Patents Assigned to Uhde GmbH
  • Patent number: 9879185
    Abstract: A device for increasing the interior surface of a compact coke charge in a receiving trough, which device increases the interior surface of a coke cake or coke leaving the coking chamber by mechanically breaking apart or roughening it, resulting in a break-up of the coke structure and the formation of crevice-type cavities in the compacted coke charge so that an increased amount of water can flow into the interior of the coke charge during the subsequent quenching step through these crevices, resulting in a high profitability of the method due to reduced quenching times and lower water consumption. A method for increasing the interior surface of a compact coke charge in a receiving trough, which serves to break up a fresh coke cake or to roughen the coke in order to reduce water consumption during quenching is disclosed.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: January 30, 2018
    Assignee: THYSSENKRUPP UHDE GMBH
    Inventors: Ronald Kim, Franz-Josef Schücker
  • Patent number: 9849400
    Abstract: Method of concentrating aqueous alkali and apparatus suitable for this purpose. A very energy-saving method of concentrating aqueous alkali originating, for example, from a chloralkali electrolysis plant and an apparatus suitable for this purpose are described. The method/the apparatus utilizes heat of reaction from the formation of 1,2-dichloroethane and includes multistage concentration of the aqueous alkali, where at least part of the heat required for concentrating the aqueous alkali originates from the plant for preparing 1,2-dichloroethane and at least a further part of the heat required for concentrating the aqueous alkali originates from at least one of the higher stages of the plant for concentrating the aqueous alkali and is used for partial heating of the first stage. The apparatus can be used for retrofitting existing integrated plants made up of a DCE plant and chloralkali electrolysis or in the erection of new plants.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: December 26, 2017
    Assignees: THYSSENKRUPP UHDE GMBH, VINNOLIT GMBH & CO. KG
    Inventors: Michael Benje, Sven Petersen, Michael Kleiber
  • Patent number: 9803919
    Abstract: An apparatus (1) and method for drying polymer powders is described. The apparatus has an inlet (2) and an outlet (3) for the polymer powder, heat registers (5) installed in the interior space (4) and lines (7) for a heated gas (6a) for drying the polymer powder. The lines open into the interior space (4) and are connected to heat exchangers (9) for heating gas (6). The heat exchangers (9) are connected to a plant for the preparation of 1,2-dichloroethane (15) and/or for the preparation of vinyl chloride from 1,2-dichloroethane so that thermal energy from the plant can be utilized for heating the gas (6). The method comprises treatment of a polymer powder with a heated gas (6a) in the drying apparatus (1).
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: October 31, 2017
    Assignees: THYSSENKRUPP UHDE GMBH, VINNOLIT GMBH & CO. KG
    Inventors: Michael Benje, Peter Kammerhofer
  • Patent number: 9738521
    Abstract: The invention relates to a process and apparatus for preparing nitric acid by catalytic oxidation of NH3 by means of oxygen and subsequent reaction of the NOx formed with an absorption medium in an absorption tower, which comprises a catalyst bed for N2O decomposition arranged in the process gas downstream of the catalytic NH3 oxidation and upstream of the absorption tower in the flow direction and a catalyst bed for NOx reduction and effecting a further decrease in the amount of N2O arranged in the tailgas downstream of the absorption tower in the flow direction, wherein the amount of N2O removed in the catalyst bed for N2O removal arranged in the process gas is not more than that which results in an N2O content of >100 ppmv and a molar N2O/NOx ratio of >0.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: August 22, 2017
    Assignee: THYSSENKRUPP UHDE GMBH
    Inventors: Meinhard Schwefer, Rolf Siefert, Jürgen Fuchs, Klaus Ruthardt, Michael Groves
  • Patent number: 9505983
    Abstract: An adjustable chargehole closure for adjusting the closure cover of a charging hole in a coking oven chamber. The adjustable chargehole closure has as an inner frame for a closure cover, and the frame can be rotated both with respect to the closure cover and with respect to an outer frame, designed asymmetrically with respect to a vertical plane, so that the closure cover is displaced along a longitudinal axis when the inner frame is rotated in the horizontal plane. The position of the charging hole opening and the closure cover present therein on the ceiling of a coking oven chamber can thereby be changed without requiring construction measures on the ceiling of a coking oven chamber. The capability is in particular advantageous in order to match the position of the charging hole cover to the precise charging position of the charging machine.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: November 29, 2016
    Assignee: THYSSENKRUPP UHDE GMBH
    Inventors: Manfred Friedrichs, Helmut Dohle
  • Patent number: 9498746
    Abstract: Using a method and installation for separating acid components, dust and tar from hot gases of gasification installations, an economical method using a corresponding installation is to be created, which enables acid compounds HF, HCl, H2S, dust and tar to be reliably separated in the highest possible temperature range. The aim is achieved in that the media flow leaving the gasification at above 700° C. is fed with additives to a desulfurization process and subsequently to a combined cyclone 9 having associated filter cartridges 17 in a common vessel 8, and the gas is withdrawn for further use downstream of the filter cartridges.
    Type: Grant
    Filed: November 13, 2010
    Date of Patent: November 22, 2016
    Assignee: ThyssenKrupp Uhde GmbH
    Inventors: Domenico Pavone, Ralf Abraham
  • Patent number: 9487709
    Abstract: The invention relates to a method of reducing emissions of byproduct gas when charging oven chambers of a battery of coking ovens, on the proviso that the oven chamber (1) to be charged is opened on the machine side (MS) of the battery of coking ovens, and a block of compressed coal (10) is introduced into the opened oven chamber (1). Byproduct gases released during introduction of the block of compressed coal (10) into the hot oven chamber (1), are discharged through a byproduct-gas manifold (11) attached to the oven chamber (1) and are then preferably freed of dust and incinerated. Crude gases formed in the closed oven chambers during coking are discharged through a crude-gas manifold (3) attached to the oven chambers (1) and are passed on for treatment by at least one gas scrubber.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: November 8, 2016
    Assignee: THYSSENKRUPP UHDE GMBH
    Inventors: Martin Reinke, Holger Thielert, Rainer Worberg
  • Patent number: 9458383
    Abstract: A method and a device for breaking up a fresh and hot coke charge in a receiving trough having mobile plate segments, the coke charge being conveyed to a quenching tower in the receiving trough of a flatbed transport car in which the coke charge is cooled down to ambient temperatures by mobile plate segments so that the coke structure is broken up and crevice-type cavities are formed in the compacted coke charge. These crevice-type cavities then allow an increased amount of water to flow into the interior of the coke charge during the subsequent quenching step, resulting in a high profitability of the method, a higher coke quality and a reduced burden on the environment due to reduced quenching times and lower water consumption. A device for carrying out the method is also disclosed.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: October 4, 2016
    Assignee: THYSSENKRUPP UHDE GMBH
    Inventors: Ronald Kim, Franz-Josef Schuecker
  • Patent number: 9427696
    Abstract: Process for removal of salts thermally non-regenerable in a temperature range from 0° C. to 200° C., from organic solvents in an aqueous solution by evaporation, the normal boiling point of organic solvents being higher than that of water, and by enriching the organic constituents existing in the solvent as well as the heat stable salts existing therein in a liquid phase forming by evaporation of water and a portion of the organic constituents of a first vessel, and discharging an evolving vaporous phase from the first vessel.
    Type: Grant
    Filed: January 29, 2011
    Date of Patent: August 30, 2016
    Assignee: THYSSENKRUPP UHDE GMBH
    Inventor: Johannes Menzel
  • Patent number: 9421513
    Abstract: A catalyst-coated support including a sheetlike support, a primer layer applied thereto and composed of nanoparticles composed of silicon oxide-comprising material, and at least one catalyst layer applied to the primer layer. The layers applied are notable for a particularly good adhesive bond strength and can be used particularly efficiently in heterogeneously catalyzed gas phase reactions, especially in microreactors.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: August 23, 2016
    Assignee: THYSSENKRUPP UHDE GMBH
    Inventors: Steffen Schirrmeister, Martin Schmitz-Niederau, Ingo Klüppel, Christoph Filthaut
  • Patent number: 9410480
    Abstract: A synthesis gas (H2+CO) that comes from a gasifier is supposed to be used in more efficient and optimal manner, particularly for generating electricity, whereby then, CO2 that occurs at the same time is supposed to be passed to storage. This is achieved in that—the synthesis gas (H2+CO) and oxygen (O2) from an air separation system are combusted in a burner, and relaxed by way of a gas turbine (driving a generator), —CO2 is separated in the waste gas stream and passed to a compressor driven by the gas turbine, and—passed to CO2 storage as compressed CO2.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: August 9, 2016
    Assignee: ThyssenKrupp Uhde GmbH
    Inventors: Domenico Pavone, Ralf Abraham
  • Patent number: 9347008
    Abstract: With a device for influencing the flow, particularly in a horizontal connecting pipe (1) between a coal gasification reactor and a gas cooler/purifier, a solution is supposed to be created, whose task consists in being able to reduce or shut off the gas stream of a hot synthesis gas, if necessary, without being exposed to the great stresses caused by the corrosiveness and the high temperatures, while avoiding complicated valves or regulation devices. This is achieved by means of a Venturi constriction in the flow path of the gas in the pipe (1), as well as a flow cone (4a) positioned on a push rod (4) that is disposed centrally, whereby a connecting rod system (4b) that is guided to the outside is provided to move the push rod (4), whereby the connecting rod system (4b) that moves the push rod (4) is formed by a connecting rod arm guided in a dummy connector and a connecting rod arm guided out of the dummy connector (8) by way of a packed gland (6).
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: May 24, 2016
    Assignee: ThyssenKrupp Uhde GmbH
    Inventors: Eberhard Kuske, Lothar Semrau
  • Patent number: 9303210
    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: Grant
    Filed: November 12, 2010
    Date of Patent: April 5, 2016
    Assignee: THYSSENKRUPP UHDE GMBH
    Inventor: Sven Badura
  • Patent number: 9284204
    Abstract: The invention relates to a process for the biological purification of coking plant wastewater that is loaded with nitrogen compounds, cyanides, phenols and sulphides. The coking plant wastewater, for removal of pollutants that inhibit a nitrification, is fed together with a biomass-containing stream of matter to a detoxification reactor that has a gas-treatment zone and a reaction zone. The feed mixture supplied to the detoxification reactor is exposed in the gas-treatment zone to a gaseous oxidizing agent. A stream of matter enriched with the oxidizing agent is fed to the reaction zone in which cyanides and other pollutants inhibiting the nitrification are biodegraded. A stream of matter is withdrawn from the reaction zone and returned to the detoxification reactor. In addition, a wastewater stream from the detoxification reactor is separated by a membrane filtration into a biomass-containing retentate stream and a purified permeate stream.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: March 15, 2016
    Assignee: THYSSENKRUPP UHDE GMBH
    Inventor: Holger Thielert
  • Patent number: 9278310
    Abstract: The invention relates to a method for reducing nitrogen oxides from the exhaust gas of a coke oven, which has a plurality of coking chambers and heating walls, arranged between the coking chambers, with heating flues (12, 12?) for the indirect heating of the coking chambers. A combustible gas (16), which consists entirely or partially of coke oven gas, is burned in the heating flues (12, 12?), thereby producing an exhaust gas which contains nitrogen oxides. A reducing agent is fed to the exhaust gas at a temperature between 700° C. and 1100° C. and the proportion of nitrogen oxide in the exhaust gas is reduced by a homogeneous gas reaction between the reducing agent and the nitrogen oxides. The exhaust gas is subsequently passed through a regenerator (4) for heat recovery.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: March 8, 2016
    Assignee: TYSSENKRUPP UHDE GMBH
    Inventors: Joerg Brix, Friedrich Huhn, Frank Krebber
  • Patent number: 9266081
    Abstract: Improved reactors for catalytic, exothermic gas phase reactions with, as seen in the flow direction of a feed gas, which contains at least one oxidant and at least one component to be oxidized, an entry zone (1), a reaction zone (2) comprising at least one catalyst (4) and an exit zone (3) for the product gas are described. The reactors, at least in the area of the entry zone (1), have means, for example insulating jackets (6) and/or devices for the transport of cooling agents, which decrease the transport of heat produced in the reaction zone (2) into the entry zone (1) and thus decrease the risks of pre-ignition of the feed gas mixture employed or of the course of undesired side reactions in the entry zone (1) and/or wherein the inner walls of the reactor, at least in the area of the entry zone (1), are elaborated from inert material. The feed gas enters into the entry zone (1) as a homogeneous gas mixture with respect to its substance composition via one or more feed lines (30).
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: February 23, 2016
    Assignee: UHDE GMBH
    Inventors: Meinhard Schwefer, Michael Groves, Jürgen Fuchs, Rainer Maurer, Rolf Siefert, Bernhard Hündgen
  • Patent number: 9260664
    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: Grant
    Filed: February 10, 2011
    Date of Patent: February 16, 2016
    Assignee: ThyssenKrupp Uhde GmbH
    Inventor: Sven Badura
  • Patent number: 9249069
    Abstract: A method for removing high-boiling hydrocarbons from water-soluble solvent flows, wherein said solvent flows are produced in industrial processes which circulate a solvent as a part of the process, and the solvent must be periodically or permanently freed of high-boiling hydrocarbons which influence the quality or the desired properties of the solvent in an unwanted way, and water is added for carrying out the method in a phase separator, so that the high-boiling hydrocarbons are separated off because of their immiscibility with water, and then the water-miscible phase containing water and solvent is returned to the process. According to the invention, the proportion of high-boiling hydrocarbons in circulating solvents in an industrial process can be kept permanently low.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: February 2, 2016
    Assignee: THYSSENKRUPP UHDE GMBH
    Inventors: Johannes Menzel, Holger Thielert
  • Patent number: 9222025
    Abstract: A method for coking coals having high driving pressure properties in a “non-recovery” or “heat-recovery” coking oven, wherein a coking oven battery which is composed of coking oven chambers arranged side by side is used for cyclic coking of coal, and wherein an amount of coal preheated to a high temperature is admitted into the coking chamber that is to be filled at such a level that the driving pressure resulting from the coking can escape over the coke cake into the gas chamber, in such a manner that the coking oven chamber wall surrounding the coking oven chamber is relieved by the driving pressure resulting from the coking. Also disclosed is a device with which this method can be carried out.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: December 29, 2015
    Assignee: THYSSENKRUPP UHDE GMBH
    Inventors: Ronald Kim, Franz-Josef Schuecker
  • Patent number: 9200222
    Abstract: A cooling shield is to be made available, in particular within the pressure container, with conical regions for the exit of gas or slag, in a gasification reactor (1) for producing crude gas containing CO or H2, having a pressure container (2) and a reaction chamber (4) formed by a membrane wall (3) of cooling pipes, wherein an annular space is formed between the inner wall of the pressure container (2) and the membrane wall (3), wherein elements such as burners (17) or the like are provided, which elements horizontally pass through the pressure container wall in the membrane wall substantially on the same plane (18), wherein the suspension or connection between the cooling shield and pressure container (load removal) is optimized, while avoiding difference expansions. This is achieved in that, for removal of the load on the membrane wall (3), direct or indirect support takes place at the cooling inlet lines (5) or mixture outlet lines (14).
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: December 1, 2015
    Assignee: ThyssenKrupp Uhde GmbH
    Inventors: Eberhard Kuske, Johannes Dostal, Reinald Schulze Eckel, Lothar Semrau