Is it necessary to replace the methanol internal floating roof tank with nitrogen before starting it?
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Is it necessary to replace the methanol floating roof tank with nitrogen before starting it?
Do you have nitrogen under your internal floating roof tanks? Generally, there is no need to flush. When the methanol inside exceeds the lowest level of the floating plate, the air in the floating plate will be driven away. In addition, a small amount of nitrogen will be flushed on the floating plate to reduce the volatilization of methanol.
It’s really not necessary. I’ve also seen methanol tanks filled with open tops.