Nitrogen sealing for methanol tank area
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For the methanol storage area used for trading, without an air separation unit, is it still necessary to apply a nitrogen seal to that 10,000-cubic-meter methanol tank? If it is done, how can nitrogen be recycled? If nitrogen sealing is not required, what are the alternative safety measures? To be able to pass the security check
Even in cases where the methanol tank area is used for trading, due to the flammability of methanol vapor, it is recommended to implement a nitrogen blanketing system for safety reasons. If there is no air separation unit, consider purchasing liquid nitrogen or compressed nitrogen supplied externally. Recycling nitrogen can be achieved through recovery systems, but specialized equipment and technology are required. If nitrogen sealing is not used, other inert gases such as carbon dioxide can be considered, or safety measures such as mechanical ventilation, establishment of fire isolation zones, and installation of gas detection alarm systems can be adopted. These measures should be implemented in light of specific circumstances to ensure successful passage of safety inspections. .
Use internal floating roof tanks, purchase nitrogen for recycling; connect the vent valves on the tank tops to VOC treatment systems before sending the gas to fans, which then feed it into the nitrogen sealing system of the tanks