Patents by Inventor Daniel P. Leta

Daniel P. Leta 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: 11850569
    Abstract: Compositions and methods of preparing the compositions are disclosed for sorbents and other surfaces that can adsorb and desorb carbon dioxide. A sorbent or surface can include a metal compound such as an alkali or alkaline earth compound and a support. The sorbent can be prepared by several methods, including an incipient wetness technique. The sorbents have a CO2 adsorption and desorption profile. A sorbent having high levels of a metal compound and adsorbed CO2 is disclosed.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: December 26, 2023
    Assignees: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY, TDA RESEARCH, INC.
    Inventors: Jeannine Elizabeth Elliott, Robert James Copeland, Margarita Dubovik, Daniel P. Leta, Patrick P. McCall, Chuansheng Bai, Bruce A. DeRites
  • Patent number: 11433346
    Abstract: Disclosed are processes and systems for the removal of water from a feed stream utilizing swing adsorption processes including an adsorbent bed comprising an adsorbent material which is a cationic zeolite RHO. The cationic zeolite RHO comprises at least one, preferably two, metal cations selected from Group 1 and 2 elements (new Group 1-18 IUPAC numbering). The swing adsorption processes and systems utilizing the cationic zeolite RHO have an adsorption selectivity for water and are useful in selective dehydration of commercial feed streams. The cationic zeolite RHO additionally has an exceptionally high water adsorption stability for use in feed streams with wet acid gas environments operating under cyclic swing adsorption conditions.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: September 6, 2022
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Yu Wang, Barbara Carstensen, Daniel P. Leta, Peter I. Ravikovitch, Harry W. Deckman, Scott J. Weigel
  • Patent number: 11318413
    Abstract: The present disclosure describes the use of a specific adsorbent material in a rapid cycle swing adsorption to perform dehydration of a gaseous feed stream. The adsorbent material includes a zeolite 3A that is utilized in the dehydration process to enhance recovery of hydrocarbons.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: May 3, 2022
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Yu Wang, Harry W. Deckman, Ashley M. Wittrig, Karl G. Strohmaier, Daniel P. Leta, Peter I. Ravikovitch
  • Publication number: 20210113952
    Abstract: Disclosed are processes and systems for the removal of water from a feed stream utilizing swing adsorption processes including an adsorbent bed comprising an adsorbent material which is a cationic zeolite RHO. The cationic zeolite RHO comprises at least one, preferably two, metal cations selected from Group 1 and 2 elements (new Group 1-18 IUPAC numbering). The swing adsorption processes and systems utilizing the cationic zeolite RHO have an adsorption selectivity for water and are useful in selective dehydration of commercial feed streams. The cationic zeolite RHO additionally has an exceptionally high water adsorption stability for use in feed streams with wet acid gas environments operating under cyclic swing adsorption conditions.
    Type: Application
    Filed: October 14, 2020
    Publication date: April 22, 2021
    Inventors: Yu Wang, Barbara Carstensen, Daniel P. Leta, Peter I. Ravikovitch, Harry W. Deckman, Scott J. Weigel
  • Publication number: 20210016220
    Abstract: A system and method for separating and/or purification of CO2 gas from a CO2 feed stream is described. The system and method include a plurality of fixed sorbent beds, adsorption zones and desorption zones, where the sorbent beds are connected via valve and lines to create a simulated moving bed system, where the sorbent beds move from one adsorption position to another adsorption position, and then into one regeneration position to another regeneration position, and optionally back to an adsorption position. The system and method operate by concentration swing adsorption/desorption and by adsorptive/desorptive displacement.
    Type: Application
    Filed: September 28, 2020
    Publication date: January 21, 2021
    Inventors: Jeannine Elizabeth Elliott, Robert James Copeland, Jeff Lind, Daniel P. Leta, Patrick P. McCall
  • Patent number: 10821393
    Abstract: A system and method for separating and/or purification of CO2 gas from a CO2 feed stream is described. The system and method include a plurality of fixed sorbent beds, adsorption zones and desorption zones, where the sorbent beds are connected via valve and lines to create a simulated moving bed system, where the sorbent beds move from one adsorption position to another adsorption position, and then into one regeneration position to another regeneration position, and optionally back to an adsorption position. The system and method operate by concentration swing adsorption/desorption and by adsorptive/desorptive displacement.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: November 3, 2020
    Assignees: Exxonmobil Research and Engineering Company, TDA Research, Inc.
    Inventors: Jeannine Elizabeth Elliott, Robert James Copeland, Jeff Lind, Daniel P. Leta, Patrick P. McCall
  • Publication number: 20200290013
    Abstract: Compositions and methods of preparing the compositions are disclosed for sorbents and other surfaces that can adsorb and desorb carbon dioxide. A sorbent or surface can include a metal compound such as an alkali or alkaline earth compound and a support. The sorbent can be prepared by several methods, including an incipient wetness technique. The sorbents have a CO2 adsorption and desorption profile. A sorbent having high levels of a metal compound and adsorbed CO2 is disclosed.
    Type: Application
    Filed: June 1, 2020
    Publication date: September 17, 2020
    Inventors: Jeannine Elizabeth Elliott, Robert James Copeland, Margarita Dubovik, Daniel P. Leta, Patrick P. McCall, Chuansheng Bai, Bruce A. DeRites
  • Publication number: 20200179870
    Abstract: The present disclosure describes the use of a specific adsorbent material in a rapid cycle swing adsorption to perform dehydration of a gaseous feed stream. The adsorbent material includes a zeolite 3A that is utilized in the dehydration process to enhance recovery of hydrocarbons.
    Type: Application
    Filed: February 17, 2020
    Publication date: June 11, 2020
    Inventors: Yu Wang, Harry W. Deckman, Ashley M. Wittrig, Karl G. Strohmaier, Daniel P. Leta, Peter I. Ravikovitch
  • Patent number: 10603626
    Abstract: The present disclosure describes the use of a specific adsorbent material in a rapid cycle swing adsorption to perform dehydration of a gaseous feed stream. The adsorbent material includes a zeolite 3A that is utilized in the dehydration process to enhance recovery of hydrocarbons.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: March 31, 2020
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Yu Wang, Harry W. Deckman, Ashley M. Wittrig, Karl G. Strohmaier, Daniel P. Leta, Peter I. Ravikovitch
  • Patent number: 10512893
    Abstract: Structured adsorbent beds comprising a high cell density substrate, such as greater than about 1040 cpsi, and a coating comprising adsorbent particles, such as DDR and a binder, such as SiO2 are provided herein. Methods of preparing the structured adsorbent bed and gas separation processes using the structured adsorbent bed are also provided herein.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: December 24, 2019
    Assignee: ExxonMobil Upstream Research Company
    Inventors: John F. Brody, Daniel P. Leta, Tracy Alan Fowler, Stephanie A. Freeman, Joshua I. Cutler
  • Patent number: 10464009
    Abstract: The embodiments of the disclosure relate generally to adsorbent beds, adsorbent contactors, and methods of using same. The disclosure includes polymer filaments that include an adsorbent particle, such as a zeolite, metal oxide, metal organic framework. A plurality of fibers composed of the polymer filaments can be formed into an adsorbent bed for use in pressure swing and/or temperature swing adsorption processes. The plurality of fibers can be packed into a bed randomly, spirally wound, or woven into a fabric that can be formed into a contacting structure. The adsorbent particle can be contained within the polymer filament and can interact with a medium having a component for adsorption by being in fluid communication with the medium via tortuous pathways within the polymer.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: November 5, 2019
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Tracie L. Owens, Daniel P. Leta
  • Patent number: 10207249
    Abstract: Organosilica materials, which are a polymer of at least one independent monomer of Formula [Z1OZ2OSiCH2]3 (I), wherein Z1 and Z2 each independently represent a hydrogen atom, a C1-C4 alkyl group or a bond to a silicon atom of another monomer and at least one other monomer is provided herein. Methods of preparing and processes of using the organosilica materials, e.g., for gas separation, color removal etc., are also provided herein.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: February 19, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Quanchang Li, Preeti Kamakoti, David Charles Calabro, Mary Kathryn Lee, Stephen M. Cundy, Kanmi Mao, Matu J. Shah, Dennis George Peiffer, Daniel P. Leta
  • Publication number: 20180056235
    Abstract: The present disclosure describes the use of a specific adsorbent material in a rapid cycle swing adsorption to perform dehydration of a gaseous feed stream. The adsorbent material includes a zeolite 3A that is utilized in the dehydration process to enhance recovery of hydrocarbons.
    Type: Application
    Filed: August 4, 2017
    Publication date: March 1, 2018
    Inventors: Yu Wang, Harry W. Deckman, Ashley M. Wittrig, Karl G. Strohmaier, Daniel P. Leta, Peter I. Ravikovitch
  • Publication number: 20180001301
    Abstract: Structured adsorbent beds comprising a high cell density substrate, such as greater than about 1040 cpsi, and a coating comprising adsorbent particles, such as DDR and a binder, such as SiO2 are provided herein. Methods of preparing the structured adsorbent bed and gas separation processes using the structured adsorbent bed are also provided herein.
    Type: Application
    Filed: July 27, 2017
    Publication date: January 4, 2018
    Inventors: John F. Brody, Daniel P. Leta, Tracy Alan Fowler, Stephanie A. Freeman, Joshua I. Cutler
  • Publication number: 20170282114
    Abstract: The embodiments of the disclosure relate generally to adsorbent beds, adsorbent contactors, and methods of using same. The disclosure includes polymer filaments that include an adsorbent particle, such as a zeolite, metal oxide, metal organic framework. A plurality of fibers composed of the polymer filaments can be formed into an adsorbent bed for use in pressure swing and/or temperature swing adsorption processes. The plurality of fibers can be packed into a bed randomly, spirally wound, or woven into a fabric that can be formed into a contacting structure. The adsorbent particle can be contained within the polymer filament and can interact with a medium having a component for adsorption by being in fluid communication with the medium via tortuous pathways within the polymer.
    Type: Application
    Filed: June 16, 2017
    Publication date: October 5, 2017
    Inventors: Tracie L. Owens, Daniel P. Leta
  • Patent number: 9744521
    Abstract: Structured adsorbent beds comprising a high cell density substrate, such as greater than about 1040 cpsi, and a coating comprising adsorbent particles, such as DDR and a binder, such as SiO2 are provided herein. Methods of preparing the structured adsorbent bed and gas separation processes using the structured adsorbent bed are also provided herein.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: August 29, 2017
    Assignee: ExxonMobil Upstream Research Company
    Inventors: John F. Brody, Daniel P. Leta, Tracy Alan Fowler, Stephanie A. Freeman, Joshua I. Cutler
  • Patent number: 9737846
    Abstract: Adsorbent materials comprising a core, for example CHA, and at least one coating, for example DDR, are provided herein. Adsorbent contactors and gas separation processes using the adsorbent materials are also provided herein.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: August 22, 2017
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Barbara Carstensen, Daniel P. Leta, Preeti Kamakoti, Peter Ravikovitch, Joshua Varon, Tilman Wolfram Beutel, Karl Gottlieb Strohmaier, Ivy Dawn Johnson, Harry W. Deckman, Frank Cheng-Yu Wang, Charanjit Singh Paur
  • Patent number: 9713787
    Abstract: The embodiments of the disclosure relate generally to adsorbent beds, adsorbent contactors, and methods of using same. The disclosure includes polymer filaments that include an adsorbent particle, such as a zeolite, metal oxide, metal organic framework. A plurality of fibers composed of the polymer filaments can be formed into an adsorbent bed for use in pressure swing and/or temperature swing adsorption processes. The plurality of fibers can be packed into a bed randomly, spirally wound, or woven into a fabric that can be formed into a contacting structure. The adsorbent particle can be contained within the polymer filament and can interact with a medium having a component for adsorption by being in fluid communication with the medium via tortuous pathways within the polymer.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: July 25, 2017
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Tracie L. Owens, Daniel P. Leta
  • Publication number: 20160361680
    Abstract: A system and method for separating and/or purification of CO2 gas from a CO2 feed stream is described. The system and method include a plurality of fixed sorbent beds, adsorption zones and desorption zones, where the sorbent beds are connected via valve and lines to create a simulated moving bed system, where the sorbent beds move from one adsorption position to another adsorption position, and then into one regeneration position to another regeneration position, and optionally back to an adsorption position. The system and method operate by concentration swing adsorption/desorption and by adsorptive/desorptive displacement.
    Type: Application
    Filed: August 11, 2016
    Publication date: December 15, 2016
    Inventors: Jeannine Elizabeth Elliott, Robert James Copeland, Jeff Lind, Daniel P. Leta, Patrick P. McCall
  • Patent number: 9504955
    Abstract: A process for separating a carbon dioxide from a gas stream is disclosed. The process can include passing the gas stream over a sorbent that adsorbs the carbon dioxide by concentration swing adsorption and adsorptive displacement. The sorbent can be regenerated and the carbon dioxide recaptured by desorbing the carbon dioxide from the sorbent using concentration swing adsorption and desorptive displacement. A carbon dioxide separation system is also disclosed. Neither the system nor the process rely on temperature swing or pressure swing adsorption.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: November 29, 2016
    Assignees: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, TDA RESEARCH, INC.
    Inventors: Jeannine Elizabeth Elliott, Robert James Copeland, Daniel P. Leta, Patrick P. McCall, Chuansheng Bai, Bruce A. DeRites