Patents by Inventor Nils Bernard

Nils Bernard 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 gasifying cellulose spent liquor to produce superheated steam and green liquor of low carbonate concentration
    Patent number: 5814189
    Abstract: Provided is a novel process for the preparation of an aqueous solution of alkaline compounds from a generator gas, containing carbon monoxide, carbon dioxide, hydrogen and entrained alkaline compounds, which gas has been formed during partial combustion of cellulose spent liquors in a gas generator connected to a quench vessel.
    Type: Grant
    Filed: February 3, 1997
    Date of Patent: September 29, 1998
    Assignee: Kvaerner Pulping AB
    Inventors: Lars Stigsson, Nils Bernard