KINETICS OF HYDROFORMYLATION OF 1-DODECENE USING HOMOGENEOUS HRH(CO)(PPH(3))(3) CATALYST

The kinetics of the HRh(CO)(PPh(3))(3) catalyzed hydroformylation of 1 -dodecene has been investigated in a temperature range of 323-343, K. The effect of 1-dodecene and catalyst concentration, P-H and P-CO, on the rate of reaction has been studied. The rate was found to be first order with respect to catalyst concentration and partial pressure of h ydrogen. The rate vs. P-CO shows a typical case of substrate inhibited kinetics. The rate was found to be first order with respect to 1-dode cene in the lower concentration range while at higher concentrations a zero order dependence was observed. A rate equation has been proposed and kinetic parameters evaluated. The activation energy was found to be 57.12 kJ/mol. A batch reactor model has been a used to predict the concentration-time profiles which were found to agree well with the ex perimental data at different temperatures. This indicates the applicab ility of the rate model over a wide range of conditions.