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).
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Patent number: 11173468Abstract: 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: GrantFiled: July 6, 2020Date of Patent: November 16, 2021Assignee: Chevron Phillips Chemical Company LPInventors: Kenneth A. Dooley, Jeffrey S. Lowell, Joseph Curren
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Publication number: 20200330954Abstract: 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: ApplicationFiled: July 6, 2020Publication date: October 22, 2020Applicant: Chevron Phillips Chemical Company LPInventors: Kenneth A. Dooley, Jeffrey S. Lowell, Joseph Curren
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Patent number: 10730032Abstract: 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: GrantFiled: May 16, 2018Date of Patent: August 4, 2020Assignee: Chevron Phillips Chemical Company LPInventors: Kenneth A. Dooley, Jeffrey S. Lowell, Joseph Curren
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Publication number: 20190351386Abstract: 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: ApplicationFiled: May 16, 2018Publication date: November 21, 2019Applicant: Chevron Phillips Chemical Company LPInventors: Kenneth A. Dooley, Jeffrey S. Lowell, Joseph Curren
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Patent number: 10072103Abstract: 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: GrantFiled: July 11, 2017Date of Patent: September 11, 2018Assignee: Chevron Phillips Chemical Company LPInventors: Timothy O. Odi, Ralph Romig, Joseph Curren, Anurag Gupta
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Patent number: 9822193Abstract: 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: GrantFiled: February 10, 2017Date of Patent: November 21, 2017Assignee: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventors: Timothy O. Odi, Ralph Romig, Joseph Curren, Anurag Gupta
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Publication number: 20170306059Abstract: 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: ApplicationFiled: July 11, 2017Publication date: October 26, 2017Applicant: Chevron Phillips Chemical Company LPInventors: Timothy O. Odi, Ralph Romig, Joseph Curren, Anurag Gupta
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Publication number: 20170152328Abstract: 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: ApplicationFiled: February 10, 2017Publication date: June 1, 2017Applicant: Chevron Phillips Chemical Company LPInventors: Timothy O. Odi, Ralph Romig, Joseph Curren, Anurag Gupta