コークス製造プロセスにおける石炭資源利用技術の発展と今後の課題

抄録

Coal is very important resource for producing high quality metallurgical coke. In Japan, improvement of coke quality is strongly demanded to operate large inner volume blast furnaces smoothly. So, effective coal utilization technologies involving new cokemaking process were developed for a long period. Research themes are mainly focused on the expansion of coal resources useable for cokemaking, improving coke productivity and reducing energy consumption. Especially improvement of coke quality is very important, because it generally leads to increase the blending ratio of low grade coals in coal charge without deteriorating coke strength. In this paper, new cokemaking technologies such as DAPS process and SCOPE21 process are introduced. Understanding of these processes is expected to contribute to further innovative development of new cokemaking process.