A NOVEL MICROFABRICATED PD SIO2 MODEL CATALYST FOR THE HYDROGENATION OF 1,3-BUTADIENE/

The hydrogenation of 1,3-butadiene was successfully demonstrated using a microfabricated catalyst. The reaction was carried out at atmospher ic pressure and 100-degrees-C with a hydrogen to hydrocarbon ratio of 125. Data from a thin film Pd/silica catalyst is also presented for co mparison. The conversion for the microfabricated catalyst is more stab le and slightly lower than that for the thin film catalyst; however, t he geometric surface area of the thin film catalyst is 7.5 times great er than that of the microfabricated catalyst. The selectivity of the r eaction products is greatly different between the two catalysts. The m icrofabricated catalyst has a much lower selectivity for 1-butene and favors the 2-butenes more so than does the thin film catalyst.