Patents by Inventor Jussi Mäntyniemi

Jussi Mäntyniemi 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).

  • Catalytic upgrading of pyrolytic vapors
    Patent number: 10711198
    Abstract: A method for forming catalytically treated pyrolytic vapor product from pyrolyzable material, the method comprising burning fuel in a fluidized bed boiler, thereby heating some particulate material; transferring at least some of the heated particulate material or some other heated particulate material to a pyrolysis reactor to pyrolyze some pyrolyzable material in the pyrolysis reactor; and conveying at least some pyrolytic vapor through a catalyst bed comprising catalyst material; and conveying at least part of the formed side products upstream back to the process; thereby producing the catalytically treated pyrolytic vapor product in an resource efficient manner. In addition, a system configured to produce catalytically treated pyrolytic vapor product from pyrolyzable material.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: July 14, 2020
    Assignee: Valmet Technologies Oy
    Inventors: Jukka Heiskanen, Sara Kaerki, Erkki Vaelimaeki, Reyhaneh Shenassa, Jussi Maentyniemi, Pekka Jokela, Andrea Gutierrez, Joakim Autio, Janne Asikkala
  • CATALYTIC UPGRADING OF PYROLYTIC VAPORS
    Publication number: 20180057753
    Abstract: A method for forming catalytically treated pyrolytic vapor product from pyrolyzable material, the method comprising burning fuel in a fluidized bed boiler, thereby heating some particulate material; transferring at least some of the heated particulate material or some other heated particulate material to a pyrolysis reactor to pyrolyze some pyrolyzable material in the pyrolysis reactor; and conveying at least some pyrolytic vapor through a catalyst bed comprising catalyst material; and conveying at least part of the formed side products upstream back to the process; thereby producing the catalytically treated pyrolytic vapor product in an resource efficient manner. In addition, a system configured to produce catalytically treated pyrolytic vapor product from pyrolyzable material.
    Type: Application
    Filed: April 13, 2016
    Publication date: March 1, 2018
    Inventors: Jukka Heiskanen, Sara Kaerki, Erkki Vaelimaeki, Reyhaneh Sheenassa, Jussi Maentyniemi, Pekka Jokela, Andrea Gutierrez, Juakim Autio, Janne Asikkala
  • Arrangement in recovery boiler
    Patent number: 7434543
    Abstract: The invention relates to an arrangement in a recovery boiler, into which spent liquor to be combusted and combustion air are fed, the arrangement comprising superheaters in the upper part of the recovery boiler for recovering heat. Instead of screen tubes the invention is provided with a superheater formed of horizontal elements.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: October 14, 2008
    Assignee: Kvaerner Power Oy
    Inventors: Antti Raukola, Jussi Mäntyniemi
  • System for feeding combustion air in a soda recovery boiler
    Patent number: 6932000
    Abstract: A method and a system for feeding combustion air of a soda recovery boiler to a furnace. The air is fed to the boiler furnace as primary air jets and auxiliary airjets, which are substantially shorter than the primary air jets. At least one primary airjet is placed between two opposite auxiliary air jets.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: August 23, 2005
    Assignee: Kvaerner Power Oy
    Inventors: Tuomo Ruohola, Jussi Mäntyniemi