Comparative study of ethanol and DME combustion on Pt/ZSM-5 were performed.

DME presented larger CO₂ yields and higher wall temperatures than ethanol generally.

After 48 h combustion, CO₂ yields of DME and ethanol decreased by 13.8% and 38.9%, respectively.

Ethanol combustion caused more serious catalyst agglomerations and carbonaceous depositions.

The increased surface carbonaceous species were CC/CH after ethanol combustion and OCO after DME combustion.