Patents by Inventor Kai Jurgen FISCHER
Kai Jurgen FISCHER 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: 10266470Abstract: The invention provides a process for the separation of MEG and 1,2-BDO from a first mixture comprising MEG and 1,2-BDO in a weight ratio of at least 10:1 (MEG:1,2-BDO), said process comprising the steps of; (i) providing the first mixture as a feed to a distillation column at a point in the range of from 20 to 80% of the column height; (ii) operating the distillation at a temperature in the range of from 120 to 190° C. and at a pressure in the range of from 5 kPa to atmospheric pressure; (iii) removing an MEG stream from the distillation column at a point below the point at which the first mixture is fed; (iv) removing an overheads stream comprising an azeotrope of MEG and 1,2-BDO.Type: GrantFiled: April 5, 2016Date of Patent: April 23, 2019Assignee: SHELL OIL COMPANYInventors: Pieter Huizenga, Kai Jürgen Fischer, Karin Bus, Waldo Eugene De Villiers, Carmelo Perez Golf
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Patent number: 10246390Abstract: A process for the separation of monoethylene glycol (MEG) and 1,2-butanediol (1,2-BDO) from a first mixture including MEG and 1,2-BDO, the process including providing the first mixture of MEG and 1,2-BDO as a feed to a distillation column. The process also includes providing a feed comprising glycerol to the distillation column above the first mixture. The process also includes operating the distillation column at a temperature in the range of from 50 to 250° C. and a pressure in the range of from 0.1 to 400 kPa. The process also includes removing a stream comprising MEG and glycerol as a bottoms stream from the distillation column and removing a stream comprising 1,2-BDO above the point at which the feed comprising glycerol is provided to the distillation column.Type: GrantFiled: December 4, 2015Date of Patent: April 2, 2019Assignee: SHELL OIL COMPANYInventors: Pieter Huizenga, Kai Jurgen Fischer
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Publication number: 20190062244Abstract: A process for the production of high purity mono-ethylene glycol (MEG) from a product stream of a saccharide hydrogenolysis process. The process having the steps of: (i) removing solvent from the product stream to provide a solvent-lean product stream; (ii) subjecting the solvent-lean product stream to distillation to provide a bottoms stream comprising high boiling by-products and a top stream comprising a mixture comprising MEG and 1,2-butanediol (1,2-BDO); (iii) providing said mixture having MEG and 1,2-BDO as a feed to a distillation column; (iv) providing a feed comprising an extractant of C3 to C6 alcohols and mixtures thereof to the distillation column above the mixture comprising MEG and 1,2-BDO; (v) removing a stream comprising MEG and the extractant as a bottoms stream from the distillation column; and (vi) subjecting the stream comprising MEG and the extractant to distillation to provide a top stream comprising high purity MEG.Type: ApplicationFiled: September 21, 2016Publication date: February 28, 2019Inventors: Carmelo PEREZ GOLF, Evert VAN DER HEIDE, Pieter HUIZENGA, Kai Jurgen FISCHER
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Patent number: 10099980Abstract: A method of recovering an alcohol from an aqueous stream comprising: providing an aqueous stream comprising water and an alcohol; providing a solvent stream; combining the aqueous stream and the solvent stream; and recovering at least a portion of the alcohol by liquid-liquid extraction.Type: GrantFiled: May 28, 2014Date of Patent: October 16, 2018Assignee: SHELL OIL COMPANYInventors: Kai Jürgen Fischer, Wouter Koot
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Patent number: 10081584Abstract: The invention provides a process for the separation of MEG from a glycol stream comprising MEG and 1,2-BDO, said process comprising the steps of: (a) providing the glycol stream and an azeotrope-forming agent to a distillation column, (b) subjecting the glycol stream and the azeotrope-forming agent to distillation at a distillation temperature and a distillation pressure; (c) obtaining a first overhead stream comprising an azeotrope of MEG and the azeotrope-forming agent and a first bottoms stream comprising 1,2-BDO; and (d) subjecting the first overhead stream to phase separation in the presence of water to obtain an MEG-rich aqueous stream and an azeotrope-forming agent rich stream, wherein the azeotrope-forming agent is an organic solvent that forms a homogeneous azeotrope with MEG and does not form an azeotrope with 1,2-BDO at the distillation temperature and pressure.Type: GrantFiled: December 16, 2015Date of Patent: September 25, 2018Assignee: SHELL OIL COMPANYInventors: Kai Jürgen Fischer, Waldo Eugene De Villiers, Pieter Huizenga, Carmelo Perez Golf
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Publication number: 20180214841Abstract: The invention relates to a method and apparatus for partially solidifying a methane comprising stream. The method comprises—providing a liquid methane comprising stream (30) at a first pressure (P1),—passing the liquid methane comprising stream (30) to a slush vessel (300) which is kept at a second pressure (P2), the second pressure (P2) being lower than the first pressure (P1), thereby cooling and at least partially solidifying the methane comprising stream (30) generating a methane comprising slush, and—collecting the methane comprising slush.Type: ApplicationFiled: July 28, 2016Publication date: August 2, 2018Inventors: Kai Jürgen FISCHER, Marcel Filip DABKOWSKI, Joshua ETKIND, Ancuta Ioana HULEA, Laurens Joseph Arnold Marie VAN CAMPEN, Raymond Petrus Henricus Maria BERGMANN
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Patent number: 10035744Abstract: The invention provides a process for the separation of MEG and 1,2-BDO from a first mixture comprising MEG and 1,2-BDO in a first solvent by the steps of: (i) combining said first mixture with a second solvent stream comprising a second solvent in a first extraction column; (ii) recovering (a) a second mixture of MEG and 1,2-BDO in the second solvent, wherein the molar ratio of MEG:1,2-BDO is lower in the second mixture than in the first mixture; and (b) a solution comprising MEG in the first solvent; (iii) combining said second mixture with a first washing stream, said first washing stream also comprising the first solvent in a second extraction column; (iv) recovering (c) a first extract stream comprising the second solvent and 1,2-BDO and (d) a third mixture comprising MEG and, optionally, 1,2-BDO in the first solvent.Type: GrantFiled: November 4, 2015Date of Patent: July 31, 2018Assignee: SHELL OIL COMPANYInventors: Pieter Huizenga, Kai Jürgen Fischer, Waldo Eugene De Villiers, Karin Bus, Dorien Veldhuizen
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Publication number: 20180194644Abstract: The present invention relates to a method for treating a waste water stream. Said waste water comprises hydrocarbons and oxygenates such as alcohols, aldehydes, ketones, carboxylic acids, and has a COD of up to 5 wt %. The invention relates to a distillation column for treating a waste water stream and a system for treating a waste water stream.Type: ApplicationFiled: June 23, 2016Publication date: July 12, 2018Inventors: Kai Jürgen FISCHER, Matthias BEHN
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Patent number: 9932284Abstract: The present invention provides a process for the recovery of 1,4-butanediol and at least one co-product selected from ?-butyrolactone, n-butanol and tetrahydrofuran from an aqueous stream, said process comprising the steps of providing the aqueous stream, providing a first solvent stream, combining said aqueous stream with said first solvent stream and recovering at least a portion of the 1,4-butanediol and at least a portion of at least one of the co-products by liquid-liquid extraction.Type: GrantFiled: May 28, 2014Date of Patent: April 3, 2018Assignee: SHELL OIL COMPANYInventors: Kai Jürgen Fischer, Wouter Koot, Sipke Hidde Wadman, Jean Paul Andre Marie Joseph Gishlain Lange
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Publication number: 20180079702Abstract: The invention provides a process for the separation of MEG and 1,2-BDO from a first mixture comprising MEG and 1,2-BDO in a weight ratio of at least 10:1 (MEG:1,2- BDO), said process comprising the steps of; (i) providing the first mixture as a feed to a distillation column at a point in the range of from 20 to 80% of the column height; (ii) operating the distillation at a temperature in the range of from 120 to 190° C. and at a pressure in the range of from 5 kPa to atmospheric pressure; (iii) removing an MEG stream from the distillation column at a point below the point at which the first mixture is fed; (iv) removing an overheads stream comprising an azeotrope of MEG and 1,2-BDO.Type: ApplicationFiled: April 5, 2016Publication date: March 22, 2018Inventors: Pieter HUIZENGA, Kai Jürgen FISCHER, Karin BUS, Waldo Eugene DE VILLIERS, Carmelo PEREZ GOLF
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Publication number: 20170362150Abstract: The invention provides a process for the separation of MEG from a glycol stream comprising MEG and 1,2-BDO, said process comprising the steps of: (a) providing the glycol stream and an azeotrope-forming agent to a distillation column, (b) subjecting the glycol stream and the azeotrope-forming agent to distillation at a distillation temperature and a distillation pressure; (c) obtaining a first overhead stream comprising an azeotrope of MEG and the azeotrope-forming agent and a first bottoms stream comprising 1,2-BDO; and (d) subjecting the first overhead stream to phase separation in the presence of water to obtain an MEG-rich aqueous stream and an azeotrope-forming agent rich stream, wherein the azeotrope-forming agent is an organic solvent that forms a homogeneous azeotrope with MEG and does not form an azeotrope with 1,2-BDO at the distillation temperature and pressure.Type: ApplicationFiled: December 16, 2015Publication date: December 21, 2017Inventors: Kai Jürgen FISCHER, Waldo Eugene DE VILLIERS, Pieter HUIZENGA, Carmelo PEREZ GOLF
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Publication number: 20170334816Abstract: The invention provides a process for the separation of MEG and 1,2-BDO from a first mixture comprising MEG and 1,2-BDO, said process comprising the steps of: (i) providing said first mixture comprising MEG and 1,2-BDO as a feed to a distillation column; (ii) providing a feed comprising glycerol to the distillation column above the first mixture; (iii) operating the distillation column at a temperature in the range of from 50 to 250° C. and a pressure in the range of from 0.1 to 400 kPa; (iv) removing a stream comprising MEG and glycerol as a bottoms stream from the distillation column; and (v) (v) removing a stream comprising 1,2-BDO above the point at which the feed comprising glycerol is provided to the distillation column.Type: ApplicationFiled: December 4, 2015Publication date: November 23, 2017Inventors: Pieter HUIZENGA, Kai Jurgen FISCHER
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Publication number: 20170313640Abstract: The invention provides a process for the separation of MEG and 1,2-BDO from a first mixture comprising MEG and 1,2-BDO in a first solvent by the steps of: (i) combining said first mixture with a second solvent stream comprising a second solvent in a first extraction column; (ii) recovering (a) a second mixture of MEG and 1,2-BDO in the second solvent, wherein the molar ratio of MEG:1,2-BDO is lower in the second mixture than in the first mixture; and (b) a solution comprising MEG in the first solvent; (iii) combining said second mixture with a first washing stream, said first washing stream also comprising the first solvent in a second extraction column; (iv) recovering (c) a first extract stream comprising the second solvent and 1,2-BDO and (d) a third mixture comprising MEG and, optionally, 1,2-BDO in the first solvent.Type: ApplicationFiled: November 4, 2015Publication date: November 2, 2017Inventors: Pieter HUIZENGA, Kai Jürgen FISCHER, Waldo Eugene DE VILLIERS, Karin BUS, Dorien VELDHUIZEN
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Publication number: 20170305823Abstract: A method of recovering an alcohol from an aqueous stream comprising: providing an aqueous stream comprising an alcohol; extracting at least a portion of the alcohol from the aqueous stream with a solvent to form an extracted solvent stream; extracting at least a portion of the solvent from the extracted solvent stream to form an extracted aqueous stream; and recovering at least a portion of the alcohol from the extracted aqueous stream.Type: ApplicationFiled: November 2, 2015Publication date: October 26, 2017Inventors: Kai Jürgen FISCHER, Pieter HUIZENGA, Wouter KOOT, Martin MADERA
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Patent number: 9718752Abstract: The invention provides a process for the recovery of an alkylene glycol from an aqueous stream comprising the alkylene glycol and the corresponding dialkylene glycol, said process comprising the steps of providing the aqueous stream comprising the alkylene glycol and the corresponding dialkylene glycol, providing a first solvent stream, combining said aqueous stream comprising the alkylene glycol and the corresponding dialkylene glycol with said first solvent stream and recovering at least a portion of the alkylene glycol by liquid-liquid extraction, wherein said solvent comprises an amine.Type: GrantFiled: May 28, 2014Date of Patent: August 1, 2017Assignee: SHELL OIL COMPANYInventors: Kai Jürgen Fischer, Wouter Koot, Arlette Wesenhagen, Roel Guillaume Hubertus Leonardus Bastings
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Publication number: 20160107966Abstract: The present invention provides a process for the recovery of 1,4-butanediol and at least one co-product selected from ?-butyrolactone, n-butanol and tetrahydrofuran from an aqueous stream, said process comprising the steps of providing the aqueous stream, providing a first solvent stream, combining said aqueous stream with said first solvent stream and recovering at least a portion of the 1,4-butanediol and at least a portion of at least one of the co-products by liquid-liquid extraction.Type: ApplicationFiled: May 28, 2014Publication date: April 21, 2016Inventors: Kai Jürgen FISCHER, Wouter KOOT, Sipke Hidde WADMAN, Jean Paul Andre Marie Joseph Gishlain LANGE
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Publication number: 20160102035Abstract: The invention provides a process for the recovery of an alkylene glycol from an aqueous stream comprising the alkylene glycol and the corresponding dialkylene glycol, said process comprising the steps of providing the aqueous stream comprising the alkylene glycol and the corresponding dialkylene glycol, providing a first solvent stream, combining said aqueous stream comprising the alkylene glycol and the corresponding dialkylene glycol with said first solvent stream and recovering at least a portion of the alkylene glycol by liquid-liquid extraction, wherein said solvent comprises an amine.Type: ApplicationFiled: May 28, 2014Publication date: April 14, 2016Inventors: Kai Jürgen FISCHER, Wouter KOOT, Arlette WESENHAGEN, Roel Guillaume Hubertus Leonardus BASTINGS
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Publication number: 20160096790Abstract: The invention provides a process for the recovery of 1,4-butanediol from an aqueous stream, said process comprising the steps of providing the aqueous stream, providing a first solvent stream, combining said aqueous stream with said first solvent stream and recovering at least a portion of the 1,4-butanediol by liquid-liquid extraction.Type: ApplicationFiled: May 28, 2014Publication date: April 7, 2016Applicant: SHELL OIL COMPANYInventors: Wouter KOOT, Sipke Hidde WADMAN, Jean Paul Andre Marie Joseph Gishlain LANGE, Kai Jürgen FISCHER
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Publication number: 20160090342Abstract: A method of recovering an alcohol from an aqueous stream comprising: providing an aqueous stream comprising water and an alcohol; providing a solvent stream; combining the aqueous stream and the solvent stream; and recovering at least a portion of the alcohol by liquid-liquid extraction.Type: ApplicationFiled: May 28, 2014Publication date: March 31, 2016Inventors: Kai Jürgen FISCHER, Wouter KOOT