Abstract
A \({\text{Pd/}}\gamma {\text{ - Al}}_{\text{2}} {\text{O}}_{\text{3}}\) membrane supported on a macroporous \(\alpha {\text{ - Al}}_{\text{2}} {\text{O}}_{\text{3}}\) tube was prepared by sol–gel processing and used in the partial hydrogenation of acetylene and 1,3-butadiene. The average pore diameter of the \({\text{Pd/}}\gamma {\text{ - Al}}_{\text{2}} {\text{O}}_{\text{3}}\) membrane was 3.6 nm. The gases were separated by Knudsen diffusion. The activity and selectivity of the \({\text{Pd/}}\gamma {\text{ - Al}}_{\text{2}} {\text{O}}_{\text{3}}\) membrane was compared to that of \({\text{Pd/}}\gamma {\text{ - Al}}_{\text{2}} {\text{O}}_{\text{3}}\) catalysts used in a conventional packed bed reactor. The highest selectivity to the partially hydrogenated products occurred when the reactant was premixed with H2 and was passed through the membrane wall.
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Lambert, C.K., Gonzalez, R.D. Activity and selectivity of a \({\text{Pd/}}\gamma {\text{ - Al}}_{\text{2}} {\text{O}}_{\text{3}}\) catalytic membrane in the partial hydrogenation reactions of acetylene and 1,3-butadiene. Catalysis Letters 57, 1–7 (1999). https://doi.org/10.1023/A:1019027027792
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DOI: https://doi.org/10.1023/A:1019027027792