Patents by Inventor Tengfei Liu

Tengfei Liu 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: 20240392096
    Abstract: Provided is a stable blend of a petroleum atmospheric tower bottoms (ATBs) feedstock and 1-20 wt. % of plastic, based on the weight of the blend, with the plastic comprising polyethylene and/or polypropylene, and the plastic in the blend comprising finely dispersed microcrystalline particles having an average particle size of 10 micron to less than 100 microns. A process for preparing a stable blend of plastic and petroleum is provided, comprising mixing together a petroleum feed and a plastic comprising polyethylene and/or polypropylene and heating the mixture above the melting point of the plastic, but less than 500° F. Then cooling the plastic melt and petroleum feedstock liquid blend with mixing to a temperature below the melting point of the plastic.
    Type: Application
    Filed: May 22, 2024
    Publication date: November 28, 2024
    Applicant: Chevron U.S.A. Inc.
    Inventors: Joel Edward SCHMIDT, Richard L. GROVE, Robert MONTGOMERY, Tengfei LIU, Hye-Kyung Cho TIMKEN
  • Publication number: 20240352320
    Abstract: A method for making needle coke includes processing a feed comprising one or more renewable feedstocks in the presence of a cracking catalyst under fluidized catalytic cracking conditions to obtain a heavy cycle oil, delayed coking the heavy cycle oil under coking conditions to obtain an intermediate coke product, and calcining the intermediate coke product under calcinating conditions to obtain needle coke.
    Type: Application
    Filed: February 13, 2024
    Publication date: October 24, 2024
    Inventors: Tengfei Liu, Joel Edward Schmidt, Richard Grove, Robert Montgomery, Jon Peters, Christopher John Ross, Mahdi Khademi
  • Publication number: 20240335387
    Abstract: Provided are a lyophilized vortioxetine pamoate powder for injection and a preparation method therefor. The prepared powder for injection product has good permeability and stability, and is very suitable for industrialization.
    Type: Application
    Filed: August 5, 2021
    Publication date: October 10, 2024
    Inventors: Tengfei Liu, Jialei Fang, Yanan Wang, Laiyi Ni
  • Publication number: 20240191140
    Abstract: Provided is a blend of a petroleum feedstock and 1-20 wt. % of plastic, based on the weight of the blend, with the plastic comprising polyethylene and/or polypropylene, and the plastic in the blend comprising finely dispersed microcrystalline particles having an average particle size of 10 micron to less than 100 microns and less than 100 ppm chloride. A process for preparing a blend of plastic and petroleum is provided, comprising mixing together a petroleum feed and a plastic comprising polyethylene and/or polypropylene and heating the mixture in the range of from 550° F. to 700° F. The blend mixture is then hot filtered and then optionally treated with a chloride removal guard bed. The resulting blend can then be cooled and stored or sent directly to a refinery conversion unit.
    Type: Application
    Filed: July 10, 2023
    Publication date: June 13, 2024
    Applicant: Chevron U.S.A. Inc.
    Inventors: Hye-Kyung C. Timken, Joel E. Schmidt, Tengfei Liu
  • Publication number: 20240191142
    Abstract: Provided is a blend of a petroleum feedstock and 1-20 wt. % of plastic, based on the weight of the blend, with the plastic comprising polyethylene and/or polypropylene, and the plastic in the blend comprising finely dispersed microcrystalline particles having an average particle size of 10 micron to less than 100 microns, and less than 10 ppm chloride. A process for preparing a blend of plastic and petroleum is provided, comprising mixing together a petroleum feed and a plastic comprising polyethylene and/or polypropylene and heating the mixture above the melting point of the plastic, but less than 500° F. The blend mixture is then hot filtered with the resulting filtered blend mixture being heated to at least 500° F. The heated mixture can then be treated with a chloride removal guard bed. The resulting blend can then be cooled and stored or sent directly to a refinery conversion unit.
    Type: Application
    Filed: July 10, 2023
    Publication date: June 13, 2024
    Applicant: Chevron U.S.A. Inc.
    Inventors: Hye-Kyung C. Timken, Joel E. Schmidt, Tengfei Liu
  • Patent number: 11884885
    Abstract: A process is provided for producing a liquid hydrocarbon material suitable for use as a fuel or as a blending component in a fuel. The process includes co-processing a pyrolysis oil derived from a waste plastic raw material and a biorenewable feedstock comprising triglycerides in a catalytic cracking process in a presence of a solid catalyst at catalytic cracking conditions to provide a cracking product. The cracking product may be fractionated to provide at least one of a gasoline fraction and a middle distillate fraction.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: January 30, 2024
    Inventors: Tengfei Liu, Joel Edward Schmidt, Richard Grove, Hye-Kyung Cho Timken
  • Patent number: 11881186
    Abstract: The present disclosure discloses a detection method and a detection system. The detection method comprises: creating a plurality of template images based on a reference object, wherein the reference object includes a plurality of units, and the plurality of template images are unit images with different average grayscale values; calculating a first average grayscale value of a unit image to be detected; selecting a first template image from the plurality of template images based on the first average grayscale value, wherein a difference between an average grayscale value of the first template image and the first average grayscale value is smallest; performing color difference detection on the unit image to be detected based on the first template image.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: January 23, 2024
    Assignee: Skyverse Technology Co., Ltd.
    Inventors: Lu Chen, Tengfei Liu, Pengbin Zhang, Song Zhang
  • Publication number: 20240010583
    Abstract: Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a blend of a bio feedstock and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a FCC unit. A liquid petroleum gas LPG olefin/paraffin mixture and naphtha are recovered from the FCC unit and can be passed on to make polyethylene.
    Type: Application
    Filed: July 10, 2023
    Publication date: January 11, 2024
    Applicant: Chevron U.S.A. Inc.
    Inventors: Joel E. SCHMIDT, Tengfei LIU, Hye-Kyung C. TIMKEN
  • Publication number: 20240010927
    Abstract: Provided is a composition comprising a blend of a waste plastic and a bio feedstock. Also provided is a process for preparing a stable blend of a plastic and bio feedstock which can be stored or transported if desired. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend can be passed to a conversion unit for conversion of the waste plastic and bio feedstock. The conversion process produces clean monomers for polymerization and chemical intermediates.
    Type: Application
    Filed: July 10, 2023
    Publication date: January 11, 2024
    Applicant: Chevron U.S.A. Inc.
    Inventors: Tengfei LIU, Joel E. SCHMIDT, Hye-Kyung C. TIMKEN
  • Publication number: 20240010928
    Abstract: Provided is a continuous process for converting waste plastic into recycle for polypropylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a blend of a bio feedstock and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a FCC unit. A liquid petroleum gas LPG olefin/paraffin mixture and naphtha are recovered from the FCC unit and can be passed on to make polypropylene.
    Type: Application
    Filed: July 10, 2023
    Publication date: January 11, 2024
    Applicant: Chevron U.S.A. Inc.
    Inventors: Joel E. SCHMIDT, Tengfei LIU, Hye-Kyung C. TIMKEN
  • Publication number: 20240010940
    Abstract: Provided is a continuous process for converting waste plastic into recycle for chemical production. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a stable blend of a bio feedstock and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a conversion unit. Useful chemicals are recovered, including C3 and C4 olefins and aromatics.
    Type: Application
    Filed: July 10, 2023
    Publication date: January 11, 2024
    Applicant: Chevron U.S.A. Inc.
    Inventors: Tengfei LIU, Joel E. SCHMIDT, Hye-Kyung C. TIMKEN
  • Publication number: 20230312437
    Abstract: Provided is a continuous process for converting waste plastic into recycle for polypropylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery FCC unit. A liquid petroleum gas C3 olefin/paraffin mixture is recovered from the FCC unit. The C3 paraffins and C3 olefins are separated into different fractions with the C3 olefin fraction passed to a propylene polymerization reactor, and the C3 paraffin fraction passed optionally to a dehydrogenation unit to produce additional propylene.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 5, 2023
    Applicant: Chevron U.S.A. Inc.
    Inventors: Joel E. SCHMIDT, Hye-Kyung C. TIMKEN, Tengfei LIU, Richard L. GROVE, Kaidong CHEN
  • Publication number: 20230312862
    Abstract: Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery FCC unit. A liquid petroleum gas LPG olefin/paraffin mixture and naphtha are recovered from the FCC unit and passed to a steam cracker to make ethylene.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 5, 2023
    Applicant: Chevron U.S.A. Inc.
    Inventors: Tengfei LIU, Joel E. SCHMIDT, Hye-Kyung C. TIMKEN, Richard L. GROVE, Kaidong CHEN
  • Publication number: 20230312863
    Abstract: Provided is a blend of a petroleum feedstock and 1-20 wt. % of plastic, based on the weight of the blend, with the plastic comprising polyethylene and/or polypropylene, and the plastic in the blend comprising finely dispersed microcrystalline particles having an average particle size of 10 micron to less than 100 microns. A process for preparing a blend of plastic and petroleum is provided, comprising mixing together a petroleum feed and a plastic comprising polyethylene and/or polypropylene and heating the mixture above the melting point of the plastic, but less than 500° F. Then cooling the plastic melt and petroleum feedstock liquid blend with mixing to a temperature below the melting point of the plastic.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 5, 2023
    Applicant: Chevron U.S.A. Inc.
    Inventors: Hye-Kyung C. TIMKEN, Tengfei LIU, Joel E. SCHMIDT, Kaustav CHAUDHURI
  • Patent number: 11680210
    Abstract: A process is provided for the catalytic cracking of a glyceride oil feedstock with a catalyst composition containing a deactivated phosphorus-containing ZSM-5 light olefins selective additive.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: June 20, 2023
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Tengfei Liu, Joel Edward Schmidt
  • Publication number: 20230137243
    Abstract: A process is provided for the catalytic cracking of a glyceride oil feedstock with a catalyst composition containing a deactivated phosphorus-containing ZSM-5 light olefins selective additive.
    Type: Application
    Filed: November 4, 2021
    Publication date: May 4, 2023
    Inventors: Tengfei LIU, Joel Edward SCHMIDT
  • Patent number: D1037255
    Type: Grant
    Filed: May 19, 2024
    Date of Patent: July 30, 2024
    Inventor: Tengfei Liu
  • Patent number: D1052539
    Type: Grant
    Filed: March 20, 2023
    Date of Patent: November 26, 2024
    Inventor: Tengfei Liu
  • Patent number: D1053878
    Type: Grant
    Filed: August 16, 2024
    Date of Patent: December 10, 2024
    Inventor: Tengfei Liu
  • Patent number: D1058569
    Type: Grant
    Filed: September 25, 2024
    Date of Patent: January 21, 2025
    Assignee: Shenzhen Xinshe Technology Co., Ltd.
    Inventor: Tengfei Liu