| 摘要 |
The present invention relates to a method and to equipment for separating crude oil or gaseous condensates into the following fractions: fuel, diesel, light and heavy kerosene, light and medium gasoline as well as liquefied and dry gas. The present method comprises the following steps: (a) separating the vapours preferably after recovery heating at each upper stage; (b) feeding the separated vapours according to different paths for condensation; (c) condensing and fractioning the vapours; and (d) stage-heating and vaporising the crude residues with inter-stage separation of vapours and feeding of the latter into the column. The described equipment comprises the following elements: (e) at least one fractioning condenser and evaporators; and (f) a multistage device for separating the vapours, each stage being provided with a vapour separator; (g) the vapour separators and the top of the column are connected to the fractioning condenser; (h) heating and vaporisation of crude residues is performed at various stages in a kiln, with the vapours being separated between the different stages and further fed into the column. |
