Discussion
When a mixture of CO and H2 is heated at 573 K-673 K under 200-300 atmospheric pressure in the presence of a catalyst, methanol is produced. The catalyst used is
Answer: B
The catalyst is ZnO-Cr2O3.
Methanol is manufactured from synthesis gas (CO and H2). Under the high-pressure conditions given, 573-673 K and 200-300 atm, the textbook catalyst is a mixture of zinc oxide and chromium(III) oxide: CO + 2H2 → CH3OH.
Pd-BaSO4 is the poisoned catalyst of the Rosenmund reduction (acid chlorides to aldehydes), and Pt-BaSO4 is a similar supported metal. Nickel and copper chromite catalysts are used for other hydrogenations, not for this high-pressure methanol process.
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