Patents by Inventor Quan Min Shao

Quan Min Shao 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).

  • Method for producing high purity hydrogen
    Patent number: 11945721
    Abstract: A hydrogen feed stream comprising oxygen and one or more impurities selected from the group consisting of nitrogen, argon, methane, carbon monoxide, carbon dioxide, and water, is purified using a cryogenic temperature swing adsorption (CTSA) process with high overall recovery of hydrogen. The CTSA is regenerated using an inert gas to prevent an explosive mixture of hydrogen and oxygen from occurring.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: April 2, 2024
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Shubhra Jyoti Bhadra, Jeffrey R. Hufton, Timothy C. Golden, Aaron Raymond Scott, Quan Min Shao, Vishrut Garg
  • METHOD FOR PRODUCING HIGH PURITY HYDROGEN
    Publication number: 20230249971
    Abstract: A hydrogen feed stream comprising oxygen and one or more impurities selected from the group consisting of nitrogen, argon, methane, carbon monoxide, carbon dioxide, and water, is purified using a cryogenic temperature swing adsorption (CTSA) process with high overall recovery of hydrogen. The CTSA is regenerated using an inert gas to prevent an explosive mixture of hydrogen and oxygen from occurring.
    Type: Application
    Filed: February 8, 2022
    Publication date: August 10, 2023
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Shubhra Jyoti Bhadra, Jeffrey R. Hufton, Timothy C. Golden, Aaron Raymond Scott, Quan Min Shao, Vishrut Garg
  • Reducing fluctuations in tail gas flow from an adsorption unit
    Patent number: 11167240
    Abstract: Pressure swing adsorption process for reducing fluctuations in the flow rate of tail gas from the adsorption unit. The flow rate of the stream of blowdown gas is regulated responsive signals from a sensor measuring the pressure and/or flow rate of the tail gas comprising the blowdown gas and purge gas effluent before the tail gas is introduced into a surge vessel.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: November 9, 2021
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Elizabeth M. D'Addio, Christopher H. Wood, Quan Min Shao
  • Reducing Fluctuations in Tail Gas Flow from an Adsorption Unit
    Publication number: 20200368665
    Abstract: Pressure swing adsorption process for reducing fluctuations in the flow rate of tail gas from the adsorption unit. The flow rate of the stream of blowdown gas is regulated responsive signals from a sensor measuring the pressure and/or flow rate of the tail gas comprising the blowdown gas and purge gas effluent before the tail gas is introduced into a surge vessel.
    Type: Application
    Filed: May 24, 2019
    Publication date: November 26, 2020
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Elizabeth M. D'Addio, Christopher H. Wood, Quan Min Shao