Abstract
In the previous report, it was clarified that the qualities of coke im-proved, owing to elevation of coking properties of coal during carbonization from a view point of coke manufacture and physical changes in coking process by briquetting low-or non-caking coal, as compared with non-briquetting.
In this study, the author investigated the relation between briquetting pressure and the space of coal particles and moreover relative relations among briquetting conditions, the amount of α-picoline extracts of coal and characteristics of α-picoline extracts.From these results, coking mechanism of briquette coal has become clear.
