Batch distillation in a column with a middle vessel
Batch distillation in a column with a middle vessel
复制标题
DOI：
10.1016/0009-2509(94)e0083-3
复制
发表时间：
1994-09
影响因子：
4.7
通讯作者：
A. G. Davidyan;V. Kiva;G. Meski;M. Morari
中科院分区：
文献类型：
--
作者：
A. G. Davidyan;V. Kiva;G. Meski;M. Morari
本文研究了一种新型间歇蒸馏塔，该塔由两个分离部分和中间的一个容器组成。研究了具有恒定相对挥发度的混合物。新列最重要的特征之一是它在单纯形的二元边上具有附加的稳态，这些状态不对应于纯分量。这些稳态是描述该过程的动态系统的鞍点和不稳定奇异点。额外稳态的存在、它们对参数的依赖性以及多一个参数的引入，增加了工艺的灵活性，并为间歇蒸馏提供了新的机会。例如，二元混合物可以在有限的再沸和回流比下分离成纯组分。
This paper examines a new type of a batch distillation column which is built up from two separation sections and a vessel in between. Mixtures with constant relative volatilities are investigated. One of the most important features of the new column is that it has additional steady states on binary edges of the simplex which do not correspond to pure components. These steady states are saddle and unstable singular points of a dynamic system describing the process. Existence of additional steady states, their dependence on parameters and the introduction of one more parameterqadd more flexibility to the process and provide new opportunities for batch distillation. For example, a binary mixture can be separated into pure components under finite reboil and reflux ratio.