Patents by Inventor Rachel Anna Worthen

Rachel Anna Worthen 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: 9878298
    Abstract: The invention relates to a device and method for distributing a liquid and gas in a multiple-bed downflow reactor, such as a hydrocarbon processing reactor, like a hydrocracker. The device comprises respectively the method uses a distributor device comprising a substantially horizontal collecting tray provided with a central gas passage. Gas passing in downward direction through the central gas passage is forced into a swirling motion by a swirler. This swirling motion has a swirl direction around a vertical swirl axis so that the gas leaves the central gas passage as a swirl. At a location above the collecting tray, a quench fluid is ejected into gas in an ejection direction, which is, viewed in a horizontal plane, at least partly opposite to the swirl direction.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: January 30, 2018
    Inventors: Sujatha Degaleesan, Charles Eduard Dammis Ouwerkerk, Benoit Witkamp, Rachel Anna Worthen
  • Publication number: 20170144122
    Abstract: The invention relates to a device and method for distributing a liquid and gas in a multiple-bed downflow reactor, such as a hydrocarbon processing reactor, like a hydrocracker. The device comprises respectively the method uses a distributor device comprising a substantially horizontal collecting tray provided with a central gas passage. Gas passing in downward direction through the central gas passage is forced into a swirling motion by a swirler. This swirling motion has a swirl direction around a vertical swirl axis so that the gas leaves the central gas passage as a swirl. At a location above the collecting tray, a quench fluid is ejected into gas in an ejection direction, which is, viewed in a horizontal plane, at least partly opposite to the swirl direction.
    Type: Application
    Filed: February 7, 2017
    Publication date: May 25, 2017
    Inventors: Sujatha DEGALEESAN, Charles Eduard Dammis OUWERKERK, Benoit WITKAMP, Rachel Anna WORTHEN
  • Patent number: 9630159
    Abstract: The invention relates to a device and method for distributing a liquid and gas in a multiple-bed downflow reactor, such as a hydrocarbon processing reactor, like a hydrocracker. The device comprises respectively the method uses a distributor device comprising a substantially horizontal collecting tray provided with a central gas passage. Gas passing in downward direction through the central gas passage is forced into a swirling motion by a swirler. This swirling motion has a swirl direction around a vertical swirl axis so that the gas leaves the central gas passage as a swirl. At a location above the collecting tray, a quench fluid is ejected into gas in an ejection direction, which is, viewed in a horizontal plane, at least partly opposite to the swirl direction.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: April 25, 2017
    Assignee: SHELL OIL COMPANY
    Inventors: Sujatha Degaleesan, Charles Eduard Dammis Ouwerkerk, Benoit Witkamp, Rachel Anna Worthen
  • Publication number: 20150285053
    Abstract: A method to provide a fractured subterranean formation is provided, the method including the steps of: providing a wellbore from a surface location to the subterranean formation; applying a friction reduction treatment to at least a portion of an inside surface of a casing; cementing the casing with the applied friction reduction treatment into at least a portion of the wellbore; and pumping into the wellbore a fluid at a pressure that exceeds a fracture pressure of the subterranean formation thereby forming at least one fracture within the subterranean formation wherein the fluid is in contact with at least a portion of the inside surface of the casing with the applied friction reduction treatment.
    Type: Application
    Filed: April 6, 2015
    Publication date: October 8, 2015
    Inventors: Adriana Coromoto PAIVA, George John ZABRAS, Rachel Anna WORTHEN, Deyuan FAN, Jeffrey Maloy NOE
  • Publication number: 20140374316
    Abstract: The invention relates to a device and method for distributing a liquid and gas in a multiple-bed downflow reactor, such as a hydrocarbon processing reactor, like a hydrocracker. The device comprises respectively the method uses a distributor device comprising a substantially horizontal collecting tray provided with a central gas passage. Gas passing in downward direction through the central gas passage is forced into a swirling motion by a swirler. This swirling motion has a swirl direction around a vertical swirl axis so that the gas leaves the central gas passage as a swirl. At a location below the collecting tray, liquid collected on the collecting tray is injected into the swirl in an injection direction, which is, viewed in a horizontal plane, at least partly opposite to the swirl direction.
    Type: Application
    Filed: December 20, 2012
    Publication date: December 25, 2014
    Inventors: Sujatha Degaleesan, Charles Eduard Dammis Ouwerkerk, Benoit Witkamp, Rachel Anna Worthen
  • Publication number: 20140346086
    Abstract: The invention relates to a device and method for distributing a liquid and gas in a multiple-bed downflow reactor, such as a hydrocarbon processing reactor, like a hydrocracker. The device comprises respectively the method uses a distributor device comprising a substantially horizontal collecting tray provided with a central gas passage. Gas passing in downward direction through the central gas passage is forced into a swirling motion by a swirler. This swirling motion has a swirl direction around a vertical swirl axis so that the gas leaves the central gas passage as a swirl. At a location above the collecting tray, a quench fluid is ejected into gas in an ejection direction, which is, viewed in a horizontal plane, at least partly opposite to the swirl direction.
    Type: Application
    Filed: December 20, 2012
    Publication date: November 27, 2014
    Inventors: Sujatha Degaleesan, Charles Eduard Dammis Ouwerkerk, BenoƮt Witkamp, Rachel Anna Worthen
  • Publication number: 20090056696
    Abstract: A flameless combustion heater is described that comprises an oxidation conduit and a fuel conduit having a plurality of centralizers attached to the external wall of the fuel conduit wherein at least one centralizer or portion of a centralizer is angled with respect to the longitudinal axis of the fuel conduit.
    Type: Application
    Filed: July 18, 2008
    Publication date: March 5, 2009
    Inventors: Abdul Wahid MUNSHI, Peter Veenstra, Rachel Anna Worthen
  • Patent number: 6739456
    Abstract: An apparatus for classifying a mixture of fine and coarse particles in a fluid stream by size or density comprises a housing, a boundary layer momentum transfer device, and an inlet flow control mechanism. The housing comprises an inlet, an interior chamber, and a fine particle outlet. The boundary layer momentum transfer device comprises a plurality of disks stacked in spaced, parallel relation in the interior chamber. The disks are rotatable about a disk axis. The disks have respective central openings cooperatively defining a plenum having a closed axial end and an opposing open axial end. The plenum communicates with spaces defined between each adjacent disk to cooperatively define a fine particle flow path from the interior chamber, through the spaces, through the plenum and the open axial end thereof, and to the fine particle outlet. The inlet flow control mechanism communicates with the interior chamber and provides an adjustable inlet flow path into the interior chamber.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: May 25, 2004
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Spyros A. Svoronos, H. Steven Crouch, Hassan El-Sayed El-Shall, Kevin W. Powers, Gary Wayne Scheiffele, Rachel Anna Worthen, Steve Robin Wright
  • Publication number: 20030221996
    Abstract: An apparatus for classifying a mixture of fine and coarse particles in a fluid stream by size or density comprises a housing, a boundary layer momentum transfer device, and an inlet flow control mechanism. The housing comprises an inlet, an interior chamber, and a fine particle outlet. The boundary layer momentum transfer device comprises a plurality of disks stacked in spaced, parallel relation in the interior chamber. The disks are rotatable about a disk axis. The disks have respective central openings cooperatively defining a plenum having a closed axial end and an opposing open axial end. The plenum communicates with spaces defined between each adjacent disk to cooperatively define a fine particle flow path from the interior chamber, through the spaces, through the plenum and the open axial end thereof, and to the fine particle outlet. The inlet flow control mechanism communicates with the interior chamber and provides an adjustable inlet flow path into the interior chamber.
    Type: Application
    Filed: June 3, 2002
    Publication date: December 4, 2003
    Inventors: Spyros A. Svoronos, H. Steven Crouch, Hassan El-Sayed El-Shall, Kevin W. Powers, Gary Wayne Scheiffele, Rachel Anna Worthen, Steven Robin Wright