Patents by Inventor David C. Calabro

David C. Calabro 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: 20250121354
    Abstract: Compositions corresponding to amine-functionalized organosilica materials are provided, along with methods of making such materials and methods of using such materials. The amine-functionalized organosilica materials are formed in part by using a single step synthesis process based on condensation of an alkoxy-substituted cyclic organosilane precursor in the presence of an aminosilane precursor so that an amine-functionalized polymer is formed. An acyclic alkoxy silane compound can also be used during the condensation to provide a secondary monomer that facilitates formation of the gel. The amine-functionalized organosilica materials are also formed in part by using at least one of a supercritical drying process and a freeze drying process. By using a supercritical drying process and/or a freeze drying process, an amine-functionalized organosilica material can be formed that has improved properties for sorption of CO2.
    Type: Application
    Filed: October 15, 2024
    Publication date: April 17, 2025
    Inventors: David C. CALABRO, Shabab A. ABEDI, Quanchang LI, Joseph M. FALKOWSKI
  • Publication number: 20250121357
    Abstract: Methods are provided for making amine-functionalized organosilica materials that include additional amine functionalities that are grafted to the composition after the initial synthesis. Methods of using such materials are also provided. It has been discovered that additional aminosilyl groups can be grafted onto amine-functionalized organosilica materials under conditions that substantially preserve the original CO2 sorption capacity of the underlying organosilica material prior to grafting. This allows the additional amines in the grafted aminosilyl groups to increase the net capacity of the grafted material, as opposed to primarily replacing the original CO2 sorption capacity with the sorption capacity of the grafted amine functionalities.
    Type: Application
    Filed: October 15, 2024
    Publication date: April 17, 2025
    Inventors: David C. CALABRO, Shabab A. ABEDI, Hilda B. VROMAN, Peter I. RAVIKOVITCH, Giovanni M. MURARO, Scott J. WEIGEL
  • Publication number: 20240307849
    Abstract: Functionalized polymer compositions are provided that can have beneficial properties for CO2 sorption and/or desorption. The functionalized polymer compositions can be based on polymers of intrinsic microporosity. The polymers of intrinsic microporosity can then be at least partially reacted to form polymers functionalized with guanidine and/or amidine derivatives where at least a portion of the polymeric repeat units have a substituent that includes a guanidine derivative and/or amidine derivative as a functional group. Optionally, the functionalized polymers of intrinsic microporosity can be further reacted in order to further modify the guanidine derivative and/or amidine derivative that is substituted at one or more locations of a polymeric repeat unit.
    Type: Application
    Filed: March 16, 2023
    Publication date: September 19, 2024
    Inventors: Lisa Saunders Baugh, Simon C. Weston, David C. Calabro, M.G. Finn, Saona Seth, Srinivas Tekkam, Ryan P. Lively, Fengyi Zhang, Ankana Roy, Hannah E. Holmes
  • Publication number: 20240017204
    Abstract: Systems and methods are provided for operating a combined cycle power plant while enhancing the CO2 content of the flue gas generated by the power plant. The CO2 content is enhanced by using a combination of exhaust gas recycle and oxygen-enriched combustion. The oxygen-containing flow for performing the oxygen-enriched combustion can be generated by an integrated pressure swing adsorption process that allows for production of a commercial grade nitrogen stream (95 vol % or more of N2) while also providing an oxygen-containing stream with an oxygen content between 25 vol % and 48 vol % with high 02 recovery.
    Type: Application
    Filed: July 10, 2023
    Publication date: January 18, 2024
    Inventors: David C. Calabro, Edward W. Corcoran, JR., Neel Rangnekar, Yu Wang
  • Patent number: 11364479
    Abstract: Disclosed are zeolitic imidazolate framework (ZIF) compositions in which at least a portion of the ligands in its shell have been exchanged with other ligands, and methods of making such shell-ligand-exchanged ZIFs. Also disclosed is the use of such shell-ligand-exchanged ZIFs in hydrocarbon separation processes.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: June 21, 2022
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Joseph M. Falkowski, Mobae Afeworki, David C. Calabro, Yi Du, Himanshu Gupta, Simon C. Weston
  • Patent number: 11325111
    Abstract: Catalysts including at least one microporous material (e.g., zeolite), an organosilica material binder, and at least one catalyst metal are provided herein. Methods of making the catalysts, preferably without surfactants and processes of using the catalysts, e.g., for aromatic hydrogenation, are also provided herein.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: May 10, 2022
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Paul Podsiadlo, Quanchang Li, David C. Calabro, Kiara M. Benitez, Machteld M. W. Mertens, Scott J. Weigel, Doron Levin, Randall D. Partridge
  • Patent number: 11111352
    Abstract: Methods of preparing organosilica materials using a starting material mixture comprising at least one compound of Formula [(RO)2SiCH2]3 (Ia) and at least one compound of Formula [R?ROSiCH2]3 (Ib), wherein each R? independently represents an RO—, an R group, or an (RO)3Si—CH2— group, at least one R? being (RO)3Si—CH2—; and R represents a C1-C4 alkyl group, in the absence of a structure directing agent and/or porogen are provided herein. Processes of using the organosilica materials, e.g., for gas separation, etc., are also provided herein.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: September 7, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Huaxing Zhou, Quanchang Li, David C. Calabro
  • Patent number: 10814288
    Abstract: Gas separation modules and methods for use including an integrated adsorbent and membrane. In certain refining applications, it is paramount to obtain high purity product gases. Adsorbent beds are effective at removing certain contaminants, such as CO2, from gas streams containing product and contaminant constituents to form a product-rich stream. The integrated membrane permits a further separation of products from any unadsorbed contaminant to produce a high purity product, such as hydrogen, stream. The gas separation modules described herein include stacked, radial, and spiral arrangements. Each modules includes a configuration of feed and cross-flow channels for the collection of contaminant gases and/or high purity product gases.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: October 27, 2020
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Narasimhan Sundaram, David C. Calabro, Hans Thomann, Randall D. Partridge
  • Patent number: 10696558
    Abstract: A novel zeolitic imidazolate framework material comprises a partially saturated benzimidazole or a partially saturated substituted benzimidazole as a linking ligand, optionally together with unsaturated benzimidazole or an unsaturated substituted benzimidazole as a further linking ligand.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: June 30, 2020
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Joseph M. Falkowski, David C. Calabro, Yi Du, Mobae Afeworki, Simon C. Weston
  • Patent number: 10647798
    Abstract: Disclosed herein are spray-dried catalyst compositions including one or more olefin polymerization catalysts and at least one support of an organosilica material, optionally, with at least one activator. The spray-dried catalyst compositions may be used in polymerization processes for the production of polyolefin polymers.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: May 12, 2020
    Assignee: ExxonMobil Chemical Patents, Inc.
    Inventors: Matthew W. Holtcamp, Quanchang Li, David C. Calabro, Gerardo J. Majano Sanchez, Machteld M. Mertens, Charles J. Harlan
  • Patent number: 10449479
    Abstract: An adsorption module and associated processes for conducting advanced separations processes such as sorption enhanced water-gas shift (SEWGS). The adsorption module contains at least one angled baffle to create at least two tapered adsorbent beds within the adsorption module. The taper is such that the adsorbent beds' cross-sections within the adsorption module decrease in the direction of feed flow, thereby taking advantage of increased product purity and process efficiency provided by tapered adsorption beds.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: October 22, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Narasimhan Sundaram, Hans Thomann, David C. Calabro, Frank Mittricker
  • Patent number: 10435514
    Abstract: Organosilica materials made from monomers including at least a source of silica that is reactive to polymerize, optionally in combination with at least one additional cyclic monomer. Methods for making such organosilica materials are also described herein.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: October 8, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: David C. Calabro, Ivy D. Johnson, Quanchang Li, Paul Podsiadlo, Simon C. Weston, Mobae Afeworki
  • Publication number: 20190282997
    Abstract: Disclosed are zeolitic imidazolate framework (ZIF) compositions in which at least a portion of the ligands in its shell have been exchanged with other ligands, and methods of making such shell-ligand-exchanged ZIFs. Also disclosed is the use of such shell-ligand-exchanged ZIFs in hydrocarbon separation processes.
    Type: Application
    Filed: February 27, 2019
    Publication date: September 19, 2019
    Inventors: Joseph M. Falkowski, Mobae Afeworki, David C. Calabro, Yi Du, Himanshu Gupta, Simon C. Weston
  • Patent number: 10350538
    Abstract: In various aspects, methods are provided for hydrogen production while reducing and/or mitigating emissions during various refinery processes that produce syngas, such as power generation. Syngas can be effectively separated to generate high purity carbon dioxide and hydrogen streams, while reducing and/or minimizing the energy required for the separation, and without needing to reduce the temperature of the flue gas. In various aspects, the operating conditions, such as high temperature, mixed metal oxide adsorbents, and cycle variations, for a pressure swing adsorption reactor can be selected to minimize energy penalties while still effectively capturing the CO2 present in syngas.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: July 16, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Narasimhan Sundaram, Hans Thomann, David C. Calabro, Frank Mittricker
  • Publication number: 20190194414
    Abstract: Methods of preparing organosilica materials using a starting material mixture comprising at least one compound of Formula [(RO)2SiCH2]3 (Ia) and at least one compound of Formula [R?ROSiCH2]3 (Ib), wherein each R? independently represents an RO—, an R group, or an (RO)3Si—CH2— group, at least one R? being (RO)3Si—CH2—; and R represents a C1-C4 alkyl group, in the absence of a structure directing agent and/or porogen are provided herein. Processes of using the organosilica materials, e.g., for gas separation, etc., are also provided herein.
    Type: Application
    Filed: November 14, 2018
    Publication date: June 27, 2019
    Inventors: Huaxing Zhou, Quanchang Li, David C. Calabro
  • Patent number: 10294312
    Abstract: A catalyst system comprising a combination of: 1) an activator; 2) one or more metallocene catalyst compounds; 3) a support comprising an organosilica material, which may be a mesoporous organosilica material. The organosilica material may be a polymer of at least one monomer of Formula [Z1OZ2SiCH2]3 (I), where Z1 represents a hydrogen atom, a C1-C4 alkyl group, or a bond to a silicon atom of another monomer and Z2 represents a hydroxyl group, a C1-C4 alkoxy group, a C1-C6 alkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: May 21, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Matthew W. Holtcamp, Gregory S. Day, David F. Sanders, David C. Calabro, Quanchang Li, Machteld M. W. Mertens
  • Publication number: 20190105647
    Abstract: Catalysts including at least one microporous material (e.g., zeolite), an organosilica material binder, and at least one catalyst metal are provided herein. Methods of making the catalysts, preferably without surfactants and processes of using the catalysts, e.g., for aromatic hydrogenation, are also provided herein.
    Type: Application
    Filed: December 7, 2018
    Publication date: April 11, 2019
    Inventors: Paul Podsiadlo, Quanchang Li, David C. Calabro, Kiara M. Benitez, Machteld M.W. Mertens, Scott J. Weigel, Doron Levin, Randall D. Partridge
  • Patent number: 10195600
    Abstract: Catalysts including at least one microporous material (e.g., zeolite), an organosilica material binder, and at least one catalyst metal are provided herein. Methods of making the catalysts, preferably without surfactants and processes of using the catalysts, e.g., for aromatic hydrogenation, are also provided herein.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: February 5, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Paul Podsiadlo, Quanchang Li, David C. Calabro, Kiara M. Benitez, Machteld M. W. Mertens, Scott J. Weigel, Doron Levin, Randall D. Partridge
  • Patent number: 10179839
    Abstract: Provided herein are compositions and methods for use of an organosilica material comprising a copolymer of at least one monomer of Formula [R1R2SiCH2]3 (I), wherein, R1 represents a C1-C4 alkoxy group; and R2 is a C1-C4 alkoxy group or a C1-C4 alkyl group; and at least one other monomer of Formula [(Z1O)xZ23-xSi—Z3—SZ4] (II), wherein, Z1 represents a hydrolysable functional group; Z2 represents a C1-C10 alkyl or aryl group; Z3 represents a C2-C11 cyclic or linear hydrocarbon; Z4 is either H or O3H; and x represents any one of integers 1, 2, and 3. The composition may be used as a support material to covalently attach transition metal cations, as a sorbent for olefin/paraffin separations, as a catalyst support for hydrogenation reactions, as a precursor for highly dispersed metal nanoparticles, or as a polar sorbent for crude feeds.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: January 15, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Joseph M. Falkowski, Mobae Afeworki, David C. Calabro, David A. Griffin, Simon C. Weston
  • Publication number: 20180273390
    Abstract: A novel zeolitic imidazolate framework material comprises a partially saturated benzimidazole or a partially saturated substituted benzimidazole as a linking ligand, optionally together with unsaturated benzimidazole or an unsaturated substituted benzimidazole as a further linking ligand.
    Type: Application
    Filed: March 19, 2018
    Publication date: September 27, 2018
    Inventors: Joseph M. FALKOWSKI, David C. CALABRO, Yi DU, Mobae AFEWORKI, Simon C. WESTON