F- T synthesis system and the method for carrying out F- T synthesis using it

The present invention provides a kind of F- T synthesis system, including purification fractionation unit；The purification fractionation unit includes: the first heating furnace, purification fractionating column, the first diesel oil stripper, the first diesel pump, the first overhead condenser, the first return tank of top of the tower, the first reflux pump, the first naphtha pump.The present invention also provides the methods for carrying out F- T synthesis using above-mentioned F- T synthesis system.F- T synthesis system of the invention, it is only necessary to carry out fraction transformation on the basis of existing apparatus, can be obtained, small investment is at low cost；Method of the invention provides a kind of method that new F- T synthesis obtains diesel oil, only need to be adjusted the segmentation that fraction can be realized to technological parameter, not only reduce costs, but also increased production naphtha, and improved the added value of F- T synthesis diesel oil.