Patents by Inventor Wolfgang Plückhahn

Wolfgang Plückhahn 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 and apparatus for preparing fuel from biomass
    Patent number: 10287525
    Abstract: Method and apparatus for preparation of fuel from biomass wherein the biomass is subjected to a heat treatment in a temperature range from 150 to 300 C, in a reactor pressurized with steam and air, wherein the pressure at completed treatment is released. The volume increase of steam and other gases from the pressure release is temporarily accumulated in a container of a flexible volume while steam and other gases are subjected to heat exchange in at least one heat exchanger so that condensable gases are condensed and release their heat of condensation in the at least one heat exchanger.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: May 14, 2019
    Assignee: Arbaflame Technology AS
    Inventors: Rune Brusletto, Wolfgang Plückhahn
  • Method and Apparatus for Preparing Fuel From Biomass
    Publication number: 20160002555
    Abstract: Method and apparatus for preparation of fuel from biomass wherein the biomass is subjected to a heat treatment in a temperature range from 150 to 300 C, in a reactor pressurized with steam and air, wherein the pressure at completed treatment is released. The volume increase of steam and other gases from the pressure release is temporarily accumulated in a container of a flexible volume while steam and other gases are subjected to heat exchange in at least one heat exchanger so that condensable gases are condensed and release their heat of condensation in the at least one heat exchanger.
    Type: Application
    Filed: February 19, 2014
    Publication date: January 7, 2016
    Inventors: Rune Brusletto, Wolfgang Plückhahn