Patents Assigned to Chevron U.S.A. Inc.
  • 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: 20230140581
    Abstract: The present disclosure refers in one embodiment to processes for making and transporting clean hydrogen fuel. The processes may involve hydrotreating, hydrocracking, or both hydrotreating and hydrocracking an aromatic feedstock under conditions to obtain a liquid hydrocarbon fuel. The liquid hydrocarbon fuel is hydrogenated to obtain a hydrogen-rich fuel that is transported to a dehydrogenation facility that may also be at or near a hydrogen station. The hydrogen-rich fuel is used to obtain hydrogen and a second liquid hydrocarbon fuel.
    Type: Application
    Filed: November 1, 2021
    Publication date: May 4, 2023
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Bi-Zeng Zhan, Steven Xuqi Song, Trenton Otto, Yaofan Yi
  • Patent number: 11639653
    Abstract: A system for fracturing multiple wellbores on a multi-well pad can include a missile that receives high-pressure fracturing fluid from a plurality of pump truck. The system can also include a main manifold that receives the high-pressure fracturing fluid from the missile, where the main manifold includes multiple valves and multiple output channels, where each of the valves are operated between an open position and a closed position. The system can further include multiple wellbores including a first wellbore, a second wellbore, and a third wellbore, where the wellbores are connected to the output channels of the main manifold. The valves of the main manifold can be operated to enable simultaneous flow of the high-pressure fracturing fluid to the first wellbore, the second wellbore, and the third wellbore so that the first wellbore, the second wellbore, and the third wellbore are fractured simultaneously.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: May 2, 2023
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Matthew Scott Bolen, Andrew Thomas Ruhl, Seung Jin Han, Kristen Anne Belcourt, Amos Sunghyun Kim, Nicholas Andrew Zerante, Ross Gerard Cazenave, Jay Patrick Painter
  • Patent number: 11639472
    Abstract: Provided in one embodiment is a continuous process for converting waste plastic comprising polyethylene and/or polypropylene into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene, polypropylene, or a mixture thereof, and passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a pyrolysis oil comprising a naphtha, diesel and heavy fractions, and char. The pyrolysis oil, or at least a fraction, is passed to a filtration/metal oxide treatment, with the treated product passed to a refinery FCC unit. A liquid petroleum gas C3 olefin/paraffin mixture fraction is recovered from the FCC unit, as well as a C4 olefin/paraffin mixture fraction. The liquid petroleum gas C3 olefin/paraffin mixture fraction is passed to a steam cracker for ethylene production.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: May 2, 2023
    Assignee: Chevron U.S.A. Inc.
    Inventor: Hye-Kyung Timken
  • Patent number: 11638908
    Abstract: The present disclosure is directed to a potassium-form MER framework type zeolite, a MER framework type zeolite having a stick-like morphology, wherein the potassium is present as K+ in extra-framework locations. The zeolite is essentially free of an extra-framework cation other than potassium.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: May 2, 2023
    Assignee: Chevron U.S.A. Inc.
    Inventor: Dan Xie
  • Patent number: 11639475
    Abstract: A hydrocracking process for converting a petroleum feed to lower boiling products. The process comprises hydrotreating a petroleum feed in a pre-treating zone in the presence of hydrogen to produce a hydrotreated effluent stream comprising a liquid product. At least a portion of the hydrotreated effluent stream is then passed to an MMS catalyst zone, and then to a hydrocracking zone. In one embodiment, the MMS catalyst zone comprises a self-supported multi-metallic catalyst prepared from a precursor in the oxide or hydroxide form. The percentage work of the hydrotreating in the pre-treating zone is maintained at a level of at least 56%.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: May 2, 2023
    Assignee: Chevron U.S.A. Inc.
    Inventors: Varut Komalarajun, Theodorus Ludovicus Michael Maesen
  • Patent number: 11639320
    Abstract: A process for producing renewable distillate-range hydrocarbons is provided. The process includes dehydrating a renewable C2-C6 alcohol feedstock to produce an olefin, oligomerizing the olefin the presence of a halometallate ionic liquid catalyst to produce an oligomer product and hydrogenating the oligomer product or fractions thereof to produce saturated distillate-range hydrocarbons.
    Type: Grant
    Filed: May 23, 2022
    Date of Patent: May 2, 2023
    Assignee: Chevron U.S.A. Inc.
    Inventors: Bong Kyu Chang, Hye-Kyung Cho Timken, Michelle K. Young
  • Patent number: 11638909
    Abstract: The present disclosure is directed to processes for the selective separation of carbon dioxide (CO2) from multi-component feedstreams containing CO2. The processes use a potassium-form MER framework type zeolite having a stick-like morphology. The potassium is present in the zeolite as K+ in extra-framework locations, and the zeolite is essentially free of an extra-framework cation other than potassium.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: May 2, 2023
    Assignee: Chevron U.S.A. Inc.
    Inventors: Joshua Allen Thompson, Dan Xie
  • Patent number: 11634970
    Abstract: Disclosed are systems and methods for thermal management of subsea conduits such as jumpers that provide the ability to alternate between cooling and heat retention of production fluids within the conduit as needed depending on the phase of operation. Adjustable insulation elements are provided on the conduits so that convective heat transfer between surrounding seawater and the conduit can be allowed or reduced. A control system can activate an alarm indicating the need to adjust the insulation depending on the temperature and/or flow rate of fluids in the conduit. Conventional conduits can be retrofitted by adding adjustable insulation elements to enable thermal management.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: April 25, 2023
    Assignee: Chevron U.S.A. Inc.
    Inventors: Antonio C. F. Critsinelis, Sid Mebarkia, Michelle A. Wise, Yesudas J. Manimala, William C. Hughes, Steven W. Cochran, Edgar Uribe, Jason D. Garcia
  • Patent number: 11629576
    Abstract: Methods of drilling two wells, wherein the two wells are drilled such that the toe of the lateral portion of one well is in proximity to the heel of the lateral portion of the other well. Production from the wells can be improved by a process wherein the formation about the wells is first fractured at the toe of each lateral portion, then fractured along the middle section of each lateral portion, and, lastly, at the heel section of each lateral portion of the wells.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: April 18, 2023
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Samiha Said Elsayed Morsy, Folly Israel Yeke Kouevi
  • Patent number: 11628429
    Abstract: An aluminum-rich molecular sieve material of MFS framework type, designated SSZ-123, is provided. SSZ-123 can be synthesized using 1-ethyl-1-[5-(triethylammonio)pentyl]piperidinium cations as a structure directing agent. SSZ-123 may be used in organic compound conversion and/or sorptive processes.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: April 18, 2023
    Assignee: CHEVRON U.S.A. INC.
    Inventor: Dan Xie
  • Patent number: 11621059
    Abstract: A method is provided for predicting conjunct polymer concentration in spent ionic liquid during a continuous hydrocarbon conversion process.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: April 4, 2023
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Toni Zhang Miao, Huping Luo, Hye-Kyung Cho Timken, Eddy Lee, Bong-Kyu Chang
  • Patent number: 11621789
    Abstract: Magneto-quasistatic signals may be used to enable under-liquid communication between devices. A magneto-quasistatic signal transmitter of an under-liquid device may transmit a magneto-quasistatic signal conveying communication data through liquid. A magneto-quasistatic signal receiver of another under-liquid device may receive the magneto-quasistatic signal and extract the communication data from the magneto-quasistatic signal. The under-liquid device that received the magneto-quasistatic signal may use the communication data, store the communicate data, and/or relay the communication data (e.g., to another under-liquid device, to an above-liquid device) using another magneto-quasistatic signal.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: April 4, 2023
    Assignees: Chevron U.S.A. Inc., California Institute of Technology
    Inventors: Robert Kwan Meng Seah, Hailing An, Baha Tulu Tanju, Darmindra Arumugam
  • Publication number: 20230094207
    Abstract: Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization or for normal alpha olefins. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and then passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a naphtha/diesel fraction, a heavy fraction, and char. The naphtha/diesel fraction is passed to a crude unit in a refinery from which is recovered a straight run naphtha fraction (C5-C8) or a propane/butane (C3-C4) fraction. The straight run naphtha fraction, or propane and butane (C3-C4) fraction, is passed to a steam cracker for ethylene production. The ethylene is converted to normal alpha olefin and/or polyethylene. Also, a heavy fraction from the pyrolysis reactor can be combined with a heavy fraction of normal alpha olefin stream recovered from the steam cracker.
    Type: Application
    Filed: October 30, 2022
    Publication date: March 30, 2023
    Applicant: Chevron U.S.A. Inc.
    Inventor: Hye-Kyung Timken
  • Patent number: 11614331
    Abstract: Magneto-electric quasistatic (MEQS) field may be used to track positions of persons and/or objects inside metallic environments. A magneto-electric quasistatic field generator may generate a magneto-electric quasistatic field inside a metallic environment. A magneto-electric quasistatic field detector inside the metallic environment may detect the magneto-electric quasistatic field and generate output signals conveying characteristics of the magneto-electric quasistatic field. The relative position of the magneto-electric quasistatic field detector with respect to the magneto-electric quasistatic field generator may be determined based on the output signals. The position of the magneto-electric quasistatic field detector/generator and/or the position of a person/object carrying the magneto-electric quasistatic field detector/generator may be tracked using the relative position of the magneto-electric quasistatic field detector with respect to the magneto-electric quasistatic field generator.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: March 28, 2023
    Assignees: Chevron U.S.A. Inc., California Institute of Technology
    Inventors: Robert Kwan Meng Seah, Hailing An, Darmindra Arumugam
  • Publication number: 20230090561
    Abstract: The present disclosure provides a hydroxyaromatic product. The alkyl hydroxyaromatic compound having a structure given by where R is a hydroxyaromatic group, X is hydrogen or methyl group and where n is 1 or greater.
    Type: Application
    Filed: February 11, 2021
    Publication date: March 23, 2023
    Applicants: CHEVRON ORONITE COMPANY LLC, CHEVRON U.S.A. INC.
    Inventors: Andrew R. GIBBS, Sven Ivar HOMMELTOFT
  • Patent number: 11607628
    Abstract: A sand handling system having, for example, one to three sand separators are configured to be operatively connected to a well and an inlet of a common dumping vessel. Advantageously, the dumping vessel has a sensor to measure an amount of sand in the dumping vessel and provide a signal to a programmable controller which is arranged to dump the dumping vessel when a specified amount of sand is in the dumping vessel. The system automates the sand handling process and also measures and records data associated with a number of flowback parameters. The data can then be used in well design to improve oil and/or gas production, lessen sand production, reduce well damage and/or equipment corrosion due to, for example, sand.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: March 21, 2023
    Assignee: CHEVRON U.S.A. Inc.
    Inventors: Koby Byron Carlson, Matthew Allen Kieke, Shawn Marshall Woodard, Kenneth Paul Hagar
  • Patent number: 11609355
    Abstract: Embodiments of generating a self-consistent earth model are provided. One embodiment comprises: a) building a structured geologic; b) generating a mineralogy volume; c) generating a porosity volume and a density volume; d) generating a pressure volume; e) generating a geophysical property volume comprising a P-wave velocity volume and a S-wave velocity volume, a relationship between P-wave velocity and S-wave velocity, or any combination thereof; f) generating mechanical elastic properties based on (i) a static to dynamic elastic property relationship and (ii) the geophysical property volume, the relationship between P-wave velocity and S-wave velocity, or any combination thereof; and g) performing mechanical earth modeling using the mechanical elastic properties, the density volume, and the pressure volume to generate a self-consistent earth model.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: March 21, 2023
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Shauna Kaye Oppert, Jose I. Adachi, James E. Sabolcik
  • Publication number: 20230079004
    Abstract: Provided in one embodiment 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 passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a pyrolysis oil and optionally wax comprising a naphtha/diesel and heavy fraction, and char. The pyrolysis oil and wax is passed to a refinery FCC unit from which a liquid petroleum gas C3-C5 olefin/paraffin mixture fraction is recovered. The liquid petroleum gas C3-C5 olefin/paraffin mixture fraction is passed to a refinery alkylation unit, with a propane and butane fraction recovered from the alkylation unit. The propane and butane fraction is then passed to a steam cracker for ethylene production.
    Type: Application
    Filed: October 30, 2022
    Publication date: March 16, 2023
    Applicant: Chevron U.S.A. Inc.
    Inventor: Hye-Kyung Timken
  • Publication number: 20230085249
    Abstract: A continuous process for converting waste plastic into recycle for polypropylene polymerization is provided. The process integrates refinery operations to provide an effective and efficient recycle process. The process comprises selecting waste plastics containing polyethylene and polypropylene and then passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a naphtha/diesel fraction, a heavy fraction, and char. The naphtha/diesel fraction is passed to a refinery FCC unit, from which is recovered a liquid petroleum gas C3 olefin/paraffin mixture. The C3 paraffins and C3 olefins are separated into different fractions with a propane/propylene splitter. The C3 olefin fraction is passed to a propylene polymerization reactor.
    Type: Application
    Filed: October 30, 2022
    Publication date: March 16, 2023
    Applicant: Chevron U.S.A. Inc.
    Inventor: Hye-Kyung Timken