Gaodong Yang

Study on Direct Hydration of Camphene to Isoborneol by Cation Exchange Resins

The direct hydration of camphene to isoborneol has been studied in the presence of strong acidic cation exchange resins as catalyst. The effect of various parameters such as temperature, catalyst loading, mass ratio of the reactants, and reaction time on the conversion of camphene was investigated to optimize the reaction conditions. Based on the optimized reaction conditions, a novel pilot-scale jet reactor was used to study the direct hydration of camphene. The kinetic studies of direct hydration reaction have been discussed in detail. A pseudo-homogeneous (PH) model was used to correlate the experimental data in the temperature range from 353.15 K to 383.15 K. The kinetic parameters were evaluated, which made the calculated results in excellent agreement with the experimental results.

A Study of Direct Hydration of Dihydromyrcene to Dihydromyrcenol Using Cation Exchange Resins as Catalyst

A study of direct hydration of dihydromyrcene (DHM) with H2O to produce dihydromyrcenol (DHMOH) has been carried out using cation exchange resins as catalysts in a batch stirred-tank reactor. The effect of different parameters such as agitating speed, catalyst type, catalyst loading, molar ratio of the reactants and solvent, temperature and solvent on the conversion of DHM were investigated to obtain the optimal conditions of the reaction. The kinetics of hydration process was studied in the temperature range from 333.15 K to 353.15 K. A pseudo-homogeneous kinetics model was used to explain the reaction rate and the reaction rate constants and the reaction activation energy were determined.