Patents by Inventor Brice C. Freeman

Brice C. Freeman 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).

  • Publication number: 20200078729
    Abstract: The present invention relates to a process for concurrently removing CO2 and SO2 from flue gas produced by a combustion process, comprising: (a) performing a combustion process by combusting a fuel and air in a combustion apparatus, thereby creating an exhaust stream comprising CO2 and SO2; (b) compressing the exhaust stream in a first compression step, thereby producing a first compressed gas stream; (c) providing a first membrane having a feed side and a permeate side, and being selectively permeable to CO2 and SO2 over nitrogen and to CO2 and SO2 over oxygen; (d) passing at least a portion of the first compressed gas stream across the feed side; (e) withdrawing from the feed side a CO2- and SO2-depleted residue stream; (f) withdrawing from the permeate side at a lower pressure than the first compressed gas stream, a first permeate stream enriched in CO2 and SO2; (g) passing the first permeate stream to a separation process that produces a stream enriched in CO2 and a stream enriched in SO2.
    Type: Application
    Filed: December 14, 2017
    Publication date: March 12, 2020
    Applicant: MEMBRANE TECHNOLOGY AND RESEARCH, INC.
    Inventors: Yu Huang, Richard W. Baker, Timothy C. Merkel, Brice C. Freeman
  • Patent number: 9140186
    Abstract: A process involving membrane-based gas separation and power generation, specifically for controlling carbon dioxide emissions from gas-fired power plants. The process includes a compression step, a combustion step, and an expansion/electricity generation step, as in traditional power plants. The process also includes a sweep-driven membrane separation step and a carbon dioxide removal or capture step. The carbon dioxide removal step is carried out on a portion of gas from the compression step.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: September 22, 2015
    Assignee: Membrane Technology and Research, Inc
    Inventors: Xiaotong Wei, Richard W Baker, Timothy C Merkel, Brice C. Freeman
  • Publication number: 20130200625
    Abstract: A process involving membrane-based gas separation and power generation, specifically for controlling carbon dioxide emissions from gas-fired power plants. The process includes a compression step, a combustion step, and an expansion/electricity generation step, as in traditional power plants. The process also includes a sweep-driven membrane separation step and a carbon dioxide removal or capture step. The carbon dioxide removal step is carried out on a portion of gas from the compression step.
    Type: Application
    Filed: March 14, 2013
    Publication date: August 8, 2013
    Applicant: Membrane Technology and Research, Inc.
    Inventors: Xiaotong Wei, Richard W Baker, Timothy C Merkel, Brice C. Freeman