Patents by Inventor Mark Bohn

Mark Bohn 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: 20160318035
    Abstract: A method for converting synthesis gas into liquid hydrocarbons by introducing a synthesis gas feed into a Fischer-Tropsch system that includes a catalytic reactor fluidly connected with at least two slurry loops, the reactor comprising at least as many reactor product outlets and slurry return inlets as slurry loops; each slurry loop comprising a separation system comprising at least one separator, an inlet of each separator fluidly connected to a reactor product outlet via a slurry offtake, and an outlet of each separator fluidly connected to a slurry return inlet via a slurry return; separating concentrated catalyst slurry from the reaction product via the slurry loops; removing liquid hydrocarbon product from each separator; and returning concentrated catalyst slurry to the catalytic reactor via the slurry returns and slurry return inlets. A system for converting synthesis gas into liquid hydrocarbons via the method is also disclosed.
    Type: Application
    Filed: July 12, 2016
    Publication date: November 3, 2016
    Inventors: MARK D. IBSEN, SERGIO MOHEDAS, FRANK HOGSETT, MARK BOHN, HAROLD A. WRIGHT
  • Patent number: 9416320
    Abstract: A method for converting synthesis gas into liquid hydrocarbons by introducing a synthesis gas feed into a Fischer-Tropsch system that includes a catalytic reactor fluidly connected with at least two slurry loops, the reactor comprising at least as many reactor product outlets and slurry return inlets as slurry loops; each slurry loop comprising a separation system comprising at least one separator, an inlet of each separator fluidly connected to a reactor product outlet via a slurry offtake, and an outlet of each separator fluidly connected to a slurry return inlet via a slurry return; separating concentrated catalyst slurry from the reaction product via the slurry loops; removing liquid hydrocarbon product from each separator; and returning concentrated catalyst slurry to the catalytic reactor via the slurry returns and slurry return inlets. A system for converting synthesis gas into liquid hydrocarbons via the method is also disclosed.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: August 16, 2016
    Assignee: RES USA, LLC
    Inventors: Mark Ibsen, Sergio Mohedas, Frank Hogsett, Mark Bohn, Harold A. Wright
  • Publication number: 20160002541
    Abstract: A method for converting synthesis gas into liquid hydrocarbons by introducing a synthesis gas feed into a Fischer-Tropsch system that includes a catalytic reactor fluidly connected with at least two slurry loops, the reactor comprising at least as many reactor product outlets and slurry return inlets as slurry loops; each slurry loop comprising a separation system comprising at least one separator, an inlet of each separator fluidly connected to a reactor product outlet via a slurry offtake, and an outlet of each separator fluidly connected to a slurry return inlet via a slurry return; separating concentrated catalyst slurry from the reaction product via the slurry loops; removing liquid hydrocarbon product from each separator; and returning concentrated catalyst slurry to the catalytic reactor via the slurry returns and slurry return inlets. A system for converting synthesis gas into liquid hydrocarbons via the method is also disclosed.
    Type: Application
    Filed: September 11, 2015
    Publication date: January 7, 2016
    Inventors: Mark Ibsen, Sergio Mohedas, Frank Hogsett, Mark Bohn, Harold A. Wright
  • Patent number: 9168501
    Abstract: A catalytic reaction system comprising: a catalytic reactor fluidly connected with at least two slurry loops, wherein the reactor comprises at least as many reactor product outlets and at least as many slurry return inlets as slurry loops; wherein each slurry loop comprises a separation system comprising a separation system inlet, a separation system product outlet, and a concentrated catalyst slurry outlet; a slurry offtake fluidly connecting the separation system inlet with one of the reactor product outlets; and a slurry return fluidly connecting the separation system outlet with one of the slurry return inlets. The system may comprise at least three slurry loops. The system may comprise at least four slurry loops. A method for converting synthesis gas into liquid hydrocarbons via the catalytic reaction system in also disclosed.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: October 27, 2015
    Assignee: RES USA, LLC
    Inventors: Mark Ibsen, Sergio Mohedas, Frank Hogsett, Mark Bohn, Harold A. Wright
  • Publication number: 20090069450
    Abstract: A catalytic reaction system comprising: a catalytic reactor fluidly connected with at least two slurry loops, wherein the reactor comprises at least as many reactor product outlets and at least as many slurry return inlets as slurry loops; wherein each slurry loop comprises a separation system comprising a separation system inlet, a separation system product outlet, and a concentrated catalyst slurry outlet; a slurry offtake fluidly connecting the separation system inlet with one of the reactor product outlets; and a slurry return fluidly connecting the separation system outlet with one of the slurry return inlets. The system may comprise at least three slurry loops. The system may comprise at least four slurry loops. A method for converting synthesis gas into liquid hydrocarbons via the catalytic reaction system in also disclosed.
    Type: Application
    Filed: September 8, 2008
    Publication date: March 12, 2009
    Applicant: RENTECH, INC.
    Inventors: Mark Ibsen, Sergio Mohedas, Frank Hogsett, Mark Bohn, Harold A. Wright
  • Publication number: 20080038159
    Abstract: Solvent extraction is used to remove wax and contaminants from an iron-based Fischer-Tropsch catalyst in a natural circulation continuous-flow system. The wax-free catalyst is then subjected to controlled oxidation to convert the iron to its initial oxidized state, Fe203. Reactivation of the oxide catalyst precursor is carried out by addition of synthesis gas.
    Type: Application
    Filed: October 18, 2007
    Publication date: February 14, 2008
    Applicant: RENTECH, INC.
    Inventors: Belma Demirel, Mark Bohn, Charles Benham, James Siebarth, Mark Ibsen
  • Publication number: 20050196332
    Abstract: Solvent extraction is used to remove wax and contaminants from an iron-based Fischer-Tropsch catalyst in a natural circulation continuous-flow system. The wax-free catalyst is then subjected to controlled oxidation to convert the iron to its initial oxidized state, Fe2O3. Reactivation of the oxide catalyst precursor is carried out by addition of synthesis gas.
    Type: Application
    Filed: December 7, 2004
    Publication date: September 8, 2005
    Inventors: Belma Demirel, Mark Bohn, Charles Benham, James Siebarth, Mark Ibsen
  • Publication number: 20050080147
    Abstract: An arrangement of cooling tubes within a Fischer-Tropsch slurry reactor simplifies removal and reinstallation of cooling tubes for reactor maintenance.
    Type: Application
    Filed: October 8, 2003
    Publication date: April 14, 2005
    Inventors: William Hawthorne, Mark Ibsen, Peter Pedersen, Mark Bohn