Patents by Inventor Chandrashekhar Kelkar

Chandrashekhar Kelkar 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: 20240131497
    Abstract: Disclosed herein is a YNU-5 zeolite and/or a phosphorus modified YNU-5 zeolite, methods of their preparation, and methods of their use in hydrocarbon conversion processes, e.g., as part of a catalyst component and/or as part of a catalyst composition. Catalyst components with YNU-5 zeolite and/or with phosphorus modified YNU-5 zeolites, their methods of preparation, and their methods of use suitable for petroleum refining applications (e.g., hydrocarbon conversion processes such as fluid catalytic cracking and hydrocracking) are described herein. Also disclosed herein are catalyst compositions, which include YNU-5 zeolites and/or phosphorus modified YNU-5 zeolites and catalyst components thereof along with at least one additional catalyst component.
    Type: Application
    Filed: January 31, 2022
    Publication date: April 25, 2024
    Inventors: Toshiyuki Yokoi, Bilge Yilmaz, Chandrashekhar Kelkar, Christopher John Gilbert, Sungsik Park
  • Publication number: 20240132789
    Abstract: Disclosed herein is a phosphorus modified UZM-35 zeolite, methods of its preparation, and methods of its use in hydrocarbon conversion processes, e.g., as part of a catalyst component and/or as part of a catalyst composition. Catalyst components with phosphorus modified UZM-35, their methods of preparation, and their methods of use suitable for petroleum refining applications (e.g., hydrocarbon conversion processes such as fluid catalytic cracking and hydrocracking) are described herein. Also disclosed herein are catalyst compositions, which include phosphorus modified UZM-35 and catalyst components thereof along with at least one additional catalyst component. Methods of preparing and methods of using such catalyst compositions are also encompassed by the instant disclosure.
    Type: Application
    Filed: March 2, 2022
    Publication date: April 25, 2024
    Inventors: Toshiyuki YOKOI, Bilge YILMAZ, Chandrashekhar KELKAR, Christopher John GILBERT, David M. STOCKWELL, Xingtao GAO
  • Patent number: 11691116
    Abstract: A cyclic metals deactivation system unit for the production of equilibrium catalyst materials including a cracker vessel configured for cracking and stripping a catalyst material; and a regenerator vessel in fluid communication with the cracker vessel, the regenerator vessel configured for regeneration and steam deactivation of the catalyst material.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: July 4, 2023
    Assignee: BASF CORPORATION
    Inventors: James C. Fu, Chandrashekhar Kelkar, Roman Matlin, Johannes Mang, Andreas Mueller
  • Publication number: 20220355261
    Abstract: A cyclic metals deactivation system unit for the production of equilibrium catalyst materials including a cracker vessel configured for cracking and stripping a catalyst material; and a regenerator vessel in fluid communication with the cracker vessel, the regenerator vessel configured for regeneration and steam deactivation of the catalyst material.
    Type: Application
    Filed: July 26, 2022
    Publication date: November 10, 2022
    Inventors: James C. Fu, Chandrashekhar Kelkar, Roman Matlin, Johannes Mang, Andreas Mueller
  • Patent number: 11446624
    Abstract: A cyclic metals deactivation system unit for the production of equilibrium catalyst materials including a cracker vessel configured for cracking and stripping a catalyst material; and a regenerator vessel in fluid communication with the cracker vessel, the regenerator vessel configured for regeneration and steam deactivation of the catalyst material.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: September 20, 2022
    Assignee: BASF Corporation
    Inventors: James C. Fu, Chandrashekhar Kelkar, Roman Matlin, Johannes Mang, Andreas Mueller
  • Publication number: 20200384432
    Abstract: A cyclic metals deactivation system unit for the production of equilibrium catalyst materials including a cracker vessel configured for cracking and stripping a catalyst material; and a regenerator vessel in fluid communication with the cracker vessel, the regenerator vessel configured for regeneration and steam deactivation of the catalyst material.
    Type: Application
    Filed: August 24, 2020
    Publication date: December 10, 2020
    Applicant: BASF Corporation
    Inventors: James C. Fu, Chandrashekhar Kelkar, Roman Matlin, Johannes Mang, Andreas Mueller
  • Patent number: 10828614
    Abstract: A cyclic metals deactivation system unit for the production of equilibrium catalyst materials including a cracker vessel configured for cracking and stripping a catalyst material; and a regenerator vessel in fluid communication with the cracker vessel, the regenerator vessel configured for regeneration and steam deactivation of the catalyst material.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: November 10, 2020
    Assignee: BASF CORPORATION
    Inventors: James C. Fu, Chandrashekhar Kelkar, Roman Matlin, Johannes Mang, Andreas Mueller