Research progress of chemical process stability analysis

doi:10.11949/j.issn.0438-1157.20170883

Abstract

Abstract:

Chemical processes may experience a large number of disturbances. Stability is a key of chemical process operability, related to product quality and process safety directly. It is a criterion to determine whether a process can return to its original operating point when disturbance disappears. The research on stability can help to understand and adjust the nonlinear behaviors in chemical processes, such as multiple steady state and oscillation. Therefore, with the consideration of stability analysis, the chemical processes can be operated smoothly and safely under disturbance for a long time. This review concludes the progress in stability analysis from four aspects:multiple steady state and stability analysis, optimization with guaranteed stability, dynamic behavior adjustment of chemical processes, and stability analysis under uncertainty.

Key words: safety, multiple steady state, stability, bifurcation, optimization, uncertainty

摘要：

化工过程在实际操作过程中时刻面临着扰动，稳定性作为化工过程可操作性的一个重要元素，决定着化工过程在扰动消失之后能否回到原来的操作点，直接关系到产品的质量以及过程的安全性。对于稳定性的研究有助于理解及调控化工过程的非线性行为，例如多稳态现象和持续振荡等，从而保证化工过程在扰动的作用下能够长周期、平稳、安全运行。本文从多稳态现象和多稳态点的稳定性分析、考虑稳定性的化工过程优化方法、化工过程稳定性的调控以及不确定性条件下的稳定性分析4个方面综述了化工过程稳定性分析的研究进展。

关键词: 安全, 多稳态现象, 稳定性, 分岔, 优化, 不确定性

CLC Number:

TQ018

JIANG Hao, CHEN Bingzhen. Research progress of chemical process stability analysis[J]. CIESC Journal, 2018, 69(1): 76-87.

蒋浩, 陈丙珍. 化工过程稳定性分析研究进展[J]. 化工学报, 2018, 69(1): 76-87.

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