BED MATERIAL FOR BUBBLING FLUIDISED BED COMBUSTION

摘要

The invention is in the technical field of bubbling fluidized bed combustion and relates to the use of ilmenite particles with an average particle size dp between 0.1 mm and 1.8 mm as bed material for a bubbling fluidized bed (BFB) boiler with an excess air ratio (») below 1.3 and to a method for operating a bubbling fluidized bed (BFB) boiler, comprising carrying out the combustion process with a bubbling fluidized bed comprising ilmenite particles and setting the excess air ratio (») to a value below 1.3.