Question

The reactor wherein the flow of gas and/or substrate keeps the immobilized enzyme particles in a fluidized state is referred to as _____________

(a) batch membrane reactor

(b) continuous flow membrane reactor

(c) fluidized bed reactor

(d) packed bed reactor

I had been asked this question at a job interview.

This interesting question is from Immobilized Enzymes topic in section Immobilized Enzymes and their Uses of Enzyme Technology

Answer 1

Right choice is (c) fluidized bed reactor

For explanation: Fluidized bed reactor is one in which the flow of gas and/or substrate keeps the immobilized enzyme particles in a fluidized state. The reactor in which the enzyme is held within membrane tubes allowing the substrates to diffuse in and the products to diffuse out I called as batch membrane reactor. Whereas continuous version of this is referred to as continuous flow membrane reactor. Packed bed reactor is type enzyme reactor which contains a settled bed of immobilised enzyme particles.