In order to help recover heat for the endothermic gasification reaction by secondary combustion of CO and hydrogen, the fluidized bed must have?
(a) Multiple stages
(b) Single stage
(c) Two fluidized beds in series
(d) None of the mentioned
The question was asked in class test.
My enquiry is from Activation of Charcoal topic in portion Industrial Applications of Fluidized Beds of Fluidization Engineering