Patents by Inventor Joseph Curren

Joseph Curren 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).

  • Patent number: 11173468
    Abstract: Systems and methods for improved degassing of polymer flake are provided herein. These systems include a polymerization reactor configured to polymerize one or more olefin monomers and produce a product stream comprising solid polymer flake entrained in a fluid; a flash chamber configured to separate the solid polymer flake from the fluid and to produce a fluid stream and a concentrated stream; and a first degassing chamber configured to separate the concentrated stream by contacting the concentrated stream with a purge fluid comprising one or more light hydrocarbons to produce a partially degassed polymer flake stream and a purge fluid stream.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: November 16, 2021
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Kenneth A. Dooley, Jeffrey S. Lowell, Joseph Curren
  • Publication number: 20200330954
    Abstract: Systems and methods for improved degassing of polymer flake are provided herein. These systems include a polymerization reactor configured to polymerize one or more olefin monomers and produce a product stream comprising solid polymer flake entrained in a fluid; a flash chamber configured to separate the solid polymer flake from the fluid and to produce a fluid stream and a concentrated stream; and a first degassing chamber configured to separate the concentrated stream by contacting the concentrated stream with a purge fluid comprising one or more light hydrocarbons to produce a partially degassed polymer flake stream and a purge fluid stream.
    Type: Application
    Filed: July 6, 2020
    Publication date: October 22, 2020
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Kenneth A. Dooley, Jeffrey S. Lowell, Joseph Curren
  • Patent number: 10730032
    Abstract: Systems and methods for improved degassing of polymer flake are provided herein. These systems include a polymerization reactor configured to polymerize one or more olefin monomers and produce a product stream comprising solid polymer flake entrained in a fluid; a flash chamber configured to separate the solid polymer flake from the fluid and to produce a fluid stream and a concentrated stream; and a first degassing chamber configured to separate the concentrated stream by contacting the concentrated stream with a purge fluid comprising one or more light hydrocarbons to produce a partially degassed polymer flake stream and a purge fluid stream.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: August 4, 2020
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Kenneth A. Dooley, Jeffrey S. Lowell, Joseph Curren
  • Publication number: 20190351386
    Abstract: Systems and methods for improved degassing of polymer flake are provided herein. These systems include a polymerization reactor configured to polymerize one or more olefin monomers and produce a product stream comprising solid polymer flake entrained in a fluid; a flash chamber configured to separate the solid polymer flake from the fluid and to produce a fluid stream and a concentrated stream; and a first degassing chamber configured to separate the concentrated stream by contacting the concentrated stream with a purge fluid comprising one or more light hydrocarbons to produce a partially degassed polymer flake stream and a purge fluid stream.
    Type: Application
    Filed: May 16, 2018
    Publication date: November 21, 2019
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Kenneth A. Dooley, Jeffrey S. Lowell, Joseph Curren
  • Patent number: 10072103
    Abstract: A system and method for startup of a polyolefin reactor temperature control system having a first reactor temperature control path, a second reactor temperature control path, and a shared temperature control path. In some embodiments, during startup the second reactor temperature control path is configured to allow the temperature of a second reactor to rise due to the heat of the exothermic polymerization reaction occurring within the reactor until reaching a predetermined setpoint temperature. In other embodiments, during startup a first reactor temperature control path is configured to include a heat exchanger used as a cooler, and a second reactor temperature control path is configured to include a heat exchanger used as a heater, to raise the temperature of the second reactor until reaching a predetermined setpoint temperature.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: September 11, 2018
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Timothy O. Odi, Ralph Romig, Joseph Curren, Anurag Gupta
  • Patent number: 9822193
    Abstract: A system and method for startup of a polyolefin reactor temperature control system having a first reactor temperature control path, a second reactor temperature control path, and a shared temperature control path. In some embodiments, during startup the second reactor temperature control path is configured to allow the temperature of a second reactor to rise due to the heat of the exothermic polymerization reaction occurring within reactor until reaching a predetermined setpoint temperature. In other embodiments, during startup a first reactor temperature control path is configured to include a heat exchanger used as a cooler, and a second reactor temperature control path is configured to include a heat exchanger used as a heater, to raise the temperature of the second reactor until reaching a predetermined setpoint temperature.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: November 21, 2017
    Assignee: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Timothy O. Odi, Ralph Romig, Joseph Curren, Anurag Gupta
  • Publication number: 20170306059
    Abstract: A system and method for startup of a polyolefin reactor temperature control system having a first reactor temperature control path, a second reactor temperature control path, and a shared temperature control path. In some embodiments, during startup the second reactor temperature control path is configured to allow the temperature of a second reactor to rise due to the heat of the exothermic polymerization reaction occurring within reactor until reaching a predetermined setpoint temperature. In other embodiments, during startup a first reactor temperature control path is configured to include a heat exchanger used as a cooler, and a second reactor temperature control path is configured to include a heat exchanger used as a heater, to raise the temperature of the second reactor until reaching a predetermined setpoint temperature.
    Type: Application
    Filed: July 11, 2017
    Publication date: October 26, 2017
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Timothy O. Odi, Ralph Romig, Joseph Curren, Anurag Gupta
  • Publication number: 20170152328
    Abstract: A system and method for startup of a polyolefin reactor temperature control system having a first reactor temperature control path, a second reactor temperature control path, and a shared temperature control path. In some embodiments, during startup the second reactor temperature control path is configured to allow the temperature of a second reactor to rise due to the heat of the exothermic polymerization reaction occurring within reactor until reaching a predetermined setpoint temperature. In other embodiments, during startup a first reactor temperature control path is configured to include a heat exchanger used as a cooler, and a second reactor temperature control path is configured to include a heat exchanger used as a heater, to raise the temperature of the second reactor until reaching a predetermined setpoint temperature.
    Type: Application
    Filed: February 10, 2017
    Publication date: June 1, 2017
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Timothy O. Odi, Ralph Romig, Joseph Curren, Anurag Gupta