Automatic HAZOP analysis method for unsteady operation in chemical based on qualitative simulation and inference

Yuliang Zhang; Wentao Zhang; Beike Zhang

doi:10.1016/j.cjche.2015.10.004

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Automatic HAZOP analysis method for unsteady operation in chemical based on qualitative simulation and inference

第25届中国过程控制会议专栏 | Updated：2026-01-06

- Automatic HAZOP analysis method for unsteady operation in chemical based on qualitative simulation and inference
- Automatic HAZOP analysis method for unsteady operation in chemical based on qualitative simulation and inference
- 中国化学工程学报（英文版） 2015年23卷第12期页码：2065-2074
- Affiliations：
  
  2 College of Automation Engineering, Beijing Polytechnic,Beijing,China,100176
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2015.10.004
  中图分类号：
- 纸质出版：2015
- Accepted：
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Yuliang Zhang, Wentao Zhang, Beike Zhang. Automatic HAZOP analysis method for unsteady operation in chemical based on qualitative simulation and inference[J]. 中国化学工程学报（英文版）, 2015,23(12):2065-2074.

Yuliang Zhang, Wentao Zhang, Beike Zhang . Automatic HAZOP analysis method for unsteady operation in chemical based on qualitative simulation and inference[J]. Chin.J.Chem.Eng., 2015, 23(12): 2065-2074.
Yuliang Zhang, Wentao Zhang, Beike Zhang. Automatic HAZOP analysis method for unsteady operation in chemical based on qualitative simulation and inference[J]. 中国化学工程学报（英文版）, 2015,23(12):2065-2074. DOI： 10.1016/j.cjche.2015.10.004.

Yuliang Zhang, Wentao Zhang, Beike Zhang . Automatic HAZOP analysis method for unsteady operation in chemical based on qualitative simulation and inference[J]. Chin.J.Chem.Eng., 2015, 23(12): 2065-2074. DOI： 10.1016/j.cjche.2015.10.004.

摘要

Abstract

Comparing with continuous production process

unsteady operation process

such as startup and shutdown

tends to abnormal situations due to a large number of operations of operators and dynamic state changes involved. To guarantee a safe operation

process hazard analysis (PHA) is very important to proactively identify the potential safety problems. In the chemical process industry

hazard and operability (HAZOP) analysis is the mostwidely used method. In this paper

based on proposed qualitative simulation and inferencemethod

an automatic HAZOP analysis method for unsteady operation processes is proposed. Mass transfer and relationships among process variables are expressed by Petri net-directed graphmodel based fuzzy logic. Operating procedure is expressed according to a formal expression. Possible operation deviations from normal operating procedure are identified by using a group of guidewords. Hazards are identified automatically by qualitative simulation and inference when wrong operation process is performed. The method is validated by a rectification column system.

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