MASS-TRANSFER AND SOLUBILITY IN AUTOCATALYTIC OXIDATION OF CYCLOHEXANE

Mass transfer coefficients for the solution, without reaction, of oxygen in cyclohexane over a wide range of temperature and pressure have been measured in a flat interface reactor (FIR) and a gas sparged stirred-tank reactor (STR). Solubilities have also been measured and it is suggested that a modified Henry's law coefficient of 1. 09 multiplied by 10** minus **2 kmol/m**3 multiplied by (times) bar can be regarded as constant over the temperature range 293-435 K. The physical mass transfer coefficient in the STR shows very little variation over this temperature range and a value of 3. 5 multiplied by 10** minus **4 m/s can be assumed for 423-435 K.