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: 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: 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
  • 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: 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
  • 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
  • Publication number: 20220347663
    Abstract: A ferrosilicate molecular sieve having the framework structure of SSZ-70 and a method of making the same is disclosed. The ferrosilicate molecular sieve can be used in processes for dewaxing paraffinic hydrocarbon feedstocks.
    Type: Application
    Filed: April 27, 2021
    Publication date: November 3, 2022
    Inventors: Christopher Michael LEW, Cong-Yan CHEN, Bi-Zeng ZHAN, Stacey Ian ZONES
  • Publication number: 20220288572
    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: March 14, 2022
    Publication date: September 15, 2022
    Inventors: Stacey Ian ZONES, Cong-Yan CHEN
  • Publication number: 20220243137
    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: April 21, 2020
    Publication date: August 4, 2022
    Inventors: Cong-Yan CHEN, Emmanuel BEHRAZ
  • Publication number: 20220185685
    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: Application
    Filed: June 25, 2021
    Publication date: June 16, 2022
    Inventors: Joel Edward SCHMIDT, Adeola Florence OJO, Cong-Yan CHEN
  • Publication number: 20220072520
    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: Application
    Filed: November 19, 2021
    Publication date: March 10, 2022
    Applicant: Chevron U.S.A. Inc.
    Inventors: Stacey Ian ZONES, Dan XIE, Cong-Yan CHEN
  • Patent number: 11247948
    Abstract: Provided herein is a unique process that prepares a saturated hydrocarbon mixture with well-controlled structural characteristics that address the performance requirements driven by the stricter environmental and fuel economy regulations for automotive engine oils. The process allows for the branching characteristics of the hydrocarbon molecules to be controlled so as to consistently provide a composition that has a surprising CCS viscosity at ?35° C. (ASTM D5329) and Noack volatility (ASTM D5800) relationship. The process comprises providing a specific olefinic feedstock, oligomerizing in the presence of a BF3 catalyst, and hydroisomerizing in the presence of a noble-metal impregnated, 10-member ring zeolite catalyst.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: February 15, 2022
    Assignees: Chevron U.S.A. Inc., Novvi LLC
    Inventors: Eduardo Baralt, Cong-Yan Chen, Yalin Hao, Liwenny Ho, Willbe Ho, Ajit Pradhan, Jason Rosalli, Benton Thomas, Jason Wells