Liquid Phase Hydrogenation Of P-Nitrotoluene In Microchannel Reactors

The hydrogenation of p-nitrotoluol to p-toluidin was done both in a fixed bed reactor and in a microchannel reactor made of a stack of microstructured aluminum wafers. Two procedures for the deposition of the catalytic active component palladium on the microstructured aluminum wafers are described. The hydrogenation results are discussed. Advantages and drawbacks of both reactor types are shown.