Kinetic investigations on methanol steam reforming on PdZn catalysts in microchannel reactors and model transfer into the pressure gap region

摘要: Abstract In the present study, a microchannel reactor was used in an integral mode of operation to investigate parameter influences on steam reforming methanol PdZn catalysts prepared by washcoating microchannels with ZnO nanoparticles. Different models derived from significant concentration parameters were evaluated concerning their suitability describe kinetics reaction examined range. Water gas shift found be negligible network. Methanol decomposition, even though it influenced material, neglected for modelling since CO only at minor extent outlet. Superior isothermal behaviour is supposed responsible good correlations experimental results. One models, “global model”, transferred results experiments pressure gap region obtained similar suitable low-pressure application. Although this model extrapolation, and experiment accordance wide range absolute partial pressures, molar ratios water temperatures.