Patents by Inventor Steven Alden

Steven Alden 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: 9545649
    Abstract: Processes for shutting down a hydroprocessing reactor and for removing catalyst from the reactor may comprise shutting off hydrocarbon feed to the reactor, stripping hydrocarbons from the catalyst, cooling the reactor to a first threshold reactor temperature, purging the reactor with N2 gas, introducing water into the reactor, and dumping the catalyst from the reactor, wherein the first threshold reactor temperature may be substantially greater than 200° F. In an embodiment, the water may be introduced into the reactor via a quench gas distribution system when the reactor is at a second threshold reactor temperature not greater than 200° F. to cool the reactor to a third threshold reactor temperature not greater than 120° F.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: January 17, 2017
    Assignee: Chevron U.S.A. Inc.
    Inventors: Jeff William Johns, Steven Alden Souers, Douglas Gayle McDaniel, David Lawrence Cooke, David Michael Bosi
  • Publication number: 20160346815
    Abstract: Processes for shutting down a hydroprocessing reactor and for removing catalyst from the reactor may comprise shutting off hydrocarbon feed to the reactor, stripping hydrocarbons from the catalyst, cooling the reactor to a first threshold reactor temperature, purging the reactor with N2 gas, introducing water into the reactor, and dumping the catalyst from the reactor, wherein the first threshold reactor temperature may be substantially greater than 200° F. In an embodiment, the water may be introduced into the reactor via a quench gas distribution system when the reactor is at a second threshold reactor temperature not greater than 200° F. to cool the reactor to a third threshold reactor temperature not greater than 120° F.
    Type: Application
    Filed: May 27, 2015
    Publication date: December 1, 2016
    Inventors: Jeff Jeff Johns, Steven Alden Souers, Douglas Gayle McDaniel, David Lawrence Cooke, David Michael Bosi
  • Patent number: 8597595
    Abstract: Systems and apparatus for mixing, cooling, and distributing multiphase fluid mixtures within a reactor, wherein reactor internal apparatus of the present invention provides not only improved fluid mixing and distribution to each underlying catalyst bed surface, but also offers other advantages including: decreased mixing tray height; easier maintenance, assembly and disassembly; and decreased amounts of fabrication material. In an embodiment, fluid may be evenly distributed to a catalyst bed from a fluid distribution unit comprising a nozzle tray including a plurality of nozzles, wherein the nozzles include at least one liquid inlet disposed tangentially to an inner surface of the nozzle.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: December 3, 2013
    Assignee: Chevron U.S.A. Inc.
    Inventors: Zackory S. Akin, Craig R. Boyak, Abdenour Kemoun, Ralph Evan Killen, Krishniah Parimi, Steven Xuqi Song, Steven Alden Souers
  • Publication number: 20130082125
    Abstract: Systems and apparatus for mixing, cooling, and distributing multiphase fluid mixtures within a reactor, wherein reactor internal apparatus of the present invention provides not only improved fluid mixing and distribution to each underlying catalyst bed surface, but also offers other advantages including: decreased mixing tray height; easier maintenance, assembly and disassembly; and decreased amounts of fabrication material. In an embodiment, fluid may be evenly distributed to a catalyst bed from a fluid distribution unit comprising a nozzle tray including a plurality of nozzles, wherein the nozzles include at least one liquid inlet disposed tangentially to an inner surface of the nozzle.
    Type: Application
    Filed: November 27, 2012
    Publication date: April 4, 2013
    Inventors: Zackory S. Akin, Craig R. Boyak, Abdenour Kemoun, Ralph Evan Killen, Krishniah Parimi, Steven Xuqi Song, Steven Alden Souers
  • Publication number: 20040251646
    Abstract: A base for supporting and mobilizing equipment in accordance with the invention includes a plurality of supports interconnected by bridge members, with a wheel connected to at least one of the plurality of supports to support the base and enable the mobilization thereof, and releasable fasteners connecting the supports and bridge members and being shiftable between a release position wherein a support and bridge member are movable with respect to one another and a lock position wherein the support and bridge member are fixed with respect to one another. In a preferred form, the fasteners are manually actuated lock pins spring biased to the lock position. Also, in a preferred form, each support has a wheel connected thereto with at least one wheel having a lock.
    Type: Application
    Filed: June 10, 2003
    Publication date: December 16, 2004
    Inventor: Steven Alden Erbach
  • Patent number: D270828
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: October 4, 1983
    Inventor: Steven Alden