Heat transfer in a high exothermic reactors and uniformity of temperature profile in the reactor are very important in industry. Heat transfer performances of three types of agitators, including two-oblique 45 degree agitator, 3 wide-blade propeller agitator and 3 blade marine type propeller agitator with different rotation speeds were investigated. The performances of different heat pipes were also investigated, and some heat pipes were applied in a stirred reactor to develop new reactor which can b...