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

doi:10.1016/j.cjche.2015.10.004

Chinese Journal of Chemical Engineering ›› 2015, Vol. 23 ›› Issue (12): 2065-2074.DOI: 10.1016/j.cjche.2015.10.004

• 第25届中国过程控制会议专栏 • 上一篇下一篇

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

Yuliang Zhang¹, Wentao Zhang², Beike Zhang ¹

1 College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China;
2 College of Automation Engineering, Beijing Polytechnic, Beijing 100176, China

收稿日期:2015-05-26 修回日期:2015-06-18 出版日期:2015-12-28 发布日期:2016-01-19
通讯作者: Beike Zhang

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

Yuliang Zhang¹, Wentao Zhang², Beike Zhang ¹

1 College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China;
2 College of Automation Engineering, Beijing Polytechnic, Beijing 100176, China

Received:2015-05-26 Revised:2015-06-18 Online:2015-12-28 Published:2016-01-19
Contact: Beike Zhang

摘要/Abstract

摘要： 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.

关键词: Qualitative simulation, Qualitative inference, HAZOP, Maloperation, Chemical process

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.

Key words: Qualitative simulation, Qualitative inference, HAZOP, Maloperation, Chemical process

Yuliang Zhang, Wentao Zhang, Beike Zhang . Automatic HAZOP analysis method for unsteady operation in chemical based on qualitative simulation and inference[J]. Chinese Journal of Chemical Engineering, 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.

参考文献

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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

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