Comment on 鈥淐onceptual design of single-feed hybrid reactive distillation columns鈥? by R.M. Dragomir and M. Jobson, Chemical Engineering Science 60 (2005) 4377-4395
- 作者：Tobias Keller ; tobias.keller@bci-tu-dortmund.de ; Hanns Kuhlmann ; Andrzej Gó ; rak
- 关键词：Design ; Reactive azeotropes ; Residue curve map ; Dimethyl carbonate ; Diethyl carbonate ; Reactive distillation
- 刊名：Chemical Engineering Science
- 出版年：2012
- 期刊代码：18_00092509
- 类别：ce
- 出版时间：18 June, 2012
- 卷：75
- 期：Complete
- 页码：289-291
- 文件大小：398 K
摘要
We read the above-mentioned article by with interest. The authors present a new synthesis and design methodology for reactive distillation columns that feature both reactive and nonreactive sections. The proposed methodology is based on graphical techniques and uses the concept of stage composition lines in the transformed composition space. This methodology was applied to the syntheses of methyl tert-butyl ether (MTBE) and diethyl carbonate (DEC). The proposed methodology appears to be thorough and sound. However, we will show subsequently that a probably incorrect thermodynamic data-set was applied in the case of DEC synthesis. Consequently, incorrect results were obtained. Furthermore, we believe that the authors made a very questionable assumption in the calculation of the residue curve map in the transformed composition space in the case of the DEC synthesis, and thus, we will present a residue curve map that does not rely on that assumption.