Estimation of catalytic activity using an unscented Kalman filtering in condensation reaction

Wentao Cang; Huizhong Yang

doi:10.1016/j.cjche.2015.11.008

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Estimation of catalytic activity using an unscented Kalman filtering in condensation reaction

第25届中国过程控制会议专栏 | Updated：2026-01-06

- Estimation of catalytic activity using an unscented Kalman filtering in condensation reaction
- Estimation of catalytic activity using an unscented Kalman filtering in condensation reaction
- 中国化学工程学报（英文版） 2015年23卷第12期页码：1965-1969
- Affiliations：
  
  Key Laboratory of Advanced Process Control for Light Industry, Ministry of Education, Jiangnan University,Wuxi,China,214122
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2015.11.008
  中图分类号：
- 纸质出版：2015
- Accepted：
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Wentao Cang, Huizhong Yang. Estimation of catalytic activity using an unscented Kalman filtering in condensation reaction[J]. 中国化学工程学报（英文版）, 2015,23(12):1965-1969.

Wentao Cang, Huizhong Yang. Estimation of catalytic activity using an unscented Kalman filtering in condensation reaction[J]. Chin.J.Chem.Eng., 2015, 23(12): 1965-1969.
Wentao Cang, Huizhong Yang. Estimation of catalytic activity using an unscented Kalman filtering in condensation reaction[J]. 中国化学工程学报（英文版）, 2015,23(12):1965-1969. DOI： 10.1016/j.cjche.2015.11.008.

Wentao Cang, Huizhong Yang. Estimation of catalytic activity using an unscented Kalman filtering in condensation reaction[J]. Chin.J.Chem.Eng., 2015, 23(12): 1965-1969. DOI： 10.1016/j.cjche.2015.11.008.

摘要

Abstract

The catalytic activity of cation exchange resins will be continuously reduced with its use time in a condensation reaction for bisphenol A (BPA). For online estimation of the catalytic activity

a catalytic deactivation model is studied for a production plant of BPA

state equation and observation equation are proposed based on the axial temperature distribution of the reactor and the acetone concentration at reactor entrance. A hybrid model of state equation is constructed for improving estimation precision. The unknown parameters in observation equation are calculated with sample data. The unscented Kalman filtering algorithm is then used for on-line estimation of the catalytic activity. The simulation results show that this hybrid model has higher estimation accuracy than the mechanism model and the model is effective for production process of BPA.

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