Patents by Inventor Jonathan W. Leister
Jonathan W. Leister 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: 10456729Abstract: A process for purification of a carbon dioxide feedstock that includes carbon dioxide and gaseous and liquid C1+ hydrocarbons. Specifically, a carbon dioxide feedstream is passed through one or more separation unit, each separation unit removing one or more C1+ hydrocarbon from the carbon dioxide feedstream to provide a richer carbon dioxide gas stream. The one or more separation unit employs an adsorption media and has an adsorption step and a media regeneration step.Type: GrantFiled: August 5, 2014Date of Patent: October 29, 2019Assignee: Dow Global Technologies LLCInventors: Scott T. Matteucci, Ajay N. Badhwar, H. Robert Goltz, Jonathan W. Leister, Nicholas J. Shurgott
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Patent number: 10456749Abstract: A system for the removal of heat stable amine salts from an amine absorbent used in a carbon dioxide (CO2) capture process.Type: GrantFiled: August 31, 2016Date of Patent: October 29, 2019Assignees: General Electric Technology GMBH, Dow Global Technologies LLCInventors: Nareshkumar B. Handagama, Barath Baburao, Frederic Vitse, Stephen A. Bedell, Jonathan W. Leister, Ross Dugas
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Patent number: 10363519Abstract: The present invention relates to an aqueous alkanolamine solution and use therein a process for the selective removal of hydrogen sulfide from gaseous mixtures comprising hydrogen sulfide. The aqueous alkanolamine solution consists of —an amino compound with the formula: R1R2NCH2CH(OH)CH2OH wherein R1 and R2 independently represent methyl, ethyl, propyl or isopropyl groups —and bis(2-hydroxyethyl)methylamine, —optionally one or more of a physical solvent, an antifoaming agent, an antioxidant, a corrosion inhibitor, a film former, a chelating agent or a pH adjuster and —water The process for selectively removing hydrogen sulfide, comprising the step of contacting the gaseous mixture with the aqueous alkanolamine solution, preferably wherein the temperature of the aqueous alkanolamine solution is equal to or greater than 140° F.Type: GrantFiled: May 17, 2016Date of Patent: July 30, 2019Assignee: Dow Global Technologies LLCInventors: Ross E. Dugas, Christophe R. Laroche, Jonathan W. Leister
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Publication number: 20180290101Abstract: The present invention relates to an aqueous alkanolamine solution and use therein a process for the selective removal of hydrogen sulfide from gaseous mixtures comprising hydrogen sulfide. The aqueous alkanolamine solution consists of—an amino compound with the formula: R1R2NCH2CH(OH)CH2OH wherein R1 and R2 independently represent methyl, ethyl, propyl or isopropyl groups—and bis(2-hydroxyethyl)methylamine,—optionally one or more of a physical solvent, an antifoaming agent, an antioxidant, a corrosion inhibitor, a film former, a chelating agent or a pH adjuster and—water The process for selectively removing hydrogen sulfide, comprising the step of contacting the gaseous mixture with the aqueous alkanolamine solution, preferably wherein the temperature of the aqueous alkanolamine solution is equal to or greater than 140° F.Type: ApplicationFiled: May 17, 2016Publication date: October 11, 2018Inventors: Ross E. Dugas, Christophe R. Laroche, Jonathan W, Leister
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Publication number: 20180161721Abstract: An improved composition and method for acid gas treatment, comprising an effective amount of tetraethylene glycol dimethyl ether in combination with other alkyl ethers of alkylene glycols. Utilization of a mixture consisting of 60 to 84 weight percent tetraethylene glycol dimethyl ether produces significant benefits in freeze point reduction. A solvent based said mixture of 60 to 84 weight percent tetraethylene glycol dimethyl ether can be used neat or as an aqueous mixture or can be added to the existing recirculating solvent stream to change the concentration of tetraethylene glycol dimethyl ether to a satisfactory level.Type: ApplicationFiled: June 3, 2016Publication date: June 14, 2018Inventors: Ross E. Dugas, Jonathan W. Leister, Jack D. Mcjannett
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Patent number: 9976091Abstract: Disclosed is a method of sequentially separating and recovering one or more NGLs (129, 229) from a natural gas feedstream (3). Specifically, a raw natural gas feedstream (3) is passed through two or more NGLs separation unit (100, 200) wherein each separation unit removes one or more NGLs from the natural gas feedstream to provide a methane-rich natural gas supply (205). Each separation unit employs an adsorption media and has an adsorption step and a media regeneration step wherein the regeneration step may be operated as a batch process, a semi-continuous process, or a continuous process. One embodiment of this method provides for the use of a different regenerable adsorbent media in each separation unit.Type: GrantFiled: August 5, 2014Date of Patent: May 22, 2018Assignee: Dow Global Technologies LLCInventors: Scott T. Matteucci, H. Robert Goltz, Ajay N. Badhwar, Nicholas J. Shurgott, Jonathan W. Leister
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Patent number: 9943801Abstract: Disclosed is an improved process for regenerating solvent used to remove contaminants from a fluid stream. Said process comprises a solvent regeneration system (10) comprising a rich/lean solvent stripper column (29), reboiler (50), condenser (36), and reflux receiver (38) wherein the improvement is the location 46 of the condensed stripper gas return from the reflux receiver.Type: GrantFiled: September 11, 2014Date of Patent: April 17, 2018Assignee: Dow Global Technologies LLCInventors: Jonathan W. Leister, Ross E. Dugas
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Publication number: 20170216759Abstract: The present invention relates to a process for purification of a carbon dioxide feedstock, for example from a production well, which comprises carbon dioxide and gaseous and liquid C1+ hydrocarbons. Specifically, a carbon dioxide feedstream is passed through one or more separation unit wherein each separation unit removes one or more C1+ hydrocarbon from the carbon dioxide feedstream to provide a richer carbon dioxide gas stream. The process comprises one or more separation unit which employs an adsorption media and has an adsorption step and a media regeneration step wherein the regeneration step may be operated as a batch process, a semi-continuous process, or a continuous process. One embodiment of this method provides for the use of a different regenerable adsorbent media in two or more separation units.Type: ApplicationFiled: August 5, 2014Publication date: August 3, 2017Applicant: Dow Global Technologies LLCInventors: Scott T. Matteucci, Ajay N. Badhwar, H. Robert Goltz, Jonathan W. Leister, Nicholas J. Shurgott
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Publication number: 20170066988Abstract: Disclosed is an improved process for recovering condensable components from a gas stream, in particular, heavier hydrocarbons from a gas stream. The present process uses solid adsorbent media to remove said heavier hydrocarbons wherein the adsorbent media is regenerated in a continuous fashion in a continuous adsorbent media co-current regeneration system using a stripping gas to provide a regenerated adsorbent media and a product gas comprising heavier hydrocarbons from a loaded adsorbent media.Type: ApplicationFiled: August 5, 2014Publication date: March 9, 2017Applicant: Dow Global Technologies LLCInventors: Jonathan W. Leister, Ajay N. Badhwar, Ross E. Dugas, H. Robert Goltz, Scott T. Matteucci
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Publication number: 20170066987Abstract: Disclosed is an improved process for recovering condensable components from a gas stream, in particular, heavier hydrocarbons from a gas stream. The present process uses solid adsorbent media to remove said heavier hydrocarbons wherein the adsorbent media is regenerated in a continuous fashion in a continuous adsorbent media counter-current regeneration system using a stripping gas to provide a regenerated adsorbent media and a product gas comprising heavier hydrocarbons from a loaded adsorbent media. The improvement is the use of a portion of the product gas from the regeneration unit as the stripping gas.Type: ApplicationFiled: August 5, 2014Publication date: March 9, 2017Applicant: Dow Global Technologies LLCInventors: Jonathan W. Leister, Ajay N. Badhwar, Ross E. Dugas, H. Robert Goltz, Scott T. Matteucci
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Publication number: 20160367944Abstract: A system for the removal of heat stable amine salts from an amine absorbent used in a carbon dioxide (CO2) capture process.Type: ApplicationFiled: August 31, 2016Publication date: December 22, 2016Inventors: Nareshkumar B. HANDAGAMA, Barath BABURAO, Frederic VITSE, Stephen A. BEDELL, Jonathan W. LEISTER, Ross DUGAS
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Publication number: 20160340596Abstract: Disclosed is a method of sequentially separating and recovering one or more NGLs (129, 229) from a natural gas feedstream (3). Specifically, a raw natural gas feedstream (3) is passed through two or more NGLs separation unit (100, 200) wherein each separation unit removes one or more NGLs from the natural gas feedstream to provide a methane-rich natural gas supply (205). Each separation unit employs an adsorption media and has an adsorption step and a media regeneration step wherein the regeneration step may be operated as a batch process, a semi-continuous process, or a continuous process. One embodiment of this method provides for the use of a different regenerable adsorbent media in each separation unit.Type: ApplicationFiled: August 5, 2014Publication date: November 24, 2016Applicant: Dow Global Technologies LLCInventors: Scott T. MATTEUCCI, H. Robert GOLTZ, Ajay N. BADHWAR, Nicholas J. SHURGOTT, Jonathan W. LEISTER
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Publication number: 20160193560Abstract: Disclosed is an improved process for regenerating solvent used to remove contaminants from a fluid stream. Said process comprises a solvent regeneration system (10) comprising a rich/lean solvent stripper column (29), reboiler (50), condenser (36), and reflux receiver (38) wherein the improvement is the location 46 of the condensed stripper gas return from the reflux receiver.Type: ApplicationFiled: September 11, 2014Publication date: July 7, 2016Inventors: Jonathan W. Leister, Ross E. Dugas
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Publication number: 20140363347Abstract: The present application relates to a system for removal of gaseous contaminants from a gas stream. The system includes an absorber for contacting the gas stream with a wash solution to form a used wash stream, a regenerator for regenerating the used wash solution, a reboiler and at least two heat exchangers in fluid communication with the absorber, regenerator and reboiler.Type: ApplicationFiled: August 26, 2014Publication date: December 11, 2014Inventors: Barath BABURAO, Jonathan W. Leister, Frederic Vitse
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Patent number: 8906149Abstract: The present application relates to a system for removal of gaseous contaminants from a gas stream. The system includes an absorber for contacting the gas stream with a wash solution to form a used wash stream, a regenerator for regenerating the used wash solution, a reboiler and at least two heat exchangers in fluid communication with the absorber, regenerator and reboiler.Type: GrantFiled: August 26, 2014Date of Patent: December 9, 2014Assignee: ALSTOM Technology LtdInventors: Barath Baburao, Jonathan W. Leister, Frederic Vitse
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Patent number: 8845790Abstract: A method and system for removing gaseous contaminants from a gas stream by contacting the gas stream with a wash solution and regenerating the wash solution in a regeneration system for future use in removing gaseous contaminants from the gas stream.Type: GrantFiled: September 21, 2011Date of Patent: September 30, 2014Assignee: ALSTOM Technology LtdInventors: Jonathan W. Leister, Barath Baburao, Frederic Vitse
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Patent number: 8845789Abstract: The present application relates to systems and processes for removal of gaseous contaminants from gas streams. In particular, the application relates to a process for removal of gaseous contaminants from a gas stream comprising contacting the gas stream with a wash solution to remove gaseous contaminants from the gas stream by absorption into the wash solution; and regenerating the used wash solution to remove gaseous contaminants from the used wash solution, to provide a regenerated wash solution and a gas comprising removed contaminants, wherein in a first regeneration stage the gas comprising removed contaminants is cooled to minimize loss of water vapor from the regeneration step.Type: GrantFiled: March 26, 2010Date of Patent: September 30, 2014Assignee: ALSTOM Technology LtdInventors: Barath Baburao, Jonathan W. Leister, Frederic Vitse
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Publication number: 20120235087Abstract: The proposed invention relates to a method and a system for the removal of heat stable amine salts from an amine absorbent used in a carbon dioxide (CO2) capture process, the method comprising: withdrawing amine absorbent containing heat stable amine salts from the CO2 capture process; subjecting the withdrawn amine absorbent containing heat stable amine salts to a residual CO2 removal step; subjecting the amine absorbent from the residual CO2 removal step to a separation step to separate heat stable amine salts from the amine absorbent; and returning the amine absorbent having a reduced concentration of heat stable amine salts to the CO2 capture process.Type: ApplicationFiled: September 29, 2011Publication date: September 20, 2012Applicants: DOW GLOBAL TECHNOLOGIES LLC, ALSTOM TECHNOLOGY LTD.Inventors: Nareshkumar B. HANDAGAMA, Barath BABURAO, Frederic VITSE, Stephen A. BEDELL, Jonathan W. LEISTER, Ross DUGAS
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Publication number: 20120174783Abstract: A method and system for removing gaseous contaminants from a gas stream by contacting the gas stream with a wash solution and regenerating the wash solution in a regeneration system for future use in removing gaseous contaminants from the gas stream.Type: ApplicationFiled: September 21, 2011Publication date: July 12, 2012Applicant: ALSTOM TECHNOLOGY LTDInventors: Jonathan W. Leister, Barath Baburao, Frederic Vitse
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Publication number: 20100242731Abstract: The present application relates to systems and processes for removal of gaseous contaminants from gas streams. In particular, the application relates to a process for removal of gaseous contaminants from a gas stream comprising contacting the gas stream with a wash solution to remove gaseous contaminants from the gas stream by absorption into the wash solution; and regenerating the used wash solution to remove gaseous contaminants from the used wash solution, to provide a regenerated wash solution and a gas comprising removed contaminants, wherein in a first regeneration stage the gas comprising removed contaminants is cooled to minimize loss of water vapor from the regeneration step.Type: ApplicationFiled: March 26, 2010Publication date: September 30, 2010Applicant: ALSTOM TECHNOLOGY LTDInventors: Barath Baburao, Jonathan W. Leister, Frederic Vitse