![]() ![]() In addition, relief of hazardous material to the atmosphere is a common component of their design, because the backpressure that could develop in a closed relief header often makes pressure relief via a closed system impractical. The maximum inventory of material that could be released in the event of loss of primary containment could produce dire consequences. While these storage tanks operate at low pressure, their large volumes pose greater risk than pressure vessels of smaller volumes. It is, however, irresponsible to assume that low pressure implies low risk. ![]() These tanks enable storage of large quantities of material at low pressure, often in remote locations away from occupied buildings and public population centers. Low-pressure storage tanks abound in the chemical process industries (CPI) and are necessary to maintain a stable global supply of liquid raw materials, intermediates, and final products. Develop a safeguarding strategy for each tank at your site. If low-pressure tanks are compromised, they can release large volumes of material to the environment. This article is based on a presentation at the 2019 AIChE Spring Meeting and 15th Global Congress on Process Safety, New Orleans, LA.
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