Patents by Inventor Johannis Desiderius Stolwijk

Johannis Desiderius Stolwijk 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).

  • Publication number: 20230124860
    Abstract: A device for filtering and settling entrained particles from a gas feed stream, the device comprising a cylindrical v-wire filter element to filter the entrained particles, a cap located above the v-wire filter element comprising an outer surface, an under surface, and a downward rim attached to a perimeter of the under surface, and an open annulus area located between and in fluid communication with an open top portion of the v-wire filter element and the under surface of the cap.
    Type: Application
    Filed: April 26, 2021
    Publication date: April 20, 2023
    Inventors: Johannis Desiderius STOLWIJK, Julien SIGAUD, Edwin MAAS
  • Patent number: 7452516
    Abstract: The invention relates to a distribution device (1) for distributing liquid over an underlying catalyst bed comprising a horizontal collection tray (2) provided with at least one gas chimney (3) for upward or downward passage of gas and with liquid dosing nozzles (4) for downward passage of liquid, wherein the gas chimney(s) (3) and liquid doing nozzles (4) are separate from each other and do not have the same longitudinal axis, and wherein each liquid dosing nozzle (4) comprises a concentrically arranged liquid passing hole (5) and splash plate (6), wherein the splash plate (6) is located below the liquid passing hole (5) and below the collection tray (2) such that there is a free fall distance for liquid of at least 100 mm between the hole (5) and the splash plate (6). The invention further relates to a reactor for hydroprocessing comprising such distribution device (1), the use of such reactor for hydroprocessing and a process for hydrocracking or hydrotreating in such reactor.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: November 18, 2008
    Assignee: Shell Oil Company
    Inventors: Bastiaan Willem Van Hasselt, Bastiaan Leonard Johan Pieter Kikkert, Johannis Desiderius Stolwijk, Peter Mervyn Wilkinson, Marjanne Clara Zonnevylle