Process for the production of hydrocarbon fluids having a low aromatic content

Process to prepare very low sulphur, very low aromatic hydrocarbon fluids containing less than 5 ppm sulphur and having a content in aromatics below 100 ppm, boiling in the range of from 100 to 400° C. and having a boiling range of not more than 80° C., comprising at least the two successive steps of

• deep hydrodesulphurating of middle distillate down to less than 10 ppm sulphur, wherein the deep hydrodesulphurization of middle distillate is operated at a reaction temperature higher than 320° C. under a pressure higher than 70 bars and
• catalytic hydrogenating the desulphurized middle distillates of the preceding step at a temperature from 80 to 180° C. and at a pressure from 60 to 160 bars, with a supported nickel-containing catalyst, a hydrogen treat rate ranging from 100 to 300 Nm3/ton of feed, the catalytic hydrogenation being performed in at least two stages, wherein the first stage operates sulphur trapping on the supported nickel-containing catalyst, hydrogenation of substantially all unsaturated hydrocarbons and up to 90% hydrogenation of aromatics,
• wherein the middle distillate is issued from atmospheric distillation unit effluents or from atmospheric distillation unit and catalytic cracking effluents, such distillates boiling in the range of from 200° C. to 380° C.