Consequence Identification for Maloperation in Batch Process

doi:10.1016/S1004-9541(13)60620-5

Abstract

Abstract: Batch processes are important in chemical industry, in which operators usually play a major role and hazards may arise by their inadvertent acts. In this paper, based on hazard and operability study and concept of qualitative simulation, an automatic method for adverse consequence identification for potential maloperation is proposed. The qualitative model for production process is expressed by a novel directed graph. Possible operation deviations from normal operating procedure are identified systematically by using a group of guidewords. The proposed algorithm is used for qualitative simulation of batch processes to identify the effects of maloperations. The method is illustrated with a simple batch process and a batch reaction process. The results show that batch processes can be simulated qualitatively and hazards can be identified for operating procedures including maloperations. After analysis for possible plant maloperations, some measures can be taken to avoid maloperations or reduce losses resulted from maloperations.

Key words: maloperation, consequence identification, batch process, hazard and operability study, qualitative simulation

摘要： Batch processes are important in chemical industry, in which operators usually play a major role and hazards may arise by their inadvertent acts. In this paper, based on hazard and operability study and concept of qualitative simulation, an automatic method for adverse consequence identification for potential maloperation is proposed. The qualitative model for production process is expressed by a novel directed graph. Possible operation deviations from normal operating procedure are identified systematically by using a group of guidewords. The proposed algorithm is used for qualitative simulation of batch processes to identify the effects of maloperations. The method is illustrated with a simple batch process and a batch reaction process. The results show that batch processes can be simulated qualitatively and hazards can be identified for operating procedures including maloperations. After analysis for possible plant maloperations, some measures can be taken to avoid maloperations or reduce losses resulted from maloperations.

关键词: maloperation, consequence identification, batch process, hazard and operability study, qualitative simulation

ZHANG Yuliang, ZHANG Beike, MA Xin, CAO Liulin, WU Chongguang. Consequence Identification for Maloperation in Batch Process[J]. Chin.J.Chem.Eng., 2013, 21(12): 1347-1359.

张玉良, 张贝克, 马昕, 曹柳林, 吴重光. Consequence Identification for Maloperation in Batch Process[J]. Chinese Journal of Chemical Engineering, 2013, 21(12): 1347-1359.

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