Patent ID: 6101959
Filing Date: 2000-08-15
Classification: F22B,F23C,F23G,F23K,F23N,Y02E

Abstract:
A method for combusting, in system having a combustor, a plurality of individual fuels having different heating values comprising:a) supplying to the combustor wherein combustion takes place, a composite fuel comprising a mixture of said individual fuels having a composite heating value, for producing products of combustion;b) controlling the rate at which the individual fuels are supplied to the combustor such that the composite heating value of said mixture of fuels in the combustor remains substantially constant;c) wherein the rate at which said individual fuels are supplied to the combustor varies in accordance with the temperature of the products of combustion; andd) wherein one of said individual fuels is oil shale whose heating value varies over a period of time during which combustion takes place, and another of said individual fuels has a heating value higher than that of said oil shale, the rate at which said another fuel is supplied to the combustor being dependent on the temperature of the products of combustion.