution in a scrubber an intermediate which under acidic or neutral reaction conditions is reacted to form elemental nitrogen and salt, and the reaction of the nitrogen compounds to form elemental nitrogen and salt proceeds in a pH range of 4 to 6.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: March 19, 2013
    Assignee: Thyssenkrupp Uhde GmbH
    Inventors: Helmut Gehrke, Dennis Lippmann
  • Device for preventing corrosion on a gas inlet nozzle during nitric acid condensation
    Patent number: 8398933
    Abstract: By a method and a device for preventing corrosion on and in the region of a gas inlet nozzle during nitric acid condensation, contact of the condensing gas with the nozzle and with the surroundings of the nozzle are supposed to be minimized. This is achieved in that the gas inlet nozzle has a sleeve on the inside in the transition region to the interior of the condenser, by which sleeve a gas inlet orifice in the form of an annular gap is formed, whereby the annular space is provided with at least one feed opening for secondary air, so that an enveloping flow of secondary air is produced around the entering NO gas.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: March 19, 2013
    Assignee: ThyssenKrupp Uhde GmbH
    Inventor: Rainer Maurer
  • METHOD FOR COLLECTING RESIDUAL COKE FROM NON-RECOVERY AND HEAT-RECOVERY COKE OVENS
    Publication number: 20130062187
    Abstract: A method is disclosed for collecting so-called residual coke from a coke oven chamber while the door of the coke oven chamber is being opened. A collecting device is moved up against a guide plate arranged under the door of the coke oven chamber before the door of the coke oven chamber is opened, and the coke that falls out of the coke oven chamber falls across the guide plate into a collecting device. The collecting device is moved to a horizontal position after the coke has been collected so that the upper edge of the collecting device is at the height of the bottom of the coke oven chamber. The push-out device of the coke oven operating machine moves over the collecting device between the suspensions so that the coke is pushed out of the collecting device back into the coke oven chamber.
    Type: Application
    Filed: February 10, 2011
    Publication date: March 14, 2013
    Applicant: THYSSENKRUPP UHDE GMBH
    Inventor: Sven Badura