In order to study the heat transfer performance of heat pipe type gas-liquid-solid three-phase fixed-bed bubble-column reactor

heat transfer was investigated in a fixed-bed reactor with inner diameter of 50 mm and height of 800 mm， and filled with porous packing material inside the bed.A water-stainless steel heat pipe of φ16 mm×2 mm was inserted in the reactor and water and nitrogen flowed co-current upwards.The results showed that the amount of heat transferred increased with gas flow rate ug

and heat transfer became less sensitive to the gas flow rate when gas flow rate reached a certain value.An empirical equation for heat transfer coefficient between the bed layer of fixed-bed bubble-column reactor and the pipe wall of the heating section of heat pipe under the testing conditions was obtained by fitting the data with the least square method. The obtained equation was verified by heating simulation test.