Patents by Inventor Sandor Nagy
Sandor Nagy 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: 12173124Abstract: Methods of depolymerizing polyolefin-based material into useful petrochemical products using styrene oligomers or polymers, and heat are described. The styrene oligomers or polymers improve the depolymerization reaction by decreasing the halftime for the depolymerization, which results in a higher depolymerization rate and a shorter residence time in the depolymerization unit, allowing for a predictable depolymerization reaction, and decreasing the branching or aromatic formations in the product.Type: GrantFiled: October 7, 2021Date of Patent: December 24, 2024Assignee: Basell Poliolefine Italia S.r.l.Inventors: Sandor Nagy, Daniel F. White, Christopher D. Smith, David L Ramage
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Publication number: 20240327715Abstract: A process for depolymerizing plastic waste including the steps of: a) providing a melt plastic waste feedstock made from or containing recycled polypropylene and polyethylene; and b) subjecting the melt product obtained in (a) to a temperature ranging from 280° C. to 600° C., thereby obtaining a depolymerization product; wherein the melt product, the depolymerization product, or both are contacted with a catalyst made from or containing a supported heteropolyacid, having a transition metal portion containing transition metals selected from the group consisting of W, Mo, and V and a non-metal portion containing non-metal elements selected from the group consisting of Si, P, and As.Type: ApplicationFiled: November 15, 2022Publication date: October 3, 2024Applicant: Basell Poliolefine Italia S.r.l.Inventors: Diego Brita, Simona Guidotti, Dario Liguori, Francesco Menichelli, Sandor Nagy, Noel C. Hallinan
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Publication number: 20240228405Abstract: Catalytic compositions and processes for depolymerizing polyolefin-based feed into useful petrochemical products are described. The compositions are a composite of a zeolite catalyst component and a co-catalyst comprising an activated clay component and/or a solid base component. These catalyst systems, along with heat, are used to both increase the depolymerization reaction rate of the feed streams and suppress poisoning effects of impurities that may be present in the polyolefin-based feed. This results in a shorter residence time in the depolymerization unit and more efficient process.Type: ApplicationFiled: October 24, 2023Publication date: July 11, 2024Applicant: Basell Poliolefine Italia S.r.l.Inventors: Sandor Nagy, Christopher D. Smith, Daniel F. White, Diego Brita, Simona Guidotti, Dario Liguori, Francesco Menichelli, Paolo Ruzzi
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Publication number: 20240182388Abstract: Processes for conversion of propylene polyol feed into useful petrochemical products, including olefin monomers, are described. Such processes comprise: adding a feed stream comprising one or more propylene polyols to a dehydration cleavage reaction zone in the presence of a dehydration cleavage catalyst and reacting at a pressure and temperature sufficient to form a product stream comprising propionaldehyde, a dioxolane component, and a dioxane component; and adding the product stream and hydrogen to a dehydration reaction zone in the presence of a hydrogenation catalyst to form and reacting at a pressure and temperature sufficient to form a second product stream comprising a propanol component. The second product can be added to a dehydration reaction zone in the presence of a dehydration catalyst and reacted at a pressure and temperature sufficient to form a third product stream comprising propylene.Type: ApplicationFiled: December 1, 2023Publication date: June 6, 2024Applicant: Basell Poliolefine Italia S.r.l.Inventors: Sandor Nagy, David S. Mannel, Natalia Nagy, Amy D. Rose, George R. Horvat, Larry W. Arndt, David W. Leyshon, Xueyong Yang, Barbara Kimmich
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Publication number: 20240182389Abstract: Processes for conversion of propylene polyol feed into useful petrochemical products, including olefin monomers, are described. Such processes comprise: adding a feed stream comprising one or more propylene polyols, hydrogen, and optionally water, to a catalytic conversion reaction zone in the presence of a first solid acid catalyst component and a hydrogenation catalyst component and reacting at a pressure and temperature sufficient to form a first product stream comprising a propanol component. The first product stream can be added to a dehydration reaction zone in the presence of a dehydration catalyst and reacted at a pressure and temperature sufficient to form a second product stream comprising propylene.Type: ApplicationFiled: December 1, 2023Publication date: June 6, 2024Applicant: Basell Poliolefine Italia S.r.l.Inventors: Sandor Nagy, David S. Mannel, Natalia Nagy, Amy D. Rose, George R. Horvat, Larry W. Arndt, David W. Leyshon, Xueyong Yang, Barbara Kimmich
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Patent number: 11980872Abstract: Epoxidation methods and catalyst are described herein. The epoxidation catalysts generally include a metal component including silver and a support material including kaolinite, wherein the epoxidation catalyst includes less than 55 wt. % metal component.Type: GrantFiled: July 17, 2020Date of Patent: May 14, 2024Assignee: Lyondell Chemical Technology, L.P.Inventors: Sandor Nagy, Barbara Kimmich
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Publication number: 20240132425Abstract: Catalytic compositions and processes for depolymerizing polyolefin-based feed into useful petrochemical products are described. The compositions are a composite of a zeolite catalyst component and a co-catalyst comprising an activated clay component and/or a solid base component. These catalyst systems, along with heat, are used to both increase the depolymerization reaction rate of the feed streams and suppress poisoning effects of impurities that may be present in the polyolefin-based feed. This results in a shorter residence time in the depolymerization unit and more efficient process.Type: ApplicationFiled: October 23, 2023Publication date: April 25, 2024Applicant: Basell Poliolefine Italia S.r.l.Inventors: Sandor Nagy, Christopher D. Smith, Daniel F. White, Diego Brita, Simona Guidotti, Dario Liguori, Francesco Menichelli, Paolo Ruzzi
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Publication number: 20240076467Abstract: Catalytic compositions for depolymerizing polyolefin-based waste material into useful petrochemical products and methods of use are described. The catalytic compositions are mixed metal oxides demonstrating equal or higher conversion than noncatalytic pyrolysis. These mixed metal oxide catalysts and a polyolefin-based material are heated in the presence of oxygen to form a product comprising one or more olefin monomers.Type: ApplicationFiled: August 24, 2023Publication date: March 7, 2024Applicant: Basell Poliolefine Italia S.r.l.Inventors: Daniel F. White, Sandor Nagy, Christopher D. Smith, David L. Ramage, Noel C. Hallinan
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Patent number: 11872545Abstract: Catalytic compositions for depolymerizing polyolefin-based waste material into useful petrochemical products and methods of use are described. The compositions are a composite of at least one zeolite catalyst with one or more co-catalyst(s) that is a solid inorganic material. These composite catalysts, along with heat, are used to both increase the depolymerization reaction rate of the feed streams and suppress poisoning effects of non-polyolefin polymers that may be present. This results in a shorter residence time in the depolymerization unit and more efficient process.Type: GrantFiled: December 3, 2021Date of Patent: January 16, 2024Assignee: Basell Poliolefine Italia SrlInventors: Sandor Nagy, Daniel F. White, Christopher D. Smith, David L. Ramage, Diego Brita, Noel C. Hallinan
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USE OF CARBON DIOXIDE TO IMPROVE CAUSTIC WASHING OF ALKYLENE OXIDE / ALKENYL BENZENE MONOMER STREAMS
Publication number: 20230339832Abstract: A method for removing metal salts from alkylaromatic oxidate streams used for alkene oxide production, or used in the co-production of propylene oxide and styrene monomer (“POSM”), and methods for caustic washing of oxidate streams formed in these processes. The concentration of metal salts carried over from a caustic washing may be reduced by washing the organic phase resulting from the caustic wash with water in the presence of carbon dioxide (CO2). The CO2 may be provided in any form, such as gaseous CO2, dry ice, carbonated water, supercritical (liquid) CO2, or any other suitable form.Type: ApplicationFiled: April 20, 2023Publication date: October 26, 2023Applicant: Lyondell Chemical Technology, L.P.Inventors: David W. Leyshon, Sandor Nagy, Elizabeth I. Ross-Medgaarden -
Patent number: 11767408Abstract: Methods of depolymerizing polyolefin-based material into useful petrochemical products using supported metal oxides and heat are described. The supported metal oxides improve the depolymerization reaction by decreasing the half time for the depolymerization, which results in a higher depolymerization rate and a shorter residence time in the depolymerization unit, allowing for a predictable depolymerization reaction, and decreasing the branching or aromatic formations in the product.Type: GrantFiled: October 29, 2021Date of Patent: September 26, 2023Assignee: Basell Poliolefine Italia S.r.l.Inventors: Sandor Nagy, Daniel F. White, Christopher D. Smith, Xueyong Yang, David L. Ramage
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Publication number: 20230106395Abstract: A method of depolymerizing polymeric material including the steps of: (a) feeding a polymeric material to a depolymerization reactor maintained at a temperature in the range of from 400° C. to 600° C. and operated under a pressure in the range of from 4 to 15 barg; and (b) depolymerizing at least a portion of the polymeric material thereby forming a first gaseous product and a first liquid product.Type: ApplicationFiled: September 28, 2022Publication date: April 6, 2023Applicant: Basell Poliolefine Italia S.r.l.Inventors: David L. Ramage, Christopher D. Smith, Xueyong Yang, Daniel F. White, Sandor Nagy
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Patent number: 11590477Abstract: Methods of preparing titanated silica catalysts, and titanated silica catalysts. The titanated silica catalysts may include a silica support, which may include spherical beads. Methods of olefin epoxidation, which may include contacting an olefin with a titanated silica catalyst in the presence of an oxidant.Type: GrantFiled: November 2, 2020Date of Patent: February 28, 2023Assignee: Lyondell Chemical Technology, L.P.Inventors: Sandor Nagy, Nicholas Bruschi, Elizabeth I. Ross-Medgaarden, David W. Leyshon, Barbara Kimmich
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Publication number: 20230009131Abstract: Pre-treatment methods for polyolefin-based feed streams before depolymerization are described. Polyolefins are separated from other material in the polyolefin-based feed stream using density differences in an aqueous solution, which allows for a pre-treatment method that does not affect the depolymerization catalyst. By removing the non-polyolefin materials from the feed stream, the depolymerization of the polyolefin material can proceed at lower temperatures for longer cycles. This results in a more efficient process with a smaller carbon footprint.Type: ApplicationFiled: July 8, 2022Publication date: January 12, 2023Applicant: Basell Poliolefine Italia S.r.l.Inventors: Sandor Nagy, Diego Brita, Christopher D. Smith, David A. Heaps, Daniel F. White, David L. Ramage
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Patent number: 11377534Abstract: Methods of depolymerizing polyolefin-based material into useful petrochemical products using metal oxides and heat are described. The metal oxides improve the depolymerization reaction by decreasing the onset temperature for the depolymerization, which results in a higher depolymerization rate and a shorter residence time in the depolymerization unit, allowing for a predictable depolymerization reaction, and decreasing the branching or aromatic formations in the product.Type: GrantFiled: September 9, 2020Date of Patent: July 5, 2022Assignee: Basell Poliolefine Italia S.r.l.Inventors: Diego Brita, Sheri E. Davis, Yulenty Deal, Simona Guidotti, Dario Liguori, Sandor Nagy, Christopher D. Smith, Daniel F. White, Xueyong Yang, Shahram Mihan
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Publication number: 20220176358Abstract: Catalytic compositions for depolymerizing polyolefin-based waste material into useful petrochemical products and methods of use are described. The compositions are a composite of at least one zeolite catalyst with one or more co-catalyst(s) that is a solid inorganic material. These composite catalysts, along with heat, are used to both increase the depolymerization reaction rate of the feed streams and suppress poisoning effects of non-polyolefin polymers that may be present. This results in a shorter residence time in the depolymerization unit and more efficient process.Type: ApplicationFiled: December 3, 2021Publication date: June 9, 2022Applicant: Basell Poliolefine Italia S.r.l.Inventors: Sandor Nagy, Daniel F. White, Christopher D. Smith, David L. Ramage, Diego Brita, Noel C. Hallinan
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Publication number: 20220135760Abstract: Methods of depolymerizing polyolefin-based material into useful petrochemical products using supported metal oxides and heat are described. The supported metal oxides improve the depolymerization reaction by decreasing the half time for the depolymerization, which results in a higher depolymerization rate and a shorter residence time in the depolymerization unit, allowing for a predictable depolymerization reaction, and decreasing the branching or aromatic formations in the product.Type: ApplicationFiled: October 29, 2021Publication date: May 5, 2022Applicant: Basell Poliolefine Italia S.r.l.Inventors: Sandor Nagy, Daniel F. White, Christopher D. Smith, Xueyong Yang, David L. Ramage
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Patent number: 11319424Abstract: A method of depolymerizing plastics using a halloysite catalyst is described herein. The method reduces the energy required for the depolymerization process while achieving improved depolymerization results.Type: GrantFiled: September 9, 2020Date of Patent: May 3, 2022Assignee: Basell Poliolefine Italia S.r.l.Inventors: Diego Brita, Sheri E. Davis, Volker Fraaije, Simona Guidotti, Dario Liguori, Sandor Nagy, David L. Ramage, Shahram Mihan, Christopher D. Smith, Daniel F. White, Xueyong Yang
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Publication number: 20220112352Abstract: Methods of depolymerizing polyolefin-based material into useful petrochemical products using styrene oligomers or polymers, and heat are described. The styrene oligomers or polymers improve the depolymerization reaction by decreasing the halftime for the depolymerization, which results in a higher depolymerization rate and a shorter residence time in the depolymerization unit, allowing for a predictable depolymerization reaction, and decreasing the branching or aromatic formations in the product.Type: ApplicationFiled: October 7, 2021Publication date: April 14, 2022Applicant: Basell Poliolefine Italia S.r.l.Inventors: Sandor Nagy, Daniel F. White, Christopher D. Smith, David L. Ramage
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Publication number: 20210129112Abstract: Methods of preparing titanated silica catalysts, and titanated silica catalysts. The titanated silica catalysts may include a silica support, which may include spherical beads. Methods of olefin epoxidation, which may include contacting an olefin with a titanated silica catalyst in the presence of an oxidant.Type: ApplicationFiled: November 2, 2020Publication date: May 6, 2021Applicant: Lyondell Chemical Technology, L.P.Inventors: Sandor Nagy, Nicholas Bruschi, Elizabeth I. Ross-Medgaarden, David W. Leyshon, Barbara Kimmich