Multieffect distillation

摘要

A multieffect distillation process separates multicomponent mixtures containing three or more components into at least four product streams each enriched in one of the components. Thermally linked high pressure and low pressure columns are used in the process. The feed is fed to one of the two distillation columns and a product stream is produced from each end of this distillation column. A mixture stream also is produced from an intermediate location of this column and sent to the other distillation column. A product stream is produced from each end of the other distillation column.