Patents by Inventor Steven J. Lesniak

Steven J. Lesniak 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).

  • Scale collection device for downflow reactors
    Patent number: 11298669
    Abstract: The invention involves a scale collection device that is located within downflow reactor head for removing solids from feed streams to increase reactor operating cycle time without impact on effective reactor space for catalyst loading. More particularly, a filtering zone is located in an upper portion of a reactor vessel above a rough liquid distribution tray and a distribution tray.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: April 12, 2022
    Assignee: UOP LLC
    Inventors: Zhanping Xu, Steven J. Lesniak, Robert L. Bunting, Jr.
  • Methods and apparatus for fluid contacting in a downflow vessel
    Patent number: 10828616
    Abstract: A contacting device and method are presented for the collection, contacting, and distribution of fluids between particulate beds of a downflow vessel, which may operate in co-current flow. By one approach, the contacting device includes a liquid collection tray, a mixing channel in fluid communication with the liquid collection tray, and a liquid distribution zone.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: November 10, 2020
    Assignee: UOP LLC
    Inventors: Zhanping Xu, Christopher Naunheimer, Pengfei Chen, Steven J. Lesniak
  • Scale collection device for downflow reactors
    Patent number: 10549249
    Abstract: The invention involves a scale collection device that is located within downflow reactor head for removing solids from feed streams to increase reactor operating cycle time without impact on effective reactor space for catalyst loading. More particularly, a filtering zone is located in an upper portion of a reactor vessel above a rough liquid distribution tray and a distribution tray.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: February 4, 2020
    Assignee: UOP LLC
    Inventors: Zhanping Xu, Steven J. Lesniak, Robert L. Bunting, Jr.
  • Scale collection device for downflow reactors
    Patent number: 10537866
    Abstract: The invention involves a scale collection device that is located within downflow reactor head for removing solids from feed streams to increase reactor operating cycle time without impact on effective reactor space for catalyst loading. More particularly, a filtering zone is located in an upper portion of a reactor vessel above a rough liquid distribution tray and a distribution tray.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: January 21, 2020
    Assignee: UOP LLC
    Inventors: Robert L. Bunting, Jr., Steven J. Lesniak, Zhanping Xu
  • Methods for fluid contacting in a downflow vessel
    Patent number: 10376856
    Abstract: A contacting device and method are presented for the collection, contacting, and distribution of fluids between particulate beds of a downflow vessel, which may operate in co-current flow. By one approach, the contacting device includes a liquid collection tray, a mixing channel in fluid communication with the liquid collection tray, and a liquid distribution zone.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: August 13, 2019
    Assignee: UOP LLC
    Inventors: Zhanping Xu, Christopher Naunheimer, Pengfei Chen, Peter H. Shafe, Steven J. Lesniak
  • SCALE COLLECTION DEVICE FOR DOWNFLOW REACTORS
    Publication number: 20190232243
    Abstract: The invention involves a scale collection device that is located within downflow reactor head for removing solids from feed streams to increase reactor operating cycle time without impact on effective reactor space for catalyst loading. More particularly, a filtering zone is located in an upper portion of a reactor vessel above a rough liquid distribution tray and a distribution tray.
    Type: Application
    Filed: December 14, 2018
    Publication date: August 1, 2019
    Inventors: Robert L. Bunting, JR., Steven J. Lesniak, Zhanping Xu
  • SCALE COLLECTION DEVICE FOR DOWNFLOW REACTORS
    Publication number: 20190232244
    Abstract: The invention involves a scale collection device that is located within downflow reactor head for removing solids from feed streams to increase reactor operating cycle time without impact on effective reactor space for catalyst loading. More particularly, a filtering zone is located in an upper portion of a reactor vessel above a rough liquid distribution tray and a distribution tray.
    Type: Application
    Filed: December 14, 2018
    Publication date: August 1, 2019
    Inventors: Zhanping Xu, Steven J. Lesniak, Robert L. Bunting, JR.
  • SCALE COLLECTION DEVICE FOR DOWNFLOW REACTORS
    Publication number: 20190232199
    Abstract: The invention involves a scale collection device that is located within downflow reactor head for removing solids from feed streams to increase reactor operating cycle time without impact on effective reactor space for catalyst loading. More particularly, a filtering zone is located in an upper portion of a reactor vessel above a rough liquid distribution tray and a distribution tray.
    Type: Application
    Filed: December 14, 2018
    Publication date: August 1, 2019
    Inventors: Zhanping Xu, Steven J. Lesniak, Robert L. Bunting, JR.
  • METHODS AND APPARATUS FOR FLUID CONTACTING IN A DOWNFLOW VESSEL
    Publication number: 20190105629
    Abstract: A contacting device and method are presented for the collection, contacting, and distribution of fluids between particulate beds of a downflow vessel, which may operate in co-current flow. By one approach, the contacting device includes a liquid collection tray, a mixing channel in fluid communication with the liquid collection tray, and a liquid distribution zone.
    Type: Application
    Filed: July 13, 2018
    Publication date: April 11, 2019
    Inventors: Zhanping Xu, Christopher Naunheimer, Pengfei Chen, Steven J. Lesniak
  • METHODS FOR FLUID CONTACTING IN A DOWNFLOW VESSEL
    Publication number: 20190030495
    Abstract: A contacting device and method are presented for the collection, contacting, and distribution of fluids between particulate beds of a downflow vessel, which may operate in co-current flow. By one approach, the contacting device includes a liquid collection tray, a mixing channel in fluid communication with the liquid collection tray, and a liquid distribution zone.
    Type: Application
    Filed: July 13, 2018
    Publication date: January 31, 2019
    Inventors: Zhanping Xu, Christopher Naunheimer, Pengfei Chen, Peter H. Shafe, Steven J. Lesniak