Patents by Inventor Paul S. Nishimura

Paul S. Nishimura 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).

  • Recessed gas feed distributor process for FCC riser
    Patent number: 9309468
    Abstract: An FCC process may include a distributor disposed in a recess in a wall of the riser for distributing gaseous hydrocarbon feed to a riser. The distributor may be shielded from upwardly flowing catalyst by a shield. An array of nozzles from the distributor may extend through openings in the shield.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: April 12, 2016
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Paul S. Nishimura
  • Process for cracking a hydrocarbon feed
    Patent number: 9227167
    Abstract: An embodiment can be a process for catalytically cracking a hydrocarbon feed. The process can include providing the hydrocarbon feed including an effective amount of one or more C4-C6 olefins for producing at least one light olefin to a riser. Typically, at least about 99%, by mole, of the hydrocarbon feed is a gas.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: January 5, 2016
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Robert L. Mehlberg, Keith A. Couch, Paul S. Nishimura
  • Dual Riser Vortex Separation System
    Publication number: 20150005553
    Abstract: Vortex separation technology quickly and efficiently separates vapor from catalyst from two or more risers, in a singular separation vessel, controlling residence time and improving product conversion. One riser enters concentrically through the reactor vessel, then through the center of the separation vessel, ending in horizontal swirl arms. The second and any additional risers run external to the reactor vessel. The external risers transition to a 90° elbow and tangentially enter the reactor vessel, and then the separation vessel.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 1, 2015
    Applicant: UOP LLC
    Inventors: Paolo Palmas, Paul S. Nishimura
  • Recessed gas feed distributor apparatus for FCC riser
    Patent number: 8282885
    Abstract: An FCC apparatus may include a distributor disposed in a recess in a wall of the riser for distributing gaseous hydrocarbon feed to a riser. The distributor may be shielded from upwardly flowing catalyst by a shield. An array of nozzles from the distributor may extend through openings in the shield.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: October 9, 2012
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Paul S. Nishimura
  • Process for regenerating catalyst
    Patent number: 8173567
    Abstract: Disclosed is a catalyst distributor and process for spreading catalyst over a regenerator vessel. Nozzles disposed angular to a header of the distributor spread catalyst throughout a full cross section of the catalyst bed.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: May 8, 2012
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Lawrence A. Lacijan, Sujay R. Krishnamurthy, Mohammad-Reza Mostofi-Ashtiani, Paul S. Nishimura, Lisa M. Wolschlag
  • RECESSED GAS FEED DISTRIBUTOR APPARATUS FOR FCC RISER
    Publication number: 20110318235
    Abstract: An FCC apparatus may include a distributor disposed in a recess in a wall of the riser for distributing gaseous hydrocarbon feed to a riser. The distributor may be shielded from upwardly flowing catalyst by a shield. An array of nozzles from the distributor may extend through openings in the shield.
    Type: Application
    Filed: June 29, 2010
    Publication date: December 29, 2011
    Applicant: UOP LLC
    Inventors: Paolo Palmas, Paul S. Nishimura
  • RECESSED GAS FEED DISTRIBUTOR PROCESS FOR FCC RISER
    Publication number: 20110315602
    Abstract: An FCC process may include a distributor disposed in a recess in a wall of the riser for distributing gaseous hydrocarbon feed to a riser. The distributor may be shielded from upwardly flowing catalyst by a shield. An array of nozzles from the distributor may extend through openings in the shield.
    Type: Application
    Filed: June 29, 2010
    Publication date: December 29, 2011
    Applicant: UOP LLC.
    Inventors: Paolo Palmas, Paul S. Nishimura
  • Apparatus for regenerating catalyst
    Patent number: 7947230
    Abstract: Disclosed is a catalyst distributor and process for spreading catalyst over a regenerator vessel. Nozzles disposed angular to a header of the distributor spread catalyst throughout a full cross section of the catalyst bed.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: May 24, 2011
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Lawrence A. Lacijan, Sujay R. Krishnamurthy, Mohammad-Reza Mostofi-Ashtiani, Paul S. Nishimura, Lisa M. Wolschlag
  • Process for Regenerating Catalyst
    Publication number: 20100152020
    Abstract: Disclosed is a catalyst distributor and process for spreading catalyst over a regenerator vessel. Nozzles disposed angular to a header of the distributor spread catalyst throughout a full cross section of the catalyst bed.
    Type: Application
    Filed: December 16, 2008
    Publication date: June 17, 2010
    Inventors: Paolo Palmas, Lawrence A. Lacijan, Sujay R. Krishnamurthy, Mohammad-Reza Mostofi-Ashtiani, Paul S. Nishimura, Lisa M. Wolschlag
  • Apparatus for Regenerating Catalyst
    Publication number: 20100150788
    Abstract: Disclosed is a catalyst distributor and process for spreading catalyst over a regenerator vessel. Nozzles disposed angular to a header of the distributor spread catalyst throughout a full cross section of the catalyst bed.
    Type: Application
    Filed: December 16, 2008
    Publication date: June 17, 2010
    Inventors: Paolo Palmas, Lawrence A. Lacijan, Sujay R. Krishnamurthy, Mohammad-Reza Mostofi-Ashtiani, Paul S. Nishimura, Lisa M. Wolschlag