Question

In a fluidized bed reactor, what is the best way to achieve maximum heat and mass transfer rates?

(a) Using small particles

(b) Using large particles

(c) Simply dumping the particle and passing gas will do the job

(d) Increasing the gas flow rates

I have been asked this question during an online interview.

This question is from Types of Fluidization Operations topic in section Introduction of Fluidization Engineering

Answer 1

Right answer is (a) Using small particles

Easy explanation: More small particles more the surface area hence better transfer rates.