. The most widely used crude topping column in refineries is the__________ column.(A) Bubble-cap(B) Packed bed(C) Fluidised bed(D) Perforated plate

. The most widely used crude topping column in refineries is the__________ column.
(A) Bubble-cap
(B) Packed bed
(C) Fluidised bed
(D) Perforated plate
by

1 Answer

Answer :

(A) Bubble-cap
by

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Last Answer : (C) The porosity of the bed when true fluidisation begins

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