Patents by Inventor Jay Parekh

Jay Parekh 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: 20240101913
    Abstract: Provided is a hydrocracking process with a recycle loop for converting a petroleum feed to lower boiling products, which process comprises reacting a stream over a non-zeolite noble metal catalyst at a temperature of about 650° F. (343° C.) or less in a reactor positioned in the recycle loop of the hydrocracking reactor.
    Type: Application
    Filed: December 29, 2021
    Publication date: March 28, 2024
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Ling JIAO, Bi-Zheng ZHAN, Don BUSHEE, Theodorus Ludovicus Michael MAESEN, Hye-Kyung TIMKEN, Richard DUTTA, Jay PAREKH
  • Publication number: 20240076563
    Abstract: Provided in one embodiment is an improved and more flexible process for preparing a finished base oil or a white oil product comprising passing a dewaxed base oil product to a distillation column and separating the dewaxed base oil product into fuel and base oil product streams. The base oil product streams are tested to determine if they meet desired specifications. Base oil product streams that meet the desired minimum base oil specifications are passed to a hydrofinishing reactor to prepare a white oil product, or passed to direct sale.
    Type: Application
    Filed: December 24, 2021
    Publication date: March 7, 2024
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Kenneth John PEINADO, Jay PAREKH, Jifei JIA, Yihua ZHANG, Guan-Dao Lei, Guang ZHANG
  • Publication number: 20240059987
    Abstract: Provided is a process for preparing base oil from a waxy hydrocarbon feedstock by contacting the hydrocarbon feedstock in a hydroisomerization zone under hydroisomerization conditions. The reaction is in the presence of hydrogen and an inert gas, with the total pressure in the hydroisomerization zone being at least 400 psig. A product from the hydroisomerization zone is collected and separated into base oil products and fuel products. The inert gas can comprise any suitable inert gas, but is generally nitrogen, methane or argon. Nitrogen is used in one embodiment.
    Type: Application
    Filed: December 24, 2021
    Publication date: February 22, 2024
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Kenneth John PEINADO, Jifei JIA, Guan-Dao LEI, Jay PAREKH, Yihua ZHANG
  • Patent number: 11873455
    Abstract: Provided is a process for preparing base oil from a waxy hydrocarbon feedstock by contacting the hydrocarbon feedstock in a hydroisomerization zone under hydroisomerization conditions. The reaction is in the presence of hydrogen and an inert gas, with the total pressure in the hydroisomerization zone being at least 400 psig. A product from the hydroisomerization zone is collected and separated into base oil products and fuel products. The inert gas can comprise any suitable inert gas, but is generally nitrogen, methane or argon. Nitrogen is used in one embodiment.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: January 16, 2024
    Assignee: Chevron U.S.A. Inc.
    Inventors: Kenny Peinado, Jifei Jia, Guan-Dao Lei, Jay Parekh, Yihua Zhang
  • Publication number: 20230272291
    Abstract: Provided is a novel catalyst for use in the second stage of a two-stage hydrocracking process. The present process comprises hydrocracking a hydrocarbon feed in a first stage. The catalyst in the first stage is a conventional hydrocracking catalyst. The product from the first stage can then be transferred to a second hydrocracking stage. The catalyst used in the second stage of the present hydrocracking process comprises a base impregnated with metals from Group 6 and Groups 8 through 10 of the Periodic Table, and an organic acid. The base of the catalyst used in the present second hydrocracking stage comprises alumina, an amorphous silica-alumina (ASA) material, and a USY zeolite. Improved naphtha production is achieved.
    Type: Application
    Filed: July 23, 2021
    Publication date: August 31, 2023
    Inventors: Jifei JIA, Bi-Zeng ZHAN, Wai Seung William LOUIE, Arun ARORA, Jay PAREKH
  • Publication number: 20230093609
    Abstract: A multifunction electric vehicle charging platform is provided. The platform includes a housing and at least one display unit placed in the housing. The platform further includes a content management unit configured to control receiving content and display the content on the at least one display unit. The platform includes a charging unit configured to be connected to at least one light electric vehicle (LEV) and to provide power to the at least one LEV. The platform includes at least one sensor attached to the housing and configured to collect data associated with the at least one LEV. The platform further includes a communication unit configured to communicate with a backend system.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 23, 2023
    Inventors: Keith Edward Moravick, Ken Wolz, Bradlee Van Pelt, Leandro Vera, Jay Parekh, Douglas Ralph Schaller
  • Patent number: 11441085
    Abstract: Provided in one embodiment is an improved and more flexible process for preparing a finished base oil or a white oil product comprising passing a dewaxed base oil product to a distillation column and separating the dewaxed base oil product into fuel and base oil product streams. The base oil product streams are tested to determine if they meet desired specifications. Base oil product streams that meet the desired minimum base oil specifications are passed to a hydrofinishing reactor to prepare a white oil product, or passed to direct sale.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: September 13, 2022
    Assignee: Chevron U.S.A. Inc.
    Inventors: Kenny Peinado, Jay Parekh, Jifei Jia, Yihua Zhang, Guan-Dao Lei, Guang Zhang
  • Patent number: 11396631
    Abstract: A process for preparing a base oil from a waxy hydrocarbon feedstock is provided. The process comprises passing the hydrocarbon feedstock to a distillation column prior to dewaxing in order to recover a heavy wax cut. The heavy wax is then hydrocracked to lower boiling compounds which can be better isomerized to a base oil with an acceptable cloud point. The base oil yield is also increased.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: July 26, 2022
    Assignee: Chevron U.S.A. Inc.
    Inventors: Jay Parekh, Jifei Jia, Guan-Dao Lei, Kenny Peinado, Yihua Zhang, Shanying Lee
  • Publication number: 20220204874
    Abstract: Provided in one embodiment is an improved and more flexible process for preparing a finished base oil or a white oil product comprising passing a dewaxed base oil product to a distillation column and separating the dewaxed base oil product into fuel and base oil product streams. The base oil product streams are tested to determine if they meet desired specifications. Base oil product streams that meet the desired minimum base oil specifications are passed to a hydrofinishing reactor to prepare a white oil product, or passed to direct sale.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Applicant: Chevron U.S.A. Inc.
    Inventors: Kenny Peinado, Jay Parekh, Jifei Jia, Yihua Zhang, Guan-Dao Lei, Guang Zhang
  • Publication number: 20220204876
    Abstract: Provided is a process for preparing base oil from a waxy hydrocarbon feedstock by contacting the hydrocarbon feedstock in a hydroisomerization zone under hydroisomerization conditions. The reaction is in the presence of hydrogen and an inert gas, with the total pressure in the hydroisomerization zone being at least 400 psig. A product from the hydroisomerization zone is collected and separated into base oil products and fuel products. The inert gas can comprise any suitable inert gas, but is generally nitrogen, methane or argon. Nitrogen is used in one embodiment.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Applicant: Chevron U.S.A. Inc.
    Inventors: Kenny Peinado, Jifei Jia, Guan-Dao Lei, Jay Parekh, Yihua Zhang
  • Publication number: 20220204875
    Abstract: A process for preparing a base oil from a waxy hydrocarbon feedstock is provided. The process comprises passing the hydrocarbon feedstock to a distillation column prior to dewaxing in order to recover a heavy wax cut. The heavy wax is then hydrocracked to lower boiling compounds which can be better isomerized to a base oil with an acceptable cloud point. The base oil yield is also increased.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Applicant: Chevron U.S.A. Inc.
    Inventors: Jay Parekh, Jifei Jia, Guan-Dao Lei, Kenny Peinado, Yihua Zhang, Shanying Lee
  • Publication number: 20220204873
    Abstract: Provided is a hydrocracking process with a recycle loop for converting a petroleum feed to lower boiling products, which process comprises reacting a stream over a non-zeolite noble metal catalyst at a temperature of about 650° F. (343° C.) or less in a reactor positioned in the recycle loop of the hydrocracking reactor.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Applicant: Chevron U.S.A. Inc.
    Inventors: Ling Jiao, Bi-Zeng Zhan, Don Bushee, Theodorus Ludovicus Michael Maesen, Hye-Kyung Timken, Richard Dutta, Jay Parekh
  • Publication number: 20080283444
    Abstract: This invention relates to a multi-stage process for hydroprocessing gas oils. Preferably, each stage possesses at least one hydrocracking zone. The second stage and any subsequent stages possess an environment having a low heteroatom content. Light products, such as naphtha, kerosene and diesel, may be recycled from fractionation (along with light products from other sources) to the second stage (or a subsequent stage) in order to produce a larger yield of lighter products, such as gas and naphtha. Pressure, in the zone or zones subsequent to the initial zone is from 500 to 1000 psig lower than the pressure in the initial zone, in order to provide cost savings and minimize overcracking.
    Type: Application
    Filed: June 12, 2008
    Publication date: November 20, 2008
    Applicant: CHEVRON U.S.A. INC.
    Inventors: H. Alex Yoon, Jay Parekh, Arthur J. Dahlberg
  • Publication number: 20050103682
    Abstract: This invention relates to a multi-stage process for hydroprocessing gas oils. Preferably, each stage possesses at least one hydrocracking zone. The second stage and any subsequent stages possess an environment having a low heteroatom content. Light products, such as naphtha, kerosene and diesel, may be recycled from fractionation (along with light products from other sources) to the second stage (or a subsequent stage) in order to produce a larger yield of lighter products, such as gas and naphtha. Pressure in the zone or zones subsequent to the initial zone is from 500 to 1000 psig lower than the pressure in the initial zone, in order to provide cost savings and minimize overcracking.
    Type: Application
    Filed: August 19, 2004
    Publication date: May 19, 2005
    Inventors: H. Yoon, Jay Parekh, Arthur Dahlberg
  • Publication number: 20030221990
    Abstract: This invention relates to a multi-stage process for hydroprocessing gas oils. Preferably, each stage possesses at least one hydrocracking zone. The second stage and any subsequent stages possess an environment having a low heteroatom content. Light products, such as naphtha, kerosene and diesel, may be recycled from fractionation (along with light products from other sources) to the second stage (or a subsequent stage) in order to produce a larger yield of lighter products, such as gas and naphtha. Subsequent zones are maintained at a lower pressure than that of the first zone, thereby reducing operating expenses.
    Type: Application
    Filed: June 4, 2002
    Publication date: December 4, 2003
    Inventors: H. Alex Yoon, Jay Parekh, Arthur J. Dahlberg