Patents by Inventor Per L. T. Gabrielsson

Per L. T. Gabrielsson 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).

  • Process for the reduction of SCR NOx emissions and apparatus therefor
    Patent number: 6550250
    Abstract: The invention concerns a process and an apparatus for reducing the content of nitrogen oxides (NOx) in the exhaust gases of diesel engines or turbines for stationary or mobile applications/vehicles in an SCR system by providing a stored source of liquid reducing agent and feeding the stored reducing agent to the exhaust gases, said process comprising transferring the liquid reducing agent from the external storage tank to a membrane storage tank equipped with an inner bellow consisting of a non-permeable flexible membrane, and a hydraulic or pneumatic displacement fluid located outside the inner bellow, filling the flexible inner bellow with liquid reducing agent and transferring the liquid reducing agent from the flexible inner bellow to the exhaust gases.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: April 22, 2003
    Assignee: Haldor Topsoe A/S
    Inventors: Svend-Erik Mikkelsen, Per L. T. Gabrielsson
  • Process for the reduction of SCR NOx emissions and apparatus therefore
    Publication number: 20020124568
    Abstract: The invention concerns a process and an apparatus for reducing the content of nitrogen oxides (NOx) in the exhaust gases of diesel engines or turbines for stationary or mobile applications/vehicles in an SCR system by providing a stored source of liquid reducing agent and feeding the stored reducing agent to the exhaust gases, said process comprising transferring the liquid reducing agent from the external storage tank to a membrane storage tank equipped with an inner bellow consisting of a non-permeable flexible membrane, and a hydraulic or pneumatic displacement fluid located outside the inner bellow, filling the flexible inner bellow with liquid reducing agent and transferring the liquid reducing agent from the flexible inner bellow to the exhaust gases.
    Type: Application
    Filed: February 22, 2002
    Publication date: September 12, 2002
    Inventors: Svend-Erik Mikkelsen, Per L.T. Gabrielsson