Abstract: According to the analysis of the process characteristics and the energy consuming structure for FCC gasoline etherification unit, the determination of energy consumption reduction for the unit should take the process technology and the heat source of reboilers into consideration. The mixed phase bed & catalytic distillation combination process is an energy saving etherification process to some extent. The application of hot oil as the heat source of reboilers could reduce the energy consumption of about 30 percent compared to the use of steam as the heat source.