Patents by Inventor Robert Dwayne Litt

Robert Dwayne Litt 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: 20100071410
    Abstract: The disclosed invention relates to a distillation process for separating two or more components having different volatilities from a liquid mixture containing the components. The process employs microchannel technology for effecting the distillation and is particularly suitable for conducting difficult separations, such as the separation of ethane from ethylene, wherein the individual components are characterized by having volatilities that are very close to one another.
    Type: Application
    Filed: November 3, 2009
    Publication date: March 25, 2010
    Inventors: Anna Lee Tonkovich, Wayne W. Simmons, Laura J. Silva, Dongming Qiu, Steven J. Perry, Thomas Yuschak, Thomas P. Hickey, Ravi Arora, Amanda Smith, Robert Dwayne Litt, Paul Neagle
  • Publication number: 20090318574
    Abstract: The present invention includes a removable microchannel unit including an inlet orifice and an outlet orifice in fluid communication with a plurality of microchannels distributed throughout the removable microchannel unit, and a pressurized vessel adapted have the removable microchannel unit mounted thereto, the pressurized vessel adapted to contain a pressurized fluid exerting a positive gauge pressure upon at least a portion of the exterior of the removable microchannel unit. The invention also includes a microchannel unit assembly comprising a microchannel unit operation carried out within a pressurized vessel, where pressurized vessel includes a pressurized fluid exerting a positive gauge pressure upon an exterior of the microchannel unit operation, and where the microchannel unit operation includes an outlet orifice in fluid communication with an interior of the pressurized vessel.
    Type: Application
    Filed: April 15, 2009
    Publication date: December 24, 2009
    Inventors: William Allen Rogers, Paul William Neagle, Michael Alan Marchiando, Christopher Paul Weil, Robert Dwayne Litt, Ronald Chester Pasadyn, G. Bradley Smith, Charles Robert Miele, Thomas Peter Forte, Jimmy Glen Pelham
  • Publication number: 20090293359
    Abstract: This invention relates to a process for converting a carbonaceous material to a desired product comprising one or more hydrocarbons or one or more alcohols, the process comprising: (A) gasifying the carbonaceous material at a temperature in excess of about 700° C. to form synthesis gas; and (B) flowing the synthesis gas in a microchannel reactor in contact with a catalyst to convert the synthesis gas to the desired product.
    Type: Application
    Filed: April 9, 2009
    Publication date: December 3, 2009
    Inventors: Wayne W. Simmons, Robert Dwayne Litt, Anna Lee Tonkovich, Laura J. Silva, Daniel Francis Ryan, Bruce Stangeland, John Brophy, Jeffrey S. McDaniel
  • Patent number: 7610775
    Abstract: The disclosed invention relates to a distillation process for separating two or more components having different volatilities from a liquid mixture containing the components. The process employs microchannel technology for effecting the distillation and is particularly suitable for conducting difficult separations, such as the separation of ethane from ethylene, wherein the individual components are characterized by having volatilities that are very close to one another.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: November 3, 2009
    Assignee: Velocys, Inc.
    Inventors: Anna Lee Tonkovich, Wayne W. Simmons, Laura J. Silva, Dongming Qiu, Steven T. Perry, Thomas Yuschak, Thomas P. Hickey, Ravi Arora, Amanda Smith, Robert Dwayne Litt, Paul Neagle
  • Publication number: 20090259076
    Abstract: This invention relates to a process for converting a carbonaceous material to a desired product comprising methane, methanol and/or dimethyl ether, the process comprising: gasifying the carbonaceous material at a temperature in excess of about 700° C. to form synthesis gas; and flowing the synthesis gas through two or more reaction zones in a microchannel reactor to convert the synthesis gas to the desired product.
    Type: Application
    Filed: April 9, 2009
    Publication date: October 15, 2009
    Inventors: Wayne W. Simmons, Robert Dwayne Litt, Terry Mazanec, Anna Lee Tonkovich
  • Patent number: 7569195
    Abstract: The present invention includes a removable microchannel unit including an inlet orifice and an outlet orifice in fluid communication with a plurality of microchannels distributed throughout the removable microchannel unit, and a pressurized vessel adapted have the removable microchannel unit mounted thereto, the pressurized vessel adapted to contain a pressurized fluid exerting a positive gauge pressure upon at least a portion of the exterior of the removable microchannel unit. The invention also includes a microchannel unit assembly comprising a microchannel unit operation carried out within a pressurized vessel, where pressurized vessel includes a pressurized fluid exerting a positive gauge pressure upon an exterior of the microchannel unit operation, and where the microchannel unit operation includes an outlet orifice in fluid communication with an interior of the pressurized vessel.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: August 4, 2009
    Assignee: Velocys, Inc.
    Inventors: William Allen Rogers, Paul William Neagle, Michael Alan Marchiando, Christopher Paul Well, Robert Dwayne Litt, Ronald Chester Pasadyn, G. Bradley Smith, Charles Robert Miele, Thomas Peter Forte, Jimmy Glen Pelham
  • Publication number: 20080210596
    Abstract: The disclosed invention relates to a process and apparatus for converting natural gas to higher molecular weight hydrocarbons. The process includes steam reforming to form synthesis gas followed by a Fischer-Tropsch reaction to convert the synthesis gas to the high molecular weight hydrocarbons. The reforming and Fischer-Tropsch reactions are conducted in microchannel reactors. The higher molecular weight hydrocarbons may be further treated to form hydrocarbon products such as middle distillate fuels, lubricating oils, and the like. The apparatus includes vessels containing SMR microchannel reactors and Fischer-Tropsch microchannel reactors. A composition comprising a mixture of olefins and paraffins is disclosed.
    Type: Application
    Filed: January 18, 2008
    Publication date: September 4, 2008
    Inventors: Robert Dwayne Litt, Wayne W. Simmons
  • Patent number: 7250074
    Abstract: The disclosed invention relates to a process for separating methane or nitrogen from a fluid mixture comprising methane and nitrogen, the process comprising: (A) flowing the fluid mixture into a microchannel separator, the microchannel separator comprising a plurality of process microchannels containing a sorption medium, the fluid mixture being maintained in the microchannel separator until at least part of the methane or nitrogen is sorbed by the sorption medium, and removing non-sorbed parts of the fluid mixture from the microchannel separator; and (B) desorbing the methane or nitrogen from the sorption medium and removing the desorbed methane or nitrogen from the microchannel separator. The process is suitable for upgrading methane from coal mines, landfills, and other sub-quality sources.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: July 31, 2007
    Assignee: Velocys, Inc.
    Inventors: Anna Lee Tonkovich, Dongming Qiu, Terence Andrew Dritz, Paul Neagle, Robert Dwayne Litt, Ravi Arora, Michael Jay Lamont, Kristina M. Pagnotto