초록 |
The hybrid catalysts of different copper based mixed metal oxide catalysts prepared by co-precipitation and γ-Al2O3 were investigated for steam reforming (SR) of dimethyl ether (DME). The DME SR is a combined reaction of DME hydrolysis and methanol SR, together with reverse water gas shift (RWGS) reaction. Although hydrolysis of DME is rate-determining step, consumption of its product (CH3OH) by followed reaction (methanol SR) over copper based catalysts seems to contribute to shifting the equilibrium of DME hydrolysis to right. In this regard, better performance of DME SR may be achieved by the design of copper based catalysts. |