Patents by Inventor Stacey Hyde

Stacey Hyde 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).

  • Process for recycling solvent used in an ethylene-based polymerization reaction and system therefor
    Patent number: 9708418
    Abstract: A process for recycling solvent used in an ethylene-based polymerization comprising: passing a solvent stream which has been used in a first ethylene-based solvent polymerization reactor through an online purification bed to produce a recycle solvent stream, wherein the solvent stream prior to being passed through the online purification bed comprises solvent, ethylene, hydrogen, polymerization by-products and optionally comonomer; and passing the recycle solvent stream from the online purification bed to a second ethylene-based solvent polymerization reactor; wherein the second ethylene-based solvent polymerization reactor exhibits a catalyst efficiency dip of less than or equal to 20% for no longer than a forty-eight hour period following a swap of the online purification bed to a regenerated purification bed which contains an adsorbent having low reactivity to alkenes is provided.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: July 18, 2017
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Stacey Hyde, Anthony J. Castelluccio, Frederik E. Gemoets
  • Process for Recycling Solvent Used in an Ethylene-Based Polymerization Reaction and System Therefor
    Publication number: 20130341567
    Abstract: A process for recycling solvent used in an ethylene-based polymerization comprising: passing a solvent stream which has been used in a first ethylene-based solvent polymerization reactor through an online purification bed to produce a recycle solvent stream, wherein the solvent stream prior to being passed through the online purification bed comprises solvent, ethylene, hydrogen, polymerization by-products and optionally comonomer; and passing the recycle solvent stream from the online purification bed to a second ethylene-based solvent polymerization reactor; wherein the second ethylene-based solvent polymerization reactor exhibits a catalyst efficiency dip of less than or equal to 20% for no longer than a forty-eight hour period following a swap of the online purification bed to a regenerated purification bed which contains an adsorbent having low reactivity to alkenes is provided.
    Type: Application
    Filed: February 16, 2012
    Publication date: December 26, 2013
    Applicant: Dow Global Technologies LLC
    Inventors: Stacey Hyde, Anthony J. Castelluccio, Frederik E. Gemoets