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).

  • Process and system for capture of carbon dioxide
    Patent number: 12023624
    Abstract: 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: Grant
    Filed: February 21, 2023
    Date of Patent: July 2, 2024
    Assignee: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: Graeme Douglas Puxty, William Conway, Qi Yang, Paul Hubert Maria Feron
  • PROCESS AND SYSTEM FOR CAPTURE OF CARBON DIOXIDE
    Publication number: 20230256381
    Abstract: 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: Application
    Filed: February 21, 2023
    Publication date: August 17, 2023
    Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: Graeme Douglas PUXTY, William CONWAY, Qi YANG, Paul Hubert Maria FERON
  • Process and system for capture of carbon dioxide
    Patent number: 11602714
    Abstract: 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: Grant
    Filed: August 3, 2021
    Date of Patent: March 14, 2023
    Assignee: COMMONWEATH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: Graeme Douglas Puxty, William Conway, Qi Yang, Paul Hubert Maria Feron
  • PROCESS AND SYSTEM FOR CAPTURE OF CARBON DIOXIDE
    Publication number: 20210362090
    Abstract: 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: Application
    Filed: August 3, 2021
    Publication date: November 25, 2021
    Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: Graeme Douglas PUXTY, William CONWAY, Qi YANG, Paul Hubert Maria FERON
  • Process and system for capture of carbon dioxide
    Patent number: 11123684
    Abstract: 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: Grant
    Filed: May 22, 2018
    Date of Patent: September 21, 2021
    Assignee: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: Graeme Douglas Puxty, William Conway, Qi Yang, Paul Hubert Maria Feron
  • PROCESS AND SYSTEM FOR CAPTURE OF CARBON DIOXIDE
    Publication number: 20190291044
    Abstract: 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: Application
    Filed: May 22, 2018
    Publication date: September 26, 2019
    Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: Graeme Douglas PUXTY, William CONWAY, Qi YANG, Paul Hubert Maria FERON
  • Gas capture process
    Patent number: 9409122
    Abstract: 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: Grant
    Filed: April 18, 2012
    Date of Patent: August 9, 2016
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Qi Yang, Susan N. James, Mathew John Ballard, Mark Bown, Paul Feron, Graeme Douglas Puxty
  • ABSORBENT SOLUTION FOR ABSORPTION OF ACID GAS AND PROCESS FOR ABSORPTION OF ACID GAS
    Publication number: 20150367281
    Abstract: 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: Application
    Filed: August 28, 2015
    Publication date: December 24, 2015
    Inventors: Graeme Douglas PUXTY, Gilles Claude-Alain RICHNER, Paul Hubert MARIA
  • GAS CAPTURE PROCESS
    Publication number: 20140127103
    Abstract: 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: Application
    Filed: April 18, 2012
    Publication date: May 8, 2014
    Applicant: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Qi Yang, Susan N. James, Mathew John Ballard, Mark Bown, Paul Feron, Graeme Douglas Puxty
  • Alkanolamines for COremoval from gas streams
    Patent number: 8486356
    Abstract: 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: Grant
    Filed: April 1, 2009
    Date of Patent: July 16, 2013
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Moetaz Ibrahim Attalla, Graeme Douglas Puxty, Andrew Wayne Allport, Mark Bown, Qi Yang, Robert Cameron Rowland
  • IMROVED ALKANOLAMINES FOR CO2 REMOVAL FROM GAS STREAMS
    Publication number: 20110116997
    Abstract: 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: Application
    Filed: April 1, 2009
    Publication date: May 19, 2011
    Applicant: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Moetaz Ibrahim Attalla, Graeme Douglas Puxty, Andrew Wayne Allport, Mark Bown, Qi Yang, Robert Cameron Rowland