Patent ID: 6067916
Filing Date: 2000-05-30
Classification: C10J,F23G,F23L,Y02E,Y02P

Abstract:
A process for creating and utilizing gas from waste materials, wherein the waste materials comprise combustible components, the waste materials residing in a charging area above a grate and being conveyed along the grate in the furnace with combustion air being supplied to the furnace, the grate including at least two undergrate forced draft chambers arranged in the longitudinal direction of the grate, said process comprising: supplying combustion air to the undergrate forced draft chambers in such a way that the waste materials residing in the charging area above the grate at a first end of the grate are ignited while oxygen is supplied at a superstoichiometric level and such that, at a second end of the grate in the direction of slag removal, the combustion of the waste materials is limited to a substoichiometric level necessary for gasification of the combustible components.