High ash coals
(A) Are soft & friable (poor strength and size stability)
(B) Require longer time of carbonisation as ash offers resistance to heat
transfer
(C) Produce larger quantity of coke oven gas
(D) None of these
(A) Are soft & friable (poor strength and size stability)
(B) Require longer time of carbonisation as ash offers resistance to heat
transfer
(C) Produce larger quantity of coke oven gas
(D) None of these