New coal chemistry - Coal as raw material for carbon production: some new aspects

• Published in: Philosophical transactions of the Royal Society of London. Series A: Mathematical and physical sciences 1981-03, Vol.300 (1453), p.171-182
• Main Author: Jasienko, S.
• Format: Article
• Language: English
• ISSN: 0080-4614; 2054-0272
• DOI: 10.1098/rsta.1981.0057

Characteristic changes in the constitution of hard coals (such as the nature and abundance of functional groups, the degree of order and the development of capillary structure) that occur in coalification and carbonization processes have a profound bearing on the rational utilization of coal in the coke and carbon industries. For blastfurnace coke manufacture the selection of blend components and their influence on the development of coke structure are very important. Modification of coke structure by additions of bituminous substances of coal and petroleum origin to blends opens up the possibility of preparing synthetic coking coal. In formed coke production, the nature of coal and binder and their distribution within the mixture are significant. The use of hard coals and their extracts and pitch as raw materials for improved carbon manufacture are discussed in terms of graphitizability. The adsorptive and mechanical properties of active carbons are dependent upon coal constitution and rank. It is concluded that the rapidly developing new technologies of coal utilization require a more elaborate classification system that would include the more important structural parameters of coal constitution.