Question

How is selective hydrogenation achieved?

(a) Heat supplied

(b) Catalyst used

(c) Reactants

(d) Products

This question was posed to me by my school teacher while I was bunking the class.

My question is taken from Catalytic Hydrogenation in division Hydrogenation of Unit Processes

Answer 1

Correct option is (b) Catalyst used

Explanation: Selective hydrogenation of the acetylene to ethylene is accomplished by passing the mixture, which also contains 10-35 per cent of hydrogen, over a catalyst at a temperature ranging from 200-315°C and at pressures of 45-155 psig.