Patents by Inventor Michael Kleiber
Michael Kleiber has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11697631Abstract: A process can be used for recovering 1-methoxy-2-propanol and 2-methoxy-1-propanol from an aqueous effluent stream by liquid-liquid-extraction, followed by extractive distillation, distillation of methoxypropanols from the extraction solvent, and distillative separation of the methoxypropanol isomers. Recovered extraction solvent is recycled to the extraction and extractive distillation. Heat transfer from recovered extraction solvent to the extract fed to the extractive distillation reduces energy demand of the process. A facility for this process contains a countercurrent extraction column, an extractive distillation column, a solvent recovery distillation column, an isomer separation distillation column, and a heat exchanger for transferring heat from recovered extraction solvent to the extract fed to the extractive distillation.Type: GrantFiled: March 23, 2021Date of Patent: July 11, 2023Assignees: Evonik Operations GmbH, thyssenkrupp Industrial Solutions AGInventors: Michael Kleiber, Willi Hofen
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Publication number: 20230122837Abstract: A process can be used for recovering 1-methoxy-2-propanol and 2-methoxy-1-propanol from an aqueous effluent stream by liquid-liquid-extraction, followed by extractive distillation, distillation of methoxypropanols from the extraction solvent, and distillative separation of the methoxypropanol isomers. Recovered extraction solvent is recycled to the extraction and extractive distillation. Heat transfer from recovered extraction solvent to the extract fed to the extractive distillation reduces energy demand of the process. A facility for this process contains a countercurrent extraction column, an extractive distillation column, a solvent recovery distillation column, an isomer separation distillation column, and a heat exchanger for transferring heat from recovered extraction solvent to the extract fed to the extractive distillation.Type: ApplicationFiled: March 23, 2021Publication date: April 20, 2023Applicants: Evonik Operations GmbH, thyssenkrupp Industrial Solution AGInventors: Michael KLEIBER, Willi Hofen
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Publication number: 20220306550Abstract: A process can be used to prepare alkenes by catalytic conversion of synthesis gas to a first mixture comprising alkenes and alcohols. The alcohols present in the first mixture are converted to the corresponding alkenes by dehydration in a subsequent step. At least one alkene having two to four carbon atoms is obtained as isolated product from a product mixture by processing thereof and/or separation steps. In the catalytic conversion, a catalyst is preferably used that comprises grains of non-graphitic carbon having cobalt nanoparticles dispersed therein. The cobalt nanoparticles have an average diameter dp of 1-20 nm. An average distance D between individual cobalt nanoparticles in the grains is 2-150 nm. A combined total mass fraction ? of metal in the grains is from 30%-70% by weight of a total mass of the grains such that 4.5 dp/?>D?0.25 dp/?.Type: ApplicationFiled: August 13, 2020Publication date: September 29, 2022Applicants: thyssenkrupp Industrial Solutions AG, thyssenkrupp AGInventors: Nils TENHUMBERG, Stefan GEHRMANN, Michael KLEIBER
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Publication number: 20220306948Abstract: A process can treat a gaseous material mixture obtained by catalytic conversion of synthesis gas that contains at least alkenes, possibly alcohols and possibly alkanes, and also possibly nitrogen as inert gas and unconverted components of the synthesis gas, comprising hydrogen, carbon monoxide and/or carbon dioxide. After catalytic conversion of synthesis gas, separation of the product mixture obtained in this reaction into a gas phase and a liquid phase is performed by at least partial absorption of the alkenes, possibly of the alcohols and possibly of the alkanes, in a high boiling point hydrocarbon or hydrocarbon mixture as an absorption medium, separation as the gas phase of the gases not absorbed into the absorption medium, separating an aqueous phase from the organic phase of the absorption medium, preferably by decanting, and desorption of the alkenes, possibly of the alcohols and possibly of the alkanes, from the absorption medium.Type: ApplicationFiled: May 8, 2020Publication date: September 29, 2022Applicants: thyssenkrupp Industrial Solutions AG, thyssenkrupp AGInventors: Michael KLEIBER, Nils TENHUMBERG, Stefan GEHRMANN
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Publication number: 20220298088Abstract: A process can produce alcohols having at least two carbon atoms by catalytic conversion of synthesis gas into a mixture containing alkanes, alkenes, and alcohols. Alkenes are converted into corresponding alcohols in a subsequent step by hydration of the alkanes. Before the hydration and after the catalytic conversion, gas and liquid phases may be separated. Specific catalysts can be employed that have a markedly higher selectivity for alkenes than for alkanes. These catalysts comprise grains of non-graphitic carbon having cobalt nanoparticles dispersed therein. The cobalt nanoparticles have an average diameter dp from 1 to 20 nm, and an average distance D between nanoparticles is from 2 to 150 nm. The combined total mass fraction of metal ? in the grains ranges from 30% to 70% by weight of the total mass of the grains of non-graphitic carbon, wherein 4.5 dp/?>D?0.25 dp/?.Type: ApplicationFiled: August 14, 2020Publication date: September 22, 2022Applicants: thyssenkrupp Industrial Solutions AG, thyssenkrupp AGInventors: Nils TENHUMBERG, Stefan GEHRMANN, Michael KLEIBER
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Patent number: 10428036Abstract: In a process for the epoxidation of propene, comprising the steps of reacting propene with hydrogen peroxide, separating propene oxide and a recovered propene stream from the reaction mixture, separating propane from all or a part of the recovered propene stream in a C3 splitter column, and passing the overhead product stream of the C3 splitter column to the epoxidation step, a propane starting material with a propane fraction of from 0.002 to 0.10 is used, the epoxidation is operated to provide a propane fraction in the reaction mixture of from 0.05 to 0.20 and the C3 splitter column is operated to provide an overhead product stream which comprises a propane fraction of at least 0.04 in order to reduce the size and the energy consumption of the C3 splitter column.Type: GrantFiled: November 25, 2016Date of Patent: October 1, 2019Assignees: Evonik Degussa GmbH, thyssenkrupp Industrial Solutions AGInventors: Willi Hofen, Thomas Haas, Wolfgang Wöll, Bärbel Kolbe, Hans-Christian Dietz, Marc Brendel, Bernd Jaeger, Manfred Bärz, Michael Kleiber
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Publication number: 20180346432Abstract: In a process for the epoxidation of propene, comprising the steps of reacting propene with hydrogen peroxide, separating propene oxide and a recovered propene stream from the reaction mixture, separating propane from all or a part of the recovered propene stream in a C3 splitter column, and passing the overhead product stream of the C3 splitter column to the epoxidation step, a propane starting material with a propane fraction of from 0.002 to 0.10 is used, the epoxidation is operated to provide a propane fraction in the reaction mixture of from 0.05 to 0.20 and the C3 splitter column is operated to provide an overhead product stream which comprises a propane fraction of at least 0.04 in order to reduce the size and the energy consumption of the C3 splitter column.Type: ApplicationFiled: November 25, 2016Publication date: December 6, 2018Applicants: Evonik Degussa GmbH, ThyssenKrupp Industrial Solutions AGInventors: Willi HOFEN, Thomas HAAS, Wolfgang WÖLL, Bärbel KOLBE, Hans-Christian DIETZ, Marc BRENDEL, Bernd JAEGER, Manfred BÄRZ, Michael KLEIBER
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Patent number: 9849400Abstract: 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: GrantFiled: June 27, 2012Date of Patent: December 26, 2017Assignees: THYSSENKRUPP UHDE GMBH, VINNOLIT GMBH & CO. KGInventors: Michael Benje, Sven Petersen, Michael Kleiber
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Patent number: 9422220Abstract: Method and devices for separating and purifying carboxylic acids from fermentation broths comprising carboxylic acid ammonium salts are disclosed herein. The method includes (a) removing biomass and any solids present from the fermentation broth; (b) preparing a solution comprising the desired carboxylic acid and an additional solution comprising ammonium salts, by carrying out simulated moving bed chromatography (SMB); (c) ultra-purifying the solution comprising the desired carboxylic acid from method step (b); (d) concentrating the purified carboxylic acid solution from method step (c); (e) crystallizing the concentrated carboxylic acid solution from method step (d); and (f) concentrating the additional solution comprising ammonium salts from method step (b). A combination of reverse osmosis and evaporation is carried out in method steps (d) and (f), and the vapor from the evaporation of method step (f) is passed into the evaporation of method step (d).Type: GrantFiled: December 20, 2013Date of Patent: August 23, 2016Assignee: THYSSENKRUPP INDUSTRIAL SOLUTIONS AGInventors: Michael Kleiber, Ulrike Gnabs, Joachim Schulze, Shashank Ghanegaonkar, Helmut Gehrke, Marcel Gawenda
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Publication number: 20150344397Abstract: Method and devices for separating and purifying carboxylic acids from fermentation broths comprising carboxylic acid ammonium salts are disclosed herein. The method includes (a) removing biomass and any solids present from the fermentation broth; (b) preparing a solution comprising the desired carboxylic acid and an additional solution comprising ammonium salts, by carrying out simulated moving bed chromatography (SMB); (c) ultra-purifying the solution comprising the desired carboxylic acid from method step (b); (d) concentrating the purified carboxylic acid solution from method to step (c); (e) crystallizing the concentrated carboxylic acid solution from method step (d); and (f) concentrating the additional solution comprising ammonium salts from method step (b). A combination of reverse osmosis and evaporation is carried out in method steps (d) and (f), and the vapor from the evaporation of method step (f) is passed into the evaporation of method step (d).Type: ApplicationFiled: December 20, 2013Publication date: December 3, 2015Inventors: Michael Kleiber, Ulrike Gnabs, Joachim Schulze, Shashank Ghanegaonkar, Helmut Gehrke, Marcel Gawenda
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Publication number: 20150329445Abstract: Disclosed herein is a method and apparatus for recovering hydrocarbons from polyolefin plants. A method of the present disclosure includes introducing a hydrocarbon-containing inert gas from a residual monomer separation unit of a polyolefin plant into a condensation and separation device, condensing hydrocarbons from a hydrogen-containing inert gas in the condensation and separation device, separating the condensed inert gas into a condensed hydrocarbon-containing product and purified inert gas in the device, and sending the condensed hydrocarbon-containing product to a downstream further separation device for removal of dissolved gasses therefrom.Type: ApplicationFiled: February 9, 2013Publication date: November 19, 2015Applicant: THYSSENKRUPP INDUSTRIAL SOLUTIONS AGInventors: Michael Kleiber, Tobias Friederich
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Publication number: 20140158518Abstract: 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: ApplicationFiled: June 27, 2012Publication date: June 12, 2014Applicants: VINNOLIT GMBH & CO. KG, THYSSENKRUPP UHDE GMBHInventors: Michael Benje, Sven Petersen, Michael Kleiber
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Patent number: 8196721Abstract: The hydro-pneumatic spring damping device in particular for wheeled vehicles or tracked vehicles includes at least one hydro-pneumatic element (1) having a gas chamber (1h) wherein the hydro-pneumatic element (1) includes a heat exchanger (1i) which is arranged such that it influences the temperature of the gas in the gas chamber (1h) and wherein a heat exchanger (1i) can be connected to a cooling device (21) via a coolant circuit (21).Type: GrantFiled: April 30, 2008Date of Patent: June 12, 2012Assignee: Stromsholmen ABInventors: Stefan Gabriel, Michael Kleiber, Volker Triebs, Roland Züllig
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Publication number: 20090107784Abstract: The hydro-pneumatic spring damping device in particular for wheeled vehicles or tracked vehicles includes at least one hydro-pneumatic element (1) having a gas chamber (1h) wherein the hydro-pneumatic element (1) includes a heat exchanger (1i) which is arranged such that it influences the temperature of the gas in the gas chamber (1h) and wherein a heat exchanger (1i) can be connected to a cooling device (21) via a coolant circuit (21).Type: ApplicationFiled: April 30, 2008Publication date: April 30, 2009Applicant: CURTISS WRIGHT ANTRIEBSTECHNIK GMBHInventors: Stefan Gabriel, Michael Kleiber, Volker Triebs, Roland Zullig
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Patent number: 6201136Abstract: In a process for separating liquid mixtures comprising formaldehyde, trioxane, alcohol, hemiformal formed from the formaldehyde and the alcohol, usual minor components and up to 5% by weight of water, the liquid mixture is distilled batchwise or continuously at reduced pressure, atmospheric pressure or superatmospheric pressure in suitable apparatuses which are to be connected to one another in an appropriate manner, and the trioxane is produced in very high purity. The other materials of value, formaldehyde and alcohol, present in the mixture can likewise optionally be separated off and recycled or used otherwise, while the minor components are ejected.Type: GrantFiled: November 9, 1999Date of Patent: March 13, 2001Assignee: Ticona GmbHInventors: Albert Reichl, Michael Kleiber, Michael Rosenberg, Dirk Scheid, Dieter Sommerfeld, Wolfgang Nickelfeld
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Patent number: 5882485Abstract: A process for the separation of dimethyl ether and chloromethane in mixturesA process for the separation of dimethyl ether and chloromethane in mixtures by two distillation steps. In the first step, the mixture is subjected to an extractive distillation with water, aqueous salt solutions or organic liquids as extractant, the top product being chloromethane. In the second step, the dimethyl ether is separated from the extractant.Type: GrantFiled: June 23, 1997Date of Patent: March 16, 1999Assignee: Hoechst AktiengesellschaftInventors: Peter Roth, Erhard Leistner, Hans Haverkamp, Wolfgang Wendel, Michael Kleiber