Abstract:On the premise of meeting the requirements of the state environmental protection,to reduce the running power consumption and production cost,the supercritical unit oxidation desulfurization fan energy-saving operation mode is studied.Theoretical calculation and practical operation results show that when the fan operation mode changes from the state of two in operation with one in readiness to the state of one in operation with one in readiness the energy saving problem is solved,which has some engineering application value.