Patents by Inventor Doug HUELSMAN

Doug HUELSMAN 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: 10099213
    Abstract: The present disclosure relates to processes for regenerating catalysts. In certain aspects, a process for regenerating a deactivated catalyst disposed in a first organic material includes removing a substantial portion of the first organic material from the catalyst to provide a dewaxed catalyst having less than about 40 wt % (e.g., less than about 20%) organic material disposed thereon. The dewaxed catalyst is then contacted with a flow of a substantially inert gas at a temperature of at least about 200° C. to provide an inert gas-treated catalyst having less than about 10 wt % organic material disposed thereon. The inert gas-treated catalyst is then contacted with an oxygen-containing gas at a temperature of at least about 200 ° C. to form an oxidized catalyst (e.g., having less than 2 wt % carbonaceous material disposed thereon). The oxidized catalyst is then contacted with a hydrogen-containing gas at a temperature of at least about 200° C. to form a regenerated catalyst.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: October 16, 2018
    Assignee: Clariant Corporation
    Inventors: Jae Hyung Kim, Doug Huelsman, Jeffery L. Braden
  • Publication number: 20170144144
    Abstract: The present disclosure relates to processes for regenerating catalysts. In certain aspects, a process for regenerating a deactivated catalyst disposed in a first organic material includes removing a substantial portion of the first organic material from the catalyst to provide a dewaxed catalyst having less than about 40 wt % (e.g., less than about 20%) organic material disposed thereon. The dewaxed catalyst is then contacted with a flow of a substantially inert gas at a temperature of at least about 200° C. to provide an inert gas-treated catalyst having less than about 10 wt % organic material disposed thereon. The inert gas-treated catalyst is then contacted with an oxygen-containing gas at a temperature of at least about 200 ° C. to form an oxidized catalyst (e.g., having less than 2 wt % carbonaceous material disposed thereon). The oxidized catalyst is then contacted with a hydrogen-containing gas at a temperature of at least about 200° C. to form a regenerated catalyst.
    Type: Application
    Filed: November 16, 2016
    Publication date: May 25, 2017
    Inventors: Jae Hyung KIM, Doug HUELSMAN, Jeffery L. BRADEN