Patents by Inventor David L. Ramage
David L. Ramage 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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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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Patent number: 11807597Abstract: Methods and systems for producing acetic acid, including glacial acetic acid. A first stream of a reactor fluid that includes methyl acetate, water, and a first amount of carbon monoxide may be forwarded from a reactor to a reactor cooler to form a cooled reactor fluid. The cooled reactor fluid may have a concentration of methyl acetate that is lower than the concentration of methyl acetate in the reactor fluid.Type: GrantFiled: March 31, 2022Date of Patent: November 7, 2023Assignee: LyondellBasell Acetyls, LLCInventors: Vasilis Papavassiliou, Noel C. Hallinan, David L. Ramage, Gary A. Sawyer, Rene Zamarripa, Michael E. Fitzpatrick, Brian A. Salisbury
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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: 20230234908Abstract: A system and method for removing acetaldehyde from an acetic acid system, including providing a solution from the acetic acid system, the stream having methyl iodide and acetaldehyde, and contacting the solution with a polymer-bound polyol.Type: ApplicationFiled: January 10, 2023Publication date: July 27, 2023Applicant: LyondellBasell Acetyls, LLCInventors: Noel C. Hallinan, David L. Ramage, Brian A. Salisbury
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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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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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Publication number: 20220315516Abstract: Methods and systems for producing acetic acid, including glacial acetic acid. A first stream of a reactor fluid that includes methyl acetate, water, and a first amount of carbon monoxide may be forwarded from a reactor to a reactor cooler to form a cooled reactor fluid. The cooled reactor fluid may have a concentration of methyl acetate that is lower than the concentration of methyl acetate in the reactor fluid.Type: ApplicationFiled: March 31, 2022Publication date: October 6, 2022Applicant: LyondellBasell Acetyls, LLCInventors: Vasilis Papavassiliou, Noel C. Hallinan, David L. Ramage, Gary A. Sawyer, Rene Zamarripa
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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: 20210070958Abstract: 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: ApplicationFiled: September 9, 2020Publication date: March 11, 2021Applicant: 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: 20210046465Abstract: Reactor liquids, compositions, and methods of forming acetic acid, which may reduce catalyst loss. The reactor liquids and compositions may include, and the methods may use, a tri-aliphatic hydrocarbyl phosphine oxide. The carbonylation catalyst used in the methods may include rhodium. A composition comprising: acetic acid; water; and at least one tri-aliphatic hydrocarbyl phosphine oxide; wherein the acetic acid is present in the composition at an amount of about 60% to about 80%, by weight, based on the weight of the composition; wherein the water is present in the composition at an amount of about 0.1% to about 6%, by weight, based on the weight of the composition; and wherein the at least one tri-aliphatic hydrocarbyl phosphine oxide is present in the composition at an amount of about 2% to about 20%, by weight, based on the weight of the composition.Type: ApplicationFiled: August 11, 2020Publication date: February 18, 2021Applicant: LyondellBasell Acetyls, LLCInventors: David L. Ramage, Rene Zamarripa
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Patent number: 10710953Abstract: A method comprising: contacting methanol with carbon monoxide in the presence of a liquid reaction medium under carbonylation conditions to form a carbonylation product comprising acetic acid; separating the carbonylation product into a liquid fraction and a vapor fraction comprising a majority of the acetic acid in the carbonylation product; removing, from the vapor fraction, water, light ends having a boiling point less than acetic acid, heavy ends having a boiling point greater than acetic acid, or a combination thereof, to yield a crude acetic acid product comprising at least 99.5 wt % acetic acid, less than or equal to 0.2 wt % water, and less than or equal to 2000 ppm oxidizable impurities, based on the total weight of the crude acetic acid product; and contacting the crude acetic acid product with an acidic ion exchange resin to provide a purified acetic acid product comprising less than 100 ppm oxidizable impurities.Type: GrantFiled: March 22, 2019Date of Patent: July 14, 2020Assignee: LyondellBasell Acetyls, LLCInventors: Noel C. Hallinan, David L. Ramage, Daniel F. White
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Patent number: 10584087Abstract: A method of producing acetic acid, the method comprising: reacting methanol and/or methanol derivatives with carbon monoxide in the presence of a liquid reaction medium under carbonylation conditions to form a carbonylation product comprising acetic acid and one or more oxidizable impurities; and contacting at least a portion of the carbonylation product or a derivative thereof with an adsorbent at adsorption conditions to provide a purified product comprising a reduced concentration of at least one of the one or more oxidizable impurities relative to a concentration thereof in the at least a portion of the carbonylation product or the derivative thereof. A system for carrying out the method is also provided.Type: GrantFiled: March 22, 2019Date of Patent: March 10, 2020Assignee: LyondellBasell Acetyls, LLCInventors: Noel C. Hallinan, David L. Ramage, Daniel F. White
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Publication number: 20190292123Abstract: A method comprising: contacting methanol with carbon monoxide in the presence of a liquid reaction medium under carbonylation conditions to form a carbonylation product comprising acetic acid; separating the carbonylation product into a liquid fraction and a vapor fraction comprising a majority of the acetic acid in the carbonylation product; removing, from the vapor fraction, water, light ends having a boiling point less than acetic acid, heavy ends having a boiling point greater than acetic acid, or a combination thereof, to yield a crude acetic acid product comprising at least 99.5 wt % acetic acid, less than or equal to 0.2 wt % water, and less than or equal to 2000 ppm oxidizable impurities, based on the total weight of the crude acetic acid product; and contacting the crude acetic acid product with an acidic ion exchange resin to provide a purified acetic acid product comprising less than 100 ppm oxidizable impurities.Type: ApplicationFiled: March 22, 2019Publication date: September 26, 2019Applicant: LyondellBasell Acetyls, LLCInventors: Noel C. Hallinan, David L. Ramage, Daniel F. White
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Publication number: 20190292124Abstract: A method of producing acetic acid, the method comprising: reacting methanol and/or methanol derivatives with carbon monoxide in the presence of a liquid reaction medium under carbonylation conditions to form a carbonylation product comprising acetic acid and one or more oxidizable impurities; and contacting at least a portion of the carbonylation product or a derivative thereof with an adsorbent at adsorption conditions to provide a purified product comprising a reduced concentration of at least one of the one or more oxidizable impurities relative to a concentration thereof in the at least a portion of the carbonylation product or the derivative thereof. A system for carrying out the method is also provided.Type: ApplicationFiled: March 22, 2019Publication date: September 26, 2019Applicant: LyondellBasell Acetyls, LLCInventors: Noel C. Hallinan, David L. Ramage, Daniel F. White
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Patent number: 10246398Abstract: Processes for producing carboxylic acid are included herein. The processes include contacting an alcohol and carbon monoxide in the presence of a liquid reaction medium under carbonylation conditions sufficient to form a carbonylation product including the carboxylic acid and recovering the carboxylic acid from the carbonylation product. The liquid reaction medium may include a carbonylation catalyst selected from rhodium catalysts, iridium catalysts and palladium catalysts; water in a water concentration ranging from 1 wt. % to 14 wt. % based on the total liquid reaction medium weight; and an additive, one or more in situ generated derivatives of the additive or combinations thereof, wherein the additive includes one or more salts of one or more compounds, each compound including at least one amino group and at least one acid group, the at least one acid group capable of forming an alkali metal salt.Type: GrantFiled: November 1, 2016Date of Patent: April 2, 2019Assignee: LyondellBasell Acetyls, LLCInventors: Noel C. Hallinan, David L. Ramage, Daniel F. White
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Patent number: 10118884Abstract: The present disclosure provides for a method for measuring the concentration of one or more components in a reactor or a separation unit of an acetic acid process by Raman spectroscopic analyses. In some embodiments, the conditions in the reactor or in any subsequent step of the acetic acid production process are adjusted in response to the measured concentration of one or more components.Type: GrantFiled: April 10, 2017Date of Patent: November 6, 2018Assignee: LyondellBasell Acetyls, LLCInventors: Noel C. Hallinan, David L. Ramage, David A. Heaps