Patents by Inventor David B. Rogers

David B. Rogers 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).

  • Patent number: 11235278
    Abstract: Systems and methods for sequestering emissions from marine vessels are provided. Emissions (either flue gas from exhaust or CO2 carried on the ship under pressure in gas cylinders or CO2 obtained during the ships travel via capture) are mixed in a reactor with sea water (e.g., via gas exchange through head-space equilibration or bubbling through a diffuser) until a pH of 5.5 to 6.5 is obtained. Systems and reactors pump seawater through a reactor vessel containing a reaction medium (e.g., carbonates and silicates). The reactor produces an effluent that can be expelled into the ocean. The effluent produced from the result of a reaction according to embodiments has approximately twice the concentration of Dissolved Inorganic Carbon (DIC) and Alkalinity (Alk) as the incoming sea water and has an increased Ca+2 concentration above sea water.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: February 1, 2022
    Assignees: California Institute of Technology, University of Southern California
    Inventors: Jess Firey Adkins, William Max Berelson, David B. Rogers
  • Publication number: 20200368677
    Abstract: Systems and methods for sequestering emissions from marine vessels are provided. Emissions (either flue gas from exhaust or CO2 carried on the ship under pressure in gas cylinders or CO2 obtained during the ships travel via capture is mixed in a reactor with sea water (e.g., via gas exchange through head-space equilibration or bubbling through a diffuser) until a pH of 5.5 to 6.5 is obtained. Systems and reactors pump seawater through a reactor vessel containing a reaction medium (e.g., carbonates and silicates). The reactor produces an effluent that can be expelled into the ocean. The effluent produced from the result of a reaction according to embodiments has approximately twice the concentration of Dissolved Inorganic Carbon (DIC) and Alkalinity (Alk) as the incoming sea water and has an increased Ca+2 concentration above sea water.
    Type: Application
    Filed: May 26, 2020
    Publication date: November 26, 2020
    Applicants: California Institute of Technology, University of Southern California
    Inventors: Jess Firey Adkins, William Max Berelson, David B. Rogers
  • Patent number: 10532343
    Abstract: The present disclosure relates to nickel/aluminum-containing catalyst materials useful, for example, as reforming catalysts, processes for making them, and processes for using them in molten carbonate fuel cells. In one aspect, the disclosure provides a catalyst material including an alumina carrier in an amount in the range of about 5 wt % to about 75 wt %; and a mixed metal oxide in an amount in the range of about 25 wt % to about 95 wt %, the mixed metal oxide including at least about 90 wt % of oxides of nickel and aluminum, the mixed metal oxide having an atomic ratio of nickel to aluminum in the range of about 60:40 to about 90:10, the mixed metal oxide being substantially free of zirconium, in the form of a composite of the alumina carrier and the mixed metal oxide.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: January 14, 2020
    Assignee: CLARIANT CORPORATION
    Inventors: Chandra Ratnasamy, Jon P. Wagner, Yeping Cai, David B. Rogers, Jason E. Spencer, Jeffery L. Braden
  • Publication number: 20170333875
    Abstract: The present disclosure relates to nickel/aluminum-containing catalyst materials useful, for example, as reforming catalysts, processes for making them, and processes for using them in molten carbonate fuel cells. In one aspect, the disclosure provides a catalyst material including an alumina carrier in an amount in the range of about 5 wt % to about 75 wt %; and a mixed metal oxide in an amount in the range of about 25 wt % to about 95 wt %, the mixed metal oxide including at least about 90 wt % of oxides of nickel and aluminum, the mixed metal oxide having an atomic ratio of nickel to aluminum in the range of about 60:40 to about 90:10, the mixed metal oxide being substantially free of zirconium, in the form of a composite of the alumina carrier and the mixed metal oxide.
    Type: Application
    Filed: May 15, 2017
    Publication date: November 23, 2017
    Inventors: Chandra RATNASAMY, Jon P. WAGNER, Yeping CAI, David B. ROGERS, Jason E. SPENCER, Jeffery L. BRADEN
  • Patent number: 7871961
    Abstract: A high efficiency catalyst for use in a catalytic partial oxidation process for the production of hydrogen or syngas gas from hydrocarbons is disclosed. The catalyst comprises rhenium in combination with a second metal selected from the group of rhenium to second metal of 25:1 to 1:1. the process comprises reacting a feed containing hydrocarbons with an oxygen source at a C/O ratio of about 0.9 to 1.1 in the presence of the catalyst, and wherein the gas hourly space velocity of the feed over the catalyst ranges from about 1,000 hr?1 to about 2,000,000 hr ?1. In the process, the catalyst is maintained as a temperature of from about 500° C. to about 1,500° C. as the feed makes contact with the catalyst.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: January 18, 2011
    Assignee: Sud-Chemie Inc.
    Inventors: Shizhong Zhao, X.D. Hu, David Patrick Tolle, David B. Rogers
  • Publication number: 20080056985
    Abstract: A high efficiency catalyst for use in a catalytic partial oxidation process for the production of hydrogen or syngas gas from hydrocarbons is disclosed. The catalyst comprises rhenium in combination with a second metal selected from the group consisting of platinum, iridium, ruthenium, rhodium, and palladium at an atomic ratio of rhenium to second metal of from 25:1 to 1:1. The process comprises reacting a feed containing hydrocarbons with an oxygen source at a C/O ratio of about 0.9 to about 1.1 in the presence of the catalyst, and wherein the gas hourly space velocity of the feed over the catalyst ranges from about 1,000 hr?1 to about 2,000,000 hr?1. In the process, the catalyst is maintained at a temperature of from about 500° C. to about 1,500° C. as the feed makes contact with the catalyst.
    Type: Application
    Filed: July 18, 2006
    Publication date: March 6, 2008
    Inventors: Shizhong Zhao, X.D. Hu, David Patrick Tolle, David B. Rogers
  • Patent number: 4667727
    Abstract: A squeeze formed aluminium alloy article, such as a piston, is formed with a re-entrant cavity (14) with reinforced edges by locating an isostatically compacted salt core (10) and annular alumina-silicate fibre pad (11) in the mould cavity of the squeeze forming press prior to introduction of the molten metal therein. The core (10) is subsequently dissolved from the squeeze formed article to provide a reinforced corresponding shape to the article which does not require subsequent machining.
    Type: Grant
    Filed: November 18, 1985
    Date of Patent: May 26, 1987
    Assignee: GKN Technology Limited
    Inventors: John Barlow, David B. Rogers