Question

Which of the following is not an example of bulk catalyst?

(a) Silica-alumina catalyst

(b) Molybdenum oxide supported on alumina

(c) Iron-molybdate

(d) Iron doped with alumina and potassium oxide

This question was addressed to me in class test.

My enquiry is from Concentration Gradients and Reaction Rates in Solid Catalysts topic in section Heterogenous Reactions of Bioprocess Engineering

Answer 1

Correct option is (b) Molybdenum oxide supported on alumina

To explain: The supported catalysts are the catalytically active materials which are dispersed over the high surface area support material. For example, hydrodesulphurization is carried out over molybdenum oxide supported on alumina.