ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,241, issued on Dec. 30, was assigned to Valmet Technologies Oy (Espoo, Finland).
"Method for heating a heat exchange medium in a fluidized bed boiler, a fluidized bed boiler, and a loopseal heat exchanger" was invented by Juha Hiljanen (Tampere, Finland), Pekka Lehtonen (Tampere, Finland), Pertti Tapiainen (Tampere, Finland) and Mikko Varonen (Tampere, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for heating a heat exchange medium in a fluidized bed boiler (100), the method comprising burning first fuel (165) in a first furnace (162) of the fluidized bed boiler (100) to produce first flue gas (163); recovering heat from the first ...