Contribution to the study of the resolidification state in semi-coke and of cokefaction pyrolysis in the latter
Difficulties in pushing the coke cake from coking ovens are due to a number of factors, which also have some bearing on the serviceable life of ovens. These factors can be linked to the coke itself, to the initial blend and to the conditions of carbonisation. With the aim of analysing, understanding and preventing the problems, a number of interacting phenomena are studied: the final behaviour of the plastic layer, the transition from semicoke into coke, and the mechanical behaviour of the coke cake. The experimental and theoretical investigation provides explanations and interpretations of the intrinsic mechanical properties of coke and of the formation of the central fissure. Results of compression tests reveal the effect of shrinkage on pushability, though analysis of results obtained with thrusting and non-thrusting coal shows that the determining factor is the combined effect of shrinkage and thrust.
Bibliographic Reference: EUR 14898 FR (1994) 59 pp., MF, ECU 4
Record Number: 199411032 / Last updated on: 1994-11-28
Original language: fr
Available languages: fr