Abstract:

Hazard and operability analysis about the manual mistake operation in chemical processes, the computer aided HAZOP analysis technology based on analytic hierarchy process(AHP)and the explosion cases analysis program in chemical processes were discussed.Potential hazards were systematically analyzed from five aspects:material, equipment, process, human factor and environment.All potential process hazards could be found and their probabilities calculated, and all abnormal situations could be arranged in the order of probability.The technology could ensure complete and sound analysis and enhance the pertinence and operability of the safeguard measures.The causes of explosion accidents were classified into 5 categories, 46 kinds.The analysis of nitrobenzene prefractionator was taken as an example to explain real application of prevention and control of mistaken operations and the explosion accidents analysis technology in chemical processes.The analysis result indicated that using the technology and adopting the prevention and control measures recommended could effectively prevent the explosion accidents.