Benzene의 감압증류시 응축기 용량과 회수율과의 경제성 연구 = Economic Study of Condenser Capacity and Recovery Ratio on Vacuum Distillation of Benzene

다국어 초록 (Multilingual Abstract)

In order to achieve economic solvent recovery, the recovery ratio was tested on the vacuum distillation of benzene as a solvent by changing the condenser capacity.
The results obtained in this experiment were as follows;
1) As increasing the condenser capacity by 6.4 times from 35㎠ to 225㎠, solving recovery ratios were increased by 20%, 24%, and 31% at the bath temperature of 30℃, 40℃, and 50℃ respectively.
2) It was more effective for the solvent recovery ratio to use 10℃ coolant instead of 20℃ coolant, the differences of recovery ratios were about 28%∼32%.
The differences of solvent recovery ratios used 0℃ coolant were about 33%∼44% and those used -10℃ coolant were 38.7%∼49%.
3) Bath temperature and solvent recovery ratio are closely related to the condenser capacity. In the case of small condenser capacity, the recovery ratio was increased at low bath temperature. On the other hand, in larger condenser capacity, the recovery ratio was increased at the high bath temperature.
From the results of this study we found that the condenser capacity of 55㎡ was the optimal condition for the economic recovery of benzene.