fuel evaluation method and fuel adjustment method to avoid the slugging of low-grade fuel

摘要

PROBLEM TO BE SOLVED: To provide a fuel evaluation method and a fuel adjustment method for avoiding a slagging of low-grade fuel, which can avoid a slagging of low-grade fuel, such as brown coal and biomass.;SOLUTION: In the case of performing a fuel evaluation of low-grade fuel, an ash component composition obtained by subtracting a carbon acid portion and a sulfuric acid portion from an ash analysis value ashed at a prescribed temperature is corrected, and evaluation is performed with the value. As a result of this, since an ash composition is an ash composition by the original boiler combustion, the fuel evaluation is appropriate. Consequently, a mixture ratio of high-grade ash to the low-grade fuel is adjusted so as not to cause slagging fouling of the ash, and a mixed fuel excellent in combustibility can be provided.;COPYRIGHT: (C)2013,JPO&INPIT