Patents by Inventor Martti Aho

Martti Aho 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 preventing chlorine deposition on the heat-transferring surfaces of a boiler
    Patent number: 8052803
    Abstract: The invention relates to a method for preventing chlorine deposition on the heat-transferring surfaces of a boiler, particularly on the superheater, in which boiler a fuel with a chlorine content, such as a biomass or waste fuel, is burned. And to which steam boiler is fed, preferably in the superheater area, a compound with a sulphate content, which forms a particular reagent to fix alkali compounds. The said compound is ferric(III)sulphate, Fe2(SO4)3 and/or aluminium(III)sulphate, Al2(SO4)3.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: November 8, 2011
    Assignees: Kemira Oyj, Metso Power Oy
    Inventor: Martti Aho
  • Method for preventing chlorine deposition on the heat-transferring surfaces of a boiler
    Publication number: 20090038310
    Abstract: The invention relates to a method for preventing chlorine deposition on the heat-transferring surfaces of a boiler, particularly on the superheater, in which boiler a fuel with a chlorine content, such as a biomass or waste fuel, is burned. And to which steam boiler is fed, preferably in the superheater area, a compound with a sulphate content, which forms a particular reagent to fix alkali compounds. The said compound is ferric(III)sulphate, Fe2(SO4)3 and/or aluminium(III)sulphate, Al2(SO4)3.
    Type: Application
    Filed: June 12, 2006
    Publication date: February 12, 2009
    Inventor: Martti Aho