In the electric are furnace (EAF) process, the use of coal plays a maj
or part in the control of the descent of the scrap charge, in the effi
ciency of heat transfer to the charge and in the metallurgical treatme
nt of the liquid bath, In order to increase the efficiency and the amo
unt of coal in the EAF, several technologies have been developed in Fr
ance in the recent years.