Patents by Inventor Ann Marie Botelho

Ann Marie Botelho 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: 9108145
    Abstract: Process of reducing water, CO2 and N2O in feed air, which: a first adsorbent such as alumina (25-40% volume) and a second adsorbent such as X zeolite (60-75% volume) are used; the online time of the adsorbent is determined by determining the concentration measured by an analyzer for CO2 concentration at a position within the length of the second adsorbent when a maximum level of N2O is simultaneously obtained at the downstream end of the second adsorbent in the feed direction, wherein the online time is the time taken from commencing passing the feed air to the first and second adsorbents to the measurement by the analyzer of the determined concentration of CO2; at least the second adsorbent is regenerated by heated regeneration gas at a temperature of 140° C.-220° C.; and the molar ratio of the regenerating gas to feed air supplied during one iteration of the cycle is 0.08-0.5.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: August 18, 2015
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Mohammad Ali Kalbassi, Anthony Finot, Timothy Christopher Golden, Christopher James Raiswell, Ann Marie Botelho