What is the type of epichlorohydrin storage tank?
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Gentlemen, epichlorohydrin is a highly hazardous and flammable liquid; can an internal floating roof tank be used for its storage? What are the hazards of epichlorohydrin coming into contact with air?
It is best to use a spherical tank; if there is concern about contact with air, nitrogen sealing can be considered. Storage under pressure for Class A B with a boiling point below 45 degrees should be relatively safe.
Reply to 2# Jiang Zhiqing: Epichlorohydrin does not fall under category A B; it doesn’t seem appropriate to use pressure storage tanks for it – it’s somewhat wasteful, and the owner will have objections. I wonder if the inner floating surface will work?
For storage tanks with internal floating roofs, a nitrogen blanket is sufficient. However: Epichlorohydrin is a highly toxic flammable liquid; in the event of an emergency, its toxicity (the combustion produces highly toxic and corrosive gases such as phosgene and hydrogen chloride, whose hazards are greater than those of the substance itself) and flammability will be the main factors to consider in disaster relief efforts. More consideration should be given to poison prevention and contingency measures in emergency situations.
Reply to 4# liping_0127: What supporting measures? Let me explain in detail
First, let’s clarify: under what circumstances is an internal floating roof necessary, and when isn’t it needed? Is there some general guideline for this?
Using an internal floating roof isn’t appropriate, as there needs to be a vapor line that returns gas back into the tank at the time of shipment; therefore, it’s better to use a dome tank with a nitrogen seal, along with a vapor condenser, to control pressure balance using nitrogen
Due to the high saturated vapor pressure of propylene oxide at room temperature, it needs to be stored in low-pressure tanks. A common design involves dome tanks equipped with internal floating roofs and nitrogen sealing; attention should also be paid to the recovery of exhaust gases, for which methods such as incineration can be used as a reference.
Why is it made round? Is there any particular reason for that? I would like to know
May I ask how the original poster ended up designing it? We also need to build a similar storage tank now; what materials should be used for the internal floating roof and what anti-corrosion measures are available? Please give your advice