Patents by Inventor Mark K. Robertson

Mark K. Robertson 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: 20130165534
    Abstract: A method for generation of power and Fischer-Tropsch synthesis products by producing synthesis gas comprising hydrogen and carbon monoxide, producing Fischer-Tropsch synthesis products and Fischer-Tropsch tailgas from a first portion of the synthesis gas, and generating power from a second portion of the synthesis gas, from at least a portion of the Fischer-Tropsch tailgas, or from both. The method may also comprise conditioning at least a portion of the synthesis gas and/or upgrading at least a portion of the Fischer-Tropsch synthesis products. A system for carrying out the method is also provided.
    Type: Application
    Filed: October 26, 2012
    Publication date: June 27, 2013
    Applicant: Rentech, Inc.
    Inventors: Bruce E. MCCOMISH, Benjamin H. CARRYER, Bryan C. BORUM, Weibin JIANG, Mark D. IBSEN, Mark K. ROBERTSON, Eric R. ELROD, Sim WEEKS, Harold A. Wright
  • Publication number: 20130105008
    Abstract: An apparatus including at least one seal pot having at least one penetration through a surface other than the top of the seal pot, each of the at least one penetrations being configured for introduction, into the at least one seal pot, of solids from a separator upstream of the at least one seal pot; a substantially non-circular cross section; or both at least one penetration through a surface other than the top of the seal pot and a substantially non-circular cross section.
    Type: Application
    Filed: October 15, 2012
    Publication date: May 2, 2013
    Applicant: Rentech, Inc.
    Inventors: Weibin JIANG, Bruce E. McComish, Bryan C. Borum, Benjamin H. Carryer, Mark D. Ibsen, Mark K. Robertson, Eric R. Elrod, Sim Weeks, Harold A. Wright
  • Publication number: 20130109765
    Abstract: A method of producing synthesis gas by introducing a feed material to be gasified into a gasification apparatus comprising at least one fluidized component operable as a fluidized bed, wherein the gasification apparatus is configured to convert at least a portion of the feed material into a gasifier product gas comprising synthesis gas; and maintaining fluidization of the at least one fluidized component by introducing a fluidization gas thereto, wherein the fluidization gas comprises at least one component other than steam. A system for producing synthesis gas is also provided.
    Type: Application
    Filed: October 15, 2012
    Publication date: May 2, 2013
    Applicant: Rentech, Inc.
    Inventors: Weibin JIANG, Bruce E. McComish, Bryan C. Borum, Benjamin H. Carryer, Mark D. Ibsen, Mark K. Robertson, Eric R. Elrod, Sim Weeks, Harold A. Wright
  • Publication number: 20110071229
    Abstract: Processes and apparatuses for synthesizing a hydrocarbon by reacting a carbon-containing feedstock with an oxygen-containing gas stream having a greater molar ratio of oxygen than the feedstock to produce a first synthetic gas comprising carbon monoxide and hydrogen, reacting the first synthetic gas in a shift reaction zone to produce a shifted synthetic gas, optionally but preferably blending a recycled synthetic gas with the shifted synthetic gas to produce a second synthetic gas, reacting the second synthetic gas with a catalyst in a synthesis reaction zone to produce hydrocarbon(s) and a purge gas, passing the purge gas through a separation zone to produce a hydrogen-containing permeate stream having an increased hydrogen molar ratio compared to the purge gas and a methane-containing non-permeate stream having an increased methane molar ratio compared to the purge gas, and reacting the methane-containing non-permeate stream in a reformation zone to produce the recycled synthetic gas.
    Type: Application
    Filed: September 21, 2009
    Publication date: March 24, 2011
    Applicant: SYNTHESIS ENERGY SYSTEMS, INC.
    Inventors: Mark K. Robertson, Gwo-Jang Abraham Liou