Preparation by torrefaction of a solid fuel useful as fuel for a coal-fired power plant involves heating a starting composition comprising a secondary recovered fuel material indirectly at specific mass temperature

摘要

Preparation by torrefaction of a solid fuel involves heating a starting composition indirectly, where the heating takes place at a mass temperature of 150 to 360[deg]C and a secondary recovered fuel (SRF) material is present in the starting composition. Independent claims are included for the following: (1) removal of at least one metal from a solid fuel involving: providing a solid fuel or the solid fuel obtained by using the method; reducing the thus obtained solid fuel to a particle size of less than 3 (preferably less than 2, especially less than 1) mm; and separating the at least one metal from the reduced solid fuel thus obtained; and (2) method (P1) for reduction of the 'total chlorine content' of a solid fuel obtained by the method, involving: washing the solid fuel with a solvent, in which solvent chlorine compounds present in the solid fuel dissolve.