Abstract
A large amount of organic solvents were used in chemical processes, and most of the discharged solvents were incinerated, resulting in CO2 discharge in the atmosphere. In order to reduce the discharge amount of CO2 gas, the used organic solvents are desirable to be refined and reused in chemical plants. Nowadays, the organic solvents were mainly refined by distillation method because this method can be applicable to many liquid mixtures. In this article, purification methods of typical organic solvents, widely used in industry are firstly explained. Then, applicability of membrane system to the purification process of the organic solvents is discussed briefly.
