A novel kind of multiple steady states characteristics in the dividing wall column

Erwei Song; Zengxi Li; Erqiang Wang

doi:10.1016/j.cjche.2018.10.003

Your Location：

Home >

Browse articles >

A novel kind of multiple steady states characteristics in the dividing wall column

Separation Science and Engineering | Updated：2026-01-06

- A novel kind of multiple steady states characteristics in the dividing wall column
- A novel kind of multiple steady states characteristics in the dividing wall column
- 中国化学工程学报（英文版） 2019年27卷第4期页码：869-876
- Affiliations：
  
  School of Chemical Sciences, University of Chinese Academy of Sciences,Beijing,China,100049
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.10.003
  中图分类号：
- 纸质出版：2019
- Accepted：
Scan QR Code
Erwei Song, Zengxi Li, Erqiang Wang. A novel kind of multiple steady states characteristics in the dividing wall column[J]. 中国化学工程学报（英文版）, 2019,27(4):869-876.

Erwei Song, Zengxi Li, Erqiang Wang. A novel kind of multiple steady states characteristics in the dividing wall column[J]. Chinese Journal of Chemical Engineering, 2019, 27(4): 869-876.
Erwei Song, Zengxi Li, Erqiang Wang. A novel kind of multiple steady states characteristics in the dividing wall column[J]. 中国化学工程学报（英文版）, 2019,27(4):869-876. DOI： 10.1016/j.cjche.2018.10.003.

Erwei Song, Zengxi Li, Erqiang Wang. A novel kind of multiple steady states characteristics in the dividing wall column[J]. Chinese Journal of Chemical Engineering, 2019, 27(4): 869-876. DOI： 10.1016/j.cjche.2018.10.003.

摘要

Abstract

In this article

one kind of multiple steady states (MSS) phenomenon was investigated for a dividing wall column (DWC). The four-section model constructed in Aspen Plus was employed to simulate two DWC cases:mixture of

-hexane

-heptane and

-octane; system of methanol

ethanol and

-propanol. It can be seen that there is a range of vapor split ratio in which multiple solutions of reflux ratio exist for fixed DWC configuration with the same feed and product streams. The width and the curve shapes of the MSS region

and the number of solutions change with the liquid split ratio. This MSS phenomenon was further explained using the component recovery around the prefractionator and the component recycling flow inside the DWC. This MSS phenomenon is helpful for DWC design by knowing the probable existence of multiple solutions in advance.

关键词

Keywords

references

浏览量

187

Downloads

CSCD

文章被引用时，请邮件提醒。

Submit

工具集

关联资源

Numerical Investigation on Effect of Vapor Split Ratio to Performance and Operability for Dividing Wall Column

Novel intensification strategy for the liquid-only transfer dividing wall column separating ternary mixtures based on the column grand composite curve

Simulated annealing-based optimal design of energy efficient ternary extractive dividing wall distillation process for separating benzene-isopropanol-water mixtures

Composition control and temperature inferential control of dividing wall column based on model predictive control and PI strategies

Application of the dividing wall column to olefin separation in fluidization methanol to propylene (FMTP) process