Support Effects on Palladium Catalysts for Methanol Fuel Applications
نویسنده
چکیده
Methanol, formaldehyde, carbon monoxide, and propylene conversion were examined in a laboratory flow reactor over three base-metal containing alumina-supported palladium (Pd) catalysts in addition to Pd on y-alumina catalyst. The base metals were cerium, barium, and a combination of the two. Experiments were performed to determine the effect of air to fuel ratio on lightoff temperatures of various feed components for the base-metal catalysts as compared to Pd on y-alumina. For a vehicle operating at fuel-rich or stoichiomemc conditions, the cerium containing catalyst gave the best overall performance among those tested. However, at lean conditions, all the catalysts had similar performance.
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