Can EO and PO storage tanks be located in the same tank farm?

Both ethylene oxide (EO) and propylene oxide (PO) are flammable, explosive, and highly toxic chemicals. Although they are stored in semi-frozen tanks, for tanks holding such chemicals, it is recommended to maintain appropriate safety distances between them; they should not be placed in the same tank area to prevent a chain reaction in the event of a leak or other accident. The specific safety distances and layout rules for placement must be followed in accordance with relevant safety production regulations as well as regulations governing the storage and transportation of hazardous chemicals. Therefore, in general, it is not recommended to locate the storage tanks for EO and PO in the same tank farm. Of course, it is necessary to consult local regulations and rules, and please seek advice from professional safety engineers or relevant departments. .

Ethylene oxide is a liquefied hydrocarbon; its total storage capacity exceeds 300 cubic meters. The detailed regulations do not apply to it, and it must be designed in accordance with petrochemical regulations. According to clause 6.2.5 of these regulations, storage tanks should be arranged in groups, and the following requirements must be met: 1. Within the same tank group, tanks with the same or similar fire hazard classifications should be placed together； When the volume of a single tank is less than or equal to 1000 m3, storage tanks with different fire hazard categories can also be arranged in the same group ； 2 Storage tanks for volatile liquids should not be arranged in the same group as storage tanks for non-volatile liquids ； 3 The pressure storage tanks for flammable liquids can be arranged in the same group as the full-pressure storage tanks for liquefied hydrocarbons ； 4 Low-pressure storage tanks for flammable liquids can be arranged in the same group as atmospheric-pressure storage tanks ； 5 Light and heavy crude oil storage tanks should be arranged separately in the same group. Unless they are all changed to pressure vessels, they cannot be placed in the same vessel group

Thank you, sir upstairs! It indeed should be done in accordance with the petrochemical regulations.