Patents by Inventor Anina Wohl
Anina Wohl 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: 11560344Abstract: A process (100) is proposed for the production of one or more olefins, in which a reaction feed containing oxygen and one or more paraffins is formed and in which a part of the oxygen in the reaction feed is reacted with a part of the one or more paraffins to form the one or more olefins by an oxidative process, to obtain a process gas, the process gas containing at least the unreacted part of the one or more paraffins and oxygen, the one or more olefins, one or more acetylenes, carbon dioxide and water.Type: GrantFiled: March 4, 2020Date of Patent: January 24, 2023Assignee: LINDE GmbHInventors: Helmut Fritz, Andreas Meiswinkel, Martin Schubert, Mathieu Zellhuber, Nicole Schödel, Sonja Schulte, Anina Wöhl
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Publication number: 20220153661Abstract: A process (100) is proposed for the production of one or more olefins, in which a reaction feed containing oxygen and one or more paraffins is formed and in which a part of the oxygen in the reaction feed is reacted with a part of the one or more paraffins to form the one or more olefins by an oxidative process, to obtain a process gas, the process gas containing at least the unreacted part of the one or more paraffins and oxygen, the one or more olefins, one or more acetylenes, carbon dioxide and water.Type: ApplicationFiled: March 4, 2020Publication date: May 19, 2022Inventors: Helmut FRITZ, Andreas MEISWINKEL, Martin SCHUBERT, Mathieu ZELLHUBER, Nicole SCHÖDEL, Sonja SCHULTE, Anina WÖHL
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Patent number: 11331655Abstract: A method for preparing a homogenous catalyst for the production of linear alpha olefins includes: preparing a first pre-catalyst solution comprising a modifier and an organoaluminum compound in a first solvent wherein the first pre-catalyst solution is reacted and stored in a first vessel for a period of time of 1 hour to 90 days; preparing a second pre-catalyst solution comprising a second solvent, a ligand, and a chromium containing compound, wherein the second pre-catalyst solution is stored in a second vessel for a period of time of 1 hour to 90 days; and after a period of time, adding the first pre-catalyst solution to a catalyst pre-formation unit; after the same period of time, adding the second pre-catalyst solution to the catalyst pre-formation unit; forming a homogenous catalyst by mixing the first pre-catalyst solution and the second pre-catalyst solution; adding the homogeneous catalyst to a reaction vessel, wherein the reaction vessel comprises an alpha olefin; and forming the linear alpha olefinType: GrantFiled: December 21, 2017Date of Patent: May 17, 2022Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Abdullah Saad Al-Dughaither, Shahid Azam, Abdulmajeed Mohammed Al-Hamdan, Dafer Mubarak Alshahrani, Sebastiano Licciulli, Anina Wohl, Wolfgang Muller, Heinz Bolt, Andreas Meiswinkel, Tobias Meier, Ralf Noack
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Patent number: 11285469Abstract: A method for preparing a homogenous catalyst for use in preparing a linear alpha olefin includes: preparing a first pre-catalyst solution by mixing a chromium source and a ligand in a first solvent, wherein the first pre-catalyst solution is stored in a first vessel; preparing a second pre-catalyst solution by mixing an organoaluminum compound and a modifier in a second solvent, wherein the second pre-catalyst solution is stored in a second vessel; and simultaneously feeding the first pre-catalyst solution and the second pre-catalyst solution directly into a reaction vessel, wherein the reaction vessel includes a third solvent.Type: GrantFiled: December 28, 2017Date of Patent: March 29, 2022Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Abdullah Saad Al-Dughaither, Shahid Azam, Abdulmajeed Mohammed Al-Hamdan, Dafer Mubarak Alshahrani, Sebastiano Licciulli, Andreas Meiswinkel, Heinz Bolt, Wolfgang Muller, Anina Wohl
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Patent number: 11225444Abstract: A method of column control includes: passing a feed stream and a make-up stream through a column; withdrawing an overhead fraction from the column; purging at least a portion of the overhead fraction; cooling at least a portion of the overhead fraction in a heat exchanger and passing it through a reflux drum; withdrawing a purge stream and a distillate stream from the reflux drum, wherein the distillate stream has a constant flow rate; recycling at least a portion of the distillate stream back to the column; and passing at least a portion of the distillate stream to a downstream process.Type: GrantFiled: December 19, 2017Date of Patent: January 18, 2022Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Abdullah Saad Al-Dughaiter, Shahid Azam, Abdulmajeed Mohammed Al-Hamdan, Dafer Mubarak Alshahrani, Ralf Noack, Tobias Meier, Gabriel Waurick, Heinz Bolt, Andreas Meiswinkel, Wolfgang Müller, Anina Wohl, Hans-Jorge Zander
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Publication number: 20210130265Abstract: A method of column control includes: passing a feed stream and a make-up stream through a column; withdrawing an overhead fraction from the column; purging at least a portion of the overhead fraction; cooling at least a portion of the overhead fraction in a heat exchanger and passing it through a reflux drum; withdrawing a purge stream and a distillate stream from the reflux drum, wherein the distillate stream has a constant flow rate; recycling at least a portion of the distillate stream back to the column; and passing at least a portion of the distillate stream to a downstream process.Type: ApplicationFiled: December 19, 2017Publication date: May 6, 2021Inventors: Abdullah Saad Al-Dughaiter, Shahid Azam, Abdulmajeed Mohammed Al-Hamdan, Dafer Mubarak Alshahrani, Ralf Noack, Tobias Meier, Gabriel Waurick, Heinz Bolt, Andreas Meiswinkel, Wolfgang Müller, Anina Wohl, Hans-Jorge Zander
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Patent number: 10882926Abstract: The present invention relates to a method for preparing a catalyst composition for the oligomerization of ethylene and a respective catalyst composition pre-formation unit.Type: GrantFiled: January 11, 2012Date of Patent: January 5, 2021Assignee: SABIC Global Technologies B.V.Inventors: Anina Wohl, Wolfgang Muller, Heinz Bolt, Andreas Meiswinkel, Uwe Rosenthal, Bernd Muller, Normen Peulecke, Christian Thaller, Marco Harff, Stephan Peitz, Fuad Mosa, Mohammed H. Al-Hazmi, Shahid Azam
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Patent number: 10758881Abstract: A method for processing an oligomerization product stream includes discharging the oligomerization product stream from an oligomerization reactor through a product outlet line, and heating the oligomerization product stream, heating a wall of the product outlet line, or both. The oligomerization product stream includes solvent, linear alpha olefins, a polymer byproduct, or a combination of at least one of the foregoing. The heating is to a temperature that is greater than the melting temperature of the polymer byproduct present in the oligomerization product stream.Type: GrantFiled: March 17, 2017Date of Patent: September 1, 2020Assignees: SABIC GLOBAL TECHNOLOGIES B.V., LINDE AGInventors: Abdullah Alqahtani, Shahid Azam, Anina Wöhl, Wolfgang Müller, Andreas Meiswinkel, Heinz Bölt, Ralf Noack, Andreas Metzner, Andre Porebski, Tobias Meier
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Publication number: 20200139334Abstract: A method of temperature control includes: passing a feed stream comprising ethylene through a reactor at a feed location; withdrawing an outlet steam comprising linear alpha olefins from the reactor; passing the outlet stream through a condensate vessel, wherein the outlet stream is split into a vapor fraction and a liquid fraction within the condensate vessel; withdrawing the vapor fraction from the condensate vessel and recycling it back to the feed stream; and withdrawing the liquid fraction from the condensate vessel and injecting it into the reactor at an injection location.Type: ApplicationFiled: December 21, 2017Publication date: May 7, 2020Inventors: Abdullah Saad Al-Dughaiter, Shahid Azam, Abdulmajeed Mohammed Al-Hamdan, Dafer Mubarak Alshahrani, Ralf Noack, Tobias Meier, Gabriel Waurick, Heinz Bolt, Anina Wohl, Wolfgang Müller, Andreas Meiswinkel, Hans-Jorg Zander
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Publication number: 20200115296Abstract: A method of producing linear alpha olefins includes: introducing a catalyst stream and a first solvent stream to a reactor, wherein the reactor comprises a distributor; introducing a second solvent stream above the distributor, wherein the catalyst stream, the first solvent stream, and the second solvent stream form a reaction solution; introducing a feed stream to the reactor; passing the feed stream through the distributor; and passing the feed stream through the reaction solution, producing an oligomerization reaction forming the linear alpha olefins.Type: ApplicationFiled: December 19, 2017Publication date: April 16, 2020Inventors: Dafer Mubarak Al-Shahrani, Shahid Azam, Hans-Jörg Zander, Wolfgang Muller, Anina Wohl, Andreas Meiswinkel, Ralf Noack, Tobias Meier, Harald Schmaderer
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Publication number: 20190351403Abstract: A method for preparing a homogenous catalyst for use in preparing a linear alpha olefin includes: preparing a first pre-catalyst solution by mixing a chromium source and a ligand in a first solvent, wherein the first pre-catalyst solution is stored in a first vessel; preparing a second pre-catalyst solution by mixing an organoaluminum compound and a modifier in a second solvent, wherein the second pre-catalyst solution is stored in a second vessel; and simultaneously feeding the first pre-catalyst solution and the second pre-catalyst solution directly into a reaction vessel, wherein the reaction vessel includes a third solvent.Type: ApplicationFiled: December 28, 2017Publication date: November 21, 2019Inventors: Abdullah Saad Al-Dughaither, Shahid Azam, Abdulmajeed Mohammed Al-Hamdan, Dafer Mubarak Alshahrani, Sebastiano Licciulli, Andreas Meiswinkel, Heinz Bolt, Wolfgang Muller, Anina Wohl
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Publication number: 20190322965Abstract: A process for flushing an oligomerization reactor is described, including flushing the oligomerization reactor with a flushing medium comprising C6 linear alpha olefins, C8 linear alpha olefins, C10 linear alpha olefins, or a combination including at least one of the foregoing, to provide a purge stream comprising the C6 linear alpha olefins, C8 linear alpha olefins, C10 linear alpha olefins, or a combination including at least one of the foregoing, and a polymer byproduct of an oligomerization reaction. A process for the oligomerization of an olefin is also described, wherein the process includes oligomerizing the olefin in the reactor to form a reaction product stream comprising linear alpha olefins, and subsequently flushing the oligomerization reactor according to the process disclosed herein.Type: ApplicationFiled: December 1, 2016Publication date: October 24, 2019Inventors: Abdullah Alqahtani, Shahid Azam, Shehzada Khurram, Anina Wöhl, Wolfgang Müller, Andreas Meiswinkel, Heinz Bölt, Ralf Noack, Marco Harff, Gabriel Waurick, Tobias Meier
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Publication number: 20190314798Abstract: A method for preparing a homogenous catalyst for the production of linear alpha olefins includes: preparing a first pre-catalyst solution comprising a modifier and an organoaluminum compound in a first solvent wherein the first pre-catalyst solution is reacted and stored in a first vessel for a period of time of 1 hour to 90 days; preparing a second pre-catalyst solution comprising a second solvent, a ligand, and a chromium containing compound, wherein the second pre-catalyst solution is stored in a second vessel for a period of time of 1 hour to 90 days; and after a period of time, adding the first pre-catalyst solution to a catalyst pre-formation unit; after the same period of time, adding the second pre-catalyst solution to the catalyst pre-formation unit; forming a homogenous catalyst by mixing the first pre-catalyst solution and the second pre-catalyst solution; adding the homogeneous catalyst to a reaction vessel, wherein the reaction vessel comprises an alpha olefin; and forming the linear alpha olefinType: ApplicationFiled: December 21, 2017Publication date: October 17, 2019Inventors: Abdullah Saad Al-Dughaither, Shahid Azam, Abdulmajeed Mohammed Al-Hamdan, Dafer Mubarak Alshahrani, Sebastiano Licciulli, Anina Wohl, Wolfgang Muller, Heinz Bolt, Andreas Meiswinkel, Tobias Meier, Ralf Noack
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Catalyst composition and process for oligomerization of ethylene to produce 1-hexene and/or 1-octene
Patent number: 10421064Abstract: The present invention relates to a catalyst composition and a process for the oligomerization of ethylene to produce 1-hexene or 1-octene, wherein the catalyst composition comprises a chromium compound; an NPNPN ligand of the formula (R1) (R2)N—P(R3)—N(R4)—P(R5)—N(R6)(R7), wherein R1, R2, R3, R4, R5, R6 and R7 are each independently hydrogen, halogen, amino, trimethylsilyl or C1-C20 hydrocarbyl, preferably straight-chain or branched C1-C10 alkyl, phenyl, C6-C20 aryl or C6-C20 alkyl-substituted phenyl.Type: GrantFiled: July 22, 2015Date of Patent: September 24, 2019Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Mohammed H. Al-Hazmi, Abdullah Alqahtani, Uwe Rosenthal, Bernd H. Muller, Normen Peulecke, Marco Harff, Anina Wohl, Andreas Meiswinkel, Heinz Bolt, Wolfgang Muller -
Patent number: 10407359Abstract: A process for deactivation of an olefin oligomerization catalyst is described, including contacting a catalyst composition with a catalyst quenching medium to form a deactivated catalyst composition, and recovering excess catalyst quenching medium. The catalyst quenching medium includes an alcohol having at least 6 carbon atoms, an organic amine, an amino alcohol, or a combination comprising at least one of the foregoing. The catalyst quenching medium is present in a molar ratio of catalyst quenching medium to catalyst of at least 3:1. A process for the oligomerization of an olefin is also described, including feeding the olefin, a solvent, and a catalyst composition into a reactor, oligomerizing the olefin in the reactor to form a reaction product stream including linear alpha olefins, solvent, and the catalyst composition, and contacting the reaction product stream with a catalyst quenching medium.Type: GrantFiled: September 13, 2016Date of Patent: September 10, 2019Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Abdullah Alqahtani, Anina Wöhl, Wolfgang Müller, Marco Harff, Heinz Bölt, Andreas Metzner, Ralf Noack, Lars-Erik Gärtner, Andreas Meiswinkel
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Publication number: 20190105625Abstract: A method for processing an oligomerization product stream includes discharging the oligomerization product stream from an oligomerization reactor through a product outlet line, and heating the oligomerization product stream, heating a wall of the product outlet line, or both. The oligomerization product stream includes solvent, linear alpha olefins, a polymer byproduct, or a combination of at least one of the foregoing. The heating is to a temperature that is greater than the melting temperature of the polymer byproduct present in the oligomerization product stream.Type: ApplicationFiled: March 17, 2017Publication date: April 11, 2019Inventors: Abdullah Alqahtani, Shahid Azam, Anina Wöhl, Wolfgang Müller, Andreas Meiswinkel, Heinz Bölt, Ralf Noack, Andreas Metzner, Andre Porebski, Tobias Meier
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Patent number: 10112876Abstract: The present invention relates to a process for the oligomerization of ethylene, comprising: a) oligomerization of ethylene in a reactor in the presence of solvent and catalyst; b) transferring reactor overhead effluent to an externally located cooling device and recycling condensed effluent into the reactor; c) transferring the reactor bottom effluent to a series of fractionation columns and, in the following order, i) optionally separating a C4 fraction, ii) separating a C6 fraction, iii) simultaneously separating C8 and C10 fractions and recycling thereof into the reactor , and iv) separating residues comprising ?C12 fractions, spent catalyst polymer material and quench media, from the process, wherein the solvent is separated in any of the steps i)-iv)and/or in an additional step.Type: GrantFiled: September 5, 2013Date of Patent: October 30, 2018Assignee: SAUDI BASIC INDUSTRIES CORPORATIONInventors: Shahid Majeed Azam, Abduljelil Iliyas, Abdullah Mohammad Alqahtani, Shehzada Khurram, Anina Wöhl, Wolfgang Müller, Marco Harff, Andreas Meiswinkel, Heinz Bölt
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Publication number: 20180258009Abstract: A process for deactivation of an olefin oligomerization catalyst is described, including contacting a catalyst composition with a catalyst quenching medium to form a deactivated catalyst composition, and recovering excess catalyst quenching medium. The catalyst quenching medium includes an alcohol having at least 6 carbon atoms, an organic amine, an amino alcohol, or a combination comprising at least one of the foregoing. The catalyst quenching medium is present in a molar ratio of catalyst quenching medium to catalyst of at least 3:1. A process for the oligomerization of an olefin is also described, including feeding the olefin, a solvent, and a catalyst composition into a reactor, oligomerizing the olefin in the reactor to form a reaction product stream including linear alpha olefins, solvent, and the catalyst composition, and contacting the reaction product stream with a catalyst quenching medium.Type: ApplicationFiled: September 13, 2016Publication date: September 13, 2018Applicants: SABIC Global Technologies B.V., LINDE AGInventors: Abdullah Alqahtani, Anina Wöhl, Wolfgang Müller, Marco Harff, Heinz Bölt, Andreas Metzner, Ralf Noack, Lars-Erik Gärtner, Andreas Meiswinkel
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Publication number: 20180086856Abstract: A method (100) is proposed for the preparation of a polyolefin from olefin monomers, wherein the olefin monomers are subjected to one or more polymerisation steps (13), in which a proportion of the olefin monomers are catalytically reacted to form the polyolefin, while the olefin monomers that are not reacted in the polymerisation step or steps (13) are at least partly transferred into one or more gaseous, monomer-containing purge streams (g, h), which additionally contain(s) one or more aluminium organic compounds, which comprise one or more co-catalysts used in the polymerisation step or steps (13) and/or one or more compounds formed from the co-catalyst(s).Type: ApplicationFiled: April 13, 2016Publication date: March 29, 2018Inventors: Andreas MEISWINKEL, Helmut FRITZ, Hans-Jörg ZANDER, Anton KIRZINGER, Josef FREISINGER, Can ULUBAY, Walter HESCH, Thomas WINKLER, Anina WÖHL
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Patent number: 9896391Abstract: The invention relates to a process for preparing linear ?-olefins, wherein ethylene 1a is conducted into the oligomerization reactor 2 in the liquid phase. The oligomerization reactor 2 has a mechanical stirrer 2a in order to ensure optimal mixing of the liquid ethylene and of the catalyst in the liquid phase. From the top of the oligomerization reactor 2, vaporized ethylene is drawn off together with light ?-olefins and a small proportion of the organic solvent. The gas mixture drawn off from the top of the reactor 2 is condensed together with gaseous fresh ethylene 7 by means of heat exchanger 3 and separator 4. The liquid phase drawn off from the separator 4 is conducted by means of circulation pump 5a as liquid ethylene input 1a back into the oligomerization reactor 2. The liquid products of the oligomerization reaction are drawn off 8 laterally from the base of the reactor 2.Type: GrantFiled: January 13, 2011Date of Patent: February 20, 2018Assignee: LINDE AKTIENGESELLSCHAFTInventors: Karl Heinz Hofmann, Hans Jorg Zander, Anton Wellenhofer, Wolfgang Muller, Anina Wohl