Catalytic behavior investigation of a novel anodized Al2O3/Al monolith in hydrolysis of dimethyl ether
•A novel anodic alumina monolith was applied for DME hydrolysis.•The product distributions on different acidic catalysts were studied.•The novel monolith has an excellent resistance to carbon deposition.
A novel porous alumina as monolithic support was prepared by anodization. The activity of the plate-type anodic alumina in dimethyl ether (DME) hydrolysis was compared with that of the commercial Al2O3 and zeolite catalysts. The results show that the hydration-treated anodic Al2O3/Al monolith exhibited higher activity than the commercial Al2O3 in DME hydrolysis reaction system. Meanwhile, the anodic Al2O3/Al monolith showed better catalytic performance in DME hydrolysis compared with the zeolite catalysts due to its less unfavorable by-products. Finally, an 80 h stability evaluation was carried out and the results show that the anodic γ-Al2O3/Al monolith has an excellent ability for coke suppression in DME hydrolysis.
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Journal: Catalysis Today - Volume 216, 1 November 2013, Pages 194–199