1-21　芳香族アミン添加が石炭の粘結性およびコークス化性に及ぼす影響評価

抄録

Coal fluidity is an important parameter in coal blending techniques for coke making because it strongly influences coke qualities. On the other hand, the amount of high fluidity coal has been limited and generally expe nsive. To cope with this problem, caking additive method which improves fluidity of coal has been developed and commercialized. It is important for the development of more effective caking additives to clarify the effective chemical substances on coal fluidity. Therefore, in this study, we investigated effect of four kinds of aromatic amines on coal fluidity and coking property of coal . Coal fluidity ameliorated with increasing the molecular weight of aromatic amine, and N,N'-di-2-naphthyl-1,4-phenylenediam ine (DNPD) was the most effective aromatic amine in this study. Carbonization tests in an electric furnace were conducted to investigate an effect of DNPD on coke strength. As a result of adding only 1wt% DNPD, fluidity of blended coal and coke strength (D rum Index) were highly improved.