Patents by Inventor Michael Freiert

Michael Freiert 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).

  • Cryogenic adsorption process for xenon recovery
    Patent number: 10295255
    Abstract: An adsorption process for xenon recovery from a cryogenic liquid or gas stream is described wherein a bed of adsorbent is contacted with the aforementioned xenon containing liquid or gas stream and adsorbs the xenon selectively from this fluid stream. The adsorption bed is operated to at least near full breakthrough with xenon to enable a deep rejection of other stream components, prior to regeneration using the temperature swing method. Operating the adsorption bed to near full breakthrough with xenon, prior to regeneration, enables production of a high purity product from the adsorption bed and further enables oxygen to be used safely as a purge gas, even in cases where hydrocarbons are co-present in the feed stream.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: May 21, 2019
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Philip A. Barrett, Neil A. Stephenson, Nicholas R. Stuckert, Michael Freiert, Hai Du, Rachael A. Masin, Garrett R. Swindlehurst
  • CRYOGENIC ADSORPTION PROCESS FOR XENON RECOVERY
    Publication number: 20180058758
    Abstract: An adsorption process for xenon recovery from a cryogenic liquid or gas stream is described wherein a bed of adsorbent is contacted with the aforementioned xenon containing liquid or gas stream and adsorbs the xenon selectively from this fluid stream. The adsorption bed is operated to at least near full breakthrough with xenon to enable a deep rejection of other stream components, prior to regeneration using the temperature swing method. Operating the adsorption bed to near full breakthrough with xenon, prior to regeneration, enables production of a high purity product from the adsorption bed and further enables oxygen to be used safely as a purge gas, even in cases where hydrocarbons are co-present in the feed stream.
    Type: Application
    Filed: August 23, 2016
    Publication date: March 1, 2018
    Inventors: Philip A. Barrett, Neil A. Stephenson, Nicholas R. Stuckert, Michael Freiert, Hai Du, Rachael A. Masin, Garrett R. Swindlehurst