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Y zeolite supporting noble metal catalysts, as the important industrial catalysts for aromatics hydrogenation, have received increasing attention in recent years. Pd M/Y bimetallic catalysts, where M is non noble metal element, were prepared to investigate the effects of the addition of a second metal. Pd M/Y catalysts were evaluated under the following conditions: H 2 pressure 4.2 MPa, MHSV 4.0 h -1 , sulfur content in feed 3000 μg/g. The microreactor results indicated that the second metal remarkably affects the hydrogenation activity of Pd/Y catalysts. Among them, Cr and W improve the sulfur resistance of Pd/Y, but La, Mn, Mo and Ag make the sulfur resistance worse and the second metals have no evident influence on product selectivity and acidic properties of the catalysts.
Y zeolite supporting noble metal catalysts, as the important industrial catalysts for aromatics hydrogenation, have received attention attention in recent years. Pd M / Y bimetallic catalysts, where M is non noble metal element, were prepared to investigate the effects of the addition of a The second metal. Pd M / Y catalysts were evaluated under the following conditions: H2 pressure 4.2 MPa, MHSV 4.0 h -1, sulfur content in feed 3000 μg / g. The microreactor results indicated that the second metal remarkably affects the hydrogenation activity of Pd / Y catalysts. Among them, Cr and W improve the sulfur resistance of Pd / Y, but La, Mn, Mo and Ag make the sulfur resistance worse and the second metals have no evident influence on product selectivity and acidic properties of the catalysts .