An industrial method of preparation of methanol is

The catalytic reduction of carbon monoxide is a step in the industrial process of making methanol. Water gas is employed for this purpose. An equimolar combination of water and gas $\mathrm{CO}$ and ${\mathrm{H}}_2$. a combination of chromium oxide and zinc oxide $\left(\mathrm{ZnO}-{\mathrm{Cr}}_2{\mathrm{O}}_3\right)$.produces methanol from water gas $\left({\mathrm{CH}}_3\mathrm{OH}\right)$. The reaction is occurring at 573 K. $\mathrm{CO}+2{\mathrm{H}}_2\stackrel{{\mathrm{ZnO}}_2-{\mathrm{Cr}}_2\mathrm{O}}{⟶}{\mathrm{CH}}_3\mathrm{OH}$.