| 摘要 |
Process for separating a mixed-phase hydrocarbonaceous effluent originating from the conversion of a hydrocarbonaceous feedstock in the presence of hydrogen at elevated temperature and pressure in a multiple separator system, which effluent contains hydrogen, normally liquid hydrocarbonaceous components and normally gaseous hydrocarbonaceous components by i) separating in a first separation zone the effluent into a first liquid phase (L1) and a first vapour phase (V1), ii) cooling the first vapour phase obtained to a temperature in the range between 25 and 85 DEG C and separating the cooled vapour phase in a second separation zone whilst substantially maintaining the pressure of the first separation zone into a second liquid phase (L2) and a second, hydrogen-rich vapour phase (V2), iii) separating the first liquid phase in a third separation zone whilst substantially maintaining the temperature of the first separation zone and at a pressure below 60 bar into a third liquid phase (L3) and a third vapour phase (V3), and iv) separating the second liquid phase in a fourth separation zone whilst substantially maintaining the temperature of the second separation zone and at a pressure below 60 bar into a fourth liquid phase (L4) which is at least partially recovered as product and a fourth vapour phase (V4), and wherein the first separation zone is operated at a temperature between 200 and 350 DEG C and in such a way that between 25 and 75 %w of the effluent is obtained in the first vapour phase (V1). |
