Patents by Inventor Rajesh Kumar Parsapur

Rajesh Kumar Parsapur 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: 20250256267
    Abstract: Methods and compositions provided concerning pillared lamellar mesoporous crystalline microporous material (CMM), such as pillared lamellar zeolites. In certain embodiments herein methods and compositions concern pillared FAU zeolite, such as FAU zeolite that has stabilized mesopores derived from pillaring of a FAU zeolite having a long-range mesoporous ordering having a lamellar mesophase.
    Type: Application
    Filed: February 14, 2024
    Publication date: August 14, 2025
    Applicants: SAUDI ARABIAN OIL COMPANY, King Abdullah University of Science and Technology
    Inventors: Robert Peter Hodgkins, Omer Refa Koseoglu, Rajesh Kumar Parsapur, Kuo-Wei Huang, Magnus Rueping, Anissa Bendjeriou-Sedjerari
  • Publication number: 20250223179
    Abstract: Methods of making hierarchically ordered crystalline microporous materials are provided. The method may include forming an aqueous suspension comprising a parent crystalline microporous material, an alkaline reagent, a supramolecular template, and a silica source material, an alumina source material, or both. The method may further include hydrothermally treating the aqueous suspension to form the hierarchically ordered crystalline microporous material. The hierarchically ordered crystalline material may have a greater degree of mesoporosity than the parent crystalline microporous material and may have a silica-to-alumina ratio (SAR) that is at least 0.5 different than the parent crystalline microporous material.
    Type: Application
    Filed: April 29, 2024
    Publication date: July 10, 2025
    Applicants: Saudi Arabian Oil Company, King Abdullah University of Science and Technology
    Inventors: Robert Peter Hodgkins, Omer Refa Koseoglu, Rajesh Kumar Parsapur, Anissa Bendjeriou-Sedjerari, Kuo-Wei Huang, Magnus Rueping
  • Patent number: 12338130
    Abstract: A composition of matter is provided comprising hierarchically ordered crystalline microporous material having well-defined long-range mesoporous ordering of lamellar symmetry. The composition possesses mesopores having walls of crystalline microporous material and a mass of mesostructure between mesopores of crystalline microporous material. Long-range ordering is defined by presence of secondary peaks in an X-ray diffraction (XRD) pattern and/or lamellar symmetry observable by microscopy.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: June 24, 2025
    Assignees: Saudi Arabian Oil Company, King Abdullah University of Science and Technology
    Inventors: Rajesh Kumar Parsapur, Robert P. Hodgkins, Omer Refa Koseoglu, Kuo-Wei Huang, Anissa Bendjeriou Sedjerari
  • Patent number: 12290799
    Abstract: A composition of matter is provided comprising hierarchically ordered crystalline microporous material having well-defined long-range mesoporous ordering of hexagonal symmetry. The composition possesses mesopores having walls of crystalline microporous material and a mass of mesostructure between mesopores of crystalline microporous material. Long-range ordering is defined by presence of secondary peaks in an X-ray diffraction (XRD) pattern and/or hexagonal symmetry observable by microscopy.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: May 6, 2025
    Assignees: Saudi Arabian Oil Company, King Abdullah University of Science and Technology
    Inventors: Rajesh Kumar Parsapur, Robert P. Hodgkins, Omer Refa Koseoglu, Kuo-Wei Huang, Anissa Bendjeriou Sedjerari
  • Publication number: 20250121364
    Abstract: According to one or more embodiments, a zeolite beta material may be made by a method that may include adding a parent zeolite beta in a basic solution to form a basic zeolite beta suspension, adding water to the basic zeolite beta suspension to form a dilute basic zeolite beta suspension, hydrothermally treating the dilute basic zeolite beta suspension to form a hydrothermally treated mixture, and separating from the hydrothermally treated mixture a solid zeolite beta material consisting essentially of polymorph-A and polymorph-B. The molar ratio of polymorph-A to polymorph-B of the solid zeolite beta material may be greater than molar ratio of polymorph-A to polymorph-B of the parent zeolite beta.
    Type: Application
    Filed: October 12, 2023
    Publication date: April 17, 2025
    Applicants: Saudi Arabian Oil Company, King Abdullah University of Science and Technology
    Inventors: Rajesh Kumar Parsapur, Robert Peter Hodgkins, Omer Refa Koseoglu, Kuo-Wei Huang, Magnus Rueping, Anissa Bendjeriou Sedjerari
  • Publication number: 20250091038
    Abstract: Modified zeolite may include a microporous framework including a plurality of micropores having diameters of less than or equal to 2 nm, wherein the microporous framework includes at least silicon atoms and oxygen atoms; a plurality of mesopores having diameters of greater than 2 nm and less than or equal to 50 nm, wherein the plurality of mesopores are ordered with cubic symmetry. The modified zeolite also includes: isolated terminal primary amine functionalities bonded to silicon atoms of the microporous framework; or silazane functionalities, wherein the nitrogen atom of the silazane bridges two silicon atoms of the microporous framework; or both.
    Type: Application
    Filed: September 19, 2023
    Publication date: March 20, 2025
    Applicant: Saudi Arabian Oil Company
    Inventors: Robert Peter Hodgkins, Omer Refa Koseoglu, Kuo-Wei Huang, Magnus Rueping, Anissa Bendjeriou Sedjerari, Rajesh Kumar Parsapur, Swechchha Pandey
  • Publication number: 20250059454
    Abstract: Methods for processing a hydrocarbon feedstock may include cracking at least a portion of the hydrocarbon feedstock by contacting the hydrocarbon feedstock with a modified zeolite in the presence of hydrogen to form an intermediate cracked product and steam cracking at least a portion of the intermediate cracked product to form a steam cracked product. The intermediate cracked product may include at least 30 wt. % of one or more linear alkanes. The modified zeolite may include a microporous framework. The microporous framework may include at least silicon atoms and oxygen atoms. The modified zeolite also includes a plurality of Group 4-6 metal atoms each bonded to four bridging oxygen atoms, wherein each of the bridging oxygen atoms bonded to the Group 4-6 metal atoms bridges one of the plurality of the Group 4-6 metal atoms and a silicon atom of the microporous framework.
    Type: Application
    Filed: July 24, 2023
    Publication date: February 20, 2025
    Applicant: Saudi Arabian Oil Company
    Inventors: Robert Peter Hodgkins, Omer Refa Koseoglu, Kuo-Wei Huang, Magnus Rueping, Anissa Bendjeriou-Sedjerari, Rajesh Kumar Parsapur, Manoja K. Samantaray
  • Publication number: 20250051174
    Abstract: Modified zeolites may include a microporous framework including a plurality of micropores having diameters of less than or equal to 2 nm. The microporous framework may include at least silicon atoms and oxygen atoms. The modified zeolite may include a plurality of mesopores having diameters of greater than 2 nm and less than or equal to 50 nm, wherein the plurality of mesopores are ordered with cubic symmetry. The modified zeolite may include a plurality of titanium atoms each bonded to four bridging oxygen atoms, wherein each of the bridging oxygen atoms bonded to the titanium atoms bridges one of the plurality of the titanium atoms and a silicon atom of the microporous framework.
    Type: Application
    Filed: July 24, 2023
    Publication date: February 13, 2025
    Applicants: Saudi Arabian Oil Company, King Abdullah University of Science and Technology
    Inventors: Robert Peter Hodgkins, Omer Refa Koseoglu, Kuo-Wei Huang, Magnus Rueping, Anissa Bendjeriou-Sedjerari, Rajesh Kumar Parsapur, Manoja K. Samantaray
  • Publication number: 20240424486
    Abstract: Modified zeolites may include a microporous framework including a plurality of micropores having diameters of less than or equal to 2 nm. The microporous framework may include at least silicon atoms and oxygen atoms. The modified zeolite may include a plurality of mesopores having diameters of greater than 2 nm and less than or equal to 50 nm, wherein the plurality of mesopores are ordered with cubic symmetry. The modified zeolite may include a plurality of titanium hydride moieties each bonded to at least two bridging oxygen atoms, wherein a titanium atom of the titanium hydride is bonded to the bridging oxygen atom, and wherein the bridging oxygen atom bridges the titanium atom of the titanium hydride moiety and a silicon atom of the microporous framework.
    Type: Application
    Filed: June 15, 2023
    Publication date: December 26, 2024
    Inventors: Robert Peter Hodgkins, Omer Refa Koseoglu, Kuo-Wei Huang, Magnus Rueping, Manoja K. Samantaray, Rajesh Kumar Parsapur, Anissa Bendjeriou Sedjerari
  • Publication number: 20240424487
    Abstract: Modified zeolites may include a microporous framework including a plurality of micropores having diameters of less than or equal to 2 nm. The microporous framework may include at least silicon atoms and oxygen atoms. The modified zeolite may include a plurality of mesopores having diameters of greater than 2 nm and less than or equal to 50 nm, wherein the plurality of mesopores are ordered with cubic symmetry. The modified zeolite may include a plurality of zirconium hydride moieties each bonded to at least two bridging oxygen atoms, wherein a zirconium atom of the zirconium hydride is bonded to the bridging oxygen atom, and wherein the bridging oxygen atom bridges the zirconium atom of the zirconium hydride moiety and a silicon atom of the microporous framework.
    Type: Application
    Filed: June 15, 2023
    Publication date: December 26, 2024
    Applicants: Saudi Arabian Oil Company, King Abdullah University of Science and Technology
    Inventors: Robert Peter Hodgkins, Omer Refa Koseoglu, Kuo-Wei Huang, Magnus Rueping, Manoja K. Samantaray, Rajesh Kumar Parsapur, Anissa Bendjeriou Sedjerari
  • Publication number: 20240416330
    Abstract: Described herein are zeolite Beta particles with radially arranged mesopores and methods of making the same. In one or more embodiments, a zeolite Beta particle may include a Beta zeolitic framework including a plurality of micropores having diameters of less than or equal to 2 nm. In embodiments, the Beta zeolitic framework may include alumina and silica. In embodiments, the zeolite Beta particles disclosed herein may include a plurality of mesopores having diameters of greater than 2 nm and less than or equal to 50 nm. In embodiments, the plurality of mesopores may be arranged in a center-radial configuration, such that mesopores run from a central region of the zeolite Beta particle towards the edge of the zeolite Beta particle.
    Type: Application
    Filed: June 16, 2023
    Publication date: December 19, 2024
    Applicants: Saudi Arabian Oil Company, King Abdullah University of Science and Technology
    Inventors: Rajesh Kumar Parsapur, Robert Peter Hodgkins, Omer Refa Koseoglu, Kuo-Wei Huang, Anissa Bendjeriou Sedjerari
  • Publication number: 20240416333
    Abstract: Modified zeolites may include a microporous framework including a plurality of micropores having diameters of less than or equal to 2 nm. The microporous framework may include at least silicon atoms and oxygen atoms. The modified zeolite may include a plurality of mesopores having diameters of greater than 2 nm and less than or equal to 50 nm, wherein the plurality of mesopores are ordered with cubic symmetry. The modified zeolite may include a plurality of hafnium hydride moieties each bonded to at least two bridging oxygen atoms, wherein a hafnium atom of the hafnium hydride is bonded to the bridging oxygen atom, and wherein the bridging oxygen atom bridges the hafnium atom of the hafnium hydride moiety and a silicon atom of the microporous framework.
    Type: Application
    Filed: June 15, 2023
    Publication date: December 19, 2024
    Applicants: Saudi Arabian Oil Company, King Abdullah University of Science and Technology
    Inventors: Robert Peter Hodgkins, Omer Refa Koseoglu, Kuo-Wei Huang, Magnus Rueping, Manoja K. Samantaray, Rajesh Kumar Parsapur, Anissa Bendjeriou Sedjerari
  • Patent number: 12152204
    Abstract: A composition of matter is provided comprising hierarchically ordered crystalline microporous material having well-defined long-range mesoporous ordering of cubic symmetry. The composition possesses mesopores having walls of crystalline microporous material and a mass of mesostructure between mesopores of crystalline microporous material. Long-range ordering is defined by presence of secondary peaks in an X-ray diffraction (XRD) pattern and/or cubic symmetry observable by microscopy.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: November 26, 2024
    Assignees: Saudi Arabian Oil Company, KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Rajesh Kumar Parsapur, Robert P. Hodgkins, Omer Refa Koseoglu, Kuo-Wei Huang, Anissa Bendjeriou Sedjerari
  • Publication number: 20240010935
    Abstract: A composition of matter is provided comprising hierarchically ordered crystalline microporous material having well-defined long-range mesoporous ordering of cubic symmetry. The composition possesses mesopores having walls of crystalline microporous material and a mass of mesostructure between mesopores of crystalline microporous material. Long-range ordering is defined by presence of secondary peaks in an X-ray diffraction (XRD) pattern and/or cubic symmetry observable by microscopy.
    Type: Application
    Filed: July 5, 2022
    Publication date: January 11, 2024
    Inventors: Rajesh Kumar PARSAPUR, Robert P. HODGKINS, Omer Refa KOSEOGLU, Kuo-Wei HUANG, Anissa Bendjeriou SEDJERARI
  • Publication number: 20240009656
    Abstract: A composition of matter is provided comprising hierarchically ordered crystalline microporous material having well-defined long-range mesoporous ordering of cubic symmetry. The composition possesses mesopores having walls of crystalline microporous material and a mass of mesostructure between mesopores of crystalline microporous material. Long-range ordering is defined by presence of secondary peaks in an X-ray diffraction (XRD) pattern and/or cubic symmetry observable by microscopy.
    Type: Application
    Filed: January 9, 2023
    Publication date: January 11, 2024
    Inventors: Rajesh Kumar PARSAPUR, Robert Peter HODGKINS, Omer Refa KOSEOGLU, Kuo-Wei HUANG, Anissa Bendjeriou SEDJERARI
  • Publication number: 20240010504
    Abstract: A composition of matter is provided comprising hierarchically ordered crystalline microporous material having well-defined long-range mesoporous ordering of lamellar symmetry. The composition possesses mesopores having walls of crystalline microporous material and a mass of mesostructure between mesopores of crystalline microporous material. Long-range ordering is defined by presence of secondary peaks in an X-ray diffraction (XRD) pattern and/or lamellar symmetry observable by microscopy.
    Type: Application
    Filed: July 5, 2022
    Publication date: January 11, 2024
    Inventors: Rajesh Kumar PARSAPUR, Robert P. HODGKINS, Omer Refa KOSEOGLU, Kuo-Wei HUANG, Anissa Bendjeriou SEDJERARI
  • Publication number: 20240009657
    Abstract: A composition of matter is provided comprising hierarchically ordered crystalline microporous material having well-defined long-range mesoporous ordering of hexagonal symmetry. The composition possesses mesopores having walls of crystalline microporous material and a mass of mesostructure between mesopores of crystalline microporous material. Long-range ordering is defined by presence of secondary peaks in an X-ray diffraction (XRD) pattern and/or hexagonal symmetry observable by microscopy.
    Type: Application
    Filed: July 5, 2022
    Publication date: January 11, 2024
    Inventors: Rajesh Kumar PARSAPUR, Robert P. HODGKINS, Omer Refa KOSEOGLU, Kuo-Wei HUANG, Anissa Bendjeriou SEDJERARI
  • Publication number: 20240010505
    Abstract: A composition of matter is provided comprising hierarchically ordered crystalline microporous material having well-defined long-range mesoporous ordering of hexagonal symmetry. The composition possesses mesopores having walls of crystalline microporous material and a mass of mesostructure between mesopores of crystalline microporous material. Long-range ordering is defined by presence of secondary peaks in an X-ray diffraction (XRD) pattern and/or hexagonal symmetry observable by microscopy.
    Type: Application
    Filed: January 9, 2023
    Publication date: January 11, 2024
    Inventors: Rajesh Kumar PARSAPUR, Robert Peter HODGKINS, Omer Refa KOSEOGLU, Kuo-Wei HUANG, Anissa Bendjeriou SEDJERARI
  • Publication number: 20240010662
    Abstract: Methods for synthesis of hierarchically ordered zeolites and zeolite-type materials are provided. Synthesized hierarchically ordered zeolites and zeolite-type materials formed according to the methods herein possess a high-degree of well-defined long-range mesoporous ordering. The methods include base-mediated reassembly, by dissolution of the parent material to the level of oligomeric structural building units of the parent material, and minimizing or avoiding amorphization/structural collapse. The dissolution and self-assembly is comprehensively controlled to produce hierarchically ordered zeolites and zeolite-type materials according to the methods herein.
    Type: Application
    Filed: July 5, 2022
    Publication date: January 11, 2024
    Inventors: Rajesh Kumar PARSAPUR, Robert P. HODGKINS, Omer Refa KOSEOGLU, Kuo-Wei HUANG, Anissa Bendjeriou SEDJERARI
  • Publication number: 20240009660
    Abstract: Methods for synthesis of hierarchically ordered zeolites and zeolite-type materials are provided. Synthesized hierarchically ordered zeolites and zeolite-type materials formed according to the methods herein possess a high-degree of well-defined long-range mesoporous ordering. The methods include base-mediated reassembly, by dissolution of the parent material to the level of oligomeric structural building units of the parent material, and minimizing or avoiding amorphization/structural collapse. The dissolution and self-assembly is comprehensively controlled to produce hierarchically ordered zeolites and zeolite-type materials according to the methods herein.
    Type: Application
    Filed: January 9, 2023
    Publication date: January 11, 2024
    Inventors: Rajesh Kumar PARSAPUR, Robert Peter HODGKINS, Omer Refa KOSEOGLU, Kuo-Wei HUANG, Anissa Bendjeriou SEDJERARI