ABSTRACT
The hygroscopic nature means that jet fuel will inevitably be mixed with water during the process of storage, transportation, and filling, which can seriously affect flight safety. Therefore, this water needs to be removed reasonably. Three methods of gravity sedimentation, adsorption separation, and coalescence separation were used to remove traces of emulsified water from jet fuels. The effects of filtration velocity and concentration of continuous phase and dispersed phase on coalescence dewatering efficiency were investigated. The results show that with the increase in coalescence flow rate, the coalescence separation efficiency decreases gradually. For the jet fuels with water content from 22 to 1393 ppm, the free water content in the fuels at the outlet is all less than 15 ppm, With the increase of water before treatment, the dehydration efficiency of the equipment gradually increased. Gravity sedimentation and adsorption separation method have been limited by working conditions, large flow, and flexible operation of coalescence separation equipment, so it is an ideal method for traces of water treatment at present.
