(355t) Review on Separation of Close Boiling Mixtures

Close boiling mixture is the compositions of the vapour and the liquid phase which consists of a small boiling point. The separation of close boiling mixtures is the second major incentive for distillation research. There are a plethora of industrial mixtures consistiing of close boiling point namely, 3/4-picolines, alkyl phenols, and substituted anilines. In most cases, the separation of such mixtures cannot be economically realized by the conventional methods of separation. On the other hand, the design of extractive distillation is more complex than the conventional distillation schemes. The works aims to provide a brief review on various methodologies for separation of close boiling mixtures. The work presents a conventional and non- conventional based distillation process. The non-conventional distillation process such as pressure swing distillation, Azeotropic distillation, Extractive Distillation, Steam Distillation is reviewed in Depth from the recently published articles. Finally, Comparison of the separation techniques is provided.