Zeolite ZSM-5 is used in hydrocarbon isomerization, the alkylation of hydrocarbons, and as a catalyst supportZeolite ZSM-5 is used in hydrocarbon isomerization, alkylation of hydrocarbons. It is also used as a catalyst support. For example, copper is deposited on the zeolite and utilized for the preparation of acetaldehyde from ethanol by oxidation.