Patents by Inventor Graeme Douglas Puxty
Graeme Douglas Puxty 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: 12023624Abstract: A process for absorbing carbon dioxide from a gas stream containing carbon dioxide, including the steps of contacting the gas stream with an aqueous composition including a substituted heteroaromatic compound having a six-membered heteroaromatic ring with from 1 to 3 nitrogen atoms in the heteroaromatic ring and at least one substituent wherein at least one of the substituents is of formula —R1NH2 wherein R1 is selected from C1 to C6 alkylene and ethers of formula —R2—O—R3— wherein R2 and R3 are C1 to C3 alkylene.Type: GrantFiled: February 21, 2023Date of Patent: July 2, 2024Assignee: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATIONInventors: Graeme Douglas Puxty, William Conway, Qi Yang, Paul Hubert Maria Feron
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Publication number: 20230256381Abstract: A process for absorbing carbon dioxide from a gas stream containing carbon dioxide, including the steps of contacting the gas stream with an aqueous composition including a substituted heteroaromatic compound having a six-membered heteroaromatic ring with from 1 to 3 nitrogen atoms in the heteroaromatic ring and at least one substituent wherein at least one of the substituents is of formula —R1NH2 wherein R1 is selected from C1 to C6 alkylene and ethers of formula —R2—O—R3— wherein R2 and R3 are C1 to C3 alkyleneType: ApplicationFiled: February 21, 2023Publication date: August 17, 2023Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATIONInventors: Graeme Douglas PUXTY, William CONWAY, Qi YANG, Paul Hubert Maria FERON
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Patent number: 11602714Abstract: A process for absorbing carbon dioxide from a gas stream containing carbon dioxide, including the steps of contacting the gas stream with an aqueous composition including a substituted heteroaromatic compound having a six-membered heteroaromatic ring with from 1 to 3 nitrogen atoms in the heteroaromatic ring and at least one substituent wherein at least one of the substituents is of formula —R1NH2 wherein R1 is selected from C1 to C6 alkylene and ethers of formula —R2—O—R3— wherein R2 and R3 are C1 to C3 alkylene.Type: GrantFiled: August 3, 2021Date of Patent: March 14, 2023Assignee: COMMONWEATH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATIONInventors: Graeme Douglas Puxty, William Conway, Qi Yang, Paul Hubert Maria Feron
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Publication number: 20210362090Abstract: A process for absorbing carbon dioxide from a gas stream containing carbon dioxide, including the steps of contacting the gas stream with an aqueous composition including a substituted heteroaromatic compound having a six-membered heteroaromatic ring with from 1 to 3 nitrogen atoms in the heteroaromatic ring and at least one substituent wherein at least one of the substituents is of formula —R1NH2 wherein R1 is selected from C1 to C6 alkylene and ethers of formula —R2—O—R3— wherein R2 and R3 are C1 to C3 alkylene.Type: ApplicationFiled: August 3, 2021Publication date: November 25, 2021Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATIONInventors: Graeme Douglas PUXTY, William CONWAY, Qi YANG, Paul Hubert Maria FERON
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Patent number: 11123684Abstract: A process for absorbing carbon dioxide from a gas stream containing carbon dioxide, including contacting the gas stream with an aqueous composition having a substituted heteroaromatic compound including a six-membered heteroaromatic ring comprising from 1 to 3 nitrogen atoms in the heteroaromatic ring and at least one substituent wherein at least one of the substituents is of formula —R1NH2 wherein R1 is selected from C1 to C6 alkylene and ethers of formula —R2—O—R3— wherein R2 and R3 are C1 to C3 alkylene.Type: GrantFiled: May 22, 2018Date of Patent: September 21, 2021Assignee: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATIONInventors: Graeme Douglas Puxty, William Conway, Qi Yang, Paul Hubert Maria Feron
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Publication number: 20190291044Abstract: A process for absorbing carbon dioxide from a gas stream containing carbon dioxide, including contacting the gas stream with an aqueous composition having a substituted heteroaromatic compound including a six-membered heteroaromatic ring comprising from 1 to 3 nitrogen atoms in the heteroaromatic ring and at least one substituent wherein at least one of the substituents is of formula —R1NH2 wherein R1 is selected from C1 to C6 alkylene and ethers of formula —R2—O—R3— wherein R2 and R3 are C1 to C3 alkylene.Type: ApplicationFiled: May 22, 2018Publication date: September 26, 2019Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATIONInventors: Graeme Douglas PUXTY, William CONWAY, Qi YANG, Paul Hubert Maria FERON
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Patent number: 9409122Abstract: A process for the capture of CO2 from gas streams, the process including contacting a CO2 containing gas stream with a compound including: a primary or non-sterically hindered secondary amine group and at least one tertiary amine or sterically hindered secondary amine group; wherein the primary or non-sterically hindered secondary amine and the nearest tertiary or sterically hindered secondary amine group are separated by a carbon chain including 3 or 4 carbon atoms and wherein the compound is a compound of Formula (I).Type: GrantFiled: April 18, 2012Date of Patent: August 9, 2016Assignee: Commonwealth Scientific and Industrial Research OrganisationInventors: Qi Yang, Susan N. James, Mathew John Ballard, Mark Bown, Paul Feron, Graeme Douglas Puxty
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Publication number: 20150367281Abstract: An aqueous composition and process for absorbing a target acidic gas from a gas stream rich in the target acidic gas, the aqueous composition comprising at least one absorbent compound comprising benzylamine and/or substituted benzylamine dissolved in the aqueous composition, wherein the aqueous composition comprises a co-solvent which reduces the vapour pressure of the absorbent compound in aqueous solution.Type: ApplicationFiled: August 28, 2015Publication date: December 24, 2015Inventors: Graeme Douglas PUXTY, Gilles Claude-Alain RICHNER, Paul Hubert MARIA
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Publication number: 20140127103Abstract: A process for the capture of CO2 from gas streams, the process including contacting a CO2 containing gas stream with a compound including: a primary or non-sterically hindered secondary amine group and at least one tertiary amine or sterically hindered secondary amine group; wherein the primary or non-sterically hindered secondary amine and the nearest tertiary or sterically hindered secondary amine group are separated by a carbon chain including 3 or 4 carbon atoms and wherein the compound is a compound of Formula (I).Type: ApplicationFiled: April 18, 2012Publication date: May 8, 2014Applicant: Commonwealth Scientific and Industrial Research OrganisationInventors: Qi Yang, Susan N. James, Mathew John Ballard, Mark Bown, Paul Feron, Graeme Douglas Puxty
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Patent number: 8486356Abstract: A process for the capture of CO2 from gas streams comprising contacting a CO2 containing gas stream with an aqueous alkanolamine solution, wherein the alkanolamine is selected from the group consisting of: 3-piperidinemethanol, Tricine, 3-quinuclidinol, 3-piperidino-1,2-propanediol and their salts.Type: GrantFiled: April 1, 2009Date of Patent: July 16, 2013Assignee: Commonwealth Scientific and Industrial Research OrganisationInventors: Moetaz Ibrahim Attalla, Graeme Douglas Puxty, Andrew Wayne Allport, Mark Bown, Qi Yang, Robert Cameron Rowland
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Publication number: 20110116997Abstract: A process for the capture of CO2 from gas streams comprising contacting a CO2 containing gas stream with an aqueous alkanolamine solution, wherein the alkanolamine is selected from the group consisting of: 3-piperidinemethanol, Tricine, 3-quinuclidinol, 3-piperidino-1,2-propanediol and their salts.Type: ApplicationFiled: April 1, 2009Publication date: May 19, 2011Applicant: Commonwealth Scientific and Industrial Research OrganisationInventors: Moetaz Ibrahim Attalla, Graeme Douglas Puxty, Andrew Wayne Allport, Mark Bown, Qi Yang, Robert Cameron Rowland