Ethylation of coking benzene with ethanol over nano-sized ZSM-5 zeolites: Effects of rare earth oxides on catalyst stability

► Nano-sized ZSM-5 zeolites modified with Y2O3, La2O3, and CeO2. ► Catalyst for the ethylation of coking benzene with ethanol. ► Introduction of Y2O3 into nano-sized ZSM-5 zeolites eliminates the strong Brønsted acid sites.