A method for hydrogen purification of a low temperature Fischer-Tropsch flow with a high yield of intermediate oil

摘要

A method of hydrotreating a low temperature Fisher-Tropsch flow with a high yield of intermediate oils comprises separating the low temperature Fisher-Tropsch flow with high yields of intermediate distillates into a light effluent, a heavy effluent and an intermediate effluent, Supplying it from the top to the middle with the first, second, and third feed inlets of the hydrotreating reactor to perform the hydrotreating process; Mixing the recycled hydrogen fed to the hydrogen inlet with each of the three components in the hydrotreating reactor; And separating the reaction products. The method maintains and controls the stable temperature of the purification reaction bed, reduces the supply temperature of the lightweight component, reduces the waiting time of the intermediate component, and reduces the secondary cracking.