The Optimal Operation of Batch Extractive Distillation System

• Main Authors: Sheng-yu Lin, 林聖育
• Other Authors: I-Lung Chien
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/s4u3p3

碩士 === 國立臺灣科技大學 === 化學工程系 === 94 === This research studied the optimal operation of batch extractive distillation system for Acetone-Methanol-Water system and Methyl acetate-Carbon tetrachloride- Cyclohexane system. By changing reboiler duty, flow rate of entrainer, reflux ratio, and with different object functions, study on the optimal operation of batch extractive distillation was carried out. The first part of this work studied the case when reboiler duty can be changed at each stage, and comparison was made with that of Yau(2005). The next part studied the optimization under constant reboiler duty policy at each stage but the value of this reboiler duty can be varied. In the final part of this study, operation of batch extractive distillation with middle vessel was investigated and applied to Acetone-Methanol-Water system. It was hope that this kind of operation with a middle vessel can overcome the problems of low yield and long operation time for the regular batch extractive distillation. The comparison was made on these two kinds of operations. The operating results in this work were obtained from computer simulation. Calculations were carried out with rigorous simulation software “Aspen plus®”and “Aspen dynamics™”.