Patents by Inventor Cong-Yan Chen

Cong-Yan Chen 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: 20250065312
    Abstract: A novel synthetic crystalline molecular sieve material, designated boron ITQ-21, is provided. The boron ITQ-21 can be synthesized using an N,N-diethyl-5,8-dimethyl-2-azonium bicyclo [3.2.2] nonane cation as a structure directing agent. The boron ITQ-21 may be used in organic compound conversion reactions and/or sorptive processes.
    Type: Application
    Filed: August 21, 2024
    Publication date: February 27, 2025
    Applicant: Chevron U.S.A. Inc.
    Inventors: Stacey I. Zones, Cong-Yan Chen
  • Publication number: 20250019250
    Abstract: A method for synthesizing a zeolite having an of MFI framework structure is provided. The method includes (i) preparing a reaction mixture comprising a source of aluminum, a source of silicon, a structure directing agent comprising 2,2-dipropylpentane-1-amine, a source of fluoride ions, and water; (ii) heating the reaction mixture under crystallization conditions including a temperature of from 100° C. to 200° C. for a time sufficient to form crystals of the aluminosilicate zeolite; and (iii) recovering the crystals of the aluminosilicate zeolite from the reaction mixture.
    Type: Application
    Filed: July 5, 2024
    Publication date: January 16, 2025
    Inventors: Jesús C. PASCUAL, Stacey Ian ZONES, Cong-Yan CHEN
  • Patent number: 12097485
    Abstract: A method is disclosed for producing small crystal, high aluminum content zincoaluminosilicate crystalline materials having the SSZ-41 framework structure. The compositions made according to that method, as well as uses of the same, are also disclosed.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: September 24, 2024
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Stacey Ian Zones, Cong-Yan Chen
  • Publication number: 20240270585
    Abstract: This disclosure relates to a ferrosilicate molecular sieve of MTW framework topology, its synthesis and use. Ferrosilicate MTW may be directly prepared using 1,3-diisobutylimidazolium cations as a structure directing agent. Ferrosilicate MTW may be used in organic compounds conversion and absorptive processes.
    Type: Application
    Filed: February 7, 2023
    Publication date: August 15, 2024
    Inventors: Christopher Michael LEW, Rishabh JAIN, Cong-Yan CHEN
  • Publication number: 20240263084
    Abstract: An improved reforming process for producing aromatic hydrocarbons is disclosed. The process includes two reformers arranged in parallel flow configuration, with the first reformer being a conventional reformer comprising a catalyst selective for reforming C8+ hydrocarbons to a reformate and the second reformer comprising a catalyst selective for reforming C7? hydrocarbons to a reformate. In certain embodiments, the first reformer catalyst comprises a conventional alumina catalyst and the second reformer catalyst comprises a ZSM-5 catalyst.
    Type: Application
    Filed: March 26, 2024
    Publication date: August 8, 2024
    Inventors: Cong-Yan CHEN, Emmanuel BEHRAZ
  • Publication number: 20240158246
    Abstract: This disclosure relates to an aluminogermanosilicate molecular sieve, designated as SSZ-124, methods for making the same, and uses thereof.
    Type: Application
    Filed: October 26, 2023
    Publication date: May 16, 2024
    Inventors: Stacey Ian ZONES, Joel Edward SCHMIDT, Cong-Yan CHEN
  • Publication number: 20240123433
    Abstract: Provided is a process for hydrocracking normal paraffins into lighter normal paraffins with minimal formation of iso-paraffins. The process comprises hydrocracking a hydrocarbon feedstock comprising normal paraffins under hydrocracking conditions. The reaction is run in the presence of a selected catalyst, e.g., an LTA-type zeolite, with a requisite topology and acid site density. The zeolite has a framework type with voids greater than 0.50 nm in diameter, which are accessible through apertures characterized by a longest diameter of less than 0.50 nm and a shortest diameter of more than 0.30 nm. The reaction conducted in the presence of such a selected zeolite produces an n-paraffin rich product.
    Type: Application
    Filed: December 29, 2021
    Publication date: April 18, 2024
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Cong-Yan CHEN, Theodorus Ludovicus Michael MAESEN, Tracy Margaret DAVIS, Dan XIE
  • Patent number: 11939537
    Abstract: An improved reforming process for producing aromatic hydrocarbons is disclosed. The process includes two reformers arranged in parallel flow configuration, with the first reformer being a conventional reformer comprising a catalyst selective for reforming C8+ hydrocarbons to a reformate and the second reformer comprising a catalyst selective for reforming C7? hydrocarbons to a reformate. In certain embodiments, the first reformer catalyst comprises a conventional alumina catalyst and the second reformer catalyst comprises a ZSM-5 catalyst.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: March 26, 2024
    Assignee: Chevron U.S.A. Inc.
    Inventors: Cong-Yan Chen, Emmanuel Behraz
  • Publication number: 20240091750
    Abstract: A novel synthetic crystalline molecular sieve material, designated boron SSZ-41 is provided. The boron SSZ-41 is a boronzincosilicate molecular sieve having the framework structure of SSZ-41. It can be synthesized using 1,1?-(1,4-butanediyl)bis[4-aza-1-azoniabicyclo[2.2.2]octane] dications as a structure directing agent. The boronzincosilicate SSZ-41 may be used in organic compound conversion reactions and/or sorptive processes.
    Type: Application
    Filed: August 30, 2023
    Publication date: March 21, 2024
    Applicant: Chevron U.S.A. Inc.
    Inventors: Stacey I. ZONES, Cong-Yan CHEN
  • Publication number: 20240059986
    Abstract: Provided is a process for hydrocracking normal paraffins into lighter normal paraffins with minimal formation of iso-paraffins. The process comprises hydrocracking a hydrocarbon feedstock comprising normal paraffins under hydrocracking conditions. The reaction is run in the presence of a specific type of zeolite based catalyst which has been found to provide high conversion with minimal iso-paraffin products. In one embodiment, the zeolite is of the framework PWO. The reaction conducted in the presence of the zeolite based catalyst produces an n-paraffin rich product that needs no separation step before being fed to a steam cracker to produce lower olefins.
    Type: Application
    Filed: December 29, 2021
    Publication date: February 22, 2024
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Joel SCHMIDT, Cong-Yan CHEN, Theodorus Ludovicus Michael MAESEN, Dan XIE
  • Patent number: 11865524
    Abstract: A novel synthetic crystalline aluminogermanosilicate molecular sieve material, designated SSZ-117x, is provided. SSZ-117x can be synthesized using N,N,N,3,5-pentamethyladamantan-1-ammonium cations as a structure directing agent. SSZ-117x may be used in organic compound conversion reactions and/or sorptive processes.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: January 9, 2024
    Assignee: Chevron U.S.A. Inc.
    Inventors: Stacey Ian Zones, Dan Xie, Cong-Yan Chen
  • Publication number: 20230381760
    Abstract: Provided is a novel synthetic crystalline borongermanosilicate molecular sieve material, designated boron SSZ-113. The boron SSZ-113 can be synthesized using 1,3 bis(2,3-dimethyl-1H-imidazolium) propane dications as a structure directing agent. The boron SSZ-113 may be used in organic compound conversion reactions and/or sorptive processes, and in particular, in reforming reactions.
    Type: Application
    Filed: May 30, 2023
    Publication date: November 30, 2023
    Applicant: Chevron U.S.A. Inc.
    Inventors: Stacey I. Zones, Cong-Yan Chen
  • Publication number: 20230382744
    Abstract: A novel synthetic crystalline borongermanosilicate molecular sieve material, designated boron SSZ-117x, is provided. The boron SSZ-117x can be synthesized using N,N,N,3,5-pentamethyladamantan-1-ammonium cations as a structure directing agent. The synthesis employs a boron pathway to achieve the boron molecular sieve. The boron SSZ-117x may be used in organic compound conversion reactions, such as reforming, and/or sorptive processes.
    Type: Application
    Filed: May 30, 2023
    Publication date: November 30, 2023
    Applicant: Chevron U.S.A. Inc.
    Inventors: Stacey I. Zones, Cong-Yan Chen
  • Publication number: 20230381759
    Abstract: A novel synthetic crystalline molecular sieve material, designated boron SSZ-121 is provided. The boron SSZ-121 can be synthesized using 1,3-bis(1-adamantyl)imidazolium cations as a structure directing agent. The boron SSZ-121 may be used in organic compound conversion reactions and/or sorptive processes.
    Type: Application
    Filed: May 30, 2023
    Publication date: November 30, 2023
    Applicant: Chevron U.S.A. Inc.
    Inventors: Stacey I. Zones, Cong-Yan Chen
  • Patent number: 11643374
    Abstract: A process for producing high octane bio-based alkylate is provided. The process involves reacting isobutane and bio-ethylene using an ionic liquid catalyst. Reaction conditions can be chosen to assist in attaining, or to optimize, desirable alkylate yields and/or properties.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: May 9, 2023
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Bong-Kyu Chang, Hye-Kyung Cho Timken, Michelle K. Young, Cong-Yan Chen, Stephen Joseph Miller
  • Publication number: 20230131346
    Abstract: A method is disclosed for producing small crystal, high aluminum content zincoaluminosilicate crystalline materials having the SSZ-41 framework structure. The compositions made according to that method, as well as uses of the same, are also disclosed.
    Type: Application
    Filed: December 12, 2022
    Publication date: April 27, 2023
    Inventors: Stacey Ian ZONES, Cong-Yan CHEN
  • Publication number: 20230109602
    Abstract: A novel synthetic crystalline aluminogermanosilicate molecular sieve material, designated SSZ-116, is provided. SSZ-116 can be synthesized using 3-[(3,5-di-tert-butylphenyl)methyl]-1,2-dimethyl-1H-imidazolium cations as a structure directing agent. SSZ-116 may be used in organic compound conversion reactions and/or sorptive processes.
    Type: Application
    Filed: December 12, 2022
    Publication date: April 6, 2023
    Inventors: Stacey Ian ZONES, Jesus PASCUAL, Dan XIE, Cong-Yan CHEN
  • Patent number: 11591231
    Abstract: An organotemplate-free synthetic process for the production of a zeolite of TON framework type structure is provided. The process includes the steps of: (1) preparing a mixture comprising: (a) an alumina-coated silica; (b) a source of an alkali metal; (c) an alcohol; (d) a source of hydroxide ions; (e) seed crystals comprising a zeolitic material having a TON framework type structure; and (f) water; and (2) crystallizing the mixture obtained in step (1).
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: February 28, 2023
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Joel Edward Schmidt, Adeola Florence Ojo, Cong-Yan Chen
  • Patent number: 11571685
    Abstract: A novel synthetic crystalline aluminogermanosilicate molecular sieve material, designated SSZ-116, is provided. SSZ-116 can be synthesized using 3-[(3,5-di-tert-butylphenyl)methyl]-1,2-dimethyl-1H-imidazolium cations as a structure directing agent. SSZ-116 may be used in organic compound conversion reactions and/or sorptive processes.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: February 7, 2023
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Stacey Ian Zones, Jesus Pascual, Dan Xie, Cong-Yan Chen
  • Patent number: 11547986
    Abstract: A method is disclosed for producing small crystal, high aluminum content zincoaluminosilicate crystalline materials having the SSZ-41 framework structure. The compositions made according to that method, as well as uses of the same, are also disclosed.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: January 10, 2023
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Stacey Ian Zones, Cong-Yan Chen