Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous
fertiliser plant) employs a/an __________ bed gasifier.
(A) Entrained
(B) Moving
(C) Fixed
(D) Fluidised
fertiliser plant) employs a/an __________ bed gasifier.
(A) Entrained
(B) Moving
(C) Fixed
(D) Fluidised