Patents by Inventor James F. Colwell

James F. Colwell 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).

  • Claus unit treatment of shutdown tail gas
    Patent number: 10618005
    Abstract: The process for configuring or reconfiguring a sulfur removal plant having a plurality of Claus units that is greater than the number of downstream tail gas treating units (TGTUs) is disclosed. The process allows for the regeneration of one of the Claus units without shutting down any of the downstream TGTUs or the other Claus units. Specifically, the regeneration tail gas can be diverted to the reaction furnace of an in-service Claus unit, thereby allowing excess oxygen to be used to regenerate the Claus unit more efficiently, and without exceeding environmental SO2 emission requirements.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: April 14, 2020
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Matt E. Debrock, James F. Colwell, Megan M. Richard, Jon F. Gislain, John D. Corley
  • CLAUS UNIT TREATMENT OF SHUTDOWN TAIL GAS
    Publication number: 20190262773
    Abstract: The process for configuring or reconfiguring a sulfur removal plant having a plurality of Claus units that is greater than the number of downstream tail gas treating units (TGTUs) is disclosed. The process allows for the regeneration of one of the Claus units without shutting down any of the downstream TGTUs or the other Claus units. Specifically, the regeneration tail gas can be diverted to the reaction furnace of an in-service Claus unit, thereby allowing excess oxygen to be used to regenerate the Claus unit more efficiently, and without exceeding environmental SO2 emission requirements.
    Type: Application
    Filed: December 20, 2018
    Publication date: August 29, 2019
    Inventors: Matt E. Debrock, James F. Colwell, Megan M. Richard, Jon F. Gislain, John D. Corley
  • Claus unit treatment of shutdown tail gas
    Patent number: 10188988
    Abstract: The process for configuring or reconfiguring a sulfur removal plant having a plurality of Claus units that is greater than the number of downstream tail gas treating units (TGTUs) allows for the regeneration of one of the Claus units without shutting down any of the downstream TGTUs or the other Claus units. Specifically, the regeneration tail gas can be diverted to the reaction furnace of an in-service Claus unit, thereby allowing excess oxygen to be used to regenerate the Claus unit more efficiently, and without exceeding environmental SO2 emission requirements.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: January 29, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Matt E. Debrock, James F. Colwell, Megan M. Richard, Jon F. Gislain, John D. Corley
  • CLAUS UNIT TREATMENT OF SHUTDOWN TAIL GAS
    Publication number: 20170274324
    Abstract: The process for configuring or reconfiguring a sulfur removal plant having a plurality of Claus units that is greater than the number of downstream tail gas treating units (TGTUs) is disclosed. The process allows for the regeneration of one of the Claus units without shutting down any of the downstream TGTUs or the other Claus units. Specifically, the regeneration tail gas can be diverted to the reaction furnace of an in-service Claus unit, thereby allowing excess oxygen to be used to regenerate the Claus unit more efficiently, and without exceeding environmental SO2 emission requirements.
    Type: Application
    Filed: March 3, 2017
    Publication date: September 28, 2017
    Inventors: Matt E. Debrock, James F. Colwell, Megan M. Richard, Jon F. Gislain, John D. Corley