Synthesis of Methyl Acetate by Dimethyl Ether Carbonylation over Cu/HMOR: Effect of Catalyst Preparation Method (cited: 2)
- Received Date: 2012-11-15
Abstract: Dimethyl ether carbonylation to methyl acetate was comparatively investigated over mor-denite supported copper (Cu/HMOR) catalysts prepared by different methods including evaporation, urea hydrolysis, incipient wetness impregnation and ion-exchange. The resultsshowed that Cu/HMOR prepared via iron-exchange method exhibited the highest catalytic activity due to the synergistic effect of active-site metal and acidic molecular sieve support. Conversion of 95.3% and methyl acetate selectivity of 94.9% were achieved under conditions of 210 oC, 1.5 MPa, and GSHV of 4883 h-1. The catalysts were characterized by nitrogen absorption, X-ray diffraction, NH3 temperature program desorption, and CO temperature program desorption techniques. It was found that Cu/HMOR prepared by ion-exchange method possessed high surface area, moderate strong acid centers, and CO adsorption cen-ters, which improved catalytic performance for the reaction of CO insertion to dimethyl ether.
|Citation:||Xue Zhang, Yu-ping Li, Song-bai Qiu, Tie-jun Wang, Ming-yue Ding, Qi Zhang, Long-long Ma, Yu-xiao Yu. Synthesis of Methyl Acetate by Dimethyl Ether Carbonylation over Cu/HMOR: Effect of Catalyst Preparation Method (cited: 2)[J]. Chinese Journal of Chemical Physics , 2013, 26(1): 77-82. doi: 10.1063/1674-0068/26/01/77-82|