Pd-Fiberglass Catalysts for Selective Hydrogenation of Acetylene
YU. K. GULYAEVA, B. S. BALZHINIMAEV
Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia)
Keywords: fiberglass materials, Pd nanoparticles, selective hydrogenation of acetylene
Abstract
New Pd-catalysts based on fiberglass materials were prepared, characterized and tested in the selective hydrogenation of acetylene. In spite of extremely low palladium content, the catalysts exhibit high activity and selectivity due to the ability of glass to stabilize fine dispersed Pd particles 1 nm in size in the surface layers and to adsorb selectively only readily polarizable molecules (acetylene), in spite of the large excess of ethylene. As a result, when complete conversion of acetylene is achieved, an increase in ethylene reaches almost 60 %, which exceeds the selectivity of modern industrial catalysts.
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