This catalyst facilitates the following Methanol Synthesis reactions:

Hydrogenation of Carbon Monoxide: 2H₂ + CO → CH₃OH

CO2 + 3 H2 → CH3OH + H2O

Water-Gas Shift Reaction: CO + H₂O → CO₂ + H₂

By effectively catalyzing these reactions, the Cu Zn Al2O3 catalyst ensures optimal methanol production.