Patents by Inventor Douglas Cahalane Barnes

Douglas Cahalane Barnes 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).

  • System for the capture and release of acid gases
    Patent number: 10279307
    Abstract: In one aspect, the invention provides a method for the capture of at least one acid gas in a composition, the release of said gas from said composition, and the subsequent regeneration of said composition for re-use, said method comprising performing, in order, the steps of: (a) capturing the at least one acid gas by contacting said at least one gas with a capture composition comprising at least one salt of a carboxylic acid and at least one water-miscible non-aqueous solvent; (b) releasing said at least one acid gas by adding at least one protic solvent or agent to said composition; and (c) regenerating the capture composition by partial or complete removal of said added protic solvent or agent from said composition. Optionally, said capture composition comprising at least one salt of a carboxylic acid and at least one water-miscible non-aqueous solvent additionally comprises water or another protic solvent.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: May 7, 2019
    Assignee: C-Capture Ltd.
    Inventors: Christopher Mark Rayner, Douglas Cahalane Barnes, Gergely Jakab, Caspar Schoolderman
  • System for the Capture and Release of Acid Gases
    Publication number: 20170001142
    Abstract: In one aspect, the invention provides a method for the capture of at least one acid gas in a composition, the release of said gas from said composition, and the subsequent regeneration of said composition for re-use, said method comprising performing, in order, the steps of: (a) capturing the at least one acid gas by contacting said at least one gas with a capture composition comprising at least one salt of a carboxylic acid and at least one water-miscible non-aqueous solvent; (b) releasing said at least one acid gas by adding at least one protic solvent or agent to said composition; and (c) regenerating the capture composition by partial or complete removal of said added protic solvent or agent from said composition. Optionally, said capture composition comprising at least one salt of a carboxylic acid and at least one water-miscible non-aqueous solvent additionally comprises water or another protic solvent.
    Type: Application
    Filed: December 19, 2014
    Publication date: January 5, 2017
    Applicant: C-Capture Ltd
    Inventors: Christopher Mark Rayner, Douglas Cahalane Barnes, Gergely Jakab, Caspar Schoolderman