Abstract: Storage and transportation tank farms constitute an indispensable link in the production and operation of refining and chemical enterprises. Most tanks within these tank farms are atmospheric storage tanks that contain various hazardous chemicals, leading to high operational risks. Storage tank accidents are among the major accident types in refining and chemical enterprises. This paper systematically summarizes accidents and incidents of atmospheric storage tanks during production, operation and process operation in petroleum refining and chemical enterprises in recent years. It analyzes failure causes and categorizes failure modes. Combined with national standards, industry codes and work safety operating procedures, this paper identifies key operational links and control measures for the production, operation and process operation of atmospheric storage tanks in oil tank farms. This study aims to improve safety management performance and guarantee the safe operation of oil tank farms.

Key words: oil storage tank farm, atmospheric storage tank, failure modes, failure factors