Patents by Inventor Robert Edward TREPTE

Robert Edward TREPTE 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: 10370198
    Abstract: Methods and systems for transferring feed materials between zones having substantially different pressures, where the transfer can be continuous or semi-continuous. The methods and systems include a plurality of lock hoppers to receive feed material from a low pressure zone and pressurize it with fluid to a pressure of a high pressure zone. The pressurized material can be discharged to a circulation loop, which carries the pressurized material to one or more receiving unit(s) of a pressurized system. At least some feed material remains in the receiving unit(s) and at least a portion of the fluid exits to become part of the circulation loop. After discharge, the lock hoppers can be depressurized so the next pressurization cycle can begin with additional feed material. The lock hoppers can be operated in a time-staggered manner to provide continuous or semi-continuous transfer of material.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: August 6, 2019
    Assignee: SHELL OIL COMPANY
    Inventors: Joseph Broun Powell, Robert Edward Trepte
  • Publication number: 20180022556
    Abstract: Methods and systems for transferring feed materials between zones having substantially different pressures, where the transfer can be continuous or semi-continuous. The methods and systems include a plurality of lock hoppers to receive feed material from a low pressure zone and pressurize it with fluid to a pressure of a high pressure zone. The pressurized material can be discharged to a circulation loop, which carries the pressurized material to one or more receiving unit(s) of a pressurized system. At least some feed material remains in the receiving unit(s) and at least a portion of the fluid exits to become part of the circulation loop. After discharge, the lock hoppers can be depressurized so the next pressurization cycle can begin with additional feed material. The lock hoppers can be operated in a time-staggered manner to provide continuous or semi-continuous transfer of material.
    Type: Application
    Filed: July 19, 2017
    Publication date: January 25, 2018
    Inventors: Joseph Broun POWELL, Robert Edward TREPTE
  • Patent number: 9738460
    Abstract: Methods and systems for transferring feed materials between zones having substantially different pressures, where the transfer can be continuous or semi-continuous. The methods and systems include a plurality of lock hoppers to receive feed material from a low pressure zone and pressurize it with fluid to a pressure of a high pressure zone. The pressurized material can be discharged to a circulation loop, which carries the pressurized material to one or more receiving unit(s) of a pressurized system. At least some feed material remains in the receiving unit(s) and at least a portion of the fluid exits to become part of the circulation loop. After discharge, the lock hoppers can be depressurized so the next pressurization cycle can begin with additional feed material. The lock hoppers can be operated in a time-staggered manner to provide continuous or semi-continuous transfer of material.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: August 22, 2017
    Assignee: SHELL OIL COMPANY
    Inventors: Joseph Broun Powell, Robert Edward Trepte
  • Patent number: 9492851
    Abstract: A selective removal of metal and its anion species that are detrimental to subsequent hydrothermal hydrocatalytic conversion from the biomass feed in a continuous or semi-continuous manner prior to carrying out catalytic hydrogenation/hydrogenolysis/hydrodeoxygenation of the biomass that does not reduce the effectiveness of the hydrothermal hydrocatalytic treatment while minimizing the amount of water used in the process is provided.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: November 15, 2016
    Assignee: Shell Oil Company
    Inventors: Joseph Broun Powell, Robert Edward Trepte, Juben Nemchand Chheda
  • Patent number: 9468950
    Abstract: A selective removal of metal and its anion species that are detrimental to subsequent hydrothermal hydrocatalytic conversion from the biomass feed in a continuous or semi-continuous manner prior to carrying out catalytic hydrogenation/hydrogenolysis/hydrodeoxygenation of the biomass that does not reduce the effectiveness of the hydrothermal hydrocatalytic treatment while minimizing the amount of water used in the process is provided.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: October 18, 2016
    Assignee: Shell Oil Company
    Inventors: Joseph Broun Powell, Robert Edward Trepte, Juben Nemchand Chheda
  • Patent number: 9446436
    Abstract: A selective removal of metal and its anion species that are detrimental to subsequent hydrothermal hydrocatalytic conversion from the biomass feed in a continuous or semi-continuous manner prior to carrying out catalytic hydrogenation/hydrogenolysis/hydrodeoxygenation of the biomass that does not reduce the effectiveness of the hydrothermal hydrocatalytic treatment while minimizing the amount of water used in the process is provided.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: September 20, 2016
    Assignee: Shell Oil Company
    Inventors: Joseph Broun Powell, Robert Edward Trepte, Juben Nemchand Chheda
  • Publication number: 20160096692
    Abstract: Methods and systems for transferring feed materials between zones having substantially different pressures, where the transfer can be continuous or semi-continuous. The methods and systems include a plurality of lock hoppers to receive feed material from a low pressure zone and pressurize it with fluid to a pressure of a high pressure zone. The pressurized material can be discharged to a circulation loop, which carries the pressurized material to one or more receiving unit(s) of a pressurized system. At least some feed material remains in the receiving unit(s) and at least a portion of the fluid exits to become part of the circulation loop. After discharge, the lock hoppers can be depressurized so the next pressurization cycle can begin with additional feed material. The lock hoppers can be operated in a time-staggered manner to provide continuous or semi-continuous transfer of material.
    Type: Application
    Filed: September 29, 2015
    Publication date: April 7, 2016
    Inventors: Joseph Broun POWELL, Robert Edward TREPTE
  • Publication number: 20150165489
    Abstract: A selective removal of metal and its anion species that are detrimental to subsequent hydrothermal hydrocatalytic conversion from the biomass feed in a continuous or semi-continuous manner prior to carrying out catalytic hydrogenation/hydrogenolysis/hydrodeoxygenation of the biomass that does not reduce the effectiveness of the hydrothermal hydrocatalytic treatment while minimizing the amount of water used in the process is provided.
    Type: Application
    Filed: December 18, 2014
    Publication date: June 18, 2015
    Inventors: Joseph Broun POWELL, Robert Edward TREPTE, Juben Nemchand CHHEDA
  • Publication number: 20150165490
    Abstract: A selective removal of metal and its anion species that are detrimental to subsequent hydrothermal hydrocatalytic conversion from the biomass feed in a continuous or semi-continuous manner prior to carrying out catalytic hydrogenation/hydrogenolysis/hydrodeoxygenation of the biomass that does not reduce the effectiveness of the hydrothermal hydrocatalytic treatment while minimizing the amount of water used in the process is provided.
    Type: Application
    Filed: December 18, 2014
    Publication date: June 18, 2015
    Inventors: Joseph Broun POWELL, Robert Edward TREPTE, Juben Nemchand CHHEDA
  • Publication number: 20150165488
    Abstract: A selective removal of metal and its anion species that are detrimental to subsequent hydrothermal hydrocatalytic conversion from the biomass feed in a continuous or semi-continuous manner prior to carrying out catalytic hydrogenation/hydrogenolysis/hydrodeoxygenation of the biomass that does not reduce the effectiveness of the hydrothermal hydrocatalytic treatment while minimizing the amount of water used in the process is provided.
    Type: Application
    Filed: December 18, 2014
    Publication date: June 18, 2015
    Inventors: Joseph Broun POWELL, Robert Edward TREPTE, Juben Nemchand CHHEDA