Table 1: Advantages and disadvantages of three reactors.

V1 reactorH1 reactorH2 reactor

Diameter of membrane (cm)6.22.22.5
Area of membrane (m2)
Working volume (cm3)553535
Activation energy (kcal/mole)12.1113.1211.69
Turnover number (s−1)
Recovery rate of phenol in 90 min (ppm/(min m2))137944526338452
Pressure drop
Gravity×
Area of membrane×
Apparatus
Cost
Operating difficulty
Reactivity×

○ good, △ fair, × poor.