ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,420, issued on April 7, was assigned to RWE GENERATION NL B.V. (Geertruidenberg, Netherlands).
"Torrefaction unit and method" was invented by Johannes Theodorus Gerardus Marie Eurlings (Obbicht, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "The torrefaction unit 1 comprises at least one multiple hearth furnace 2 which is heated by a heat transfer fluid 16 comprising hot water taken from a water space 21 of a steam drum 11. The heat transfer fluid 16 is guided through a water circuit 20 to a heating system 19 of the at least one multiple hearth furnace 2. This means the multiple hearth furnace 2 is heated to a torrefaction temperature in...