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: 20200332199
    Abstract: The disclosed invention relates to a method for restarting a synthesis gas conversion process which has stopped. The synthesis gas conversion process may be conducted in a conventional reactor or a microchannel reactor. The synthesis gas conversion process may comprise a process for converting synthesis gas to methane, methanol or dimethyl ether. The synthesis gas conversion process may be a Fischer-Tropsch process.
    Type: Application
    Filed: July 1, 2020
    Publication date: October 22, 2020
    Inventors: Roger A. Harris, Soumitra R. Deshmukh, Paul E. Kennedy, Robert Dwayne Litt, Lucas D. Schrader, Andre P. Steynberg, Steven T. Perry
  • Patent number: 10752843
    Abstract: The disclosed invention relates to a method for restarting a synthesis gas conversion process which has stopped. The synthesis gas conversion process may be conducted in a conventional reactor or a microchannel reactor. The synthesis gas conversion process may comprise a process for converting synthesis gas to methane, methanol or dimethyl ether. The synthesis gas conversion process may be a Fischer-Tropsch process.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: August 25, 2020
    Assignee: Velocys, Inc.
    Inventors: Roger A. Harris, Soumitra R. Deshmukh, Paul E. Kennedy, Robert Dwayne Litt, Lucas D. Schrader, Andre P. Steynberg, Steven T. Perry
  • Publication number: 20190345394
    Abstract: The disclosed invention relates to a method for restarting a synthesis gas conversion process which has stopped. The synthesis gas conversion process may be conducted in a conventional reactor or a microchannel reactor. The synthesis gas conversion process may comprise a process for converting synthesis gas to methane, methanol or dimethyl ether. The synthesis gas conversion process may be a Fischer-Tropsch process.
    Type: Application
    Filed: July 2, 2019
    Publication date: November 14, 2019
    Inventors: Roger A. Harris, Soumitra R. Deshmukh, Paul E. Kennedy, Robert Dwayne Litt, Lucas D. Schrader, Andre P. Steynberg, Steven T. Perry
  • Patent number: 10358604
    Abstract: The disclosed invention relates to a method for restarting a synthesis gas conversion process which has stopped. The synthesis gas conversion process may be conducted in a conventional reactor or a microchannel reactor. The synthesis gas conversion process may comprise a process for converting synthesis gas to methane, methanol or dimethyl ether. The synthesis gas conversion process may be a Fischer-Tropsch process.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: July 23, 2019
    Assignee: Velocys, Inc.
    Inventors: Roger A. Harris, Deshmukh R. Soumitra, Paul E. Kennedy, Robert Dwayne Litt, Lucas D. Schrader, Andre P. Steynberg, Steven T. Perry
  • Patent number: 9908093
    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: Grant
    Filed: April 9, 2009
    Date of Patent: March 6, 2018
    Assignee: Velocys, Inc.
    Inventors: Wayne W. Simmons, Robert Dwayne Litt, Terry Mazanec, Anna Lee Tonkovich
  • Publication number: 20160362611
    Abstract: The disclosed invention relates to a method for restarting a synthesis gas conversion process which has stopped. The synthesis gas conversion process may be conducted in a conventional reactor or a microchannel reactor. The synthesis gas conversion process may comprise a process for converting synthesis gas to methane, methanol or dimethyl ether. The synthesis gas conversion process may be a Fischer-Tropsch process.
    Type: Application
    Filed: July 13, 2016
    Publication date: December 15, 2016
    Inventors: Roger A. Harris, Deshmukh R. Soumitra, Paul E. Kennedy, Robert Dwayne Litt, Lucas D. Schrader, Andre P. Steynberg, Steven T. Perry
  • Patent number: 9452408
    Abstract: A method of starting up one or more units, the method comprising the steps of: (a) starting up a first unit including a microchannel reactor housing a Fischer-Tropsch catalyst by initially feeding a carbon monoxide source and a hydrogen source to the first unit and through the microchannel reactor; (b) processing, within the microchannel reactor, at least a portion of the carbon monoxide source and the hydrogen source; (c) monitoring at least one of internal pressure, temperature, and concentration at least one of within the microchannel reactor and downstream from the microchannel reactor; (d) at least partially containing the microchannel reactor using a wall of a containment device, the wall cooperating with the microchannel reactor to delineate at least one of a first inlet cavity and a first outlet cavity of the microchannel reactor, where at least one of the first inlet cavity and the first outlet cavity is not in fluid communication with at least one of a second inlet cavity and a second outlet cavity;
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: September 27, 2016
    Assignee: Velocys, Inc.
    Inventors: William Allen Rogers, Jr., Christopher Paul Weil, Robert Dwayne Litt, Ronald Chester Pasadyn, George Bradley Smith, Charles Robert Miele, Thomas Peter Forte, Jimmy Glen Pelham
  • Patent number: 9403142
    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: May 24, 2013
    Date of Patent: August 2, 2016
    Inventors: William Allen Rogers, Jr., 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: 20140364518
    Abstract: A method of starting up one or more units, the method comprising the steps of: (a) starting up a first unit including a microchannel reactor housing a Fischer-Tropsch catalyst by initially feeding a carbon monoxide source and a hydrogen source to the first unit and through the microchannel reactor; (b) processing, within the microchannel reactor, at least a portion of the carbon monoxide source and the hydrogen source; (c) monitoring at least one of internal pressure, temperature, and concentration at least one of within the microchannel reactor and downstream from the microchannel reactor; (d) at least partially containing the microchannel reactor using a wall of a containment device, the wall cooperating with the microchannel reactor to delineate at least one of a first inlet cavity and a first outlet cavity of the microchannel reactor, where at least one of the first inlet cavity and the first outlet cavity is not in fluid communication with at least one of a second inlet cavity and a second outlet cavity;
    Type: Application
    Filed: June 10, 2013
    Publication date: December 11, 2014
    Inventors: William Allen Rogers, JR., Christopher Paul Weil, Robert Dwayne Litt, Ronald Chester Pasadyn, George Bradley Smith, Charles Robert Miele, Thomas Peter Forte, Jimmy Glen Pelham
  • Publication number: 20140357738
    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: May 24, 2013
    Publication date: December 4, 2014
    Inventors: William Allen Rogers, JR., 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
  • Patent number: 8747656
    Abstract: This invention relates to a process for conducting a hydrocracking or a hydrotreating process in a microchannel reactor. This invention also relates to a process and apparatus for flowing a vapor and liquid into a plurality of microchannels in a microchannel processing unit.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: June 10, 2014
    Assignee: Velocys, Inc.
    Inventors: Anna Lee Tonkovich, Ravi Arora, John Brophy, Francis P. Daly, Soumitra Deshmukh, Maddalena Fanelli, Kai Tod Paul Jarosch, Timothy J. LaPlante, Richard Q. Long, Terry Mazanec, Daniel Francis Ryan, Laura J. Silva, Wayne W. Simmons, Bruce Stangeland, Yong Wang, Thomas Yuschak, Steven T. Perry, Jeffrey Dale Marco, Michael Alan Marchiando, Robert Dwayne Litt
  • Patent number: 8460411
    Abstract: A process unit comprising: (a) a first microchannel module comprising: (i) a first unit operation including microchannels, in which at least a portion of a unit operation takes place, adapted to be in fluid communication with a first inlet stream and a first outlet stream, and (ii) a second unit operation including microchannels adapted to be in thermal communication with the first unit operation, the second unit operation adapted to be in fluid communication with a second inlet stream and a second outlet stream; and (b) a pressurized vessel at least partially containing the first microchannel module adapted to be concurrently occupied by a compressive medium in thermal communication with the first microchannel module.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: June 11, 2013
    Assignee: Velocys, Inc.
    Inventors: William Allen Rogers, Jr., Christopher Paul Weil, Robert Dwayne Litt, Ronald Chester Pasadyn, George Bradley Smith, Charles Robert Miele, Thomas Peter Forte, Jimmy Glen Pelham
  • Patent number: 8450381
    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: March 22, 2012
    Date of Patent: May 28, 2013
    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: 20120184633
    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: March 22, 2012
    Publication date: July 19, 2012
    Inventors: William Allen Rogers, Paul William NEAGLE, Michael Alan MARCHlANDO, Christopher Paul Weil, Robert Dwayne Litt, Ronald Chester Pasadyn, G. Bradley Smith, Charles Robert Miele, Thomas Peter Forte, Jimmy Glen Pelham
  • Patent number: 8100996
    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: Grant
    Filed: April 9, 2009
    Date of Patent: January 24, 2012
    Assignee: Velocys, Inc.
    Inventors: Wayne W. Simmons, Robert Dwayne Litt, Anna Lee Tonkovich, Laura J. Silva, Daniel Francis Ryan, Bruce Stangeland, John Brophy, Jeffrey S. McDaniel
  • Publication number: 20110065813
    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: August 27, 2010
    Publication date: March 17, 2011
    Inventors: William Allen Rogers, Paul Willam 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: 20110004345
    Abstract: A process unit comprising: (a) a first microchannel module comprising: (i) a first unit operation including microchannels, in which at least a portion of a unit operation takes place, adapted to be in fluid communication with a first inlet stream and a first outlet stream, and (ii) a second unit operation including microchannels adapted to be in thermal communication with the first unit operation, the second unit operation adapted to be in fluid communication with a second inlet stream and a second outlet stream; and (b) a pressurized vessel at least partially containing the first microchannel module adapted to be concurrently occupied by a compressive medium in thermal communication with the first microchannel module.
    Type: Application
    Filed: June 21, 2010
    Publication date: January 6, 2011
    Inventors: William Allen Rogers, JR., Chistopher Paul Weil, Robert Dwayne Litt, Ronald Chester Pasadyn, George Bradley Smith, Charles Robert Miele, Thomas Peter Forte, Jimmy Glen Pelham
  • Patent number: 7829602
    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: Grant
    Filed: January 18, 2008
    Date of Patent: November 9, 2010
    Assignee: Velocys, Inc.
    Inventors: Robert Dwayne Litt, Wayne W. Simmons
  • Patent number: 7807113
    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: April 15, 2009
    Date of Patent: October 5, 2010
    Assignee: Velocys, Inc.
    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: 20100174124
    Abstract: This invention relates to a process for conducting a hydrocracking or a hydrotreating process in a microchannel reactor. This invention also relates to a process and apparatus for flowing a vapor and liquid into a plurality of microchannels in a microchannel processing unit.
    Type: Application
    Filed: October 9, 2009
    Publication date: July 8, 2010
    Inventors: Anna Lee Tonkovich, Ravi Arora, John Brophy, Francis P. Daly, Soumitra Deshmukh, Maddalena Fanelli, Kai Tod Paul Jarosch, Timothy J. LaPlante, Richard Q. Long, Terry Mazanec, Daniel Francis Ryan, Laura J. Silva, Wayne W. Simmons, Bruce Stangeland, Yong Wang, Thomas Yuschak, Steven T. Perry, Jeffrey Dale Marco, Michael Alan Marchiando, Robert Dwayne Litt