Patents by Inventor Roger D. Whitley

Roger D. Whitley 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).

  • RHO ZEOLITES AND METHOD OF MAKING THE SAME
    Publication number: 20200101438
    Abstract: Disclosed are novel, as-crystallized RHO zeolite compositions with improved uniformity in morphology. These RHO compositions are useful for preparing cation-exchanged RHO zeolites that can be used as adsorbents for oxygen and/or nitrogen with improved properties. The adsorbents can be used in pressure swing adsorption processes for selectively adsorbing oxygen and/or nitrogen from feed streams such as an air stream or crude argon stream. Also disclosed are novel methods of preparing RHO zeolites with improved morphology control.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 2, 2020
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Elizabeth M. Seibel, William Jack Casteel, JR., Garret Chi-Ho Lau, Roger D. Whitley
  • Multiple zeolite adsorbent layers in oxygen separation
    Patent number: 5529610
    Abstract: The present invention is an apparatus and process for separating oxygen from air by adsorption of at least nitrogen on multiple layers of air separation adsorbent in an adsorption bed wherein the multiple layers are Na X-zeolite followed by at least another layer of adsorbent selected from the group consisting of Ca X-zeolite, Li X-zeolite, Ca A-zeolite followed by Ca X-zeolite, Ca A-zeolite followed by Li X-zeolite, Ca X-zeolite followed by Li X-zeolite, Li X-zeolite followed by Ca X-zeolite and Mg A-zeolite followed by Ca X-zeolite.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: June 25, 1996
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Charles F. Watson, Roger D. Whitley, Michael L. Meyer
  • Vacuum swing adsorption process with mixed repressurization and provide product depressurization
    Patent number: 5411578
    Abstract: A process for separating a feed gas mixture into a more strongly adsorbable component and a less strongly adsorbable component in a plurality of adsorbent beds containing an adsorbent selective for the more strongly adsorbable component with two cocurrent depressurizations, first to provide product and then to provide a purge gas, and using a combination of less strongly adsorbable component and feed gas mixture to repressurize the adsorbent bed. Oxygen product can be recovered from air at high recovery using the process.
    Type: Grant
    Filed: May 10, 1994
    Date of Patent: May 2, 1995
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Charles F. Watson, Roger D. Whitley, Rakesh Agrawal, Ravi Kumar