Patents by Inventor Cristian Stefan IUHAS

Cristian Stefan IUHAS 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).

  • Publication number: 20240189760
    Abstract: A system for recovering methane from a biogas comprises a pressure swing adsorption (PSA) unit, a biogas inlet, a gas mixer and a surge tank. The PSA unit recovers methane from the biogas and directs one fraction of the recovered methane toward a product gas outlet. The PSA unit directs another fraction of the recovered methane toward a recycling line and directs remaining gases to an exhaust. The biogas inlet receives biogas from a biogas source. The gas mixer is fluidly connected to the biogas inlet, to the recycling line and to the PSA unit, forms a combination of the biogas received at the biogas inlet and of the recycled methane, and supplies the combination to the PSA unit for methane recovery. The surge tank is in one of the recycling line or in an exhaust line and reduces a pressure in the PSA unit to improve methane recovery efficiency.
    Type: Application
    Filed: November 2, 2021
    Publication date: June 13, 2024
    Inventors: Cristian Stefan IUHAS, Richard Peter Glynn JEWELL, Alberto TORRES
  • Publication number: 20230347277
    Abstract: A system for processing biogas, the system comprising: a container, a pressure swing adsorption (PSA) unit housed in the container, the PSA unit having: a plurality of beds containing adsorbent material, the adsorbent material configured to selectively adsorb gas species from the biogas to process the biogas, a rotary valve module for distributing flow of 5 the biogas within the PSA unit, an inlet for supplying the biogas to the plurality of beds from outside of the container, and an outlet for transporting the processed biogas away from the PSA unit.
    Type: Application
    Filed: January 8, 2021
    Publication date: November 2, 2023
    Inventors: Mohammad Ghasdi MANGHOOTAEE, Sophie GOUDREAU, Alberto TORRES, Cristian Stefan IUHAS, Richard Peter Glynn JEWELL, Vincenzo D'AGOSTINO, Stephane GAGNON