| 摘要 |
Vacuum distillation process comprising supplying feed (7) to a furnace (11), passing heated feed comprising vapour and liquid from the furnace (11) into a distillation column (1) operating at a subatmospheric pressure, allowing vapour to rise inside the distillation column (1), contacting the rising vapour with a de-entrainment device (16) to remove entrained liquid from the rising vapour, spraying wash liquid (13) on the de-entrainment device (16), passing wash liquid from the distillation column (1) to a vessel (22), and withdrawing wash liquid from the vessel (22), wherein the wash liquid is cooled prior to being withdrawn from the vessel (22). |
