| Summary: | 碩士 === 明志科技大學 === 環境與安全衛生工程系環境工程碩士班 === 103 === Each manufacturing processing unit in the petrochemical industry involves different conditions and hazard levels. With changes in the operating environment, aging equipment can damage associated facilities, pipelines, and pipe racks, which can precipitate hazardous-substance leaks. These accidents typically cause a chain of reactions in equipment damage or failures and expose operators to numerous risks. This study collected 349 cases of occupational accidents that occurred between 2000 and 2010 and used statistical methods (e.g., contingency tables and Analysis of Variance and Bayesian Network) to analyze accident distributions and trends.
From the BBN results, the main causes of fires, explosions, and contact with harmful substances in the petrochemical industry were related to the use of flammable, pyrophoric, and explosive substance. These accidents occurred primarily in enterprises with 30 to 99 employees and the workers type was machinery operators that age was between 25 to 29 years old working on the manufacturers of chemical materials or chemical products. When maintaining/replacing or dismantling factory equipment, the employees came into contact with material substances and did not follow standard operating procedures/methodology or used equipment improperly, they frequently suffered injuries from contact with harmful substances or caused fires or explosions. In addition, the results indicated that establishing adequate risk-assessment systems and self-inspection systems facilitates the early detection of potential safety hazards in devices, pipelines, and connecting components. Early safety-hazard detection facilitates the avoidance of unsafe operation methods or procedures. The results also indicated that when contractors provide pre-employment training, convene toolbox talks, and supply employees with appropriate personal protection equipment (PPE), major occupational accidents in the petrochemical industry are effectively reduced.
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