Patents by Inventor Havard Nymoen

Havard Nymoen 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 preparing hydroxylamine from NO.sub.x -containing flue gases
    Patent number: 5489421
    Abstract: A process and device are disclosed for preparing hydroxylamine from NO.sub.x -containing flue gases. Nitrogen removal from the NO.sub.x -containing flue gases by absorption in an aqueous solution of FeII-EDTA and by desorption through vapor stripping of the NA from the thus obtained FeII(NO)-EDTA solution, with admixture of hydrogen, leading to the recovery of an NO/H.sub.2 gaseous mixture, is combined with hydroxylamine synthesis by catalytic reduction of NO with hydrogen.
    Type: Grant
    Filed: April 21, 1994
    Date of Patent: February 6, 1996
    Assignee: Europaische Atomgemeinschaft (Euratom)
    Inventors: Daniel Van Velzen, Heinrich Langenkamp, Dimosthenis Papameletiou, Havard Nymoen