Patents by Inventor Armand A. Levasseur

Armand A. Levasseur 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).

  • APPARATUS AND METHOD OF CONTROLLING THE THERMAL PERFORMANCE OF AN OXYGEN-FIRED BOILER
    Publication number: 20120145052
    Abstract: Disclosed herein is a method of controlling the operation of an oxy-fired boiler; the method comprising combusting a fuel in a boiler; producing a heat absorption pattern in the boiler; discharging flue gases from the boiler; recycling a portion of the flue gases to the boiler; combining a first oxidant stream with the recycled flue gases to form a combined stream; splitting the combined stream into several fractions; and introducing each fraction of the combined stream to the boiler at different points of entry to the boiler.
    Type: Application
    Filed: November 16, 2011
    Publication date: June 14, 2012
    Applicant: ALSTOM TECHNOLOGY LTD.
    Inventors: Armand A. Levasseur, Shin G. Kang, James R. Kenney, Carl D. Edberg, David G. Turek
  • Dry sulfur dioxide (SO) scrubbing
    Patent number: 7850936
    Abstract: A system for removing sulfur dioxide (SO2) from SO2 laden flue gas resulting from the burning of fossil fuel, includes an absorber and first and second separators. The absorber captures SO2 from a flow of the SO2 laden flue gas with a sorbent. The first separator separates a first portion of the sorbent with captured SO2 both from a second portion of the sorbent with captured SO2 and from the flue gas. The second separator separates the second portion of sorbent from the flue gas.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: December 14, 2010
    Assignee: ALSTOM Technology Ltd
    Inventors: Armand A. Levasseur, George D. Mylchreest
  • FURNACE SYSTEM WITH INTERNAL FLUE GAS RECIRCULATION
    Publication number: 20090320725
    Abstract: A furnace system 10 including a combustion vessel 12 having an outlet end 19 and at least one aperture 20, 22 extending into an interior area 14 defined by the combustion vessel. The furnace system 10 includes a flue duct 42 coupled to the outlet end 19 and in fluid communication with the interior area. A recirculation duct 55 extends from the flue duct 42 to one or more of the apertures 20, 22 and provides fluid communication between the flue duct 42 and the interior area 14.
    Type: Application
    Filed: June 24, 2009
    Publication date: December 31, 2009
    Applicant: ALSTOM TECHNOLOGY LTD.
    Inventors: Shin G. Kang, Armand A. Levasseur, David G. Turek
  • DRY SULFUR DIOXIDE (SO2) SCRUBBING
    Publication number: 20090208397
    Abstract: A system for removing sulfur dioxide (SO2) from SO2 laden flue gas resulting from the burning of fossil fuel, includes an absorber and first and second separators. The absorber captures SO2 from a flow of the SO2 laden flue gas with a sorbent. The first separator separates a first portion of the sorbent with captured SO2 both from a second portion of the sorbent with captured SO2 and from the flue gas. The second separator separates the second portion of sorbent from the flue gas.
    Type: Application
    Filed: February 16, 2009
    Publication date: August 20, 2009
    Applicant: ALSTOM Technology Ltd
    Inventors: Armand A. Levasseur, George D. Mylchreest